@Service
public abstract class FantasyGame {
private static final Log LOG = LogFactory.getLog(FantasyGame.class);
protected FantasyTeam fantasyTeam;
public FantasyGame() {}
public void tradeForTomorrow() throws Exception {
tradeForDate(DateUtil.getGameTomorrow());
}
public void tradeForDate(Date date) throws Exception {
BbcLeague bbcLeague = getLeague(date);
Starters expectedStarters = fantasyTeam.getStrategy().pickStarters(date, bbcLeague);
Starters actualStarters = tradeForStarters(expectedStarters);
boolean startersSet = actualStarters.equals(expectedStarters);
System.out.println("starters look good - " + startersSet);
}
public abstract BbcLeague getLeague(Date date) throws IOException;
public abstract Starters tradeForStarters(Starters starters) throws IOException;
}
/**
* MDC server
*
* @author yjiang
*/
public abstract class MDCServer extends IoHandlerAdapter {
static final Log log = LogFactory.getLog(MDCServer.class);
static final AtomicInteger counter = new AtomicInteger(0);
/** the the max size of a packet, 32KB */
static int MAX_SIZE = 10240 * 1024; // test
protected InetSocketAddress address;
protected Selector selector;
protected ServerSocketChannel server;
protected final int PROCESS_NUMBER = 4;
protected static Configuration _conf;
protected IoAcceptor acceptor;
protected boolean isRunning = false;
protected boolean testKey() {
String data = UID.random(24);
byte[] bb = RSA.encode(data.getBytes(), TConn.pub_key);
if (bb != null) {
bb = RSA.decode(bb, TConn.pri_key);
if (bb != null && data.equals(new String(bb))) {
return true;
}
}
return false;
}
/** Close. */
public void close() {
if (selector != null) {
selector.wakeup();
try {
selector.close();
} catch (IOException e1) {
log.warn("close selector fails", e1);
} finally {
selector = null;
}
}
if (server != null) {
try {
server.socket().close();
server.close();
} catch (IOException e) {
log.warn("close socket server fails", e);
} finally {
server = null;
}
}
}
/**
* Instantiates a new MDC server.
*
* @param host the host
* @param port the port
*/
protected MDCServer(String host, int port) {
_conf = Config.getConfig();
address = (host == null) ? new InetSocketAddress(port) : new InetSocketAddress(host, port);
/** initialize app command */
Command.init();
/** initialize the connection center */
TConnCenter.init(_conf, port);
synchronized (_conf) {
/** load public key from database */
TConn.pub_key = SystemConfig.s("pub_key", null);
TConn.pri_key = SystemConfig.s("pri_key", null);
/** initialize the RSA key, hardcode 2048 bits */
if (TConn.pub_key == null
|| TConn.pri_key == null
|| "".equals(TConn.pub_key)
|| "".equals(TConn.pri_key)) {
/** print out the old state */
log.warn(
"the pub_key or pri_key missed, the old state are pub_key:["
+ TConn.pub_key
+ "], pri_key:["
+ TConn.pri_key
+ "]");
Key k = RSA.generate(2048);
TConn.pri_key = k.pri_key;
TConn.pub_key = k.pub_key;
/** print out the new public key */
log.warn("create new RSA key pair, pub_key:[" + TConn.pub_key + ']');
/** set back in database */
SystemConfig.setConfig("pri_key", TConn.pri_key);
SystemConfig.setConfig("pub_key", TConn.pub_key);
}
MAX_SIZE = SystemConfig.i("mdc.max_size", MAX_SIZE);
}
}
/**
* Start.
*
* @return the MDC server
*/
public abstract MDCServer start();
/** Stop. */
public void stop() {
acceptor.unbind();
}
/**
* Service.
*
* @param o the o
* @param session the session
*/
void service(IoBuffer o, IoSession session) {
try {
// System.out.println(o.remaining() + "/" + o.capacity());
session.setAttribute("last", System.currentTimeMillis());
SimpleIoBuffer in = (SimpleIoBuffer) session.getAttribute("buf");
if (in == null) {
in = SimpleIoBuffer.create(4096);
session.setAttribute("buf", in);
}
byte[] data = new byte[o.remaining()];
o.get(data);
in.append(data);
// log.debug("recv: " + data.length + ", " +
// session.getRemoteAddress());
while (in.length() > 5) {
in.mark();
/**
* Byte 1: head of the package<br>
* bit 7-6: "01", indicator of MDC<br>
* bit 5: encrypt indicator, "0": no; "1": encrypted<br>
* bit 4: zip indicator, "0": no, "1": ziped<br>
* bit 0-3: reserved<br>
* Byte 2-5: length of data<br>
* Byte[…]: data array<br>
*/
byte head = in.read();
/** test the head indicator, if not correct close it */
if ((head & 0xC0) != 0x40) {
log.info("flag is not correct! flag:" + head + ",from: " + session.getRemoteAddress());
session.write("error.head");
session.close(true);
return;
}
int len = in.getInt();
if (len <= 0 || len > MAX_SIZE) {
log.error(
"mdcserver.Wrong lendth: "
+ len
+ "/"
+ MAX_SIZE
+ " - "
+ session.getRemoteAddress());
session.write("error.packet.size");
session.close(true);
break;
}
// log.info("packet.len:" + len + ", len in buffer:" +
// in.length());
if (in.length() < len) {
in.reset();
break;
} else {
// do it
byte[] b = new byte[len];
in.read(b);
// log.info("stub.package.size: " + len + ", head:" + head +
// ", cmd:" + Bean.toString(b));
// log.info("stub.package.size: " + len + ", head:" + head);
/** test the zip flag */
if ((head & 0x10) != 0) {
b = Zip.unzip(b);
}
final TConn d = (TConn) session.getAttribute("conn");
if (d != null) {
/** test the encrypted flag */
if ((head & 0x20) != 0) {
b = DES.decode(b, d.deskey);
}
final byte[] bb = b;
/** test if the packet is for mdc or app */
new WorkerTask() {
@Override
public void onExecute() {
d.process(bb);
}
}.schedule(0);
session.setAttribute("last", System.currentTimeMillis());
} else {
session.write("error.getconnection");
log.error("error to get connection: " + session.getRemoteAddress());
session.close(true);
}
}
}
} catch (Throwable e) {
log.error("closing stub: " + session.getRemoteAddress(), e);
session.write("exception." + e.getMessage());
session.close(true);
}
}
/*
* (non-Javadoc)
*
* @see
* org.apache.mina.core.service.IoHandlerAdapter#sessionCreated(org.apache
* .mina.core.session.IoSession)
*/
public void sessionCreated(IoSession session) throws Exception {
log.info("stub created:" + session.getRemoteAddress());
Counter.add("mdc", "connection", 1);
TConn d = new TConn(session);
d.set("x-forwarded-for", session.getRemoteAddress().toString());
session.setAttribute("conn", d);
}
/*
* (non-Javadoc)
*
* @see
* org.apache.mina.core.service.IoHandlerAdapter#sessionClosed(org.apache
* .mina.core.session.IoSession)
*/
public void sessionClosed(IoSession session) throws Exception {
log.info("closed stub: " + session.getRemoteAddress());
TConn d = (TConn) session.getAttribute("conn");
if (d != null) {
d.close();
session.removeAttribute("conn");
}
}
/*
* (non-Javadoc)
*
* @see
* org.apache.mina.core.service.IoHandlerAdapter#sessionIdle(org.apache.
* mina.core.session.IoSession, org.apache.mina.core.session.IdleStatus)
*/
public void sessionIdle(IoSession session, IdleStatus status) throws Exception {
if (IdleStatus.BOTH_IDLE.equals(status)) {
Long l = (Long) session.getAttribute("last");
if (l != null && System.currentTimeMillis() - l > 60 * 1000) {
session.close(true);
}
}
}
/*
* (non-Javadoc)
*
* @see
* org.apache.mina.core.service.IoHandlerAdapter#messageReceived(org.apache
* .mina.core.session.IoSession, java.lang.Object)
*/
public void messageReceived(IoSession session, Object message) throws Exception {
// System.out.println(message);
if (message instanceof IoBuffer) {
service((IoBuffer) message, session);
}
}
/**
* Creates the tcp server.
*
* @param host the host
* @param port the port
* @return the MDC server
*/
public static synchronized MDCServer createTcpServer(String host, int port) {
return new TDCServer(host, port);
}
/**
* Creates the udp server.
*
* @param host the host
* @param port the port
* @return the MDC server
*/
public static synchronized MDCServer createUdpServer(String host, int port) {
return new UDCServer(host, port);
}
/*
* (non-Javadoc)
*
* @see
* org.apache.mina.core.service.IoHandlerAdapter#exceptionCaught(org.apache
* .mina.core.session.IoSession, java.lang.Throwable)
*/
@Override
public void exceptionCaught(IoSession session, Throwable cause) throws Exception {
TConn d = (TConn) session.getAttribute("conn");
if (d != null && d.valid()) {
App.bye(d);
}
}
}
/** @author Javier Paniza */
public class MetaFinder implements Serializable {
private static Log log = LogFactory.getLog(MetaFinder.class);
private static Map argumentsJBoss11ToEJBQL;
private static Map argumentsToHQL;
private static Map tokensToChangeDollarsAndNL;
private String name;
private String arguments;
private boolean collection;
private String condition;
private String order;
private MetaModel metaModel;
public String getArguments() {
arguments = Strings.change(arguments, "String", "java.lang.String");
arguments = Strings.change(arguments, "java.lang.java.lang.String", "java.lang.String");
return arguments;
}
public Collection getMetaPropertiesArguments() throws XavaException {
StringTokenizer st = new StringTokenizer(getArguments(), ",");
Collection result = new ArrayList();
while (st.hasMoreTokens()) {
String argument = st.nextToken();
StringTokenizer argumentSt = new StringTokenizer(argument);
String type = argumentSt.nextToken().trim();
String name = argumentSt.nextToken().trim();
MetaProperty p = new MetaProperty();
p.setName(name);
p.setTypeName(type);
result.add(p);
}
return result;
}
public boolean isCollection() {
return collection;
}
public String getCondition() {
return condition;
}
public String getName() {
return name;
}
public void setArguments(String arguments) {
this.arguments = arguments;
}
public void setCollection(boolean collection) {
this.collection = collection;
}
public void setCondition(String condition) {
this.condition = condition;
}
public void setName(String name) {
this.name = name;
}
public boolean isSupportedForEJB2() throws XavaException {
return !hasSome3LevelProperty(getCondition()) && !hasSome3LevelProperty(getOrder());
}
private boolean hasSome3LevelProperty(String sentence) throws XavaException {
if (sentence == null) return false;
int i = sentence.indexOf("${");
int f = 0;
while (i >= 0) {
f = sentence.indexOf("}", i + 2);
if (f < 0) break;
String property = sentence.substring(i + 2, f);
StringTokenizer st = new StringTokenizer(property, ".");
if (st.countTokens() > 3) {
log.warn(XavaResources.getString("property_3_level_in_ejb2_finder", property, getName()));
return true;
}
if (st.countTokens() == 3) {
if (!getMetaModel().getMetaProperty(property).isKey()) {
log.warn(XavaResources.getString("property_3_level_in_ejb2_finder", property, getName()));
return true;
}
}
i = sentence.indexOf("${", i + 1);
}
return false;
}
public String getEJBQLCondition() throws XavaException {
StringBuffer sb = new StringBuffer("SELECT OBJECT(o) FROM ");
sb.append(getMetaModel().getName());
sb.append(" o");
if (!Is.emptyString(this.condition)) {
sb.append(" WHERE ");
String attributesCondition =
getMetaModel().getMapping().changePropertiesByCMPAttributes(this.condition);
sb.append(Strings.change(attributesCondition, getArgumentsJBoss11ToEJBQL()));
}
if (!Is.emptyString(this.order)) {
sb.append(" ORDER BY ");
sb.append(getMetaModel().getMapping().changePropertiesByCMPAttributes(this.order));
}
return sb.toString();
}
public String getHQLCondition() throws XavaException {
return getHQLCondition(true);
}
private String getHQLCondition(boolean order) throws XavaException {
StringBuffer sb = new StringBuffer("from ");
sb.append(getMetaModel().getName());
sb.append(" as o");
if (!Is.emptyString(this.condition)) {
sb.append(" where ");
String condition = transformAggregateProperties(getCondition());
condition = Strings.change(condition, getArgumentsToHQL());
sb.append(Strings.change(condition, getTokensToChangeDollarsAndNL()));
}
if (order && !Is.emptyString(this.order)) {
sb.append(" order by ");
sb.append(
Strings.change(
transformAggregateProperties(this.order), getTokensToChangeDollarsAndNL()));
}
return sb.toString();
}
/**
* Transforms ${address.street} in ${address_street} if address if an aggregate of container
* model.
*
* @param condition
* @return
*/
private String transformAggregateProperties(String condition) {
int i = condition.indexOf("${");
if (i < 0) return condition;
StringBuffer result = new StringBuffer(condition.substring(0, i + 2));
while (i >= 0) {
int f = condition.indexOf("}", i);
String property = condition.substring(i + 2, f);
String transformedProperty = transformAgregateProperty(property);
result.append(transformedProperty);
i = condition.indexOf("${", f);
if (i >= 0) result.append(condition.substring(f, i));
else result.append(condition.substring(f));
}
return result.toString();
}
private String transformAgregateProperty(String property) {
StringBuffer result = new StringBuffer();
StringTokenizer st = new StringTokenizer(property, ".");
String member = "";
while (st.hasMoreTokens()) {
String token = st.nextToken();
result.append(token);
if (!st.hasMoreTokens()) break;
member = member + token;
try {
MetaReference ref = getMetaModel().getMetaReference(member);
if (ref.isAggregate()) result.append('_');
else result.append('.');
} catch (XavaException ex) {
result.append('.');
}
member = member + ".";
}
return result.toString();
}
public String getHQLCountSentence() throws XavaException {
StringBuffer sb = new StringBuffer("select count(*) ");
sb.append(getHQLCondition(false));
return sb.toString();
}
public MetaModel getMetaModel() {
return metaModel;
}
public void setMetaModel(MetaModel metaModel) {
this.metaModel = metaModel;
}
public String getOrder() {
return order;
}
public void setOrder(String order) {
this.order = order;
}
private static Map getArgumentsJBoss11ToEJBQL() {
if (argumentsJBoss11ToEJBQL == null) {
argumentsJBoss11ToEJBQL = new HashMap();
for (int i = 0; i < 30; i++) {
argumentsJBoss11ToEJBQL.put("{" + i + "}", "?" + (i + 1));
}
}
return argumentsJBoss11ToEJBQL;
}
private static Map getArgumentsToHQL() {
if (argumentsToHQL == null) {
argumentsToHQL = new HashMap();
for (int i = 0; i < 30; i++) {
argumentsToHQL.put("{" + i + "}", ":arg" + i);
}
}
return argumentsToHQL;
}
static Map getTokensToChangeDollarsAndNL() {
if (tokensToChangeDollarsAndNL == null) {
tokensToChangeDollarsAndNL = new HashMap();
tokensToChangeDollarsAndNL.put("${", "o.");
tokensToChangeDollarsAndNL.put("}", "");
tokensToChangeDollarsAndNL.put("\n", "");
}
return tokensToChangeDollarsAndNL;
}
public boolean equals(Object other) {
if (!(other instanceof MetaFinder)) return false;
return toString().equals(other.toString());
}
public int hashCode() {
return toString().hashCode();
}
public String toString() {
return "Finder: " + getMetaModel().getName() + "." + getName();
}
}
/**
* Distribute application-specific large, read-only files efficiently.
*
* <p><code>DistributedCache</code> is a facility provided by the Map-Reduce framework to cache
* files (text, archives, jars etc.) needed by applications.
*
* <p>Applications specify the files, via urls (hdfs:// or http://) to be cached via the {@link
* org.apache.hadoop.mapred.JobConf}. The <code>DistributedCache</code> assumes that the files
* specified via hdfs:// urls are already present on the {@link FileSystem} at the path specified by
* the url.
*
* <p>The framework will copy the necessary files on to the slave node before any tasks for the job
* are executed on that node. Its efficiency stems from the fact that the files are only copied once
* per job and the ability to cache archives which are un-archived on the slaves.
*
* <p><code>DistributedCache</code> can be used to distribute simple, read-only data/text files
* and/or more complex types such as archives, jars etc. Archives (zip, tar and tgz/tar.gz files)
* are un-archived at the slave nodes. Jars may be optionally added to the classpath of the tasks, a
* rudimentary software distribution mechanism. Files have execution permissions. Optionally users
* can also direct it to symlink the distributed cache file(s) into the working directory of the
* task.
*
* <p><code>DistributedCache</code> tracks modification timestamps of the cache files. Clearly the
* cache files should not be modified by the application or externally while the job is executing.
*
* <p>Here is an illustrative example on how to use the <code>DistributedCache</code>:
*
* <p>
*
* <blockquote>
*
* <pre>
* // Setting up the cache for the application
*
* 1. Copy the requisite files to the <code>FileSystem</code>:
*
* $ bin/hadoop fs -copyFromLocal lookup.dat /myapp/lookup.dat
* $ bin/hadoop fs -copyFromLocal map.zip /myapp/map.zip
* $ bin/hadoop fs -copyFromLocal mylib.jar /myapp/mylib.jar
* $ bin/hadoop fs -copyFromLocal mytar.tar /myapp/mytar.tar
* $ bin/hadoop fs -copyFromLocal mytgz.tgz /myapp/mytgz.tgz
* $ bin/hadoop fs -copyFromLocal mytargz.tar.gz /myapp/mytargz.tar.gz
*
* 2. Setup the application's <code>JobConf</code>:
*
* JobConf job = new JobConf();
* DistributedCache.addCacheFile(new URI("/myapp/lookup.dat#lookup.dat"),
* job);
* DistributedCache.addCacheArchive(new URI("/myapp/map.zip", job);
* DistributedCache.addFileToClassPath(new Path("/myapp/mylib.jar"), job);
* DistributedCache.addCacheArchive(new URI("/myapp/mytar.tar", job);
* DistributedCache.addCacheArchive(new URI("/myapp/mytgz.tgz", job);
* DistributedCache.addCacheArchive(new URI("/myapp/mytargz.tar.gz", job);
*
* 3. Use the cached files in the {@link org.apache.hadoop.mapred.Mapper}
* or {@link org.apache.hadoop.mapred.Reducer}:
*
* public static class MapClass extends MapReduceBase
* implements Mapper<K, V, K, V> {
*
* private Path[] localArchives;
* private Path[] localFiles;
*
* public void configure(JobConf job) {
* // Get the cached archives/files
* localArchives = DistributedCache.getLocalCacheArchives(job);
* localFiles = DistributedCache.getLocalCacheFiles(job);
* }
*
* public void map(K key, V value,
* OutputCollector<K, V> output, Reporter reporter)
* throws IOException {
* // Use data from the cached archives/files here
* // ...
* // ...
* output.collect(k, v);
* }
* }
*
* </pre>
*
* </blockquote>
*
* @see org.apache.hadoop.mapred.JobConf
* @see org.apache.hadoop.mapred.JobClient
*/
public class DistributedCache {
// cacheID to cacheStatus mapping
private static TreeMap<String, CacheStatus> cachedArchives = new TreeMap<String, CacheStatus>();
private static TreeMap<Path, Long> baseDirSize = new TreeMap<Path, Long>();
private static TreeMap<Path, Integer> baseDirNumberSubDir = new TreeMap<Path, Integer>();
// default total cache size
private static final long DEFAULT_CACHE_SIZE = 10737418240L;
private static final long DEFAULT_CACHE_SUBDIR_LIMIT = 10000;
private static final Log LOG = LogFactory.getLog(DistributedCache.class);
private static Random random = new Random();
/**
* Get the locally cached file or archive; it could either be previously cached (and valid) or
* copy it from the {@link FileSystem} now.
*
* @param cache the cache to be localized, this should be specified as new
* URI(hdfs://hostname:port/absolute_path_to_file#LINKNAME). If no schema or hostname:port is
* provided the file is assumed to be in the filesystem being used in the Configuration
* @param conf The Confguration file which contains the filesystem
* @param baseDir The base cache Dir where you wnat to localize the files/archives
* @param fileStatus The file status on the dfs.
* @param isArchive if the cache is an archive or a file. In case it is an archive with a .zip or
* .jar or .tar or .tgz or .tar.gz extension it will be unzipped/unjarred/untarred
* automatically and the directory where the archive is unzipped/unjarred/untarred is returned
* as the Path. In case of a file, the path to the file is returned
* @param confFileStamp this is the hdfs file modification timestamp to verify that the file to be
* cached hasn't changed since the job started
* @param currentWorkDir this is the directory where you would want to create symlinks for the
* locally cached files/archives
* @return the path to directory where the archives are unjarred in case of archives, the path to
* the file where the file is copied locally
* @throws IOException
*/
public static Path getLocalCache(
URI cache,
Configuration conf,
Path baseDir,
FileStatus fileStatus,
boolean isArchive,
long confFileStamp,
Path currentWorkDir,
MRAsyncDiskService asyncDiskService)
throws IOException {
return getLocalCache(
cache,
conf,
baseDir,
fileStatus,
isArchive,
confFileStamp,
fileStatus.getLen(),
currentWorkDir,
true,
asyncDiskService,
new LocalDirAllocator("mapred.local.dir"));
}
public static Path getLocalCacheFromTimestamps(
URI cache,
Configuration conf,
Path subDir,
FileStatus fileStatus,
boolean isArchive,
long confFileStamp,
long fileLength,
Path currentWorkDir,
boolean honorSymLinkConf,
MRAsyncDiskService asyncDiskService,
LocalDirAllocator lDirAllocator)
throws IOException {
return getLocalCache(
cache,
conf,
subDir,
fileStatus,
isArchive,
confFileStamp,
fileLength,
currentWorkDir,
honorSymLinkConf,
asyncDiskService,
lDirAllocator);
}
public static Path getLocalCacheFromURI(
URI cache,
Configuration conf,
Path subDir,
boolean isArchive,
long fileLength,
Path currentWorkDir,
boolean honorSymLinkConf,
MRAsyncDiskService asyncDiskService,
LocalDirAllocator lDirAllocator)
throws IOException {
return getLocalCache(
cache,
conf,
subDir,
null,
isArchive,
0,
fileLength,
currentWorkDir,
honorSymLinkConf,
asyncDiskService,
lDirAllocator);
}
/** Added for back compatibility. */
public static Path getLocalCache(
URI cache,
Configuration conf,
Path subdir,
FileStatus fileStatus,
boolean isArchive,
long confFileStamp,
Path currentWorkDir,
boolean honorSymLinkConf,
MRAsyncDiskService asyncDiskService,
LocalDirAllocator lDirAllocator)
throws IOException {
return getLocalCache(
cache,
conf,
subdir,
fileStatus,
isArchive,
confFileStamp,
fileStatus.getLen(),
currentWorkDir,
honorSymLinkConf,
asyncDiskService,
lDirAllocator);
}
/**
* Get the locally cached file or archive; it could either be previously cached (and valid) or
* copy it from the {@link FileSystem} now.
*
* @param cache the cache to be localized, this should be specified as new
* URI(hdfs://hostname:port/absolute_path_to_file#LINKNAME). If no schema or hostname:port is
* provided the file is assumed to be in the filesystem being used in the Configuration
* @param conf The Confguration file which contains the filesystem
* @param subDir The sub cache Dir where you want to localize the files/archives
* @param fileStatus The file status on the dfs.
* @param isArchive if the cache is an archive or a file. In case it is an archive with a .zip or
* .jar or .tar or .tgz or .tar.gz extension it will be unzipped/unjarred/untarred
* automatically and the directory where the archive is unzipped/unjarred/untarred is returned
* as the Path. In case of a file, the path to the file is returned
* @param confFileStamp this is the hdfs file modification timestamp to verify that the file to be
* cached hasn't changed since the job started
* @param fileLength this is the length of the cache file
* @param currentWorkDir this is the directory where you would want to create symlinks for the
* locally cached files/archives
* @param honorSymLinkConf if this is false, then the symlinks are not created even if conf says
* so (this is required for an optimization in task launches
* @param lDirAllocator LocalDirAllocator of the tracker
* @return the path to directory where the archives are unjarred in case of archives, the path to
* the file where the file is copied locally
* @throws IOException
*/
private static Path getLocalCache(
URI cache,
Configuration conf,
Path subDir,
FileStatus fileStatus,
boolean isArchive,
long confFileStamp,
long fileLength,
Path currentWorkDir,
boolean honorSymLinkConf,
MRAsyncDiskService asyncDiskService,
LocalDirAllocator lDirAllocator)
throws IOException {
String key = getKey(cache, conf, confFileStamp);
CacheStatus lcacheStatus;
Path localizedPath;
synchronized (cachedArchives) {
lcacheStatus = cachedArchives.get(key);
if (lcacheStatus == null) {
// was never localized
Path uniqueParentDir = new Path(subDir, String.valueOf(random.nextLong()));
String cachePath = new Path(uniqueParentDir, makeRelative(cache, conf)).toString();
Path localPath = lDirAllocator.getLocalPathForWrite(cachePath, fileLength, conf);
lcacheStatus =
new CacheStatus(
new Path(localPath.toString().replace(cachePath, "")), localPath, uniqueParentDir);
cachedArchives.put(key, lcacheStatus);
}
lcacheStatus.refcount++;
}
boolean initSuccessful = false;
try {
synchronized (lcacheStatus) {
if (!lcacheStatus.isInited()) {
localizedPath = localizeCache(conf, cache, confFileStamp, lcacheStatus, isArchive);
lcacheStatus.initComplete();
} else {
if (fileStatus != null) {
localizedPath =
checkCacheStatusValidity(
conf, cache, confFileStamp, lcacheStatus, fileStatus, isArchive);
} else {
// if fileStatus is null, then the md5 must be correct
// so there is no need to check for cache validity
localizedPath = lcacheStatus.localizedLoadPath;
}
}
createSymlink(conf, cache, lcacheStatus, isArchive, currentWorkDir, honorSymLinkConf);
}
// try deleting stuff if you can
long size = 0;
int numberSubDir = 0;
synchronized (lcacheStatus) {
synchronized (baseDirSize) {
Long get = baseDirSize.get(lcacheStatus.getBaseDir());
if (get != null) {
size = get.longValue();
} else {
LOG.warn("Cannot find size of baseDir: " + lcacheStatus.getBaseDir());
}
}
synchronized (baseDirNumberSubDir) {
Integer get = baseDirNumberSubDir.get(lcacheStatus.getBaseDir());
if (get != null) {
numberSubDir = get.intValue();
} else {
LOG.warn("Cannot find subdirectories limit of baseDir: " + lcacheStatus.getBaseDir());
}
}
}
// setting the cache size to a default of 10GB
long allowedSize = conf.getLong("local.cache.size", DEFAULT_CACHE_SIZE);
long allowedNumberSubDir =
conf.getLong("local.cache.numbersubdir", DEFAULT_CACHE_SUBDIR_LIMIT);
if (allowedSize < size || allowedNumberSubDir < numberSubDir) {
// try some cache deletions
LOG.debug(
"Start deleting released cache because"
+ " [size, allowedSize, numberSubDir, allowedNumberSubDir] ="
+ " ["
+ size
+ ", "
+ allowedSize
+ ", "
+ numberSubDir
+ ", "
+ allowedNumberSubDir
+ "]");
deleteCache(conf, asyncDiskService);
}
initSuccessful = true;
return localizedPath;
} finally {
if (!initSuccessful) {
synchronized (cachedArchives) {
lcacheStatus.refcount--;
}
}
}
}
/**
* Get the locally cached file or archive; it could either be previously cached (and valid) or
* copy it from the {@link FileSystem} now.
*
* @param cache the cache to be localized, this should be specified as new
* URI(hdfs://hostname:port/absolute_path_to_file#LINKNAME). If no schema or hostname:port is
* provided the file is assumed to be in the filesystem being used in the Configuration
* @param conf The Confguration file which contains the filesystem
* @param baseDir The base cache Dir where you wnat to localize the files/archives
* @param isArchive if the cache is an archive or a file. In case it is an archive with a .zip or
* .jar or .tar or .tgz or .tar.gz extension it will be unzipped/unjarred/untarred
* automatically and the directory where the archive is unzipped/unjarred/untarred is returned
* as the Path. In case of a file, the path to the file is returned
* @param confFileStamp this is the hdfs file modification timestamp to verify that the file to be
* cached hasn't changed since the job started
* @param currentWorkDir this is the directory where you would want to create symlinks for the
* locally cached files/archives
* @return the path to directory where the archives are unjarred in case of archives, the path to
* the file where the file is copied locally
* @throws IOException
*/
public static Path getLocalCache(
URI cache,
Configuration conf,
Path baseDir,
boolean isArchive,
long confFileStamp,
Path currentWorkDir,
MRAsyncDiskService asyncDiskService)
throws IOException {
return getLocalCache(
cache, conf, baseDir, null, isArchive, confFileStamp, currentWorkDir, asyncDiskService);
}
/**
* This is the opposite of getlocalcache. When you are done with using the cache, you need to
* release the cache
*
* @param cache The cache URI to be released
* @param conf configuration which contains the filesystem the cache is contained in.
* @throws IOException
*/
public static void releaseCache(URI cache, Configuration conf, long timeStamp)
throws IOException {
String cacheId = getKey(cache, conf, timeStamp);
synchronized (cachedArchives) {
CacheStatus lcacheStatus = cachedArchives.get(cacheId);
if (lcacheStatus == null) {
LOG.warn(
"Cannot find localized cache: " + cache + " (key: " + cacheId + ") in releaseCache!");
return;
}
lcacheStatus.refcount--;
}
}
/** Runnable which removes the cache directories from the disk */
private static class CacheFileCleanTask implements Runnable {
private MRAsyncDiskService asyncDiskService;
private LocalFileSystem fs;
private List<CacheStatus> toBeDeletedCache;
public CacheFileCleanTask(
MRAsyncDiskService asyncDiskService,
LocalFileSystem fs,
List<CacheStatus> toBeDeletedCache) {
this.asyncDiskService = asyncDiskService;
this.fs = fs;
this.toBeDeletedCache = toBeDeletedCache;
}
@Override
public void run() {
for (CacheStatus lcacheStatus : toBeDeletedCache) {
synchronized (lcacheStatus) {
Path fullUniqueParentDir =
new Path(lcacheStatus.localizedBaseDir, lcacheStatus.uniqueParentDir);
try {
LOG.info("Deleting local cached path: " + fullUniqueParentDir.toString());
deleteLocalPath(asyncDiskService, fs, fullUniqueParentDir);
// decrement the size of the cache from baseDirSize
deleteCacheInfoUpdate(lcacheStatus);
LOG.info("Removed cache " + lcacheStatus.localizedLoadPath);
} catch (IOException e) {
LOG.warn("Error when deleting " + fullUniqueParentDir, e);
}
}
}
}
}
// To delete the caches which have a refcount of zero
private static void deleteCache(Configuration conf, MRAsyncDiskService asyncDiskService)
throws IOException {
List<CacheStatus> deleteSet = new LinkedList<CacheStatus>();
// try deleting cache Status with refcount of zero
synchronized (cachedArchives) {
for (Iterator<String> it = cachedArchives.keySet().iterator(); it.hasNext(); ) {
String cacheId = (String) it.next();
CacheStatus lcacheStatus = cachedArchives.get(cacheId);
if (lcacheStatus.refcount == 0) {
// delete this cache entry from the global list
// and mark the localized file for deletion
deleteSet.add(lcacheStatus);
it.remove();
}
}
}
// do the deletion asynchronously, after releasing the global lock
Thread cacheFileCleaner =
new Thread(new CacheFileCleanTask(asyncDiskService, FileSystem.getLocal(conf), deleteSet));
cacheFileCleaner.start();
}
/**
* Delete a local path with asyncDiskService if available, or otherwise synchronously with local
* file system.
*/
private static void deleteLocalPath(
MRAsyncDiskService asyncDiskService, LocalFileSystem fs, Path path) throws IOException {
boolean deleted = false;
if (asyncDiskService != null) {
// Try to delete using asyncDiskService
String localPathToDelete = path.toUri().getPath();
deleted = asyncDiskService.moveAndDeleteAbsolutePath(localPathToDelete);
if (!deleted) {
LOG.warn(
"Cannot find DistributedCache path "
+ localPathToDelete
+ " on any of the asyncDiskService volumes!");
}
}
if (!deleted) {
// If no asyncDiskService, we will delete the files synchronously
fs.delete(path, true);
}
LOG.info("Deleted path " + path);
}
/*
* Returns the relative path of the dir this cache will be localized in
* relative path that this cache will be localized in. For
* hdfs://hostname:port/absolute_path -- the relative path is
* hostname/absolute path -- if it is just /absolute_path -- then the
* relative path is hostname of DFS this mapred cluster is running
* on/absolute_path
*/
public static String makeRelative(URI cache, Configuration conf) throws IOException {
String host = cache.getHost();
if (host == null) {
host = cache.getScheme();
}
if (host == null) {
URI defaultUri = FileSystem.get(conf).getUri();
host = defaultUri.getHost();
if (host == null) {
host = defaultUri.getScheme();
}
}
String path = host + cache.getPath();
path = path.replace(":/", "/"); // remove windows device colon
return path;
}
static String getKey(URI cache, Configuration conf, long timeStamp) throws IOException {
return makeRelative(cache, conf) + String.valueOf(timeStamp);
}
private static Path checkCacheStatusValidity(
Configuration conf,
URI cache,
long confFileStamp,
CacheStatus cacheStatus,
FileStatus fileStatus,
boolean isArchive)
throws IOException {
FileSystem fs = FileSystem.get(cache, conf);
// Has to be
if (!ifExistsAndFresh(conf, fs, cache, confFileStamp, cacheStatus, fileStatus)) {
throw new IOException(
"Stale cache file: " + cacheStatus.localizedLoadPath + " for cache-file: " + cache);
}
LOG.info(
String.format(
"Using existing cache of %s->%s", cache.toString(), cacheStatus.localizedLoadPath));
return cacheStatus.localizedLoadPath;
}
private static void createSymlink(
Configuration conf,
URI cache,
CacheStatus cacheStatus,
boolean isArchive,
Path currentWorkDir,
boolean honorSymLinkConf)
throws IOException {
boolean doSymlink = honorSymLinkConf && DistributedCache.getSymlink(conf);
if (cache.getFragment() == null) {
doSymlink = false;
}
String link = currentWorkDir.toString() + Path.SEPARATOR + cache.getFragment();
File flink = new File(link);
if (doSymlink) {
if (!flink.exists()) {
FileUtil.symLink(cacheStatus.localizedLoadPath.toString(), link);
}
}
}
// the method which actually copies the caches locally and unjars/unzips them
// and does chmod for the files
private static Path localizeCache(
Configuration conf, URI cache, long confFileStamp, CacheStatus cacheStatus, boolean isArchive)
throws IOException {
FileSystem fs = getFileSystem(cache, conf);
FileSystem localFs = FileSystem.getLocal(conf);
Path parchive = null;
if (isArchive) {
parchive =
new Path(
cacheStatus.localizedLoadPath, new Path(cacheStatus.localizedLoadPath.getName()));
} else {
parchive = cacheStatus.localizedLoadPath;
}
if (!localFs.mkdirs(parchive.getParent())) {
throw new IOException(
"Mkdirs failed to create directory " + cacheStatus.localizedLoadPath.toString());
}
String cacheId = cache.getPath();
fs.copyToLocalFile(new Path(cacheId), parchive);
if (isArchive) {
String tmpArchive = parchive.toString().toLowerCase();
File srcFile = new File(parchive.toString());
File destDir = new File(parchive.getParent().toString());
if (tmpArchive.endsWith(".jar")) {
RunJar.unJar(srcFile, destDir);
} else if (tmpArchive.endsWith(".zip")) {
FileUtil.unZip(srcFile, destDir);
} else if (isTarFile(tmpArchive)) {
FileUtil.unTar(srcFile, destDir);
}
// else will not do anyhting
// and copy the file into the dir as it is
}
long cacheSize = FileUtil.getDU(new File(parchive.getParent().toString()));
cacheStatus.size = cacheSize;
addCacheInfoUpdate(cacheStatus);
// do chmod here
try {
// Setting recursive permission to grant everyone read and execute
Path localDir = new Path(cacheStatus.localizedBaseDir, cacheStatus.uniqueParentDir);
LOG.info("Doing chmod on localdir :" + localDir);
FileUtil.chmod(localDir.toString(), "ugo+rx", true);
} catch (InterruptedException e) {
LOG.warn("Exception in chmod" + e.toString());
}
// update cacheStatus to reflect the newly cached file
cacheStatus.mtime = getTimestamp(conf, cache);
return cacheStatus.localizedLoadPath;
}
private static boolean isTarFile(String filename) {
return (filename.endsWith(".tgz") || filename.endsWith(".tar.gz") || filename.endsWith(".tar"));
}
// Checks if the cache has already been localized and is fresh
private static boolean ifExistsAndFresh(
Configuration conf,
FileSystem fs,
URI cache,
long confFileStamp,
CacheStatus lcacheStatus,
FileStatus fileStatus)
throws IOException {
// check for existence of the cache
long dfsFileStamp;
if (fileStatus != null) {
dfsFileStamp = fileStatus.getModificationTime();
} else {
dfsFileStamp = getTimestamp(conf, cache);
}
// ensure that the file on hdfs hasn't been modified since the job started
if (dfsFileStamp != confFileStamp) {
LOG.fatal("File: " + cache + " has changed on HDFS since job started");
throw new IOException("File: " + cache + " has changed on HDFS since job started");
}
if (dfsFileStamp != lcacheStatus.mtime) {
// needs refreshing
return false;
}
return true;
}
/**
* Returns mtime of a given cache file on hdfs.
*
* @param conf configuration
* @param cache cache file
* @return mtime of a given cache file on hdfs
* @throws IOException
*/
public static long getTimestamp(Configuration conf, URI cache) throws IOException {
FileSystem fileSystem = FileSystem.get(cache, conf);
Path filePath = new Path(cache.getPath());
return fileSystem.getFileStatus(filePath).getModificationTime();
}
/**
* Returns the status of a given cache file on hdfs.
*
* @param conf configuration
* @param cache cache file
* @return FileStatus object of the file
* @throws IOException
*/
public static FileStatus getFileStatus(Configuration conf, URI cache) throws IOException {
FileSystem fileSystem = FileSystem.get(cache, conf);
Path filePath = new Path(cache.getPath());
return fileSystem.getFileStatus(filePath);
}
/**
* This method create symlinks for all files in a given dir in another directory
*
* @param conf the configuration
* @param jobCacheDir the target directory for creating symlinks
* @param workDir the directory in which the symlinks are created
* @throws IOException
*/
public static void createAllSymlink(Configuration conf, File jobCacheDir, File workDir)
throws IOException {
if ((jobCacheDir == null || !jobCacheDir.isDirectory())
|| workDir == null
|| (!workDir.isDirectory())) {
return;
}
boolean createSymlink = getSymlink(conf);
if (createSymlink) {
File[] list = jobCacheDir.listFiles();
for (int i = 0; i < list.length; i++) {
FileUtil.symLink(
list[i].getAbsolutePath(), new File(workDir, list[i].getName()).toString());
}
}
}
private static String getFileSysName(URI url) {
String fsname = url.getScheme();
if ("hdfs".equals(fsname)) {
String host = url.getHost();
int port = url.getPort();
return (port == (-1)) ? host : (host + ":" + port);
} else {
return null;
}
}
private static FileSystem getFileSystem(URI cache, Configuration conf) throws IOException {
String fileSysName = getFileSysName(cache);
if (fileSysName != null) return FileSystem.getNamed(fileSysName, conf);
else return FileSystem.get(conf);
}
/**
* Set the configuration with the given set of archives
*
* @param archives The list of archives that need to be localized
* @param conf Configuration which will be changed
*/
public static void setCacheArchives(URI[] archives, Configuration conf) {
String sarchives = StringUtils.uriToString(archives);
conf.set("mapred.cache.archives", sarchives);
}
/**
* Set the configuration with the given set of files
*
* @param files The list of files that need to be localized
* @param conf Configuration which will be changed
*/
public static void setCacheFiles(URI[] files, Configuration conf) {
String sfiles = StringUtils.uriToString(files);
conf.set("mapred.cache.files", sfiles);
}
/**
* Get cache archives set in the Configuration
*
* @param conf The configuration which contains the archives
* @return A URI array of the caches set in the Configuration
* @throws IOException
*/
public static URI[] getCacheArchives(Configuration conf) throws IOException {
return StringUtils.stringToURI(conf.getStrings("mapred.cache.archives"));
}
/**
* Get cache archives set in the Configuration
*
* @param conf The configuration which contains the archives
* @return A URI array of the caches set in the Configuration
* @throws IOException
*/
public static URI[] getSharedCacheArchives(Configuration conf) throws IOException {
return StringUtils.stringToURI(conf.getStrings("mapred.cache.shared.archives"));
}
/**
* Get cache files set in the Configuration
*
* @param conf The configuration which contains the files
* @return A URI array of the files set in the Configuration
* @throws IOException
*/
public static URI[] getCacheFiles(Configuration conf) throws IOException {
return StringUtils.stringToURI(conf.getStrings("mapred.cache.files"));
}
/**
* Get cache files set in the Configuration
*
* @param conf The configuration which contains the files
* @return A URI array of the files set in the Configuration
* @throws IOException
*/
public static URI[] getSharedCacheFiles(Configuration conf) throws IOException {
return StringUtils.stringToURI(conf.getStrings("mapred.cache.shared.files"));
}
/**
* Return the path array of the localized caches
*
* @param conf Configuration that contains the localized archives
* @return A path array of localized caches
* @throws IOException
*/
public static Path[] getLocalCacheArchives(Configuration conf) throws IOException {
return StringUtils.stringToPath(conf.getStrings("mapred.cache.localArchives"));
}
/**
* Return the path array of the localized caches
*
* @param conf Configuration that contains the localized archives
* @return A path array of localized caches
* @throws IOException
*/
public static Path[] getLocalSharedCacheArchives(Configuration conf) throws IOException {
return StringUtils.stringToPath(conf.getStrings("mapred.cache.shared.localArchives"));
}
/**
* Return the path array of the localized files
*
* @param conf Configuration that contains the localized files
* @return A path array of localized files
* @throws IOException
*/
public static Path[] getLocalCacheFiles(Configuration conf) throws IOException {
return StringUtils.stringToPath(conf.getStrings("mapred.cache.localFiles"));
}
/**
* Return the path array of the localized files
*
* @param conf Configuration that contains the localized files
* @return A path array of localized files
* @throws IOException
*/
public static Path[] getLocalSharedCacheFiles(Configuration conf) throws IOException {
return StringUtils.stringToPath(conf.getStrings("mapred.cache.shared.localFiles"));
}
/**
* Get the timestamps of the archives
*
* @param conf The configuration which stored the timestamps
* @return a string array of timestamps
* @throws IOException
*/
public static String[] getArchiveTimestamps(Configuration conf) {
return conf.getStrings("mapred.cache.archives.timestamps");
}
/**
* Get the timestamps of the files
*
* @param conf The configuration which stored the timestamps
* @return a string array of timestamps
* @throws IOException
*/
public static String[] getFileTimestamps(Configuration conf) {
return conf.getStrings("mapred.cache.files.timestamps");
}
public static String[] getSharedArchiveLength(Configuration conf) {
return conf.getStrings("mapred.cache.shared.archives.length");
}
public static String[] getSharedFileLength(Configuration conf) {
return conf.getStrings("mapred.cache.shared.files.length");
}
/**
* This is to check the timestamp of the archives to be localized
*
* @param conf Configuration which stores the timestamp's
* @param timestamps comma separated list of timestamps of archives. The order should be the same
* as the order in which the archives are added.
*/
public static void setArchiveTimestamps(Configuration conf, String timestamps) {
conf.set("mapred.cache.archives.timestamps", timestamps);
}
public static void setSharedArchiveLength(Configuration conf, String length) {
conf.set("mapred.cache.shared.archives.length", length);
}
/**
* This is to check the timestamp of the files to be localized
*
* @param conf Configuration which stores the timestamp's
* @param timestamps comma separated list of timestamps of files. The order should be the same as
* the order in which the files are added.
*/
public static void setFileTimestamps(Configuration conf, String timestamps) {
conf.set("mapred.cache.files.timestamps", timestamps);
}
public static void setSharedFileLength(Configuration conf, String length) {
conf.set("mapred.cache.shared.files.length", length);
}
/**
* Set the conf to contain the location for localized archives
*
* @param conf The conf to modify to contain the localized caches
* @param str a comma separated list of local archives
*/
public static void setLocalArchives(Configuration conf, String str) {
conf.set("mapred.cache.localArchives", str);
}
/**
* Set the conf to contain the location for localized archives
*
* @param conf The conf to modify to contain the localized caches
* @param str a comma separated list of local archives
*/
public static void setLocalSharedArchives(Configuration conf, String str) {
conf.set("mapred.cache.shared.localArchives", str);
}
/**
* Set the conf to contain the location for localized files
*
* @param conf The conf to modify to contain the localized caches
* @param str a comma separated list of local files
*/
public static void setLocalFiles(Configuration conf, String str) {
conf.set("mapred.cache.localFiles", str);
}
/**
* Set the conf to contain the location for localized files
*
* @param conf The conf to modify to contain the localized caches
* @param str a comma separated list of local files
*/
public static void setLocalSharedFiles(Configuration conf, String str) {
conf.set("mapred.cache.shared.localFiles", str);
}
/**
* Add a archives to be localized to the conf
*
* @param uri The uri of the cache to be localized
* @param conf Configuration to add the cache to
*/
public static void addCacheArchive(URI uri, Configuration conf) {
String archives = conf.get("mapred.cache.archives");
conf.set(
"mapred.cache.archives",
archives == null ? uri.toString() : archives + "," + uri.toString());
}
/**
* Add a archives to be localized to the conf
*
* @param uri The uri of the cache to be localized
* @param conf Configuration to add the cache to
*/
public static void addSharedCacheArchive(URI uri, Configuration conf) {
String archives = conf.get("mapred.cache.shared.archives");
conf.set(
"mapred.cache.shared.archives",
archives == null ? uri.toString() : archives + "," + uri.toString());
}
/**
* Add a file to be localized to the conf
*
* @param uri The uri of the cache to be localized
* @param conf Configuration to add the cache to
*/
public static void addCacheFile(URI uri, Configuration conf) {
String files = conf.get("mapred.cache.files");
conf.set("mapred.cache.files", files == null ? uri.toString() : files + "," + uri.toString());
}
/**
* Add a file to be localized to the conf
*
* @param uri The uri of the cache to be localized
* @param conf Configuration to add the cache to
*/
public static void addSharedCacheFile(URI uri, Configuration conf) {
String files = conf.get("mapred.cache.shared.files");
conf.set(
"mapred.cache.shared.files", files == null ? uri.toString() : files + "," + uri.toString());
}
/**
* Add an file path to the current set of classpath entries It adds the file to cache as well.
*
* @param file Path of the file to be added
* @param conf Configuration that contains the classpath setting
*/
public static void addFileToClassPath(Path file, Configuration conf) throws IOException {
String classpath = conf.get("mapred.job.classpath.files");
conf.set(
"mapred.job.classpath.files",
classpath == null
? file.toString()
: classpath + System.getProperty("path.separator") + file.toString());
URI uri = file.makeQualified(file.getFileSystem(conf)).toUri();
addCacheFile(uri, conf);
}
/**
* Get the file entries in classpath as an array of Path
*
* @param conf Configuration that contains the classpath setting
*/
public static Path[] getFileClassPaths(Configuration conf) {
String classpath = conf.get("mapred.job.classpath.files");
if (classpath == null) return null;
ArrayList list =
Collections.list(new StringTokenizer(classpath, System.getProperty("path.separator")));
Path[] paths = new Path[list.size()];
for (int i = 0; i < list.size(); i++) {
paths[i] = new Path((String) list.get(i));
}
return paths;
}
private static URI addArchiveToClassPathHelper(Path archive, Configuration conf)
throws IOException {
String classpath = conf.get("mapred.job.classpath.archives");
// the scheme/authority use ':' as separator. put the unqualified path in classpath
String archivePath = archive.toUri().getPath();
conf.set(
"mapred.job.classpath.archives",
classpath == null
? archivePath
: classpath + System.getProperty("path.separator") + archivePath);
return archive.makeQualified(archive.getFileSystem(conf)).toUri();
}
/**
* Add an archive path to the current set of classpath entries. It adds the archive to cache as
* well.
*
* @param archive Path of the archive to be added
* @param conf Configuration that contains the classpath setting
*/
public static void addArchiveToClassPath(Path archive, Configuration conf) throws IOException {
URI uri = addArchiveToClassPathHelper(archive, conf);
addCacheArchive(uri, conf);
}
/**
* Add an archive path to the current set of classpath entries. It adds the archive to cache as
* well.
*
* @param archive Path of the archive to be added
* @param conf Configuration that contains the classpath setting
*/
public static void addSharedArchiveToClassPath(Path archive, Configuration conf)
throws IOException {
URI uri = addArchiveToClassPathHelper(archive, conf);
addSharedCacheArchive(uri, conf);
}
/**
* Get the archive entries in classpath as an array of Path
*
* @param conf Configuration that contains the classpath setting
*/
public static Path[] getArchiveClassPaths(Configuration conf) {
String classpath = conf.get("mapred.job.classpath.archives");
if (classpath == null) return null;
ArrayList list =
Collections.list(new StringTokenizer(classpath, System.getProperty("path.separator")));
Path[] paths = new Path[list.size()];
for (int i = 0; i < list.size(); i++) {
paths[i] = new Path((String) list.get(i));
}
return paths;
}
/**
* This method allows you to create symlinks in the current working directory of the task to all
* the cache files/archives
*
* @param conf the jobconf
*/
public static void createSymlink(Configuration conf) {
conf.set("mapred.create.symlink", "yes");
}
/**
* This method checks to see if symlinks are to be create for the localized cache files in the
* current working directory
*
* @param conf the jobconf
* @return true if symlinks are to be created- else return false
*/
public static boolean getSymlink(Configuration conf) {
String result = conf.get("mapred.create.symlink");
if ("yes".equals(result)) {
return true;
}
return false;
}
/**
* This method checks if there is a conflict in the fragment names of the uris. Also makes sure
* that each uri has a fragment. It is only to be called if you want to create symlinks for the
* various archives and files.
*
* @param uriFiles The uri array of urifiles
* @param uriArchives the uri array of uri archives
*/
public static boolean checkURIs(URI[] uriFiles, URI[] uriArchives) {
if ((uriFiles == null) && (uriArchives == null)) {
return true;
}
if (uriFiles != null) {
for (int i = 0; i < uriFiles.length; i++) {
String frag1 = uriFiles[i].getFragment();
if (frag1 == null) return false;
for (int j = i + 1; j < uriFiles.length; j++) {
String frag2 = uriFiles[j].getFragment();
if (frag2 == null) return false;
if (frag1.equalsIgnoreCase(frag2)) return false;
}
if (uriArchives != null) {
for (int j = 0; j < uriArchives.length; j++) {
String frag2 = uriArchives[j].getFragment();
if (frag2 == null) {
return false;
}
if (frag1.equalsIgnoreCase(frag2)) return false;
for (int k = j + 1; k < uriArchives.length; k++) {
String frag3 = uriArchives[k].getFragment();
if (frag3 == null) return false;
if (frag2.equalsIgnoreCase(frag3)) return false;
}
}
}
}
}
return true;
}
private static class CacheStatus {
// the local load path of this cache
Path localizedLoadPath;
// the base dir where the cache lies
Path localizedBaseDir;
// the unique directory in localizedBaseDir, where the cache lies
Path uniqueParentDir;
// the size of this cache
long size;
// number of instances using this cache
int refcount;
// the cache-file modification time
long mtime;
// is it initialized
boolean inited = false;
public CacheStatus(Path baseDir, Path localLoadPath, Path uniqueParentDir) {
super();
this.localizedLoadPath = localLoadPath;
this.refcount = 0;
this.mtime = -1;
this.localizedBaseDir = baseDir;
this.size = 0;
this.uniqueParentDir = uniqueParentDir;
}
// get the base dir for the cache
Path getBaseDir() {
return localizedBaseDir;
}
// Is it initialized?
boolean isInited() {
return inited;
}
// mark it as initalized
void initComplete() {
inited = true;
}
}
/**
* Clear the entire contents of the cache and delete the backing files. This should only be used
* when the server is reinitializing, because the users are going to lose their files.
*/
public static void purgeCache(Configuration conf, MRAsyncDiskService service) throws IOException {
synchronized (cachedArchives) {
LocalFileSystem localFs = FileSystem.getLocal(conf);
for (Map.Entry<String, CacheStatus> f : cachedArchives.entrySet()) {
try {
deleteLocalPath(service, localFs, f.getValue().localizedLoadPath);
} catch (IOException ie) {
LOG.debug("Error cleaning up cache", ie);
}
}
cachedArchives.clear();
}
}
/**
* Update the maps baseDirSize and baseDirNumberSubDir when deleting cache.
*
* @param cacheStatus cache status of the cache is deleted
*/
private static void deleteCacheInfoUpdate(CacheStatus cacheStatus) {
if (!cacheStatus.isInited()) {
// if it is not created yet, do nothing.
return;
}
synchronized (baseDirSize) {
Long dirSize = baseDirSize.get(cacheStatus.getBaseDir());
if (dirSize != null) {
dirSize -= cacheStatus.size;
baseDirSize.put(cacheStatus.getBaseDir(), dirSize);
}
}
synchronized (baseDirNumberSubDir) {
Integer dirSubDir = baseDirNumberSubDir.get(cacheStatus.getBaseDir());
if (dirSubDir != null) {
dirSubDir--;
baseDirNumberSubDir.put(cacheStatus.getBaseDir(), dirSubDir);
}
}
}
/**
* Update the maps baseDirSize and baseDirNumberSubDir when adding cache.
*
* @param cacheStatus cache status of the cache is added
*/
private static void addCacheInfoUpdate(CacheStatus cacheStatus) {
long cacheSize = cacheStatus.size;
synchronized (baseDirSize) {
Long dirSize = baseDirSize.get(cacheStatus.getBaseDir());
if (dirSize == null) {
dirSize = Long.valueOf(cacheSize);
} else {
dirSize += cacheSize;
}
baseDirSize.put(cacheStatus.getBaseDir(), dirSize);
}
synchronized (baseDirNumberSubDir) {
Integer dirSubDir = baseDirNumberSubDir.get(cacheStatus.getBaseDir());
if (dirSubDir == null) {
dirSubDir = 1;
} else {
dirSubDir += 1;
}
baseDirNumberSubDir.put(cacheStatus.getBaseDir(), dirSubDir);
}
}
}
/**
* Shared functionality for hadoopStreaming formats. A custom reader can be defined to be a
* RecordReader with the constructor below and is selected with the option bin/hadoopStreaming
* -inputreader ...
*
* @see StreamXmlRecordReader
*/
public abstract class StreamBaseRecordReader implements RecordReader<Text, Text> {
protected static final Log LOG = LogFactory.getLog(StreamBaseRecordReader.class.getName());
// custom JobConf properties for this class are prefixed with this namespace
static final String CONF_NS = "stream.recordreader.";
public StreamBaseRecordReader(
FSDataInputStream in, FileSplit split, Reporter reporter, JobConf job, FileSystem fs)
throws IOException {
in_ = in;
split_ = split;
start_ = split_.getStart();
length_ = split_.getLength();
end_ = start_ + length_;
splitName_ = split_.getPath().getName();
reporter_ = reporter;
job_ = job;
fs_ = fs;
statusMaxRecordChars_ = job_.getInt(CONF_NS + "statuschars", 200);
}
/// RecordReader API
/** Read a record. Implementation should call numRecStats at the end */
public abstract boolean next(Text key, Text value) throws IOException;
/** This implementation always returns true. */
public void validateInput(JobConf job) throws IOException {}
/** Returns the current position in the input. */
public synchronized long getPos() throws IOException {
return in_.getPos();
}
/** Close this to future operations. */
public synchronized void close() throws IOException {
in_.close();
}
public float getProgress() throws IOException {
if (end_ == start_) {
return 1.0f;
} else {
return ((float) (in_.getPos() - start_)) / ((float) (end_ - start_));
}
}
public Text createKey() {
return new Text();
}
public Text createValue() {
return new Text();
}
/// StreamBaseRecordReader API
/**
* Implementation should seek forward in_ to the first byte of the next record. The initial byte
* offset in the stream is arbitrary.
*/
public abstract void seekNextRecordBoundary() throws IOException;
void numRecStats(byte[] record, int start, int len) throws IOException {
numRec_++;
if (numRec_ == nextStatusRec_) {
String recordStr = new String(record, start, Math.min(len, statusMaxRecordChars_), "UTF-8");
nextStatusRec_ += 100; // *= 10;
String status = getStatus(recordStr);
LOG.info(status);
reporter_.setStatus(status);
}
}
long lastMem = 0;
String getStatus(CharSequence record) {
long pos = -1;
try {
pos = getPos();
} catch (IOException io) {
}
String recStr;
if (record.length() > statusMaxRecordChars_) {
recStr = record.subSequence(0, statusMaxRecordChars_) + "...";
} else {
recStr = record.toString();
}
String unqualSplit =
split_.getPath().getName() + ":" + split_.getStart() + "+" + split_.getLength();
String status =
"HSTR "
+ StreamUtil.HOST
+ " "
+ numRec_
+ ". pos="
+ pos
+ " "
+ unqualSplit
+ " Processing record="
+ recStr;
status += " " + splitName_;
return status;
}
FSDataInputStream in_;
FileSplit split_;
long start_;
long end_;
long length_;
String splitName_;
Reporter reporter_;
JobConf job_;
FileSystem fs_;
int numRec_ = 0;
int nextStatusRec_ = 1;
int statusMaxRecordChars_;
}
public class MilterRequestHandler implements RequestHandler, JilterHandler, StopBlockTarget {
protected static Log logger = LogFactory.getLog(MilterRequestHandler.class.getName());
protected SocketChannel socket = null;
protected ArrayList<String> rcpts = null;
protected FetchMessageCallback callback;
protected String host = "";
protected JilterStatus status = null;
protected ByteArrayOutputStream bos = new ByteArrayOutputStream();
protected static Pattern headerPattern1 = Pattern.compile("^cc|^to|^bcc");
protected static Pattern headerPattern2 = Pattern.compile(".*<([-.+_\\d\\w]*@[-.+_\\d\\w]*)>");
protected static Pattern headerPattern3 = Pattern.compile("([-.+_\\d\\w]*@[-.+_\\d\\w]*)");
private static final int IDLE_TIMEOUT = 300000; // 5 minutes
protected boolean includeBCC = false;
public void handleRequest(SocketChannel socket, FetchMessageCallback callback) {
this.socket = socket;
this.callback = callback;
includeBCC = false;
rcpts = new ArrayList<String>();
bos = new ByteArrayOutputStream();
InetAddress address = socket.socket().getInetAddress();
boolean isAllowed = Config.getConfig().getAgent().isAllowed(address);
if (!isAllowed) {
logger.debug(
"attempted milter connection from disallowed address. force disconnect {address='"
+ address.getHostAddress()
+ "'}");
try {
socket.close();
} catch (IOException io) {
logger.error("failed to close milter socket.", io);
}
return;
}
ByteBuffer dataBuffer = ByteBuffer.allocateDirect(4096);
JilterProcessor processor = new JilterProcessor(this);
try {
while (processor.process(socket, (ByteBuffer) dataBuffer.flip())) {
dataBuffer.compact();
if (this.socket.read(dataBuffer) == -1) {
logger.debug("socket reports EOF, exiting read loop");
break;
}
}
} catch (IOException e) {
logger.debug("Unexpected exception, connection will be closed", e);
} finally {
logger.debug("closing processor");
processor.close();
logger.debug("processor closed");
try {
logger.debug("closing socket");
this.socket.close();
logger.debug("socket closed");
} catch (IOException e) {
logger.debug("Unexpected exception", e);
}
}
}
public JilterStatus abort() {
logger.debug("abort");
return JilterStatus.SMFIS_CONTINUE;
}
public JilterStatus body(ByteBuffer bodyp) {
logger.debug("jilter body()");
long maxMessageSizeMB = Config.getConfig().getArchiver().getMaxMessageSize();
long maxMessageSizeBytes = maxMessageSizeMB * 1024 * 1024;
if (bodyp.array().length > maxMessageSizeBytes) {
logger.warn(
"milter maximum message size exceeded { size='" + bodyp.array().length + " bytes'}");
return JilterStatus.SMFIS_REJECT;
}
try {
bos.write("\n".getBytes());
bos.write(bodyp.array());
} catch (IOException io) {
logger.error("jilter failed to write milter body data to byte buffer", io);
}
logger.debug("jilter body written");
return JilterStatus.SMFIS_CONTINUE;
}
public JilterStatus close() {
logger.debug("jilter close()");
return JilterStatus.SMFIS_CONTINUE;
}
public JilterStatus connect(String hostname, InetAddress hostaddr, Properties properties) {
rcpts = new ArrayList<String>();
if (hostaddr != null) {
host = hostaddr.toString();
} else if (host != null) {
host = hostname;
} else {
host = "localhost";
}
logger.debug("jilter connect() {from='" + hostname + "',host='" + host + "'}");
return JilterStatus.SMFIS_CONTINUE;
}
public JilterStatus envfrom(String[] argv, Properties properties) {
for (int i = 0; i < argv.length; i++) {
logger.debug("jilter envfrom() {from='" + argv[i] + "'}");
}
return JilterStatus.SMFIS_CONTINUE;
}
public JilterStatus envrcpt(String[] argv, Properties properties) {
for (int i = 0; i < argv.length; i++) {
String strRecipient = argv[i];
boolean orcptFlag = strRecipient.toLowerCase(Locale.ENGLISH).trim().contains("orcpt=");
if (!orcptFlag) {
logger.debug("jilter envrcpt() {to='" + strRecipient + "'}");
String recipient =
strRecipient.toLowerCase(Locale.ENGLISH).trim().replaceAll("<", "").replaceAll(">", "");
rcpts.add(recipient);
logger.debug("jilter add recipient {recipient='" + recipient + "'}");
}
}
return JilterStatus.SMFIS_CONTINUE;
}
protected boolean shouldIgnoreBCCAddress(String address) {
MilterServerService milterService = Config.getConfig().getMilterServerService();
List<String> ignoreAddresses = milterService.getIgnoreBCCAddress();
Matcher m = headerPattern2.matcher(address.toLowerCase(Locale.ENGLISH).trim());
if (m.matches()) {
String mailAddress = m.group(1);
for (String ignoreAddress : ignoreAddresses) {
if (ignoreAddress.equalsIgnoreCase(mailAddress)) return true;
}
} else {
m = headerPattern3.matcher(address.toLowerCase(Locale.ENGLISH).trim());
if (m.matches()) {
String mailAddress = m.group(1);
for (String ignoreAddress : ignoreAddresses) {
if (ignoreAddress.equalsIgnoreCase(mailAddress)) return true;
}
}
}
return false;
}
public JilterStatus eoh() {
logger.debug("jilter eoh()");
// includeBCC is false if RCPT TO does not contain at least one field in TO, FROM and CC
// this is a safety check as sometimes, RCPT TO is something differently entirely
// and does not contain the actual recipients in the email
MilterServerService milterService = Config.getConfig().getMilterServerService();
if (milterService.getIncludeBCC() && includeBCC) {
logger.debug("including BCC addresses");
// check to see if address is flagged to ignore
if (rcpts.size() > 0) {
Iterator<String> i = rcpts.iterator();
while (i.hasNext()) {
String rcpt = i.next();
if (shouldIgnoreBCCAddress(rcpt)) {
logger.debug("ignore include bcc address {address='" + rcpt + "'}");
i.remove();
}
}
}
if (rcpts.size() > 0) {
try {
for (int j = 0; j < rcpts.size(); j++) {
if (j == 0) {
bos.write("bcc: ".getBytes());
} else {
bos.write(",".getBytes());
}
bos.write(rcpts.get(j).getBytes());
}
bos.write("\n".getBytes());
} catch (IOException io) {
logger.error("jilter failed to write end of header data", io);
}
}
}
return JilterStatus.SMFIS_CONTINUE;
}
public JilterStatus eom(JilterEOMActions eomActions, Properties properties) {
logger.debug("jilter eom()");
try {
bos.close(); // close stream
} catch (IOException io) {
logger.error("jilter failed to close io stream during eom", io);
}
byte[] messageBytes = bos.toByteArray();
bos = new ByteArrayOutputStream();
ByteArrayInputStream bis = new ByteArrayInputStream(messageBytes);
try {
logger.debug("jilter store callback execute");
Config.getStopBlockFactory()
.detectBlock("milter server", Thread.currentThread(), this, IDLE_TIMEOUT);
callback.store(bis, host);
logger.debug("jilter store callback finished");
} catch (ArchiveException e) {
logger.error("failed to store the message via milter", e);
if (e.getRecoveryDirective() == ArchiveException.RecoveryDirective.REJECT) {
logger.debug("jilter reject");
return JilterStatus.SMFIS_REJECT;
} else if (e.getRecoveryDirective() == ArchiveException.RecoveryDirective.RETRYLATER) {
logger.debug("jilter temp fail");
return JilterStatus.SMFIS_TEMPFAIL;
}
} catch (Throwable oome) {
logger.error("failed to store message:" + oome.getMessage(), oome);
return JilterStatus.SMFIS_REJECT;
} finally {
Config.getStopBlockFactory().endDetectBlock(Thread.currentThread());
}
return JilterStatus.SMFIS_CONTINUE;
}
public int getRequiredModifications() {
logger.debug("jilter requiredmodifications()");
return SMFIF_NONE;
}
public int getSupportedProcesses() {
logger.debug("jilter getsupportedprocesses()");
return PROCESS_CONNECT | PROCESS_ENVRCPT | PROCESS_HEADER | PROCESS_BODY;
}
public JilterStatus header(String headerf, String headerv) {
logger.debug("jilter header {name='" + headerf + "',value='" + headerv + "'}");
StringBuffer header = new StringBuffer();
header.append(headerf);
header.append(": ");
header.append(headerv);
header.append("\n");
try {
bos.write(header.toString().getBytes());
} catch (IOException io) {
logger.error("jilter failed to write header field", io);
}
Matcher m = headerPattern1.matcher(headerf.toLowerCase(Locale.ENGLISH).trim());
if (m.matches()) {
logger.debug("jilter found to/bcc/cc header");
String[] addresses = headerv.split(",");
for (int i = 0; i < addresses.length; i++) {
includeBCC = includeBCC | rcpts.remove(addresses[i].toLowerCase(Locale.ENGLISH).trim());
logger.debug("jilter del recipient {recipient='" + addresses[i] + "'}");
m = headerPattern2.matcher(addresses[i].toLowerCase(Locale.ENGLISH).trim());
if (m.matches()) {
String mailAddress = m.group(1);
includeBCC = includeBCC | rcpts.remove(mailAddress);
logger.debug("jilter del recipient {recipient='" + mailAddress + "'}");
} else {
m = headerPattern3.matcher(addresses[i].toLowerCase(Locale.ENGLISH).trim());
if (m.matches()) {
String mailAddress = m.group(1);
includeBCC = includeBCC | rcpts.remove(mailAddress);
logger.debug("jilter del recipient {recipient='" + mailAddress + "'}");
}
}
}
}
return JilterStatus.SMFIS_CONTINUE;
}
public JilterStatus helo(String helohost, Properties properties) {
logger.debug("jilter helo() " + helohost);
return JilterStatus.SMFIS_CONTINUE;
}
public void handleBlock(Thread thread) {
try {
if (socket != null) {
logger.debug("close socket()");
socket.close();
}
} catch (Exception e) {
// ignored
}
synchronized (this) {
if (thread != null) {
logger.debug("interrupt thread()");
thread.interrupt();
}
}
}
}
private static class AllocatorPerContext {
private final Log LOG = LogFactory.getLog(AllocatorPerContext.class);
private int dirNumLastAccessed;
private Random dirIndexRandomizer = new Random();
private FileSystem localFS;
private DF[] dirDF;
private String contextCfgItemName;
private Path[] localDirsPath;
private String savedLocalDirs = "";
public AllocatorPerContext(String contextCfgItemName) {
this.contextCfgItemName = contextCfgItemName;
}
/**
* This method gets called everytime before any read/write to make sure that any change to
* localDirs is reflected immediately.
*/
private synchronized void confChanged(Configuration conf) throws IOException {
String newLocalDirs = conf.get(contextCfgItemName);
if (!newLocalDirs.equals(savedLocalDirs)) {
String[] localDirs = conf.getStrings(contextCfgItemName);
localFS = FileSystem.getLocal(conf);
int numDirs = localDirs.length;
ArrayList<String> dirs = new ArrayList<String>(numDirs);
ArrayList<DF> dfList = new ArrayList<DF>(numDirs);
for (int i = 0; i < numDirs; i++) {
try {
// filter problematic directories
Path tmpDir = new Path(localDirs[i]);
if (localFS.mkdirs(tmpDir) || localFS.exists(tmpDir)) {
try {
DiskChecker.checkDir(new File(localDirs[i]));
dirs.add(localDirs[i]);
dfList.add(new DF(new File(localDirs[i]), 30000));
} catch (DiskErrorException de) {
LOG.warn(localDirs[i] + "is not writable\n" + StringUtils.stringifyException(de));
}
} else {
LOG.warn("Failed to create " + localDirs[i]);
}
} catch (IOException ie) {
LOG.warn(
"Failed to create "
+ localDirs[i]
+ ": "
+ ie.getMessage()
+ "\n"
+ StringUtils.stringifyException(ie));
} // ignore
}
localDirsPath = new Path[dirs.size()];
for (int i = 0; i < localDirsPath.length; i++) {
localDirsPath[i] = new Path(dirs.get(i));
}
dirDF = dfList.toArray(new DF[dirs.size()]);
savedLocalDirs = newLocalDirs;
// randomize the first disk picked in the round-robin selection
dirNumLastAccessed = dirIndexRandomizer.nextInt(dirs.size());
}
}
private Path createPath(Path path, boolean checkWrite) throws IOException {
Path file = new Path(localDirsPath[dirNumLastAccessed], path);
if (checkWrite) {
// check whether we are able to create a directory here. If the disk
// happens to be RDONLY we will fail
try {
DiskChecker.checkDir(new File(file.getParent().toUri().getPath()));
} catch (DiskErrorException d) {
LOG.warn(StringUtils.stringifyException(d));
return null;
}
}
return file;
}
/**
* Get the current directory index.
*
* @return the current directory index.
*/
int getCurrentDirectoryIndex() {
return dirNumLastAccessed;
}
/**
* Get a path from the local FS. If size is known, we go round-robin over the set of disks (via
* the configured dirs) and return the first complete path which has enough space.
*
* <p>If size is not known, use roulette selection -- pick directories with probability
* proportional to their available space.
*/
public synchronized Path getLocalPathForWrite(
String pathStr, long size, Configuration conf, boolean checkWrite) throws IOException {
confChanged(conf);
int numDirs = localDirsPath.length;
int numDirsSearched = 0;
// remove the leading slash from the path (to make sure that the uri
// resolution results in a valid path on the dir being checked)
if (pathStr.startsWith("/")) {
pathStr = pathStr.substring(1);
}
Path returnPath = null;
Path path = new Path(pathStr);
if (size == SIZE_UNKNOWN) { // do roulette selection: pick dir with probability
// proportional to available size
long[] availableOnDisk = new long[dirDF.length];
long totalAvailable = 0;
// build the "roulette wheel"
for (int i = 0; i < dirDF.length; ++i) {
availableOnDisk[i] = dirDF[i].getAvailable();
totalAvailable += availableOnDisk[i];
}
// Keep rolling the wheel till we get a valid path
Random r = new java.util.Random();
while (numDirsSearched < numDirs && returnPath == null) {
long randomPosition = Math.abs(r.nextLong()) % totalAvailable;
int dir = 0;
while (randomPosition > availableOnDisk[dir]) {
randomPosition -= availableOnDisk[dir];
dir++;
}
dirNumLastAccessed = dir;
returnPath = createPath(path, checkWrite);
if (returnPath == null) {
totalAvailable -= availableOnDisk[dir];
availableOnDisk[dir] = 0; // skip this disk
numDirsSearched++;
}
}
} else {
while (numDirsSearched < numDirs && returnPath == null) {
long capacity = dirDF[dirNumLastAccessed].getAvailable();
if (capacity > size) {
returnPath = createPath(path, checkWrite);
}
dirNumLastAccessed++;
dirNumLastAccessed = dirNumLastAccessed % numDirs;
numDirsSearched++;
}
}
if (returnPath != null) {
return returnPath;
}
// no path found
throw new DiskErrorException("Could not find any valid local " + "directory for " + pathStr);
}
/**
* Creates a file on the local FS. Pass size as {@link LocalDirAllocator.SIZE_UNKNOWN} if not
* known apriori. We round-robin over the set of disks (via the configured dirs) and return a
* file on the first path which has enough space. The file is guaranteed to go away when the JVM
* exits.
*/
public File createTmpFileForWrite(String pathStr, long size, Configuration conf)
throws IOException {
// find an appropriate directory
Path path = getLocalPathForWrite(pathStr, size, conf, true);
File dir = new File(path.getParent().toUri().getPath());
String prefix = path.getName();
// create a temp file on this directory
File result = File.createTempFile(prefix, null, dir);
result.deleteOnExit();
return result;
}
/**
* Get a path from the local FS for reading. We search through all the configured dirs for the
* file's existence and return the complete path to the file when we find one
*/
public synchronized Path getLocalPathToRead(String pathStr, Configuration conf)
throws IOException {
confChanged(conf);
int numDirs = localDirsPath.length;
int numDirsSearched = 0;
// remove the leading slash from the path (to make sure that the uri
// resolution results in a valid path on the dir being checked)
if (pathStr.startsWith("/")) {
pathStr = pathStr.substring(1);
}
Path childPath = new Path(pathStr);
while (numDirsSearched < numDirs) {
Path file = new Path(localDirsPath[numDirsSearched], childPath);
if (localFS.exists(file)) {
return file;
}
numDirsSearched++;
}
// no path found
throw new DiskErrorException(
"Could not find " + pathStr + " in any of" + " the configured local directories");
}
private static class PathIterator implements Iterator<Path>, Iterable<Path> {
private final FileSystem fs;
private final String pathStr;
private int i = 0;
private final Path[] rootDirs;
private Path next = null;
private PathIterator(FileSystem fs, String pathStr, Path[] rootDirs) throws IOException {
this.fs = fs;
this.pathStr = pathStr;
this.rootDirs = rootDirs;
advance();
}
@Override
public boolean hasNext() {
return next != null;
}
private void advance() throws IOException {
while (i < rootDirs.length) {
next = new Path(rootDirs[i++], pathStr);
if (fs.exists(next)) {
return;
}
}
next = null;
}
@Override
public Path next() {
Path result = next;
try {
advance();
} catch (IOException ie) {
throw new RuntimeException("Can't check existance of " + next, ie);
}
return result;
}
@Override
public void remove() {
throw new UnsupportedOperationException("read only iterator");
}
@Override
public Iterator<Path> iterator() {
return this;
}
}
/**
* Get all of the paths that currently exist in the working directories.
*
* @param pathStr the path underneath the roots
* @param conf the configuration to look up the roots in
* @return all of the paths that exist under any of the roots
* @throws IOException
*/
synchronized Iterable<Path> getAllLocalPathsToRead(String pathStr, Configuration conf)
throws IOException {
confChanged(conf);
if (pathStr.startsWith("/")) {
pathStr = pathStr.substring(1);
}
return new PathIterator(localFS, pathStr, localDirsPath);
}
/**
* We search through all the configured dirs for the file's existence and return true when we
* find one
*/
public synchronized boolean ifExists(String pathStr, Configuration conf) {
try {
int numDirs = localDirsPath.length;
int numDirsSearched = 0;
// remove the leading slash from the path (to make sure that the uri
// resolution results in a valid path on the dir being checked)
if (pathStr.startsWith("/")) {
pathStr = pathStr.substring(1);
}
Path childPath = new Path(pathStr);
while (numDirsSearched < numDirs) {
Path file = new Path(localDirsPath[numDirsSearched], childPath);
if (localFS.exists(file)) {
return true;
}
numDirsSearched++;
}
} catch (IOException e) {
// IGNORE and try again
}
return false;
}
}
/**
* To generate automatically reports from list mode.
*
* <p>Uses JasperReports.
*
* @author Javier Paniza
*/
public class GenerateReportServlet extends HttpServlet {
private static Log log = LogFactory.getLog(GenerateReportServlet.class);
public static class TableModelDecorator implements TableModel {
private TableModel original;
private List metaProperties;
private boolean withValidValues = false;
private Locale locale;
private boolean labelAsHeader = false;
private HttpServletRequest request;
private boolean format =
false; // format or no the values. If format = true, all values to the report are String
private Integer columnCountLimit;
public TableModelDecorator(
HttpServletRequest request,
TableModel original,
List metaProperties,
Locale locale,
boolean labelAsHeader,
boolean format,
Integer columnCountLimit)
throws Exception {
this.request = request;
this.original = original;
this.metaProperties = metaProperties;
this.locale = locale;
this.withValidValues = calculateWithValidValues();
this.labelAsHeader = labelAsHeader;
this.format = format;
this.columnCountLimit = columnCountLimit;
}
private boolean calculateWithValidValues() {
Iterator it = metaProperties.iterator();
while (it.hasNext()) {
MetaProperty m = (MetaProperty) it.next();
if (m.hasValidValues()) return true;
}
return false;
}
private MetaProperty getMetaProperty(int i) {
return (MetaProperty) metaProperties.get(i);
}
public int getRowCount() {
return original.getRowCount();
}
public int getColumnCount() {
return columnCountLimit == null ? original.getColumnCount() : columnCountLimit;
}
public String getColumnName(int c) {
return labelAsHeader
? getMetaProperty(c).getLabel(locale)
: Strings.change(getMetaProperty(c).getQualifiedName(), ".", "_");
}
public Class getColumnClass(int c) {
return original.getColumnClass(c);
}
public boolean isCellEditable(int row, int column) {
return original.isCellEditable(row, column);
}
public Object getValueAt(int row, int column) {
if (isFormat()) return getValueWithWebEditorsFormat(row, column);
else return getValueWithoutWebEditorsFormat(row, column);
}
private Object getValueWithoutWebEditorsFormat(int row, int column) {
Object r = original.getValueAt(row, column);
if (r instanceof Boolean) {
if (((Boolean) r).booleanValue()) return XavaResources.getString(locale, "yes");
return XavaResources.getString(locale, "no");
}
if (withValidValues) {
MetaProperty p = getMetaProperty(column);
if (p.hasValidValues()) {
return p.getValidValueLabel(locale, original.getValueAt(row, column));
}
}
if (r instanceof java.util.Date) {
MetaProperty p =
getMetaProperty(column); // In order to use the type declared by the developer
// and not the one returned by JDBC or the JPA engine
if (java.sql.Time.class.isAssignableFrom(p.getType())) {
return DateFormat.getTimeInstance(DateFormat.SHORT, locale).format(r);
}
if (java.sql.Timestamp.class.isAssignableFrom(p.getType())) {
DateFormat dateFormat = new SimpleDateFormat("dd/MM/yyyy HH:mm:ss");
return dateFormat.format(r);
}
return DateFormat.getDateInstance(DateFormat.SHORT, locale).format(r);
}
if (r instanceof BigDecimal) {
return formatBigDecimal(r, locale);
}
return r;
}
private Object getValueWithWebEditorsFormat(int row, int column) {
Object r = original.getValueAt(row, column);
MetaProperty metaProperty = getMetaProperty(column);
String result = WebEditors.format(this.request, metaProperty, r, null, "", true);
if (isHtml(result)) { // this avoids that the report shows html content
result = WebEditors.format(this.request, metaProperty, r, null, "", false);
}
return result;
}
public void setValueAt(Object value, int row, int column) {
original.setValueAt(value, row, column);
}
public void addTableModelListener(TableModelListener l) {
original.addTableModelListener(l);
}
public void removeTableModelListener(TableModelListener l) {
original.removeTableModelListener(l);
}
private boolean isHtml(String value) {
return value.matches("<.*>");
}
public boolean isFormat() {
return format;
}
public void setFormat(boolean format) {
this.format = format;
}
}
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
try {
Locales.setCurrent(request);
if (Users.getCurrent() == null) { // for a bug in websphere portal 5.1 with Domino LDAP
Users.setCurrent((String) request.getSession().getAttribute("xava.user"));
}
request.getParameter("application"); // for a bug in websphere 5.1
request.getParameter("module"); // for a bug in websphere 5.1
Tab tab = (Tab) request.getSession().getAttribute("xava_reportTab");
int[] selectedRowsNumber =
(int[]) request.getSession().getAttribute("xava_selectedRowsReportTab");
Map[] selectedKeys = (Map[]) request.getSession().getAttribute("xava_selectedKeysReportTab");
int[] selectedRows = getSelectedRows(selectedRowsNumber, selectedKeys, tab);
request.getSession().removeAttribute("xava_selectedRowsReportTab");
Integer columnCountLimit =
(Integer) request.getSession().getAttribute("xava_columnCountLimitReportTab");
request.getSession().removeAttribute("xava_columnCountLimitReportTab");
setDefaultSchema(request);
String user = (String) request.getSession().getAttribute("xava_user");
request.getSession().removeAttribute("xava_user");
Users.setCurrent(user);
String uri = request.getRequestURI();
if (uri.endsWith(".pdf")) {
InputStream is;
JRDataSource ds;
Map parameters = new HashMap();
synchronized (tab) {
tab.setRequest(request);
parameters.put("Title", tab.getTitle());
parameters.put("Organization", getOrganization());
parameters.put("Date", getCurrentDate());
for (String totalProperty : tab.getTotalPropertiesNames()) {
parameters.put(totalProperty + "__TOTAL__", getTotal(request, tab, totalProperty));
}
TableModel tableModel = getTableModel(request, tab, selectedRows, false, true, null);
tableModel.getValueAt(0, 0);
if (tableModel.getRowCount() == 0) {
generateNoRowsPage(response);
return;
}
is = getReport(request, response, tab, tableModel, columnCountLimit);
ds = new JRTableModelDataSource(tableModel);
}
JasperPrint jprint = JasperFillManager.fillReport(is, parameters, ds);
response.setContentType("application/pdf");
response.setHeader(
"Content-Disposition", "inline; filename=\"" + getFileName(tab) + ".pdf\"");
JasperExportManager.exportReportToPdfStream(jprint, response.getOutputStream());
} else if (uri.endsWith(".csv")) {
String csvEncoding = XavaPreferences.getInstance().getCSVEncoding();
if (!Is.emptyString(csvEncoding)) {
response.setCharacterEncoding(csvEncoding);
}
response.setContentType("text/x-csv");
response.setHeader(
"Content-Disposition", "inline; filename=\"" + getFileName(tab) + ".csv\"");
synchronized (tab) {
tab.setRequest(request);
response
.getWriter()
.print(
TableModels.toCSV(
getTableModel(request, tab, selectedRows, true, false, columnCountLimit)));
}
} else {
throw new ServletException(
XavaResources.getString("report_type_not_supported", "", ".pdf .csv"));
}
} catch (Exception ex) {
log.error(ex.getMessage(), ex);
throw new ServletException(XavaResources.getString("report_error"));
} finally {
request.getSession().removeAttribute("xava_reportTab");
}
}
private void generateNoRowsPage(HttpServletResponse response) throws Exception {
response.setContentType("text/html");
response.getWriter().println("<html><head><title>");
response.getWriter().println(XavaResources.getString("no_rows_report_message_title"));
response
.getWriter()
.println(
"</title></head><body style='font-family:Tahoma,Arial,sans-serif;color:black;background-color:white;'>");
response.getWriter().println("<h1 style='font-size:22px;'>");
response.getWriter().println(XavaResources.getString("no_rows_report_message_title"));
response.getWriter().println("</h1>");
response.getWriter().println("<p style='font-size:16px;'>");
response.getWriter().println(XavaResources.getString("no_rows_report_message_detail"));
response.getWriter().println("</p></body></html>");
}
private String getCurrentDate() {
return java.text.DateFormat.getDateInstance(DateFormat.MEDIUM, Locales.getCurrent())
.format(new java.util.Date());
}
private String getFileName(Tab tab) {
String now = new SimpleDateFormat("yyyyMMdd_HHmm").format(new Date());
return tab.getTitle() + " " + now;
}
private Object getTotal(HttpServletRequest request, Tab tab, String totalProperty) {
Object total = tab.getTotal(totalProperty);
return WebEditors.format(
request, tab.getMetaProperty(totalProperty), total, new Messages(), null, true);
}
private void setDefaultSchema(HttpServletRequest request) {
String hibernateDefaultSchemaTab =
(String) request.getSession().getAttribute("xava_hibernateDefaultSchemaTab");
if (hibernateDefaultSchemaTab != null) {
request.getSession().removeAttribute("xava_hibernateDefaultSchemaTab");
XHibernate.setDefaultSchema(hibernateDefaultSchemaTab);
}
String jpaDefaultSchemaTab =
(String) request.getSession().getAttribute("xava_jpaDefaultSchemaTab");
if (jpaDefaultSchemaTab != null) {
request.getSession().removeAttribute("xava_jpaDefaultSchemaTab");
XPersistence.setDefaultSchema(jpaDefaultSchemaTab);
}
}
protected String getOrganization() throws MissingResourceException, XavaException {
return ReportParametersProviderFactory.getInstance().getOrganization();
}
private InputStream getReport(
HttpServletRequest request,
HttpServletResponse response,
Tab tab,
TableModel tableModel,
Integer columnCountLimit)
throws ServletException, IOException {
StringBuffer suri = new StringBuffer();
suri.append("/xava/jasperReport");
suri.append("?language=");
suri.append(Locales.getCurrent().getLanguage());
suri.append("&widths=");
suri.append(Arrays.toString(getWidths(tableModel)));
if (columnCountLimit != null) {
suri.append("&columnCountLimit=");
suri.append(columnCountLimit);
}
response.setCharacterEncoding(XSystem.getEncoding());
return Servlets.getURIAsStream(request, response, suri.toString());
}
private int[] getWidths(TableModel tableModel) {
int[] widths = new int[tableModel.getColumnCount()];
for (int r = 0;
r < Math.min(tableModel.getRowCount(), 500);
r++) { // 500 is not for performance, but for using only a sample of data with huge table
for (int c = 0; c < tableModel.getColumnCount(); c++) {
Object o = tableModel.getValueAt(r, c);
if (o instanceof String) {
String s = ((String) o).trim();
if (s.length() > widths[c]) widths[c] = s.length();
}
}
}
return widths;
}
private TableModel getTableModel(
HttpServletRequest request,
Tab tab,
int[] selectedRows,
boolean labelAsHeader,
boolean format,
Integer columnCountLimit)
throws Exception {
TableModel data = null;
if (selectedRows != null && selectedRows.length > 0) {
data = new SelectedRowsXTableModel(tab.getTableModel(), selectedRows);
} else {
data = tab.getAllDataTableModel();
}
return new TableModelDecorator(
request,
data,
tab.getMetaProperties(),
Locales.getCurrent(),
labelAsHeader,
format,
columnCountLimit);
}
private static Object formatBigDecimal(Object number, Locale locale) {
NumberFormat nf = NumberFormat.getNumberInstance(locale);
nf.setMinimumFractionDigits(2);
return nf.format(number);
}
private int[] getSelectedRows(int[] selectedRowsNumber, Map[] selectedRowsKeys, Tab tab) {
if (selectedRowsKeys == null || selectedRowsKeys.length == 0) return new int[0];
// selectedRowsNumber is the most performant so we use it when possible
else if (selectedRowsNumber.length == selectedRowsKeys.length) return selectedRowsNumber;
else {
// find the rows from the selectedKeys
// This has a poor performance, but it covers the case when the selected
// rows are not loaded for the tab, something that can occurs if the user
// select rows and afterwards reorder the list.
try {
int[] s = new int[selectedRowsKeys.length];
List selectedKeys = Arrays.asList(selectedRowsKeys);
int end = tab.getTableModel().getTotalSize();
int x = 0;
for (int i = 0; i < end; i++) {
Map key = (Map) tab.getTableModel().getObjectAt(i);
if (selectedKeys.contains(key)) {
s[x] = i;
x++;
}
}
return s;
} catch (Exception ex) {
log.warn(XavaResources.getString("fails_selected"), ex);
throw new XavaException("fails_selected");
}
}
}
}
/** An RpcEngine implementation for Writable data. */
@InterfaceStability.Evolving
public class WritableRpcEngine implements RpcEngine {
private static final Log LOG = LogFactory.getLog(RPC.class);
// writableRpcVersion should be updated if there is a change
// in format of the rpc messages.
// 2L - added declared class to Invocation
public static final long writableRpcVersion = 2L;
/** Whether or not this class has been initialized. */
private static boolean isInitialized = false;
static {
ensureInitialized();
}
/** Initialize this class if it isn't already. */
public static synchronized void ensureInitialized() {
if (!isInitialized) {
initialize();
}
}
/** Register the rpcRequest deserializer for WritableRpcEngine */
private static synchronized void initialize() {
org.apache.hadoop.ipc.Server.registerProtocolEngine(
RPC.RpcKind.RPC_WRITABLE, Invocation.class, new Server.WritableRpcInvoker());
isInitialized = true;
}
/** A method invocation, including the method name and its parameters. */
private static class Invocation implements Writable, Configurable {
private String methodName;
private Class<?>[] parameterClasses;
private Object[] parameters;
private Configuration conf;
private long clientVersion;
private int clientMethodsHash;
private String declaringClassProtocolName;
// This could be different from static writableRpcVersion when received
// at server, if client is using a different version.
private long rpcVersion;
@SuppressWarnings("unused") // called when deserializing an invocation
public Invocation() {}
public Invocation(Method method, Object[] parameters) {
this.methodName = method.getName();
this.parameterClasses = method.getParameterTypes();
this.parameters = parameters;
rpcVersion = writableRpcVersion;
if (method.getDeclaringClass().equals(VersionedProtocol.class)) {
// VersionedProtocol is exempted from version check.
clientVersion = 0;
clientMethodsHash = 0;
} else {
this.clientVersion = RPC.getProtocolVersion(method.getDeclaringClass());
this.clientMethodsHash =
ProtocolSignature.getFingerprint(method.getDeclaringClass().getMethods());
}
this.declaringClassProtocolName = RPC.getProtocolName(method.getDeclaringClass());
}
/** The name of the method invoked. */
public String getMethodName() {
return methodName;
}
/** The parameter classes. */
public Class<?>[] getParameterClasses() {
return parameterClasses;
}
/** The parameter instances. */
public Object[] getParameters() {
return parameters;
}
private long getProtocolVersion() {
return clientVersion;
}
@SuppressWarnings("unused")
private int getClientMethodsHash() {
return clientMethodsHash;
}
/**
* Returns the rpc version used by the client.
*
* @return rpcVersion
*/
public long getRpcVersion() {
return rpcVersion;
}
@SuppressWarnings("deprecation")
public void readFields(DataInput in) throws IOException {
rpcVersion = in.readLong();
declaringClassProtocolName = UTF8.readString(in);
methodName = UTF8.readString(in);
clientVersion = in.readLong();
clientMethodsHash = in.readInt();
parameters = new Object[in.readInt()];
parameterClasses = new Class[parameters.length];
ObjectWritable objectWritable = new ObjectWritable();
for (int i = 0; i < parameters.length; i++) {
parameters[i] = ObjectWritable.readObject(in, objectWritable, this.conf);
parameterClasses[i] = objectWritable.getDeclaredClass();
}
}
@SuppressWarnings("deprecation")
public void write(DataOutput out) throws IOException {
out.writeLong(rpcVersion);
UTF8.writeString(out, declaringClassProtocolName);
UTF8.writeString(out, methodName);
out.writeLong(clientVersion);
out.writeInt(clientMethodsHash);
out.writeInt(parameterClasses.length);
for (int i = 0; i < parameterClasses.length; i++) {
ObjectWritable.writeObject(out, parameters[i], parameterClasses[i], conf, true);
}
}
public String toString() {
StringBuilder buffer = new StringBuilder();
buffer.append(methodName);
buffer.append("(");
for (int i = 0; i < parameters.length; i++) {
if (i != 0) buffer.append(", ");
buffer.append(parameters[i]);
}
buffer.append(")");
buffer.append(", rpc version=" + rpcVersion);
buffer.append(", client version=" + clientVersion);
buffer.append(", methodsFingerPrint=" + clientMethodsHash);
return buffer.toString();
}
public void setConf(Configuration conf) {
this.conf = conf;
}
public Configuration getConf() {
return this.conf;
}
}
private static ClientCache CLIENTS = new ClientCache();
private static class Invoker implements RpcInvocationHandler {
private Client.ConnectionId remoteId;
private Client client;
private boolean isClosed = false;
public Invoker(
Class<?> protocol,
InetSocketAddress address,
UserGroupInformation ticket,
Configuration conf,
SocketFactory factory,
int rpcTimeout)
throws IOException {
this.remoteId =
Client.ConnectionId.getConnectionId(address, protocol, ticket, rpcTimeout, conf);
this.client = CLIENTS.getClient(conf, factory);
}
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
long startTime = 0;
if (LOG.isDebugEnabled()) {
startTime = Time.now();
}
ObjectWritable value =
(ObjectWritable)
client.call(RPC.RpcKind.RPC_WRITABLE, new Invocation(method, args), remoteId);
if (LOG.isDebugEnabled()) {
long callTime = Time.now() - startTime;
LOG.debug("Call: " + method.getName() + " " + callTime);
}
return value.get();
}
/* close the IPC client that's responsible for this invoker's RPCs */
public synchronized void close() {
if (!isClosed) {
isClosed = true;
CLIENTS.stopClient(client);
}
}
@Override
public ConnectionId getConnectionId() {
return remoteId;
}
}
// for unit testing only
@InterfaceAudience.Private
@InterfaceStability.Unstable
static Client getClient(Configuration conf) {
return CLIENTS.getClient(conf);
}
/**
* Construct a client-side proxy object that implements the named protocol, talking to a server at
* the named address.
*
* @param <T>
*/
@Override
@SuppressWarnings("unchecked")
public <T> ProtocolProxy<T> getProxy(
Class<T> protocol,
long clientVersion,
InetSocketAddress addr,
UserGroupInformation ticket,
Configuration conf,
SocketFactory factory,
int rpcTimeout,
RetryPolicy connectionRetryPolicy)
throws IOException {
if (connectionRetryPolicy != null) {
throw new UnsupportedOperationException(
"Not supported: connectionRetryPolicy=" + connectionRetryPolicy);
}
T proxy =
(T)
Proxy.newProxyInstance(
protocol.getClassLoader(),
new Class[] {protocol},
new Invoker(protocol, addr, ticket, conf, factory, rpcTimeout));
return new ProtocolProxy<T>(protocol, proxy, true);
}
/* Construct a server for a protocol implementation instance listening on a
* port and address. */
@Override
public RPC.Server getServer(
Class<?> protocolClass,
Object protocolImpl,
String bindAddress,
int port,
int numHandlers,
int numReaders,
int queueSizePerHandler,
boolean verbose,
Configuration conf,
SecretManager<? extends TokenIdentifier> secretManager,
String portRangeConfig)
throws IOException {
return new Server(
protocolClass,
protocolImpl,
conf,
bindAddress,
port,
numHandlers,
numReaders,
queueSizePerHandler,
verbose,
secretManager,
portRangeConfig);
}
/** An RPC Server. */
public static class Server extends RPC.Server {
/**
* Construct an RPC server.
*
* @param instance the instance whose methods will be called
* @param conf the configuration to use
* @param bindAddress the address to bind on to listen for connection
* @param port the port to listen for connections on
* @deprecated Use #Server(Class, Object, Configuration, String, int)
*/
@Deprecated
public Server(Object instance, Configuration conf, String bindAddress, int port)
throws IOException {
this(null, instance, conf, bindAddress, port);
}
/**
* Construct an RPC server.
*
* @param protocolClass class
* @param protocolImpl the instance whose methods will be called
* @param conf the configuration to use
* @param bindAddress the address to bind on to listen for connection
* @param port the port to listen for connections on
*/
public Server(
Class<?> protocolClass,
Object protocolImpl,
Configuration conf,
String bindAddress,
int port)
throws IOException {
this(protocolClass, protocolImpl, conf, bindAddress, port, 1, -1, -1, false, null, null);
}
/**
* Construct an RPC server.
*
* @param protocolImpl the instance whose methods will be called
* @param conf the configuration to use
* @param bindAddress the address to bind on to listen for connection
* @param port the port to listen for connections on
* @param numHandlers the number of method handler threads to run
* @param verbose whether each call should be logged
* @deprecated use Server#Server(Class, Object, Configuration, String, int, int, int, int,
* boolean, SecretManager)
*/
@Deprecated
public Server(
Object protocolImpl,
Configuration conf,
String bindAddress,
int port,
int numHandlers,
int numReaders,
int queueSizePerHandler,
boolean verbose,
SecretManager<? extends TokenIdentifier> secretManager)
throws IOException {
this(
null,
protocolImpl,
conf,
bindAddress,
port,
numHandlers,
numReaders,
queueSizePerHandler,
verbose,
secretManager,
null);
}
/**
* Construct an RPC server.
*
* @param protocolClass - the protocol being registered can be null for compatibility with old
* usage (see below for details)
* @param protocolImpl the protocol impl that will be called
* @param conf the configuration to use
* @param bindAddress the address to bind on to listen for connection
* @param port the port to listen for connections on
* @param numHandlers the number of method handler threads to run
* @param verbose whether each call should be logged
*/
public Server(
Class<?> protocolClass,
Object protocolImpl,
Configuration conf,
String bindAddress,
int port,
int numHandlers,
int numReaders,
int queueSizePerHandler,
boolean verbose,
SecretManager<? extends TokenIdentifier> secretManager,
String portRangeConfig)
throws IOException {
super(
bindAddress,
port,
null,
numHandlers,
numReaders,
queueSizePerHandler,
conf,
classNameBase(protocolImpl.getClass().getName()),
secretManager,
portRangeConfig);
this.verbose = verbose;
Class<?>[] protocols;
if (protocolClass == null) { // derive protocol from impl
/*
* In order to remain compatible with the old usage where a single
* target protocolImpl is suppled for all protocol interfaces, and
* the protocolImpl is derived from the protocolClass(es)
* we register all interfaces extended by the protocolImpl
*/
protocols = RPC.getProtocolInterfaces(protocolImpl.getClass());
} else {
if (!protocolClass.isAssignableFrom(protocolImpl.getClass())) {
throw new IOException(
"protocolClass "
+ protocolClass
+ " is not implemented by protocolImpl which is of class "
+ protocolImpl.getClass());
}
// register protocol class and its super interfaces
registerProtocolAndImpl(RPC.RpcKind.RPC_WRITABLE, protocolClass, protocolImpl);
protocols = RPC.getProtocolInterfaces(protocolClass);
}
for (Class<?> p : protocols) {
if (!p.equals(VersionedProtocol.class)) {
registerProtocolAndImpl(RPC.RpcKind.RPC_WRITABLE, p, protocolImpl);
}
}
}
private static void log(String value) {
if (value != null && value.length() > 55) value = value.substring(0, 55) + "...";
LOG.info(value);
}
static class WritableRpcInvoker implements RpcInvoker {
@Override
public Writable call(
org.apache.hadoop.ipc.RPC.Server server,
String protocolName,
Writable rpcRequest,
long receivedTime)
throws IOException {
try {
Invocation call = (Invocation) rpcRequest;
if (server.verbose) log("Call: " + call);
// Verify rpc version
if (call.getRpcVersion() != writableRpcVersion) {
// Client is using a different version of WritableRpc
throw new IOException(
"WritableRpc version mismatch, client side version="
+ call.getRpcVersion()
+ ", server side version="
+ writableRpcVersion);
}
long clientVersion = call.getProtocolVersion();
final String protoName;
ProtoClassProtoImpl protocolImpl;
if (call.declaringClassProtocolName.equals(VersionedProtocol.class.getName())) {
// VersionProtocol methods are often used by client to figure out
// which version of protocol to use.
//
// Versioned protocol methods should go the protocolName protocol
// rather than the declaring class of the method since the
// the declaring class is VersionedProtocol which is not
// registered directly.
// Send the call to the highest protocol version
VerProtocolImpl highest =
server.getHighestSupportedProtocol(RPC.RpcKind.RPC_WRITABLE, protocolName);
if (highest == null) {
throw new IOException("Unknown protocol: " + protocolName);
}
protocolImpl = highest.protocolTarget;
} else {
protoName = call.declaringClassProtocolName;
// Find the right impl for the protocol based on client version.
ProtoNameVer pv = new ProtoNameVer(call.declaringClassProtocolName, clientVersion);
protocolImpl = server.getProtocolImplMap(RPC.RpcKind.RPC_WRITABLE).get(pv);
if (protocolImpl == null) { // no match for Protocol AND Version
VerProtocolImpl highest =
server.getHighestSupportedProtocol(RPC.RpcKind.RPC_WRITABLE, protoName);
if (highest == null) {
throw new IOException("Unknown protocol: " + protoName);
} else { // protocol supported but not the version that client wants
throw new RPC.VersionMismatch(protoName, clientVersion, highest.version);
}
}
}
// Invoke the protocol method
long startTime = Time.now();
Method method =
protocolImpl.protocolClass.getMethod(
call.getMethodName(), call.getParameterClasses());
method.setAccessible(true);
server.rpcDetailedMetrics.init(protocolImpl.protocolClass);
Object value = method.invoke(protocolImpl.protocolImpl, call.getParameters());
int processingTime = (int) (Time.now() - startTime);
int qTime = (int) (startTime - receivedTime);
if (LOG.isDebugEnabled()) {
LOG.debug(
"Served: "
+ call.getMethodName()
+ " queueTime= "
+ qTime
+ " procesingTime= "
+ processingTime);
}
server.rpcMetrics.addRpcQueueTime(qTime);
server.rpcMetrics.addRpcProcessingTime(processingTime);
server.rpcDetailedMetrics.addProcessingTime(call.getMethodName(), processingTime);
if (server.verbose) log("Return: " + value);
return new ObjectWritable(method.getReturnType(), value);
} catch (InvocationTargetException e) {
Throwable target = e.getTargetException();
if (target instanceof IOException) {
throw (IOException) target;
} else {
IOException ioe = new IOException(target.toString());
ioe.setStackTrace(target.getStackTrace());
throw ioe;
}
} catch (Throwable e) {
if (!(e instanceof IOException)) {
LOG.error("Unexpected throwable object ", e);
}
IOException ioe = new IOException(e.toString());
ioe.setStackTrace(e.getStackTrace());
throw ioe;
}
}
}
}
@Override
public ProtocolProxy<ProtocolMetaInfoPB> getProtocolMetaInfoProxy(
ConnectionId connId, Configuration conf, SocketFactory factory) throws IOException {
throw new UnsupportedOperationException("This proxy is not supported");
}
}
/** @author stone */
public class LSATApplication extends javax.swing.JFrame {
// private user variables declaration
private Project theProject;
private JDesktopPane theDesktop;
private DocumentViewerFrame documentViewerTable;
private LSAResults currentResults;
private DebugFrame debugFrame;
private Log log = LogFactory.getLog();
private LSATPreferences thePrefs = LSATPreferencesFactory.getPrefs(false);
private DocumentFrameTableModel docFrameTableModel;
private File lastPath;
// end private user variables declaration
/** Creates new form LSATApplication */
public LSATApplication() {
initComponents();
initUserComponents();
setWindowSizeAndTitle();
}
/**
* This method is called from within the constructor to initialize the form. WARNING: Do NOT
* modify this code. The content of this method is always regenerated by the Form Editor.
*/
// <editor-fold defaultstate="collapsed" desc=" Generated Code ">//GEN-BEGIN:initComponents
private void initComponents() {
jMenuBar = new javax.swing.JMenuBar();
jMenuFile = new javax.swing.JMenu();
jMenuItemNewProject = new javax.swing.JMenuItem();
jMenuItemLoadProject = new javax.swing.JMenuItem();
jMenuItemSaveProject = new javax.swing.JMenuItem();
jMenuItemCloseProject = new javax.swing.JMenuItem();
jSeparator = new javax.swing.JSeparator();
jMenuItemImport = new javax.swing.JMenuItem();
jSeparator1 = new javax.swing.JSeparator();
jMenuItemQuit = new javax.swing.JMenuItem();
jMenuEdit = new javax.swing.JMenu();
jMenuItemCut = new javax.swing.JMenuItem();
jMenuItemCopy = new javax.swing.JMenuItem();
jMenuItemPaste = new javax.swing.JMenuItem();
jMenuView = new javax.swing.JMenu();
jMenuItemViewDocuments = new javax.swing.JMenuItem();
jMenuItemViewDebug = new javax.swing.JMenuItem();
jMenuLSA = new javax.swing.JMenu();
jMenuItemPerformLSA = new javax.swing.JMenuItem();
jSeparator2 = new javax.swing.JSeparator();
jMenuItemViewLSAResults = new javax.swing.JMenuItem();
jMenuItemViewVisualResults = new javax.swing.JMenuItem();
jSeparator3 = new javax.swing.JSeparator();
jMenuItemLoadLSAResults = new javax.swing.JMenuItem();
jMenuItemSaveLSAResults = new javax.swing.JMenuItem();
jMenuItemDumpChunks = new javax.swing.JMenuItem();
jMenuItemLogGraphingStats = new javax.swing.JMenuItem();
jMenuItemLogRSGraphingStats = new javax.swing.JMenuItem();
jMenuPreferences = new javax.swing.JMenu();
jMenuItemShowPreferences = new javax.swing.JMenuItem();
getContentPane().setLayout(null);
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jMenuFile.setText("File");
jMenuItemNewProject.setText("New Project");
jMenuItemNewProject.addActionListener(
new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jMenuItemNewProjectActionPerformed(evt);
}
});
jMenuFile.add(jMenuItemNewProject);
jMenuItemLoadProject.setText("Load Project");
jMenuItemLoadProject.addActionListener(
new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jMenuItemLoadProjectActionPerformed(evt);
}
});
jMenuFile.add(jMenuItemLoadProject);
jMenuItemSaveProject.setText("Save Project");
jMenuItemSaveProject.setEnabled(false);
jMenuItemSaveProject.addActionListener(
new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jMenuItemSaveProjectActionPerformed(evt);
}
});
jMenuFile.add(jMenuItemSaveProject);
jMenuItemCloseProject.setText("Close Project");
jMenuItemCloseProject.setEnabled(false);
jMenuFile.add(jMenuItemCloseProject);
jMenuFile.add(jSeparator);
jMenuItemImport.setText("Import");
jMenuItemImport.setEnabled(false);
jMenuItemImport.addActionListener(
new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jMenuItemImportActionPerformed(evt);
}
});
jMenuFile.add(jMenuItemImport);
jMenuFile.add(jSeparator1);
jMenuItemQuit.setText("Quit");
jMenuItemQuit.addActionListener(
new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jMenuItemQuitActionPerformed(evt);
}
});
jMenuFile.add(jMenuItemQuit);
jMenuBar.add(jMenuFile);
jMenuEdit.setText("Edit");
jMenuItemCut.setText("Cut");
jMenuItemCut.addActionListener(
new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jMenuItemCutActionPerformed(evt);
}
});
jMenuEdit.add(jMenuItemCut);
jMenuItemCopy.setText("Copy");
jMenuEdit.add(jMenuItemCopy);
jMenuItemPaste.setText("Paste");
jMenuEdit.add(jMenuItemPaste);
jMenuBar.add(jMenuEdit);
jMenuView.setText("View");
jMenuView.addActionListener(
new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jMenuViewActionPerformed(evt);
}
});
jMenuItemViewDocuments.setText("Documents");
jMenuItemViewDocuments.setEnabled(false);
jMenuItemViewDocuments.addActionListener(
new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jMenuItemViewDocumentsActionPerformed(evt);
}
});
jMenuView.add(jMenuItemViewDocuments);
jMenuItemViewDebug.setText("View Debug");
jMenuItemViewDebug.addActionListener(
new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jMenuItemViewDebugActionPerformed(evt);
}
});
jMenuView.add(jMenuItemViewDebug);
jMenuBar.add(jMenuView);
jMenuLSA.setText("LSA");
jMenuItemPerformLSA.setText("Perform LSA");
jMenuItemPerformLSA.addActionListener(
new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jMenuItemPerformLSAActionPerformed(evt);
}
});
jMenuLSA.add(jMenuItemPerformLSA);
jMenuLSA.add(jSeparator2);
jMenuItemViewLSAResults.setText("View LSA Results");
jMenuItemViewLSAResults.addActionListener(
new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jMenuItemViewLSAResultsActionPerformed(evt);
}
});
jMenuLSA.add(jMenuItemViewLSAResults);
jMenuItemViewVisualResults.setText("View results graph");
jMenuItemViewVisualResults.addActionListener(
new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jMenuItemViewVisualResultsActionPerformed(evt);
}
});
jMenuLSA.add(jMenuItemViewVisualResults);
jMenuLSA.add(jSeparator3);
jMenuItemLoadLSAResults.setText("Load LSA Results");
jMenuItemLoadLSAResults.addActionListener(
new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jMenuItemLoadLSAResultsActionPerformed(evt);
}
});
jMenuLSA.add(jMenuItemLoadLSAResults);
jMenuItemSaveLSAResults.setText("Save LSA Results");
jMenuItemSaveLSAResults.addActionListener(
new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jMenuItemSaveLSAResultsActionPerformed(evt);
}
});
jMenuLSA.add(jMenuItemSaveLSAResults);
jMenuItemDumpChunks.setText("Dump Chunks Belonging to Class");
jMenuItemDumpChunks.addActionListener(
new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jMenuItemDumpChunksActionPerformed(evt);
}
});
jMenuLSA.add(jMenuItemDumpChunks);
jMenuItemLogGraphingStats.setText("Log Graphing Stats");
jMenuItemLogGraphingStats.addActionListener(
new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jMenuItemLogGraphingStatsActionPerformed(evt);
}
});
jMenuItemLogGraphingStats.addMouseListener(
new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
jMenuItemLogGraphingStatsMouseClicked(evt);
}
});
jMenuLSA.add(jMenuItemLogGraphingStats);
jMenuItemLogRSGraphingStats.setText("Log RS Graphing Stats");
jMenuItemLogRSGraphingStats.addActionListener(
new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jMenuItemLogRSGraphingStatsActionPerformed(evt);
}
});
jMenuItemLogRSGraphingStats.addMouseListener(
new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
jMenuItemLogRSGraphingStatsMouseClicked(evt);
}
});
jMenuLSA.add(jMenuItemLogRSGraphingStats);
jMenuBar.add(jMenuLSA);
jMenuPreferences.setText("Preferences");
jMenuItemShowPreferences.setText("Show preferences dialog");
jMenuItemShowPreferences.addActionListener(
new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jMenuItemShowPreferencesActionPerformed(evt);
}
});
jMenuPreferences.add(jMenuItemShowPreferences);
jMenuBar.add(jMenuPreferences);
setJMenuBar(jMenuBar);
pack();
} // </editor-fold>//GEN-END:initComponents
private void jMenuItemLogRSGraphingStatsMouseClicked(
java.awt.event.MouseEvent evt) // GEN-FIRST:event_jMenuItemLogRSGraphingStatsMouseClicked
{ // GEN-HEADEREND:event_jMenuItemLogRSGraphingStatsMouseClicked
// TODO add your handling code here:
} // GEN-LAST:event_jMenuItemLogRSGraphingStatsMouseClicked
private void jMenuItemLogRSGraphingStatsActionPerformed(
java.awt.event.ActionEvent evt) // GEN-FIRST:event_jMenuItemLogRSGraphingStatsActionPerformed
{ // GEN-HEADEREND:event_jMenuItemLogRSGraphingStatsActionPerformed
if (currentResults != null) {
this.currentResults.printGraphingStatsFromReqSimilieData();
}
} // GEN-LAST:event_jMenuItemLogRSGraphingStatsActionPerformed
private void jMenuItemViewVisualResultsActionPerformed(
java.awt.event.ActionEvent evt) // GEN-FIRST:event_jMenuItemViewVisualResultsActionPerformed
{ // GEN-HEADEREND:event_jMenuItemViewVisualResultsActionPerformed
if (this.currentResults != null) {
VisualAnalysisFrame f = new VisualAnalysisFrame(this.currentResults, this.theProject);
theDesktop.add(f);
}
} // GEN-LAST:event_jMenuItemViewVisualResultsActionPerformed
private void jMenuItemLoadProjectActionPerformed(
java.awt.event.ActionEvent evt) // GEN-FIRST:event_jMenuItemLoadProjectActionPerformed
{ // GEN-HEADEREND:event_jMenuItemLoadProjectActionPerformed
JFileChooser jfc = new JFileChooser();
if (lastPath != null) {
jfc.setCurrentDirectory(lastPath);
}
int fileDialogReturnVal = jfc.showOpenDialog(this);
if (fileDialogReturnVal == JFileChooser.APPROVE_OPTION) {
try {
File inputFile = jfc.getSelectedFile();
FileInputStream fis = new FileInputStream(inputFile);
ObjectInputStream ois = new ObjectInputStream(fis);
this.theProject = (Project) ois.readObject();
this.currentResults = (LSAResults) ois.readObject();
lastPath = new File(jfc.getSelectedFile().getPath());
} catch (IOException e) {
if (this.theProject == null) {
log.log(Log.ERROR, "Failed to load project");
}
if (this.currentResults == null) {
log.log(Log.WARNING, "Failed to load results");
}
log.log(Log.WARNING, e.getMessage());
} catch (ClassNotFoundException e) {
log.log(Log.ERROR, "Class not found error, version mismatch");
}
}
if (this.theProject != null) {
jMenuItemViewDocuments.setEnabled(true);
jMenuItemSaveProject.setEnabled(true);
this.setTitle(theProject.getProjectName());
log.log(Log.INFO, "Project Loaded");
}
if (this.currentResults != null) {
log.log(Log.INFO, "Results loaded");
}
} // GEN-LAST:event_jMenuItemLoadProjectActionPerformed
private void jMenuItemSaveProjectActionPerformed(
java.awt.event.ActionEvent evt) // GEN-FIRST:event_jMenuItemSaveProjectActionPerformed
{ // GEN-HEADEREND:event_jMenuItemSaveProjectActionPerformed
if (this.theProject != null) {
JFileChooser jfc = new JFileChooser();
int fileDialogReturnVal = jfc.showSaveDialog(this);
if (fileDialogReturnVal == JFileChooser.APPROVE_OPTION) {
try {
File outputFile = jfc.getSelectedFile();
FileOutputStream fos = new FileOutputStream(outputFile);
ObjectOutputStream oos = new ObjectOutputStream(fos);
oos.writeObject(this.theProject);
if (this.currentResults != null) {
oos.writeObject(this.currentResults);
}
} catch (IOException e) {
log.log(Log.ERROR, "Failed to save file\n" + e.getMessage());
}
}
}
} // GEN-LAST:event_jMenuItemSaveProjectActionPerformed
private void jMenuItemCutActionPerformed(
java.awt.event.ActionEvent evt) // GEN-FIRST:event_jMenuItemCutActionPerformed
{ // GEN-HEADEREND:event_jMenuItemCutActionPerformed
Toolkit t = java.awt.Toolkit.getDefaultToolkit();
Clipboard c = t.getSystemClipboard();
JInternalFrame currentFrame = theDesktop.getSelectedFrame();
/*StringSelection contents = new StringSelection(srcData);
clipboard.setContents(contents, this);*/
} // GEN-LAST:event_jMenuItemCutActionPerformed
private void jMenuItemShowPreferencesActionPerformed(
java.awt.event.ActionEvent evt) // GEN-FIRST:event_jMenuItemShowPreferencesActionPerformed
{ // GEN-HEADEREND:event_jMenuItemShowPreferencesActionPerformed
PreferencesDialog.showPreferencesDialog(this, this.thePrefs);
} // GEN-LAST:event_jMenuItemShowPreferencesActionPerformed
private void jMenuItemLogGraphingStatsActionPerformed(
java.awt.event.ActionEvent evt) { // GEN-FIRST:event_jMenuItemLogGraphingStatsActionPerformed
if (currentResults != null) {
// this.currentResults.printGraphingStats();
}
} // GEN-LAST:event_jMenuItemLogGraphingStatsActionPerformed
private void jMenuItemLogGraphingStatsMouseClicked(
java.awt.event.MouseEvent evt) { // GEN-FIRST:event_jMenuItemLogGraphingStatsMouseClicked
} // GEN-LAST:event_jMenuItemLogGraphingStatsMouseClicked
private void jMenuItemDumpChunksActionPerformed(
java.awt.event.ActionEvent evt) { // GEN-FIRST:event_jMenuItemDumpChunksActionPerformed
if (currentResults != null) {
DocumentClassDialog d = DocumentClassDialog.showClassDialog(this, this.theProject);
DocumentClass selectedClass = d.getSelectedDocumentClass();
currentResults.dumpChunksBelongingToDocumentsWithClass(selectedClass.getId());
}
} // GEN-LAST:event_jMenuItemDumpChunksActionPerformed
private void jMenuItemViewDebugActionPerformed(
java.awt.event.ActionEvent evt) { // GEN-FIRST:event_jMenuItemViewDebugActionPerformed
this.debugFrame.setVisible(true);
} // GEN-LAST:event_jMenuItemViewDebugActionPerformed
private void jMenuItemViewLSAResultsActionPerformed(
java.awt.event.ActionEvent evt) { // GEN-FIRST:event_jMenuItemViewLSAResultsActionPerformed
if (this.currentResults != null) {
LSAResultsFrame f = new LSAResultsFrame(this.currentResults, this.theProject);
theDesktop.add(f);
}
} // GEN-LAST:event_jMenuItemViewLSAResultsActionPerformed
private void jMenuItemLoadLSAResultsActionPerformed(
java.awt.event.ActionEvent evt) { // GEN-FIRST:event_jMenuItemLoadLSAResultsActionPerformed
JFileChooser jfc = new JFileChooser();
int fileDialogReturnVal = jfc.showOpenDialog(this);
if (fileDialogReturnVal == JFileChooser.APPROVE_OPTION) {
try {
File inputFile = jfc.getSelectedFile();
FileInputStream fis = new FileInputStream(inputFile);
ObjectInputStream ois = new ObjectInputStream(fis);
this.currentResults = (LSAResults) ois.readObject();
} catch (IOException e) {
log.log(Log.ERROR, "Failed to load LSA results\n" + e.getMessage());
} catch (ClassNotFoundException e) {
log.log(Log.ERROR, "Class not found : Error loading LSA results due to version mismatch");
}
System.out.println(currentResults == null);
}
} // GEN-LAST:event_jMenuItemLoadLSAResultsActionPerformed
private void jMenuItemSaveLSAResultsActionPerformed(
java.awt.event.ActionEvent evt) { // GEN-FIRST:event_jMenuItemSaveLSAResultsActionPerformed
if (this.currentResults != null) {
JFileChooser jfc = new JFileChooser();
int fileDialogReturnVal = jfc.showSaveDialog(this);
if (fileDialogReturnVal == JFileChooser.APPROVE_OPTION) {
try {
File outputFile = jfc.getSelectedFile();
FileOutputStream fos = new FileOutputStream(outputFile);
ObjectOutputStream oos = new ObjectOutputStream(fos);
oos.writeObject(this.currentResults);
} catch (IOException e) {
System.out.println("IOexception");
System.out.println(e.getMessage());
}
}
}
} // GEN-LAST:event_jMenuItemSaveLSAResultsActionPerformed
private void jMenuItemPerformLSAActionPerformed(
java.awt.event.ActionEvent evt) { // GEN-FIRST:event_jMenuItemPerformLSAActionPerformed
Thread t =
new LSAThread(
theProject.getDocumentCollection(),
theProject.getDocumentClassCollection(),
thePrefs.get("lsa-regex"),
this);
t.start();
} // GEN-LAST:event_jMenuItemPerformLSAActionPerformed
private void jMenuItemImportActionPerformed(
java.awt.event.ActionEvent evt) { // GEN-FIRST:event_jMenuItemImportActionPerformed
JFileChooser jfc = new JFileChooser();
jfc.setMultiSelectionEnabled(true);
if (lastPath != null) {
jfc.setCurrentDirectory(lastPath);
}
int fileDialogReturnVal = jfc.showOpenDialog(this);
// now select the file
if (fileDialogReturnVal == JFileChooser.APPROVE_OPTION) {
// add code here to allow selection of a document class
DocumentClassDialog d = DocumentClassDialog.showClassDialog(this, this.theProject);
DocumentClass selectedClass = d.getSelectedDocumentClass();
File[] selected = jfc.getSelectedFiles();
for (int i = 0; i < selected.length; i++) {
theProject.addNewDocument(selected[i], 1.0f, selected[i].toString(), selectedClass);
}
docFrameTableModel.fireTableDataChanged();
lastPath = new File(jfc.getSelectedFile().getPath());
}
} // GEN-LAST:event_jMenuItemImportActionPerformed
private void jMenuItemViewDocumentsActionPerformed(
java.awt.event.ActionEvent evt) { // GEN-FIRST:event_jMenuItemViewDocumentsActionPerformed
if (this.docFrameTableModel == null) {
this.docFrameTableModel = new DocumentFrameTableModel(theProject.getDocumentCollection());
}
DocumentFrame d =
new DocumentFrame(this.docFrameTableModel, theDesktop, theProject.getDocumentCollection());
d.setVisible(true);
theDesktop.add(d);
} // GEN-LAST:event_jMenuItemViewDocumentsActionPerformed
private void jMenuViewActionPerformed(
java.awt.event.ActionEvent evt) { // GEN-FIRST:event_jMenuViewActionPerformed
} // GEN-LAST:event_jMenuViewActionPerformed
private void jMenuItemQuitActionPerformed(
java.awt.event.ActionEvent evt) { // GEN-FIRST:event_jMenuItemQuitActionPerformed
this.shutDown();
System.exit(0);
} // GEN-LAST:event_jMenuItemQuitActionPerformed
private void jMenuItemNewProjectActionPerformed(
java.awt.event.ActionEvent evt) { // GEN-FIRST:event_jMenuItemNewProjectActionPerformed
String projectName = JOptionPane.showInputDialog(null, "Please enter a project name");
if (projectName != null) {
theProject = new Project(projectName);
// now we've got a project we need to enalbe the save and close buttons
jMenuItemSaveProject.setEnabled(true);
jMenuItemCloseProject.setEnabled(true);
jMenuItemViewDocuments.setEnabled(true);
jMenuItemImport.setEnabled(true);
// set title
setTitle("LSAT - " + projectName);
jMenuItemViewDocumentsActionPerformed(null);
}
} // GEN-LAST:event_jMenuItemNewProjectActionPerformed
private void setWindowSizeAndTitle() {
Dimension screenSize = this.getToolkit().getScreenSize();
int newHeight = (int) ((float) screenSize.height * 0.7);
int newWidth = (int) ((float) screenSize.width * 0.7);
this.setSize(newWidth, newHeight);
newHeight = (int) ((0.3 * (float) screenSize.height) / 2);
newWidth = (int) ((0.3 * (float) screenSize.width) / 2);
this.setLocation(newWidth, newHeight);
this.setTitle("LSAT");
}
private void initUserComponents() {
// required to attach windows to in the MDI world
theDesktop = new JDesktopPane();
setContentPane(theDesktop);
// create and add the debug frame
debugFrame = new DebugFrame();
debugFrame.setVisible(false);
theDesktop.add(debugFrame);
}
private void shutDown() {
// nothing in here yet
}
public void showLSAResults(LSAResults results) {
this.currentResults = results;
jMenuItemViewLSAResultsActionPerformed(null);
}
// Variables declaration - do not modify//GEN-BEGIN:variables
private javax.swing.JMenuBar jMenuBar;
private javax.swing.JMenu jMenuEdit;
private javax.swing.JMenu jMenuFile;
private javax.swing.JMenuItem jMenuItemCloseProject;
private javax.swing.JMenuItem jMenuItemCopy;
private javax.swing.JMenuItem jMenuItemCut;
private javax.swing.JMenuItem jMenuItemDumpChunks;
private javax.swing.JMenuItem jMenuItemImport;
private javax.swing.JMenuItem jMenuItemLoadLSAResults;
private javax.swing.JMenuItem jMenuItemLoadProject;
private javax.swing.JMenuItem jMenuItemLogGraphingStats;
private javax.swing.JMenuItem jMenuItemLogRSGraphingStats;
private javax.swing.JMenuItem jMenuItemNewProject;
private javax.swing.JMenuItem jMenuItemPaste;
private javax.swing.JMenuItem jMenuItemPerformLSA;
private javax.swing.JMenuItem jMenuItemQuit;
private javax.swing.JMenuItem jMenuItemSaveLSAResults;
private javax.swing.JMenuItem jMenuItemSaveProject;
private javax.swing.JMenuItem jMenuItemShowPreferences;
private javax.swing.JMenuItem jMenuItemViewDebug;
private javax.swing.JMenuItem jMenuItemViewDocuments;
private javax.swing.JMenuItem jMenuItemViewLSAResults;
private javax.swing.JMenuItem jMenuItemViewVisualResults;
private javax.swing.JMenu jMenuLSA;
private javax.swing.JMenu jMenuPreferences;
private javax.swing.JMenu jMenuView;
private javax.swing.JSeparator jSeparator;
private javax.swing.JSeparator jSeparator1;
private javax.swing.JSeparator jSeparator2;
private javax.swing.JSeparator jSeparator3;
// End of variables declaration//GEN-END:variables
/** @param args the command line arguments */
public static void main(String args[]) {
java.awt.EventQueue.invokeLater(
new Runnable() {
public void run() {
new LSATApplication().setVisible(true);
}
});
}
}
/**
* ******************************************************** The Secondary NameNode is a helper to
* the primary NameNode. The Secondary is responsible for supporting periodic checkpoints of the
* HDFS metadata. The current design allows only one Secondary NameNode per HDFs cluster.
*
* <p>The Secondary NameNode is a daemon that periodically wakes up (determined by the schedule
* specified in the configuration), triggers a periodic checkpoint and then goes back to sleep. The
* Secondary NameNode uses the ClientProtocol to talk to the primary NameNode.
*
* <p>********************************************************
*/
public class SecondaryNameNode implements Runnable {
public static final Log LOG = LogFactory.getLog(SecondaryNameNode.class.getName());
private String fsName;
private CheckpointStorage checkpointImage;
private FSNamesystem namesystem;
private NamenodeProtocol namenode;
private Configuration conf;
private InetSocketAddress nameNodeAddr;
private volatile boolean shouldRun;
private HttpServer infoServer;
private int infoPort;
private String infoBindAddress;
private Collection<File> checkpointDirs;
private Collection<File> checkpointEditsDirs;
private long checkpointPeriod; // in seconds
private long checkpointSize; // size (in MB) of current Edit Log
/** Utility class to facilitate junit test error simulation. */
static class ErrorSimulator {
private static boolean[] simulation = null; // error simulation events
static void initializeErrorSimulationEvent(int numberOfEvents) {
simulation = new boolean[numberOfEvents];
for (int i = 0; i < numberOfEvents; i++) {
simulation[i] = false;
}
}
static boolean getErrorSimulation(int index) {
if (simulation == null) return false;
assert (index < simulation.length);
return simulation[index];
}
static void setErrorSimulation(int index) {
assert (index < simulation.length);
simulation[index] = true;
}
static void clearErrorSimulation(int index) {
assert (index < simulation.length);
simulation[index] = false;
}
}
FSImage getFSImage() {
return checkpointImage;
}
/** Create a connection to the primary namenode. */
public SecondaryNameNode(Configuration conf) throws IOException {
try {
initialize(conf);
} catch (IOException e) {
shutdown();
throw e;
}
}
/** Initialize SecondaryNameNode. */
private void initialize(Configuration conf) throws IOException {
// initiate Java VM metrics
JvmMetrics.init("SecondaryNameNode", conf.get("session.id"));
// Create connection to the namenode.
shouldRun = true;
nameNodeAddr = NameNode.getAddress(conf);
this.conf = conf;
this.namenode =
(NamenodeProtocol)
RPC.waitForProxy(
NamenodeProtocol.class, NamenodeProtocol.versionID, nameNodeAddr, conf);
// initialize checkpoint directories
fsName = getInfoServer();
checkpointDirs = FSImage.getCheckpointDirs(conf, "/tmp/hadoop/dfs/namesecondary");
checkpointEditsDirs = FSImage.getCheckpointEditsDirs(conf, "/tmp/hadoop/dfs/namesecondary");
checkpointImage = new CheckpointStorage(conf);
checkpointImage.recoverCreate(checkpointDirs, checkpointEditsDirs);
// Initialize other scheduling parameters from the configuration
checkpointPeriod = conf.getLong("fs.checkpoint.period", 3600);
checkpointSize = conf.getLong("fs.checkpoint.size", 4194304);
// initialize the webserver for uploading files.
String infoAddr =
NetUtils.getServerAddress(
conf,
"dfs.secondary.info.bindAddress",
"dfs.secondary.info.port",
"dfs.secondary.http.address");
InetSocketAddress infoSocAddr = NetUtils.createSocketAddr(infoAddr);
infoBindAddress = infoSocAddr.getHostName();
int tmpInfoPort = infoSocAddr.getPort();
infoServer = new HttpServer("secondary", infoBindAddress, tmpInfoPort, tmpInfoPort == 0, conf);
infoServer.setAttribute("name.system.image", checkpointImage);
this.infoServer.setAttribute("name.conf", conf);
infoServer.addInternalServlet("getimage", "/getimage", GetImageServlet.class);
infoServer.start();
// The web-server port can be ephemeral... ensure we have the correct info
infoPort = infoServer.getPort();
conf.set("dfs.secondary.http.address", infoBindAddress + ":" + infoPort);
LOG.info("Secondary Web-server up at: " + infoBindAddress + ":" + infoPort);
LOG.warn(
"Checkpoint Period :"
+ checkpointPeriod
+ " secs "
+ "("
+ checkpointPeriod / 60
+ " min)");
LOG.warn(
"Log Size Trigger :"
+ checkpointSize
+ " bytes "
+ "("
+ checkpointSize / 1024
+ " KB)");
}
/** Shut down this instance of the datanode. Returns only after shutdown is complete. */
public void shutdown() {
shouldRun = false;
try {
if (infoServer != null) infoServer.stop();
} catch (Exception e) {
LOG.warn("Exception shutting down SecondaryNameNode", e);
}
try {
if (checkpointImage != null) checkpointImage.close();
} catch (IOException e) {
LOG.warn(StringUtils.stringifyException(e));
}
}
//
// The main work loop
//
public void run() {
//
// Poll the Namenode (once every 5 minutes) to find the size of the
// pending edit log.
//
long period = 5 * 60; // 5 minutes
long lastCheckpointTime = 0;
if (checkpointPeriod < period) {
period = checkpointPeriod;
}
while (shouldRun) {
try {
Thread.sleep(1000 * period);
} catch (InterruptedException ie) {
// do nothing
}
if (!shouldRun) {
break;
}
try {
long now = System.currentTimeMillis();
long size = namenode.getEditLogSize();
if (size >= checkpointSize || now >= lastCheckpointTime + 1000 * checkpointPeriod) {
doCheckpoint();
lastCheckpointTime = now;
}
} catch (IOException e) {
LOG.error("Exception in doCheckpoint: ");
LOG.error(StringUtils.stringifyException(e));
e.printStackTrace();
checkpointImage.imageDigest = null;
} catch (Throwable e) {
LOG.error("Throwable Exception in doCheckpoint: ");
LOG.error(StringUtils.stringifyException(e));
e.printStackTrace();
Runtime.getRuntime().exit(-1);
}
}
}
/**
* Download <code>fsimage</code> and <code>edits</code> files from the name-node.
*
* @return true if a new image has been downloaded and needs to be loaded
* @throws IOException
*/
private boolean downloadCheckpointFiles(CheckpointSignature sig) throws IOException {
checkpointImage.cTime = sig.cTime;
checkpointImage.checkpointTime = sig.checkpointTime;
boolean downloadImage = true;
String fileid;
File[] srcNames;
if (sig.imageDigest.equals(checkpointImage.imageDigest)) {
downloadImage = false;
LOG.info("Image has not changed. Will not download image.");
} else {
// get fsimage
srcNames = checkpointImage.getImageFiles();
assert srcNames.length > 0 : "No checkpoint targets.";
fileid = "getimage=1";
TransferFsImage.getFileClient(fsName, fileid, srcNames, false);
checkpointImage.imageDigest = sig.imageDigest;
LOG.info(
"Downloaded file " + srcNames[0].getName() + " size " + srcNames[0].length() + " bytes.");
}
// get edits file
fileid = "getedit=1";
srcNames = checkpointImage.getEditsFiles();
assert srcNames.length > 0 : "No checkpoint targets.";
TransferFsImage.getFileClient(fsName, fileid, srcNames, false);
LOG.info(
"Downloaded file " + srcNames[0].getName() + " size " + srcNames[0].length() + " bytes.");
checkpointImage.checkpointUploadDone(null);
return downloadImage;
}
/** Copy the new fsimage into the NameNode */
private void putFSImage(CheckpointSignature sig) throws IOException {
String fileid =
"putimage=1&port="
+ infoPort
+ "&machine="
+ InetAddress.getLocalHost().getHostAddress()
+ "&token="
+ sig.toString();
LOG.info("Posted URL " + fsName + fileid);
TransferFsImage.getFileClient(fsName, fileid, (File[]) null, false);
}
/** Returns the Jetty server that the Namenode is listening on. */
private String getInfoServer() throws IOException {
URI fsName = FileSystem.getDefaultUri(conf);
if (!"hdfs".equals(fsName.getScheme())) {
throw new IOException("This is not a DFS");
}
return NetUtils.getServerAddress(
conf, "dfs.info.bindAddress", "dfs.info.port", "dfs.http.address");
}
/** Create a new checkpoint */
void doCheckpoint() throws IOException {
LOG.info("Checkpoint starting");
// Do the required initialization of the merge work area.
startCheckpoint();
// Tell the namenode to start logging transactions in a new edit file
// Returns a token that would be used to upload the merged image.
CheckpointSignature sig = (CheckpointSignature) namenode.rollEditLog();
// error simulation code for junit test
if (ErrorSimulator.getErrorSimulation(0)) {
throw new IOException("Simulating error0 " + "after creating edits.new");
}
boolean loadImage = downloadCheckpointFiles(sig); // Fetch fsimage and edits
doMerge(sig, loadImage); // Do the merge
//
// Upload the new image into the NameNode. Then tell the Namenode
// to make this new uploaded image as the most current image.
//
putFSImage(sig);
// error simulation code for junit test
if (ErrorSimulator.getErrorSimulation(1)) {
throw new IOException("Simulating error1 " + "after uploading new image to NameNode");
}
namenode.rollFsImage(new CheckpointSignature(checkpointImage));
checkpointImage.endCheckpoint();
LOG.info("Checkpoint done. New Image Size: " + checkpointImage.getFsImageName().length());
}
private void startCheckpoint() throws IOException {
checkpointImage.unlockAll();
checkpointImage.getEditLog().close();
checkpointImage.recoverCreate(checkpointDirs, checkpointEditsDirs);
checkpointImage.startCheckpoint();
}
/** Merge downloaded image and edits and write the new image into current storage directory. */
private void doMerge(CheckpointSignature sig, boolean loadImage) throws IOException {
if (loadImage) { // create an empty namespace if new image
namesystem = new FSNamesystem(checkpointImage, conf);
}
assert namesystem.dir.fsImage == checkpointImage;
checkpointImage.doMerge(sig, loadImage);
}
/**
* @param argv The parameters passed to this program.
* @exception Exception if the filesystem does not exist.
* @return 0 on success, non zero on error.
*/
private int processArgs(String[] argv) throws Exception {
if (argv.length < 1) {
printUsage("");
return -1;
}
int exitCode = -1;
int i = 0;
String cmd = argv[i++];
//
// verify that we have enough command line parameters
//
if ("-geteditsize".equals(cmd)) {
if (argv.length != 1) {
printUsage(cmd);
return exitCode;
}
} else if ("-checkpoint".equals(cmd)) {
if (argv.length != 1 && argv.length != 2) {
printUsage(cmd);
return exitCode;
}
if (argv.length == 2 && !"force".equals(argv[i])) {
printUsage(cmd);
return exitCode;
}
}
exitCode = 0;
try {
if ("-checkpoint".equals(cmd)) {
long size = namenode.getEditLogSize();
if (size >= checkpointSize || argv.length == 2 && "force".equals(argv[i])) {
doCheckpoint();
} else {
System.err.println(
"EditLog size "
+ size
+ " bytes is "
+ "smaller than configured checkpoint "
+ "size "
+ checkpointSize
+ " bytes.");
System.err.println("Skipping checkpoint.");
}
} else if ("-geteditsize".equals(cmd)) {
long size = namenode.getEditLogSize();
System.out.println("EditLog size is " + size + " bytes");
} else {
exitCode = -1;
LOG.error(cmd.substring(1) + ": Unknown command");
printUsage("");
}
} catch (RemoteException e) {
//
// This is a error returned by hadoop server. Print
// out the first line of the error mesage, ignore the stack trace.
exitCode = -1;
try {
String[] content;
content = e.getLocalizedMessage().split("\n");
LOG.error(cmd.substring(1) + ": " + content[0]);
} catch (Exception ex) {
LOG.error(cmd.substring(1) + ": " + ex.getLocalizedMessage());
}
} catch (IOException e) {
//
// IO exception encountered locally.
//
exitCode = -1;
LOG.error(cmd.substring(1) + ": " + e.getLocalizedMessage());
} finally {
// Does the RPC connection need to be closed?
}
return exitCode;
}
/**
* Displays format of commands.
*
* @param cmd The command that is being executed.
*/
private void printUsage(String cmd) {
if ("-geteditsize".equals(cmd)) {
System.err.println("Usage: java SecondaryNameNode" + " [-geteditsize]");
} else if ("-checkpoint".equals(cmd)) {
System.err.println("Usage: java SecondaryNameNode" + " [-checkpoint [force]]");
} else {
System.err.println(
"Usage: java SecondaryNameNode " + "[-checkpoint [force]] " + "[-geteditsize] ");
}
}
/**
* main() has some simple utility methods.
*
* @param argv Command line parameters.
* @exception Exception if the filesystem does not exist.
*/
public static void main(String[] argv) throws Exception {
StringUtils.startupShutdownMessage(SecondaryNameNode.class, argv, LOG);
Configuration tconf = new Configuration();
if (argv.length >= 1) {
SecondaryNameNode secondary = new SecondaryNameNode(tconf);
int ret = secondary.processArgs(argv);
System.exit(ret);
}
// Create a never ending deamon
Daemon checkpointThread = new Daemon(new SecondaryNameNode(tconf));
checkpointThread.start();
}
static class CheckpointStorage extends FSImage {
/** */
CheckpointStorage(Configuration conf) throws IOException {
super(conf);
}
@Override
public boolean isConversionNeeded(StorageDirectory sd) {
return false;
}
/**
* Analyze checkpoint directories. Create directories if they do not exist. Recover from an
* unsuccessful checkpoint is necessary.
*
* @param dataDirs
* @param editsDirs
* @throws IOException
*/
void recoverCreate(Collection<File> dataDirs, Collection<File> editsDirs) throws IOException {
Collection<File> tempDataDirs = new ArrayList<File>(dataDirs);
Collection<File> tempEditsDirs = new ArrayList<File>(editsDirs);
this.storageDirs = new ArrayList<StorageDirectory>();
setStorageDirectories(tempDataDirs, tempEditsDirs);
for (Iterator<StorageDirectory> it = dirIterator(); it.hasNext(); ) {
StorageDirectory sd = it.next();
boolean isAccessible = true;
try { // create directories if don't exist yet
if (!sd.getRoot().mkdirs()) {
// do nothing, directory is already created
}
} catch (SecurityException se) {
isAccessible = false;
}
if (!isAccessible)
throw new InconsistentFSStateException(
sd.getRoot(), "cannot access checkpoint directory.");
StorageState curState;
try {
curState = sd.analyzeStorage(HdfsConstants.StartupOption.REGULAR);
// sd is locked but not opened
switch (curState) {
case NON_EXISTENT:
// fail if any of the configured checkpoint dirs are inaccessible
throw new InconsistentFSStateException(
sd.getRoot(), "checkpoint directory does not exist or is not accessible.");
case NOT_FORMATTED:
break; // it's ok since initially there is no current and VERSION
case NORMAL:
break;
default: // recovery is possible
sd.doRecover(curState);
}
} catch (IOException ioe) {
sd.unlock();
throw ioe;
}
}
}
/**
* Prepare directories for a new checkpoint.
*
* <p>Rename <code>current</code> to <code>lastcheckpoint.tmp</code> and recreate <code>current
* </code>.
*
* @throws IOException
*/
void startCheckpoint() throws IOException {
for (StorageDirectory sd : storageDirs) {
moveCurrent(sd);
}
}
void endCheckpoint() throws IOException {
for (StorageDirectory sd : storageDirs) {
moveLastCheckpoint(sd);
}
}
/** Merge image and edits, and verify consistency with the signature. */
private void doMerge(CheckpointSignature sig, boolean loadImage) throws IOException {
getEditLog().open();
StorageDirectory sdName = null;
StorageDirectory sdEdits = null;
Iterator<StorageDirectory> it = null;
if (loadImage) {
it = dirIterator(NameNodeDirType.IMAGE);
if (it.hasNext()) sdName = it.next();
if (sdName == null) throw new IOException("Could not locate checkpoint fsimage");
}
it = dirIterator(NameNodeDirType.EDITS);
if (it.hasNext()) sdEdits = it.next();
if (sdEdits == null) throw new IOException("Could not locate checkpoint edits");
if (loadImage) {
loadFSImage(FSImage.getImageFile(sdName, NameNodeFile.IMAGE));
}
loadFSEdits(sdEdits);
sig.validateStorageInfo(this);
saveNamespace(false);
}
}
}
/** This is <em>not</em> reusable. */
@SuppressWarnings("deprecation")
public class BSONWritable implements BSONObject, WritableComparable {
/** Constructs a new instance. */
public BSONWritable() {
_doc = new BasicBSONObject();
}
/**
* Copy constructor, copies data from an existing BSONWritable
*
* @param other The BSONWritable to copy from
*/
public BSONWritable(BSONWritable other) {
this();
copy(other);
}
/** Constructs a new instance around an existing BSONObject */
public BSONWritable(BSONObject doc) {
this();
putAll(doc);
}
/**
* {@inheritDoc}
*
* @see BSONObject#put(String,Object)
*/
public Object put(String key, Object value) {
return _doc.put(key, value);
}
/**
* {@inheritDoc}
*
* @see BSONObject#putAll(BSONObject)
*/
public void putAll(BSONObject otherDoc) {
_doc.putAll(otherDoc);
}
/**
* {@inheritDoc}
*
* @see BSONObject#putAll(Map)
*/
public void putAll(Map otherMap) {
_doc.putAll(otherMap);
}
/**
* {@inheritDoc}
*
* @see BSONObject#get(String)
*/
public Object get(String key) {
return _doc.get(key);
}
/**
* {@inheritDoc}
*
* @see BSONObject#toMap()
*/
public Map toMap() {
return _doc.toMap();
}
/**
* {@inheritDoc}
*
* @see BSONObject#removeField(String)
*/
public Object removeField(String key) {
return _doc.removeField(key);
}
/**
* {@inheritDoc}
*
* @see BSONObject#containsKey(String)
*/
public boolean containsKey(String key) {
return _doc.containsKey(key);
}
/**
* {@inheritDoc}
*
* @see BSONObject#containsField(String)
*/
public boolean containsField(String fieldName) {
return _doc.containsField(fieldName);
}
/**
* {@inheritDoc}
*
* @see BSONObject#keySet()
*/
public Set<java.lang.String> keySet() {
return _doc.keySet();
}
/**
* {@inheritDoc}
*
* @see Writable#write(DataOutput)
*/
public void write(DataOutput out) throws IOException {
BSONEncoder enc = new BSONEncoder();
BasicOutputBuffer buf = new BasicOutputBuffer();
enc.set(buf);
enc.putObject(_doc);
enc.done();
out.writeInt(buf.size());
// For better performance we can copy BasicOutputBuffer.pipe(OutputStream)
// to have a method signature that works with DataOutput
out.write(buf.toByteArray());
}
/**
* {@inheritDoc}
*
* @see Writable#readFields(DataInput)
*/
public void readFields(DataInput in) throws IOException {
BSONDecoder dec = new BSONDecoder();
BSONCallback cb = new BasicBSONCallback();
// Read the BSON length from the start of the record
int dataLen = in.readInt();
byte[] buf = new byte[dataLen];
in.readFully(buf);
dec.decode(buf, cb);
_doc = (BSONObject) cb.get();
log.info("Decoded a BSON Object: " + _doc);
}
/** {@inheritDoc} */
@Override
public String toString() {
BSONEncoder enc = new BSONEncoder();
BasicOutputBuffer buf = new BasicOutputBuffer();
enc.set(buf);
enc.putObject(_doc);
enc.done();
String str = buf.asString();
log.debug("Output As String: '" + str + "'");
return str;
}
/** Used by child copy constructors. */
protected synchronized void copy(Writable other) {
if (other != null) {
try {
DataOutputBuffer out = new DataOutputBuffer();
other.write(out);
DataInputBuffer in = new DataInputBuffer();
in.reset(out.getData(), out.getLength());
readFields(in);
} catch (IOException e) {
throw new IllegalArgumentException("map cannot be copied: " + e.getMessage());
}
} else {
throw new IllegalArgumentException("source map cannot be null");
}
}
public static class Comparator extends WritableComparator {
public Comparator() {
super(BSONWritable.class);
}
public int compare(WritableComparable a, WritableComparable b) {
if (a instanceof BSONWritable && b instanceof BSONWritable) {
return ((BSONWritable) a)._doc.toString().compareTo(((BSONWritable) b)._doc.toString());
} else {
return -1;
}
}
}
static { // register this comparator
WritableComparator.define(BSONWritable.class, new Comparator());
}
@Override
public int compareTo(Object o) {
return new Comparator().compare(this, o);
}
protected BSONObject _doc;
private static final Log log = LogFactory.getLog(BSONWritable.class);
}
/**
* Base class that runs a task in a separate process. Tasks are run in a separate process in order
* to isolate the map/reduce system code from bugs in user supplied map and reduce functions.
*/
abstract class TaskRunner extends Thread {
public static final Log LOG = LogFactory.getLog(TaskRunner.class);
volatile boolean killed = false;
private TaskTracker.TaskInProgress tip;
private Task t;
private Object lock = new Object();
private volatile boolean done = false;
private int exitCode = -1;
private boolean exitCodeSet = false;
private TaskTracker tracker;
protected JobConf conf;
JvmManager jvmManager;
/** for cleaning up old map outputs */
protected MapOutputFile mapOutputFile;
public TaskRunner(TaskTracker.TaskInProgress tip, TaskTracker tracker, JobConf conf) {
this.tip = tip;
this.t = tip.getTask();
this.tracker = tracker;
this.conf = conf;
this.mapOutputFile = new MapOutputFile(t.getJobID());
this.mapOutputFile.setConf(conf);
this.jvmManager = tracker.getJvmManagerInstance();
}
public Task getTask() {
return t;
}
public TaskTracker.TaskInProgress getTaskInProgress() {
return tip;
}
public TaskTracker getTracker() {
return tracker;
}
/**
* Called to assemble this task's input. This method is run in the parent process before the child
* is spawned. It should not execute user code, only system code.
*/
public boolean prepare() throws IOException {
return true;
}
/**
* Called when this task's output is no longer needed. This method is run in the parent process
* after the child exits. It should not execute user code, only system code.
*/
public void close() throws IOException {}
private static String stringifyPathArray(Path[] p) {
if (p == null) {
return null;
}
StringBuffer str = new StringBuffer(p[0].toString());
for (int i = 1; i < p.length; i++) {
str.append(",");
str.append(p[i].toString());
}
return str.toString();
}
@Override
public final void run() {
try {
// before preparing the job localize
// all the archives
TaskAttemptID taskid = t.getTaskID();
LocalDirAllocator lDirAlloc = new LocalDirAllocator("mapred.local.dir");
File jobCacheDir = null;
if (conf.getJar() != null) {
jobCacheDir = new File(new Path(conf.getJar()).getParent().toString());
}
File workDir =
new File(
lDirAlloc
.getLocalPathToRead(
TaskTracker.getJobCacheSubdir()
+ Path.SEPARATOR
+ t.getJobID()
+ Path.SEPARATOR
+ t.getTaskID()
+ Path.SEPARATOR
+ MRConstants.WORKDIR,
conf)
.toString());
URI[] archives = DistributedCache.getCacheArchives(conf);
URI[] files = DistributedCache.getCacheFiles(conf);
FileStatus fileStatus;
FileSystem fileSystem;
Path localPath;
String baseDir;
if ((archives != null) || (files != null)) {
if (archives != null) {
String[] archivesTimestamps = DistributedCache.getArchiveTimestamps(conf);
Path[] p = new Path[archives.length];
for (int i = 0; i < archives.length; i++) {
fileSystem = FileSystem.get(archives[i], conf);
fileStatus = fileSystem.getFileStatus(new Path(archives[i].getPath()));
String cacheId = DistributedCache.makeRelative(archives[i], conf);
String cachePath = TaskTracker.getCacheSubdir() + Path.SEPARATOR + cacheId;
if (lDirAlloc.ifExists(cachePath, conf)) {
localPath = lDirAlloc.getLocalPathToRead(cachePath, conf);
} else {
localPath = lDirAlloc.getLocalPathForWrite(cachePath, fileStatus.getLen(), conf);
}
baseDir = localPath.toString().replace(cacheId, "");
p[i] =
DistributedCache.getLocalCache(
archives[i],
conf,
new Path(baseDir),
fileStatus,
true,
Long.parseLong(archivesTimestamps[i]),
new Path(workDir.getAbsolutePath()),
false);
}
DistributedCache.setLocalArchives(conf, stringifyPathArray(p));
}
if ((files != null)) {
String[] fileTimestamps = DistributedCache.getFileTimestamps(conf);
Path[] p = new Path[files.length];
for (int i = 0; i < files.length; i++) {
fileSystem = FileSystem.get(files[i], conf);
fileStatus = fileSystem.getFileStatus(new Path(files[i].getPath()));
String cacheId = DistributedCache.makeRelative(files[i], conf);
String cachePath = TaskTracker.getCacheSubdir() + Path.SEPARATOR + cacheId;
if (lDirAlloc.ifExists(cachePath, conf)) {
localPath = lDirAlloc.getLocalPathToRead(cachePath, conf);
} else {
localPath = lDirAlloc.getLocalPathForWrite(cachePath, fileStatus.getLen(), conf);
}
baseDir = localPath.toString().replace(cacheId, "");
p[i] =
DistributedCache.getLocalCache(
files[i],
conf,
new Path(baseDir),
fileStatus,
false,
Long.parseLong(fileTimestamps[i]),
new Path(workDir.getAbsolutePath()),
false);
}
DistributedCache.setLocalFiles(conf, stringifyPathArray(p));
}
Path localTaskFile = new Path(t.getJobFile());
FileSystem localFs = FileSystem.getLocal(conf);
localFs.delete(localTaskFile, true);
OutputStream out = localFs.create(localTaskFile);
try {
conf.writeXml(out);
} finally {
out.close();
}
}
if (!prepare()) {
return;
}
String sep = System.getProperty("path.separator");
StringBuffer classPath = new StringBuffer();
// start with same classpath as parent process
classPath.append(System.getProperty("java.class.path"));
classPath.append(sep);
if (!workDir.mkdirs()) {
if (!workDir.isDirectory()) {
LOG.fatal("Mkdirs failed to create " + workDir.toString());
}
}
String jar = conf.getJar();
if (jar != null) {
// if jar exists, it into workDir
File[] libs = new File(jobCacheDir, "lib").listFiles();
if (libs != null) {
for (int i = 0; i < libs.length; i++) {
classPath.append(sep); // add libs from jar to classpath
classPath.append(libs[i]);
}
}
classPath.append(sep);
classPath.append(new File(jobCacheDir, "classes"));
classPath.append(sep);
classPath.append(jobCacheDir);
}
// include the user specified classpath
// archive paths
Path[] archiveClasspaths = DistributedCache.getArchiveClassPaths(conf);
if (archiveClasspaths != null && archives != null) {
Path[] localArchives = DistributedCache.getLocalCacheArchives(conf);
if (localArchives != null) {
for (int i = 0; i < archives.length; i++) {
for (int j = 0; j < archiveClasspaths.length; j++) {
if (archives[i].getPath().equals(archiveClasspaths[j].toString())) {
classPath.append(sep);
classPath.append(localArchives[i].toString());
}
}
}
}
}
// file paths
Path[] fileClasspaths = DistributedCache.getFileClassPaths(conf);
if (fileClasspaths != null && files != null) {
Path[] localFiles = DistributedCache.getLocalCacheFiles(conf);
if (localFiles != null) {
for (int i = 0; i < files.length; i++) {
for (int j = 0; j < fileClasspaths.length; j++) {
if (files[i].getPath().equals(fileClasspaths[j].toString())) {
classPath.append(sep);
classPath.append(localFiles[i].toString());
}
}
}
}
}
classPath.append(sep);
classPath.append(workDir);
// Build exec child jmv args.
Vector<String> vargs = new Vector<String>(8);
File jvm = // use same jvm as parent
new File(new File(System.getProperty("java.home"), "bin"), "java");
vargs.add(jvm.toString());
// Add child (task) java-vm options.
//
// The following symbols if present in mapred.child.java.opts value are
// replaced:
// + @taskid@ is interpolated with value of TaskID.
// Other occurrences of @ will not be altered.
//
// Example with multiple arguments and substitutions, showing
// jvm GC logging, and start of a passwordless JVM JMX agent so can
// connect with jconsole and the likes to watch child memory, threads
// and get thread dumps.
//
// <property>
// <name>mapred.child.java.opts</name>
// <value>-verbose:gc -Xloggc:/tmp/@[email protected] \
// -Dcom.sun.management.jmxremote.authenticate=false \
// -Dcom.sun.management.jmxremote.ssl=false \
// </value>
// </property>
//
String javaOpts = conf.get("mapred.child.java.opts", "-Xmx200m");
javaOpts = javaOpts.replace("@taskid@", taskid.toString());
String[] javaOptsSplit = javaOpts.split(" ");
// Add java.library.path; necessary for loading native libraries.
//
// 1. To support native-hadoop library i.e. libhadoop.so, we add the
// parent processes' java.library.path to the child.
// 2. We also add the 'cwd' of the task to it's java.library.path to help
// users distribute native libraries via the DistributedCache.
// 3. The user can also specify extra paths to be added to the
// java.library.path via mapred.child.java.opts.
//
String libraryPath = System.getProperty("java.library.path");
if (libraryPath == null) {
libraryPath = workDir.getAbsolutePath();
} else {
libraryPath += sep + workDir;
}
boolean hasUserLDPath = false;
for (int i = 0; i < javaOptsSplit.length; i++) {
if (javaOptsSplit[i].startsWith("-Djava.library.path=")) {
javaOptsSplit[i] += sep + libraryPath;
hasUserLDPath = true;
break;
}
}
if (!hasUserLDPath) {
vargs.add("-Djava.library.path=" + libraryPath);
}
for (int i = 0; i < javaOptsSplit.length; i++) {
vargs.add(javaOptsSplit[i]);
}
// add java.io.tmpdir given by mapred.child.tmp
String tmp = conf.get("mapred.child.tmp", "./tmp");
Path tmpDir = new Path(tmp);
// if temp directory path is not absolute
// prepend it with workDir.
if (!tmpDir.isAbsolute()) {
tmpDir = new Path(workDir.toString(), tmp);
}
FileSystem localFs = FileSystem.getLocal(conf);
if (!localFs.mkdirs(tmpDir) && !localFs.getFileStatus(tmpDir).isDir()) {
throw new IOException("Mkdirs failed to create " + tmpDir.toString());
}
vargs.add("-Djava.io.tmpdir=" + tmpDir.toString());
// Add classpath.
vargs.add("-classpath");
vargs.add(classPath.toString());
// Setup the log4j prop
long logSize = TaskLog.getTaskLogLength(conf);
vargs.add(
"-Dhadoop.log.dir=" + new File(System.getProperty("hadoop.log.dir")).getAbsolutePath());
vargs.add("-Dhadoop.root.logger=INFO,TLA");
vargs.add("-Dhadoop.tasklog.taskid=" + taskid);
vargs.add("-Dhadoop.tasklog.totalLogFileSize=" + logSize);
if (conf.getProfileEnabled()) {
if (conf.getProfileTaskRange(t.isMapTask()).isIncluded(t.getPartition())) {
File prof = TaskLog.getTaskLogFile(taskid, TaskLog.LogName.PROFILE);
vargs.add(String.format(conf.getProfileParams(), prof.toString()));
}
}
// Add main class and its arguments
vargs.add(Child.class.getName()); // main of Child
// pass umbilical address
InetSocketAddress address = tracker.getTaskTrackerReportAddress();
vargs.add(address.getAddress().getHostAddress());
vargs.add(Integer.toString(address.getPort()));
vargs.add(taskid.toString()); // pass task identifier
String pidFile = null;
if (tracker.isTaskMemoryManagerEnabled()) {
pidFile =
lDirAlloc
.getLocalPathForWrite(
(TaskTracker.getPidFilesSubdir() + Path.SEPARATOR + taskid), this.conf)
.toString();
}
// set memory limit using ulimit if feasible and necessary ...
String[] ulimitCmd = Shell.getUlimitMemoryCommand(conf);
List<String> setup = null;
if (ulimitCmd != null) {
setup = new ArrayList<String>();
for (String arg : ulimitCmd) {
setup.add(arg);
}
}
// Set up the redirection of the task's stdout and stderr streams
File stdout = TaskLog.getTaskLogFile(taskid, TaskLog.LogName.STDOUT);
File stderr = TaskLog.getTaskLogFile(taskid, TaskLog.LogName.STDERR);
stdout.getParentFile().mkdirs();
tracker.getTaskTrackerInstrumentation().reportTaskLaunch(taskid, stdout, stderr);
Map<String, String> env = new HashMap<String, String>();
StringBuffer ldLibraryPath = new StringBuffer();
ldLibraryPath.append(workDir.toString());
String oldLdLibraryPath = null;
oldLdLibraryPath = System.getenv("LD_LIBRARY_PATH");
if (oldLdLibraryPath != null) {
ldLibraryPath.append(sep);
ldLibraryPath.append(oldLdLibraryPath);
}
env.put("LD_LIBRARY_PATH", ldLibraryPath.toString());
jvmManager.launchJvm(
this,
jvmManager.constructJvmEnv(
setup, vargs, stdout, stderr, logSize, workDir, env, pidFile, conf));
synchronized (lock) {
while (!done) {
lock.wait();
}
}
tracker.getTaskTrackerInstrumentation().reportTaskEnd(t.getTaskID());
if (exitCodeSet) {
if (!killed && exitCode != 0) {
if (exitCode == 65) {
tracker.getTaskTrackerInstrumentation().taskFailedPing(t.getTaskID());
}
throw new IOException("Task process exit with nonzero status of " + exitCode + ".");
}
}
} catch (FSError e) {
LOG.fatal("FSError", e);
try {
tracker.fsError(t.getTaskID(), e.getMessage());
} catch (IOException ie) {
LOG.fatal(t.getTaskID() + " reporting FSError", ie);
}
} catch (Throwable throwable) {
LOG.warn(t.getTaskID() + " Child Error", throwable);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
throwable.printStackTrace(new PrintStream(baos));
try {
tracker.reportDiagnosticInfo(t.getTaskID(), baos.toString());
} catch (IOException e) {
LOG.warn(t.getTaskID() + " Reporting Diagnostics", e);
}
} finally {
try {
URI[] archives = DistributedCache.getCacheArchives(conf);
URI[] files = DistributedCache.getCacheFiles(conf);
if (archives != null) {
for (int i = 0; i < archives.length; i++) {
DistributedCache.releaseCache(archives[i], conf);
}
}
if (files != null) {
for (int i = 0; i < files.length; i++) {
DistributedCache.releaseCache(files[i], conf);
}
}
} catch (IOException ie) {
LOG.warn("Error releasing caches : Cache files might not have been cleaned up");
}
tracker.reportTaskFinished(t.getTaskID(), false);
if (t.isMapTask()) {
tracker.addFreeMapSlot();
} else {
tracker.addFreeReduceSlot();
}
}
}
// Mostly for setting up the symlinks. Note that when we setup the distributed
// cache, we didn't create the symlinks. This is done on a per task basis
// by the currently executing task.
public static void setupWorkDir(JobConf conf) throws IOException {
File workDir = new File(".").getAbsoluteFile();
FileUtil.fullyDelete(workDir);
if (DistributedCache.getSymlink(conf)) {
URI[] archives = DistributedCache.getCacheArchives(conf);
URI[] files = DistributedCache.getCacheFiles(conf);
Path[] localArchives = DistributedCache.getLocalCacheArchives(conf);
Path[] localFiles = DistributedCache.getLocalCacheFiles(conf);
if (archives != null) {
for (int i = 0; i < archives.length; i++) {
String link = archives[i].getFragment();
if (link != null) {
link = workDir.toString() + Path.SEPARATOR + link;
File flink = new File(link);
if (!flink.exists()) {
FileUtil.symLink(localArchives[i].toString(), link);
}
}
}
}
if (files != null) {
for (int i = 0; i < files.length; i++) {
String link = files[i].getFragment();
if (link != null) {
link = workDir.toString() + Path.SEPARATOR + link;
File flink = new File(link);
if (!flink.exists()) {
FileUtil.symLink(localFiles[i].toString(), link);
}
}
}
}
}
File jobCacheDir = null;
if (conf.getJar() != null) {
jobCacheDir = new File(new Path(conf.getJar()).getParent().toString());
}
// create symlinks for all the files in job cache dir in current
// workingdir for streaming
try {
DistributedCache.createAllSymlink(conf, jobCacheDir, workDir);
} catch (IOException ie) {
// Do not exit even if symlinks have not been created.
LOG.warn(StringUtils.stringifyException(ie));
}
// add java.io.tmpdir given by mapred.child.tmp
String tmp = conf.get("mapred.child.tmp", "./tmp");
Path tmpDir = new Path(tmp);
// if temp directory path is not absolute
// prepend it with workDir.
if (!tmpDir.isAbsolute()) {
tmpDir = new Path(workDir.toString(), tmp);
FileSystem localFs = FileSystem.getLocal(conf);
if (!localFs.mkdirs(tmpDir) && !localFs.getFileStatus(tmpDir).isDir()) {
throw new IOException("Mkdirs failed to create " + tmpDir.toString());
}
}
}
/** Kill the child process */
public void kill() {
killed = true;
jvmManager.taskKilled(this);
signalDone();
}
public void signalDone() {
synchronized (lock) {
done = true;
lock.notify();
}
}
public void setExitCode(int exitCode) {
this.exitCodeSet = true;
this.exitCode = exitCode;
}
}
/**
* Created with IntelliJ IDEA. User: ciobi Date: 2013-06-15 Time: 09:56
*
* <p>
*/
public class ReaderHandler extends WebAppContext {
public static final Log LOG = LogFactory.getLog(ReaderHandler.class);
// ttt1 option that on http only redirects to https, for all paths
public static final String ACTION_LOGIN = "******";
public static final String ACTION_SIGNUP = "signup";
public static final String ACTION_CHANGE_PASSWORD = "******";
public static final String ACTION_CHANGE_SETTINGS = "change_settings";
public static final String ACTION_ADD_FEED = "add_feed";
public static final String ACTION_REMOVE_FEED = "remove_feed";
public static final String ACTION_UPDATE_FEED_LIST = "update_feed_list"; // for ordering, //ttt2
public static final String PATH_LOGIN = "******" + ACTION_LOGIN;
public static final String PATH_CHANGE_PASSWORD = "******" + ACTION_CHANGE_PASSWORD;
public static final String PATH_CHANGE_SETTINGS = "/" + ACTION_CHANGE_SETTINGS;
public static final String PATH_SIGNUP = "/" + ACTION_SIGNUP;
public static final String PATH_ADD_FEED = "/" + ACTION_ADD_FEED;
public static final String PATH_REMOVE_FEED = "/" + ACTION_REMOVE_FEED;
public static final String PATH_UPDATE_FEED_LIST = "/" + ACTION_UPDATE_FEED_LIST;
public static final String PATH_ERROR = "/error";
public static final String PATH_LOGOUT = "/logout";
public static final String PATH_SETTINGS = "/settings";
public static final String PATH_FEEDS = "/feeds";
public static final String PATH_FEED = "/feed";
public static final String PATH_ADMIN = "/admin";
public static final String PATH_FEED_ADMIN = "/feed_admin";
public static final String PATH_OPEN_ARTICLE =
"/open_article/"; // !!! it's easier to end this one with a slash
// params we use to send strings to the JSPs or to get user input in POST, via
// request.getParameter(), or both
public static final String PARAM_USER_ID = "userId";
public static final String PARAM_USER_NAME = "name";
public static final String PARAM_EMAIL = "email";
public static final String PARAM_CURRENT_PASSWORD = "******";
public static final String PARAM_PASSWORD = "******";
public static final String PARAM_PASSWORD_CONFIRM = "passwordConfirm";
public static final String PARAM_PATH = "path";
// public static final String PARAM_ERROR = "error";
public static final String PARAM_REMEMBER_ACCOUNT = "rememberAccount";
public static final String PARAM_NEW_FEED_URL = "feedUrl";
public static final String PARAM_FEED_ID = "feedId";
public static final String PARAM_ITEMS_PER_PAGE = "itemsPerPage";
public static final String PARAM_STYLE = "style";
public static final String PARAM_FEED_DATE_FORMAT = "feedDateFormat";
// variable names, used to give JSPs access to Java objects in the handler via
// request.getAttribute(()
public static final String VAR_USER = "******";
public static final String VAR_LOGIN_INFO = "loginInfo";
public static final String VAR_USER_DB = "userDb";
public static final String VAR_FEED_DB = "feedDb";
public static final String VAR_ARTICLE_DB = "articleDb";
public static final String VAR_READ_ARTICLES_COLL_DB = "readArticlesCollDb";
public static final String BROWSER_ID = "browserId";
public static final String SESSION_ID = "sessionId";
private LoginInfo.DB loginInfoDb;
private User.DB userDb;
private Feed.DB feedDb;
private Article.DB articleDb;
private ReadArticlesColl.DB readArticlesCollDb;
private UserHelpers userHelpers;
private boolean isInJar = Utils.isInJar();
private static class ReaderErrorHandler extends ErrorHandler {
@Override // !!! note that this gets called for missing pages, but not if exceptions are thrown;
// exceptions are handled separately
public void handle(
String target,
Request request,
HttpServletRequest httpServletRequest,
HttpServletResponse httpServletResponse)
throws IOException {
request.setHandled(true);
httpServletResponse
.getWriter()
.println(
String.format("<h1>Page doesn't exist: %s</h1>", request.getUri().getDecodedPath()));
}
}
private static HashMap<String, String> PATH_MAPPING = new HashMap<>();
static {
PATH_MAPPING.put("", "home_page");
PATH_MAPPING.put(PATH_LOGIN, "login");
PATH_MAPPING.put(PATH_LOGOUT, "login"); // !!! after logout we get redirected to /login
PATH_MAPPING.put(PATH_SIGNUP, "signup");
PATH_MAPPING.put(PATH_ERROR, "error");
PATH_MAPPING.put(PATH_FEED_ADMIN, "feed_admin");
PATH_MAPPING.put(PATH_SETTINGS, "settings");
PATH_MAPPING.put(PATH_FEEDS, "feeds");
PATH_MAPPING.put(PATH_FEED + "/*", "feed");
PATH_MAPPING.put(PATH_ADMIN, "admin");
}
public ReaderHandler(LowLevelDbAccess lowLevelDbAccess, String webDir) {
loginInfoDb = new LoginInfo.DB(lowLevelDbAccess);
userDb = new User.DB(lowLevelDbAccess);
feedDb = new Feed.DB(lowLevelDbAccess);
articleDb = new Article.DB(lowLevelDbAccess);
readArticlesCollDb = new ReadArticlesColl.DB(lowLevelDbAccess);
userHelpers = new UserHelpers(loginInfoDb, userDb);
setContextPath("/");
File warPath = new File(webDir);
setWar(warPath.getAbsolutePath());
if (isInJar) {
for (Map.Entry<String, String> entry : PATH_MAPPING.entrySet()) {
addPrebuiltJsp(entry.getKey(), "jsp." + entry.getValue().replaceAll("_", "_005f") + "_jsp");
}
} else {
for (Map.Entry<String, String> entry : PATH_MAPPING.entrySet()) {
addServlet(
new ServletHolder(new RedirectServlet("/" + entry.getValue() + ".jsp")),
entry.getKey());
}
}
setErrorHandler(new ReaderErrorHandler());
}
private void addPrebuiltJsp(String path, String className) {
try {
Class clazz =
Class.forName(
className); // ttt2 see if possible to not use this, preferably without doing
// redirections like RedirectServlet
Object obj = clazz.newInstance();
addServlet(new ServletHolder((Servlet) obj), path);
LOG.info("Added prebuilt JSP: " + obj.toString());
} catch (Exception e) {
LOG.fatal(String.format("Failed to load prebuilt JSP for %s and %s", path, className), e);
}
}
@Override
public void doHandle(
String target,
Request request,
HttpServletRequest httpServletRequest,
HttpServletResponse httpServletResponse)
throws IOException, ServletException {
LOG.info("handling " + target);
// !!! doHandle() is called twice for a request when using redirectiion, first time with
// request.getPathInfo()
// set to the URI and target set to the path, then with request.getPathInfo() set to null and
// target set to the .jsp
try {
// request.setHandled(true);
boolean secured;
if (request.getScheme().equals("https")) {
secured = true;
} else if (request.getScheme().equals("http")) {
secured = false;
} else {
httpServletResponse
.getWriter()
.println(
String.format(
"<h1>Unknown scheme %s at %s</h1>",
request.getScheme(), request.getUri().getDecodedPath()));
return;
}
if (request.getMethod().equals("GET")) {
if (isInJar || target.endsWith(".jsp")) {
// !!! when not in jar there's no need to do anything about params if it's not a .jsp,
// as this will get called again for the corresponding .jsp
if (prepareForJspGet(target, request, httpServletResponse, secured)) {
return;
}
}
if (target.startsWith(PATH_OPEN_ARTICLE)) {
handleOpenArticle(request, httpServletResponse, target);
return;
}
super.doHandle(target, request, httpServletRequest, httpServletResponse);
LOG.info("handling of " + target + " went to super");
// httpServletResponse.setDateHeader("Date", System.currentTimeMillis()); //ttt2 review
// these, probably not use
// httpServletResponse.setDateHeader("Expires", System.currentTimeMillis() + 60000);
return;
}
if (request.getMethod().equals("POST")) {
if (request.getUri().getDecodedPath().equals(PATH_LOGIN)) {
handleLoginPost(request, httpServletResponse, secured);
} else if (request.getUri().getDecodedPath().equals(PATH_SIGNUP)) {
handleSignupPost(request, httpServletResponse);
} else if (request.getUri().getDecodedPath().equals(PATH_CHANGE_PASSWORD)) {
handleChangePasswordPost(request, httpServletResponse);
} else if (request.getUri().getDecodedPath().equals(PATH_UPDATE_FEED_LIST)) {
handleUpdateFeedListPost(request, httpServletResponse);
} else if (request.getUri().getDecodedPath().equals(PATH_ADD_FEED)) {
handleAddFeedPost(request, httpServletResponse);
} else if (request.getUri().getDecodedPath().equals(PATH_REMOVE_FEED)) {
handleRemoveFeedPost(request, httpServletResponse);
} else if (request.getUri().getDecodedPath().equals(PATH_CHANGE_SETTINGS)) {
handleChangeSettingsPost(request, httpServletResponse);
}
}
/*{ // for tests only;
httpServletResponse.getWriter().println(String.format("<h1>Unable to process request %s</h1>",
request.getUri().getDecodedPath()));
request.setHandled(true);
}*/
} catch (Exception e) {
LOG.error("Error processing request", e);
try {
// redirectToError(e.toString(), request, httpServletResponse); //!!! redirectToError leads
// to infinite loop, probably related to
// the fact that we get 2 calls for a regular request when redirecting
httpServletResponse
.getWriter()
.println(
String.format(
"<h1>Unable to process request %s</h1>", // ttt1 generate some HTML
request.getUri().getDecodedPath()));
request.setHandled(true);
} catch (Exception e1) {
LOG.error("Error redirecting", e1);
}
}
}
/**
* Normally sets the path and a few attributes that the JSPs are likely to need. Also verifies the
* login information. If necessary, just redirects to the login page.
*
* @param target
* @param request
* @param httpServletResponse
* @param secured
* @return true if the request is already handled so the .jsp shouldn't get called
* @throws Exception
*/
private boolean prepareForJspGet(
String target, Request request, HttpServletResponse httpServletResponse, boolean secured)
throws Exception {
LoginInfo.SessionInfo sessionInfo = UserHelpers.getSessionInfo(request);
LOG.info(
String.format(
"hndl - %s ; %s; %s ; %s",
target,
request.getPathInfo(),
request.getMethod(),
secured ? "secured" : "not secured"));
String path = request.getUri().getDecodedPath();
boolean redirectToLogin = path.equals(PATH_LOGOUT);
LoginInfo loginInfo = null;
if (sessionInfo.isNull()) {
redirectToLogin = true;
LOG.info("Null session info. Logging in again.");
} else {
loginInfo =
loginInfoDb.get(
sessionInfo.browserId,
sessionInfo.sessionId); // ttt2 use a cache, to avoid going to DB
if (loginInfo == null || loginInfo.expiresOn < System.currentTimeMillis()) {
LOG.info("Session has expired. Logging in again. Info: " + loginInfo);
redirectToLogin = true;
}
}
if (!path.equals(PATH_LOGIN) && !path.equals(PATH_SIGNUP) && !path.equals(PATH_ERROR)) {
if (redirectToLogin) {
// ttt2 perhaps store URI, to return to it after login
logOut(sessionInfo.browserId);
addLoginParams(request, loginInfo);
httpServletResponse.sendRedirect(PATH_LOGIN);
return true;
}
User user = userDb.get(loginInfo.userId);
if (user == null) {
WebUtils.redirectToError("Unknown user", request, httpServletResponse);
return true;
}
if (!user.active) {
WebUtils.redirectToError("Account is not active", request, httpServletResponse);
return true;
}
request.setAttribute(VAR_FEED_DB, feedDb);
request.setAttribute(VAR_USER_DB, userDb);
request.setAttribute(VAR_ARTICLE_DB, articleDb);
request.setAttribute(VAR_READ_ARTICLES_COLL_DB, readArticlesCollDb);
request.setAttribute(VAR_USER, user);
request.setAttribute(VAR_LOGIN_INFO, loginInfo);
MultiMap<String> params = new MultiMap<>();
params.put(PARAM_PATH, path);
request.setParameters(params);
}
if (path.equals(PATH_LOGIN)) {
addLoginParams(request, loginInfo);
}
return false;
}
private void handleOpenArticle(
Request request, HttpServletResponse httpServletResponse, String target) throws Exception {
try {
int k1 = target.indexOf('/', 1);
int k2 = target.indexOf('/', k1 + 1);
String feedId = target.substring(k1 + 1, k2);
String strSeq = target.substring(k2 + 1);
int seq = Integer.parseInt(strSeq);
Article article = articleDb.get(feedId, seq);
LoginInfo loginInfo = userHelpers.getLoginInfo(request);
// ttt2 using the link from a non-authenticated browser causes a NPE; maybe do something
// better, e.g. sign up
ReadArticlesColl readArticlesColl = readArticlesCollDb.get(loginInfo.userId, feedId);
if (readArticlesColl == null) {
readArticlesColl = new ReadArticlesColl(loginInfo.userId, feedId);
}
if (!readArticlesColl.isRead(seq)) {
readArticlesColl.markRead(seq, Config.getConfig().maxSizeForReadArticles);
readArticlesCollDb.add(readArticlesColl);
}
String s =
URIUtil.encodePath(article.url)
.replace("%3F", "?")
.replace("%23", "#"); // ttt2 see how to do this right
httpServletResponse.sendRedirect(s);
} catch (Exception e) {
WebUtils.showResult(
String.format("Failed to get article for path %s. %s", target, e),
"/",
request,
httpServletResponse);
}
}
private void handleSignupPost(Request request, HttpServletResponse httpServletResponse)
throws Exception {
String userId = request.getParameter(PARAM_USER_ID);
String userName = request.getParameter(PARAM_USER_NAME);
String email = request.getParameter(PARAM_EMAIL);
String stringPassword = request.getParameter(PARAM_PASSWORD);
String stringPasswordConfirm = request.getParameter(PARAM_PASSWORD_CONFIRM);
if (!stringPassword.equals(stringPasswordConfirm)) {
WebUtils.redirectToError(
"Mismatch between password and password confirmation", request, httpServletResponse);
return;
}
SecureRandom secureRandom = new SecureRandom();
String salt = "" + secureRandom.nextLong();
byte[] password = User.computeHashedPassword(stringPassword, salt);
User user = userDb.get(userId);
if (user != null) {
WebUtils.redirectToError(
"There already exists a user with the ID " + userId, request, httpServletResponse);
return;
}
user =
new User(
userId,
userName,
password,
salt,
email,
new ArrayList<String>(),
Config.getConfig().activateAccountsAtCreation,
false);
// ttt2 add confirmation by email, captcha, ...
List<String> fieldErrors = user.checkFields();
if (!fieldErrors.isEmpty()) {
StringBuilder bld =
new StringBuilder("Invalid values when trying to create user with ID ")
.append(userId)
.append("<br/>");
for (String s : fieldErrors) {
bld.append(s).append("<br/>");
}
WebUtils.redirectToError(bld.toString(), request, httpServletResponse);
return;
}
// ttt2 2 clients can add the same userId simultaneously
userDb.add(user);
httpServletResponse.sendRedirect("/");
}
private void handleChangePasswordPost(Request request, HttpServletResponse httpServletResponse)
throws Exception {
LoginInfo loginInfo = userHelpers.getLoginInfo(request);
if (loginInfo == null) {
WebUtils.redirectToError("Couldn't determine the current user", request, httpServletResponse);
return;
}
String userId = loginInfo.userId;
String stringCrtPassword = request.getParameter(PARAM_CURRENT_PASSWORD);
String stringNewPassword = request.getParameter(PARAM_PASSWORD);
String stringNewPasswordConfirm = request.getParameter(PARAM_PASSWORD_CONFIRM);
if (!stringNewPassword.equals(stringNewPasswordConfirm)) {
showResult(
"Mismatch between password and password confirmation",
PATH_SETTINGS,
request,
httpServletResponse);
return;
}
User user =
userDb.get(
userId); // ttt1 crashes for wrong ID; 2013.07.20 - no longer have an idea what this is
// about
if (user == null) {
WebUtils.redirectToError("Couldn't find the current user", request, httpServletResponse);
return;
}
if (!user.checkPassword(stringCrtPassword)) {
showResult("Incorrect current password", PATH_SETTINGS, request, httpServletResponse);
return;
}
SecureRandom secureRandom = new SecureRandom();
String salt = "" + secureRandom.nextLong();
byte[] password = User.computeHashedPassword(stringNewPassword, salt);
user.salt = salt;
user.password = password;
// ttt3 2 clients can change the password simultaneously
userDb.add(user);
// httpServletResponse.sendRedirect(PATH_SETTINGS);
showResult("Password changed", PATH_SETTINGS, request, httpServletResponse);
}
private void handleChangeSettingsPost(Request request, HttpServletResponse httpServletResponse)
throws Exception {
LoginInfo loginInfo = userHelpers.getLoginInfo(request);
if (loginInfo == null) {
WebUtils.redirectToError("Couldn't determine the current user", request, httpServletResponse);
return;
}
String stringItemsPerPage = request.getParameter(PARAM_ITEMS_PER_PAGE);
try {
loginInfo.itemsPerPage = Integer.parseInt(stringItemsPerPage);
} catch (Exception e) {
showResult(
"Error trying to set the items per page. Expected integer value but got "
+ stringItemsPerPage,
PATH_SETTINGS,
request,
httpServletResponse);
return;
}
loginInfo.style = request.getParameter(PARAM_STYLE);
loginInfo.feedDateFormat =
request.getParameter(PARAM_FEED_DATE_FORMAT); // ttt2 validate, better in JSP
loginInfoDb.add(loginInfo);
// httpServletResponse.sendRedirect(PATH_SETTINGS);
showResult("Settings changed", "/", request, httpServletResponse);
}
private void handleUpdateFeedListPost(Request request, HttpServletResponse httpServletResponse)
throws Exception {
LOG.info("updating feed list"); // ttt2 implement
httpServletResponse.sendRedirect(PATH_FEED_ADMIN);
}
private void handleAddFeedPost(Request request, HttpServletResponse httpServletResponse)
throws Exception {
LOG.info("adding feed");
User user = userHelpers.getUser(request);
try {
if (user == null) {
LOG.error("User not found");
return;
}
String url = request.getParameter(PARAM_NEW_FEED_URL);
// ttt1 add some validation; probably best try to actually get data, set the title, ...
if (url == null || url.equals("")) {
LOG.error("New feed not specified");
// ttt1 show some error
return;
}
MessageDigest digest = MessageDigest.getInstance("MD5");
String feedId = PrintUtils.byteArrayAsUrlString(digest.digest(url.getBytes("UTF-8")));
feedId = feedId.substring(0, Config.getConfig().feedIdSize);
Feed feed = feedDb.get(feedId);
if (feed == null) {
feed = new Feed(feedId, url);
feedDb.add(feed);
}
if (user.feedIds.contains(feedId)) {
LOG.error(String.format("Trying to add existing feed %s to user %s", feedId, user));
} else {
user.feedIds.add(feedId);
userDb.updateFeeds(user);
}
} finally {
httpServletResponse.sendRedirect(PATH_FEED_ADMIN);
}
}
private void handleRemoveFeedPost(Request request, HttpServletResponse httpServletResponse)
throws Exception {
LOG.info("removing feed");
User user = userHelpers.getUser(request);
try {
if (user == null) {
LOG.error("User not found");
return;
}
String feedId = request.getParameter(PARAM_FEED_ID);
LOG.info(String.format("Removing feed %s for user %s", feedId, user));
// ttt1 add some validation; probably best try to actually get data, set the title, ...
if (feedId == null || feedId.equals("")) {
LOG.error("feed not specified");
// ttt1 show some error
return;
}
if (user.feedIds.remove(
feedId)) { // ttt2 clean up the global feed table; that's probably better done if nobody
// accesses a feed for 3 months or so
userDb.updateFeeds(user);
LOG.info(String.format("Removed feed %s for user %s", feedId, user));
} else {
LOG.info(String.format("No feed found with ID %s for user %s", feedId, user));
}
} finally {
httpServletResponse.sendRedirect(PATH_FEED_ADMIN);
}
}
private void handleLoginPost(
Request request, HttpServletResponse httpServletResponse, boolean secured) throws Exception {
String userId = request.getParameter(PARAM_USER_ID);
String password = request.getParameter(PARAM_PASSWORD);
String rememberAccountStr = request.getParameter(PARAM_REMEMBER_ACCOUNT);
boolean rememberAccount = Boolean.parseBoolean(rememberAccountStr);
LoginInfo.SessionInfo sessionInfo = UserHelpers.getSessionInfo(request);
logOut(sessionInfo.browserId);
User user = userDb.get(userId);
if (user == null) {
WebUtils.redirectToError("User " + userId + " not found", request, httpServletResponse);
return;
}
if (!user.checkPassword(password)) {
WebUtils.redirectToError("Invalid password", request, httpServletResponse);
return;
}
if (!user.active) {
WebUtils.redirectToError(
"Account for User " + userId + " needs to be activated", request, httpServletResponse);
return;
}
LOG.info("Logged in user " + userId);
sessionInfo.sessionId = null;
if (sessionInfo.browserId == null) {
sessionInfo.browserId = getRandomId();
} else {
for (LoginInfo loginInfo : loginInfoDb.getLoginsForBrowser(sessionInfo.browserId)) {
if (userId.equals(loginInfo.userId)) {
sessionInfo.sessionId = loginInfo.sessionId;
break;
}
}
}
long expireOn = System.currentTimeMillis() + Config.getConfig().loginExpireInterval;
if (sessionInfo.sessionId == null) {
sessionInfo.sessionId = getRandomId();
Config config = Config.getConfig();
loginInfoDb.add(
new LoginInfo(
sessionInfo.browserId,
sessionInfo.sessionId,
userId,
expireOn,
rememberAccount,
config.defaultStyle,
config.defaultItemsPerPage,
config.defaultFeedDateFormat));
LOG.info(String.format("Logging in in a new session. User: %s", user));
} else {
loginInfoDb.updateExpireTime(sessionInfo.browserId, sessionInfo.sessionId, expireOn);
LOG.info(String.format("Logging in in an existing session. User: %s", user));
}
WebUtils.saveCookies(
httpServletResponse, secured, sessionInfo.browserId, sessionInfo.sessionId);
httpServletResponse.sendRedirect("/");
}
private String getRandomId() {
SecureRandom secureRandom = new SecureRandom();
return "" + secureRandom.nextLong();
}
private void addLoginParams(Request request, LoginInfo loginInfo) {
MultiMap<String> params = new MultiMap<>();
if (loginInfo != null && loginInfo.rememberAccount) {
params.put(PARAM_USER_ID, loginInfo.userId);
}
request.setParameters(params);
}
private void logOut(String browserId) throws Exception {
// ttt2 the right way to do it is to go through all the sessions of the current browser, which
// would require a new field and a new index;
// not sure if it's worth it, but this would work: A logs in, forgets to log out, B delets the
// cookies, logs in, A sees B is logged in, then B
// restores the cookies and uses A's account
if (browserId == null) {
return;
}
List<LoginInfo> loginInfos = loginInfoDb.getLoginsForBrowser(browserId);
long expireTarget = System.currentTimeMillis() - Utils.ONE_DAY;
for (LoginInfo loginInfo : loginInfos) {
if (loginInfo.expiresOn <= expireTarget) {
LOG.info(String.format("LoginInfo %s is enough in the past", loginInfo));
} else {
LOG.info(String.format("Logging out: %s", loginInfo));
loginInfoDb.updateExpireTime(browserId, loginInfo.sessionId, expireTarget);
}
}
}
public static class FeedInfo {
public String feedId;
public int maxSeq;
public FeedInfo(String feedId, int maxSeq) {
this.feedId = feedId;
this.maxSeq = maxSeq;
}
}
// !!! IDEA reports this as unused, but it is called from JSP
public static FeedInfo getFeedInfo(String feedPath) {
if (feedPath.startsWith(PATH_FEED + "/")) {
try {
if (feedPath.endsWith("/")) {
feedPath = feedPath.substring(0, feedPath.length() - 1);
}
int k = PATH_FEED.length() + 1;
int p = feedPath.indexOf('/', k);
return p >= 0
? new FeedInfo(feedPath.substring(k, p), Integer.parseInt(feedPath.substring(p + 1)))
: new FeedInfo(feedPath.substring(k), -1);
} catch (Exception e) {
LOG.error("Exception trying to parse the feed info", e);
}
}
LOG.error("Invalid path from feed: " + feedPath);
return new FeedInfo("INVALID", -1);
}
// !!! IDEA reports this as unused, but it is called from JSP
public static String getStyle(LoginInfo loginInfo) {
StringBuilder bld = new StringBuilder();
bld.append("<style media=\"screen\" type=\"text/css\">\n\n");
if (loginInfo == null) {
bld.append(Config.getConfig().defaultStyle);
} else {
bld.append(loginInfo.style); // ttt3 detect broken styles and return default
}
bld.append("</style>\n");
return bld.toString();
}
/* private void jspCodeCheck() throws Exception {
Article.DB articleDb;
Request request;
String path = "";
String feedId = ReaderHandler.getFeedId(path);
int maxSeq = ReaderHandler.getSeq(path);
Feed.DB feedDb = (Feed.DB)request.getAttribute(ReaderHandler.VAR_FEED_DB);
Feed feed = feedDb.get(feedId);
if (feed == null) {
out.println("Feed " + feedId + " not found");
} else {
if (maxSeq == -1) {
maxSeq = feed.maxSeq;
}
if (maxSeq < 0) {
out.println("Feed " + feedId + " is empty");
} else {
++maxSeq;
LoginInfo loginInfo = (LoginInfo)request.getAttribute(ReaderHandler.VAR_LOGIN_INFO);
int minSeq = Math.max(maxSeq - loginInfo.itemsPerPage, 0);
List<Article> articles = articleDb.get(feedId, minSeq, maxSeq);
for (Article article : articles) {
out.println("<a href=\"" + article.url + "\">" + article.title + "</a><br/>");
}
}
}
}
//*/
}
public class IdentitySchema {
private static final String IDENTITY_TABLE_PREFIX = "JBPM_ID_";
Configuration configuration = null;
Properties properties = null;
Dialect dialect = null;
Mapping mapping = null;
String[] createSql = null;
String[] dropSql = null;
String[] cleanSql = null;
ConnectionProvider connectionProvider = null;
Connection connection = null;
Statement statement = null;
public IdentitySchema(Configuration configuration) {
this.configuration = configuration;
this.properties = configuration.getProperties();
this.dialect = Dialect.getDialect(properties);
try {
// get the mapping field via reflection :-(
Field mappingField = Configuration.class.getDeclaredField("mapping");
mappingField.setAccessible(true);
this.mapping = (Mapping) mappingField.get(configuration);
} catch (Exception e) {
throw new RuntimeException("couldn't get the hibernate mapping", e);
}
}
// scripts lazy initializations /////////////////////////////////////////////
public String[] getCreateSql() {
if (createSql == null) {
createSql = configuration.generateSchemaCreationScript(dialect);
}
return createSql;
}
public String[] getDropSql() {
if (dropSql == null) {
dropSql = configuration.generateDropSchemaScript(dialect);
}
return dropSql;
}
public String[] getCleanSql() {
if (cleanSql == null) {
// loop over all foreign key constraints
List dropForeignKeysSql = new ArrayList();
List createForeignKeysSql = new ArrayList();
Iterator iter = configuration.getTableMappings();
while (iter.hasNext()) {
Table table = (Table) iter.next();
if (table.isPhysicalTable()) {
Iterator subIter = table.getForeignKeyIterator();
while (subIter.hasNext()) {
ForeignKey fk = (ForeignKey) subIter.next();
if (fk.isPhysicalConstraint()) {
// collect the drop key constraint
dropForeignKeysSql.add(
fk.sqlDropString(
dialect,
properties.getProperty(Environment.DEFAULT_CATALOG),
properties.getProperty(Environment.DEFAULT_SCHEMA)));
createForeignKeysSql.add(
fk.sqlCreateString(
dialect,
mapping,
properties.getProperty(Environment.DEFAULT_CATALOG),
properties.getProperty(Environment.DEFAULT_SCHEMA)));
}
}
}
}
List deleteSql = new ArrayList();
iter = configuration.getTableMappings();
while (iter.hasNext()) {
Table table = (Table) iter.next();
deleteSql.add("delete from " + table.getName());
}
List cleanSqlList = new ArrayList();
cleanSqlList.addAll(dropForeignKeysSql);
cleanSqlList.addAll(deleteSql);
cleanSqlList.addAll(createForeignKeysSql);
cleanSql = (String[]) cleanSqlList.toArray(new String[cleanSqlList.size()]);
}
return cleanSql;
}
// runtime table detection //////////////////////////////////////////////////
public boolean hasIdentityTables() {
return (getIdentityTables().size() > 0);
}
public List getIdentityTables() {
// delete all the data in the jbpm tables
List jbpmTableNames = new ArrayList();
try {
createConnection();
ResultSet resultSet = connection.getMetaData().getTables("", "", null, null);
while (resultSet.next()) {
String tableName = resultSet.getString("TABLE_NAME");
if ((tableName != null)
&& (tableName.length() > 5)
&& (IDENTITY_TABLE_PREFIX.equalsIgnoreCase(tableName.substring(0, 5)))) {
jbpmTableNames.add(tableName);
}
}
} catch (SQLException e) {
throw new RuntimeException("couldn't get the jbpm table names");
} finally {
closeConnection();
}
return jbpmTableNames;
}
// script execution methods /////////////////////////////////////////////////
public void dropSchema() {
execute(getDropSql());
}
public void createSchema() {
execute(getCreateSql());
}
public void cleanSchema() {
execute(getCleanSql());
}
public void saveSqlScripts(String dir, String prefix) {
try {
new File(dir).mkdirs();
saveSqlScript(dir + "/" + prefix + ".drop.sql", getDropSql());
saveSqlScript(dir + "/" + prefix + ".create.sql", getCreateSql());
saveSqlScript(dir + "/" + prefix + ".clean.sql", getCleanSql());
new SchemaExport(configuration)
.setDelimiter(getSqlDelimiter())
.setOutputFile(dir + "/" + prefix + ".drop.create.sql")
.create(true, false);
} catch (Exception e) {
throw new RuntimeException("couldn't generate scripts", e);
}
}
// main /////////////////////////////////////////////////////////////////////
public static void main(String[] args) {
try {
if ((args != null) && (args.length == 1) && ("create".equalsIgnoreCase(args[0]))) {
new IdentitySchema(IdentitySessionFactory.createConfiguration()).createSchema();
} else if ((args != null) && (args.length == 1) && ("drop".equalsIgnoreCase(args[0]))) {
new IdentitySchema(IdentitySessionFactory.createConfiguration()).dropSchema();
} else if ((args != null) && (args.length == 1) && ("clean".equalsIgnoreCase(args[0]))) {
new IdentitySchema(IdentitySessionFactory.createConfiguration()).cleanSchema();
} else if ((args != null) && (args.length == 3) && ("scripts".equalsIgnoreCase(args[0]))) {
new IdentitySchema(IdentitySessionFactory.createConfiguration())
.saveSqlScripts(args[1], args[2]);
} else {
System.err.println("syntax: JbpmSchema create");
System.err.println("syntax: JbpmSchema drop");
System.err.println("syntax: JbpmSchema clean");
System.err.println("syntax: JbpmSchema scripts <dir> <prefix>");
}
} catch (Exception e) {
e.printStackTrace();
throw new RuntimeException(e);
}
}
private void saveSqlScript(String fileName, String[] sql) throws FileNotFoundException {
FileOutputStream fileOutputStream = new FileOutputStream(fileName);
PrintStream printStream = new PrintStream(fileOutputStream);
for (int i = 0; i < sql.length; i++) {
printStream.println(sql[i] + getSqlDelimiter());
}
}
// sql script execution /////////////////////////////////////////////////////
public void execute(String[] sqls) {
String sql = null;
String showSqlText = properties.getProperty("hibernate.show_sql");
boolean showSql = ("true".equalsIgnoreCase(showSqlText));
try {
createConnection();
statement = connection.createStatement();
for (int i = 0; i < sqls.length; i++) {
sql = sqls[i];
String delimitedSql = sql + getSqlDelimiter();
if (showSql) log.debug(delimitedSql);
statement.executeUpdate(delimitedSql);
}
} catch (SQLException e) {
e.printStackTrace();
throw new RuntimeException("couldn't execute sql '" + sql + "'", e);
} finally {
closeConnection();
}
}
private void closeConnection() {
try {
if (statement != null) statement.close();
if (connection != null) {
JDBCExceptionReporter.logWarnings(connection.getWarnings());
connection.clearWarnings();
connectionProvider.closeConnection(connection);
connectionProvider.close();
}
} catch (Exception e) {
System.err.println("Could not close connection");
e.printStackTrace();
}
}
private void createConnection() throws SQLException {
connectionProvider = ConnectionProviderFactory.newConnectionProvider(properties);
connection = connectionProvider.getConnection();
if (!connection.getAutoCommit()) {
connection.commit();
connection.setAutoCommit(true);
}
}
public Properties getProperties() {
return properties;
}
// sql delimiter ////////////////////////////////////////////////////////////
private static String sqlDelimiter = null;
private synchronized String getSqlDelimiter() {
if (sqlDelimiter == null) {
sqlDelimiter = properties.getProperty("jbpm.sql.delimiter", ";");
}
return sqlDelimiter;
}
// logger ///////////////////////////////////////////////////////////////////
private static final Log log = LogFactory.getLog(IdentitySchema.class);
}
/**
* MDC Connector
*
* @author yjiang
*/
public abstract class MDCConnector extends IoHandlerAdapter {
static final Log log = LogFactory.getLog(MDCConnector.class);
/** the the max size of a packet, 32KB */
static int MAX_SIZE = MDCServer.MAX_SIZE;
protected Selector selector;
protected IoConnector connector;
protected static Configuration _conf;
protected static boolean inited = false;
/** Close. */
public void close() {
if (selector != null) {
selector.wakeup();
try {
selector.close();
} catch (IOException e1) {
log.warn("close selector fails", e1);
} finally {
selector = null;
}
}
if (connector != null) {
connector.dispose();
connector = null;
}
}
/** Instantiates a new MDC connector. */
protected MDCConnector() {}
/** Inits the. */
public static synchronized void init() {
if (inited) {
return;
}
_conf = Config.getConfig();
/** initialize app command */
Command.init();
/** initialize the RSA key, hardcode 2048 bits */
TConn.pub_key = SystemConfig.s("pub_key", null);
if (TConn.pub_key == null) {
Key k = RSA.generate(2048);
TConn.pri_key = k.pri_key;
TConn.pub_key = k.pub_key;
/** set back in database */
SystemConfig.setConfig("pri_key", TConn.pri_key);
SystemConfig.setConfig("pub_key", TConn.pub_key);
} else {
/** get from the database */
TConn.pri_key = SystemConfig.s("pri_key", null);
}
inited = true;
}
/**
* Service.
*
* @param o the o
* @param session the session
*/
void service(IoBuffer o, IoSession session) {
try {
// System.out.println(o.remaining() + "/" + o.capacity());
session.setAttribute("last", System.currentTimeMillis());
SimpleIoBuffer in = (SimpleIoBuffer) session.getAttribute("buf");
if (in == null) {
in = SimpleIoBuffer.create(4096);
session.setAttribute("buf", in);
}
byte[] data = new byte[o.remaining()];
o.get(data);
in.append(data);
// log.debug("recv: " + data.length + ", " +
// session.getRemoteAddress());
while (in.length() > 5) {
in.mark();
/**
* Byte 1: head of the package<br>
* bit 7-6: "01", indicator of MDC<br>
* bit 5: encrypt indicator, "0": no; "1": encrypted<br>
* bit 4: zip indicator, "0": no, "1": ziped<br>
* bit 0-3: reserved<br>
* Byte 2-5: length of data<br>
* Byte[…]: data array<br>
*/
byte head = in.read();
/** test the head indicator, if not correct close it */
if ((head & 0xC0) != 0x40) {
log.info("flag is not correct! flag:" + head + ",from: " + session.getRemoteAddress());
session.close(true);
return;
}
int len = in.getInt();
if (len <= 0 || len > MAX_SIZE) {
log.error(
"mdcconnector.Wrong lendth: "
+ len
+ "/"
+ MAX_SIZE
+ " - "
+ session.getRemoteAddress());
session.close(true);
break;
}
if (in.length() < len) {
in.reset();
break;
} else {
// do it
// log.info("stub.package.size: " + len);
byte[] b = new byte[len];
in.read(b);
if (TConn.DEBUG) {
log.debug("recv: " + Bean.toString(b));
}
/** test the zip flag */
if ((head & 0x10) > 0) {
b = Zip.unzip(b);
}
final TConn d = (TConn) session.getAttribute("conn");
if (d != null) {
/** test the encrypted flag */
if ((head & 0x20) > 0) {
b = DES.decode(b, d.deskey);
}
final byte[] bb = b;
/** test if the packet is for mdc or app */
new WorkerTask() {
@Override
public void onExecute() {
d.process(bb);
}
}.schedule(0);
session.setAttribute("last", System.currentTimeMillis());
}
}
}
} catch (Throwable e) {
log.error("closing stub: " + session.getRemoteAddress(), e);
session.close(true);
}
}
/*
* (non-Javadoc)
*
* @see
* org.apache.mina.core.service.IoHandlerAdapter#sessionCreated(org.apache
* .mina.core.session.IoSession)
*/
public void sessionCreated(IoSession session) throws Exception {
String remote = session.getRemoteAddress().toString();
log.info("stub created:" + remote);
/** check the allow ip */
if (TConn.ALLOW_IP == null || "*".equals(TConn.ALLOW_IP) || remote.matches(TConn.ALLOW_IP)) {
TConn d = new TConn(session);
session.setAttribute("conn", d);
} else {
log.warn("deny the connection:" + remote + ", allow ip:" + TConn.ALLOW_IP);
session.close(true);
}
}
/*
* (non-Javadoc)
*
* @see
* org.apache.mina.core.service.IoHandlerAdapter#sessionClosed(org.apache
* .mina.core.session.IoSession)
*/
public void sessionClosed(IoSession session) throws Exception {
log.debug("closed stub: " + session.getRemoteAddress());
TConn d = (TConn) session.getAttribute("conn");
if (d != null) {
d.close();
}
}
/*
* (non-Javadoc)
*
* @see
* org.apache.mina.core.service.IoHandlerAdapter#sessionIdle(org.apache.
* mina.core.session.IoSession, org.apache.mina.core.session.IdleStatus)
*/
public void sessionIdle(IoSession session, IdleStatus status) throws Exception {
if (IdleStatus.BOTH_IDLE.equals(status)) {
Long l = (Long) session.getAttribute("last");
if (l != null && System.currentTimeMillis() - l > 60 * 1000) {
session.close(true);
}
}
}
/*
* (non-Javadoc)
*
* @see
* org.apache.mina.core.service.IoHandlerAdapter#messageReceived(org.apache
* .mina.core.session.IoSession, java.lang.Object)
*/
public void messageReceived(IoSession session, Object message) throws Exception {
// System.out.println(message);
if (message instanceof IoBuffer) {
service((IoBuffer) message, session);
}
}
private static MDCConnector tcpconnector;
private static MDCConnector udpconnector;
/**
* @param host
* @param port
* @return TConn
*/
public static synchronized TConn connectByTcp(String host, int port) {
return connectByTcp(host, port, X.AMINUTE);
}
/**
* Connect by tcp.
*
* @param host the host
* @param port the port
* @return the t conn
*/
public static synchronized TConn connectByTcp(String host, int port, long timeout) {
TimeStamp t = TimeStamp.create();
try {
if (tcpconnector == null) {
tcpconnector = new TDCConnector();
}
tcpconnector.connector.setConnectTimeoutMillis(timeout);
ConnectFuture connFuture = tcpconnector.connector.connect(new InetSocketAddress(host, port));
connFuture.awaitUninterruptibly(timeout);
IoSession session = connFuture.getSession();
TConn c = new TConn(session);
session.setAttribute("conn", c);
return c;
} catch (Exception e) {
log.error(
"error, [" + host + ":" + port + "], cost: " + t.past() + "ms, timeout=" + timeout, e);
}
return null;
}
/**
* Connect by udp.
*
* @param host the host
* @param port the port
* @return the t conn
*/
public static synchronized TConn connectByUdp(String host, int port) {
try {
if (udpconnector == null) {
udpconnector = new UDCConnector();
}
ConnectFuture connFuture = udpconnector.connector.connect(new InetSocketAddress(host, port));
connFuture.awaitUninterruptibly();
IoSession session = connFuture.getSession();
TConn c = new TConn(session);
session.setAttribute("conn", c);
return c;
} catch (Exception e) {
log.error("[" + host + ":" + port + "]", e);
}
return null;
}
/*
* (non-Javadoc)
*
* @see
* org.apache.mina.core.service.IoHandlerAdapter#exceptionCaught(org.apache
* .mina.core.session.IoSession, java.lang.Throwable)
*/
@Override
public void exceptionCaught(IoSession session, Throwable cause) throws Exception {
log.error(cause.getMessage(), cause);
}
}
/**
* A simple RPC mechanism.
*
* <p>A <i>protocol</i> is a Java interface. All parameters and return types must be one of:
*
* <ul>
* <li>a primitive type, <code>boolean</code>, <code>byte</code>, <code>char</code>, <code>short
* </code>, <code>int</code>, <code>long</code>, <code>float</code>, <code>double</code>, or
* <code>void</code>; or
* <li>a {@link String}; or
* <li>a {@link Writable}; or
* <li>an array of the above types
* </ul>
*
* All methods in the protocol should throw only IOException. No field data of the protocol instance
* is transmitted.
*/
public class RPC {
private static final Log LOG = LogFactory.getLog(RPC.class);
private RPC() {} // no public ctor
/** A method invocation, including the method name and its parameters. */
private static class Invocation implements Writable, Configurable {
private String methodName;
private Class[] parameterClasses;
private Object[] parameters;
private Configuration conf;
public Invocation() {}
public Invocation(Method method, Object[] parameters) {
this.methodName = method.getName();
this.parameterClasses = method.getParameterTypes();
this.parameters = parameters;
}
/** The name of the method invoked. */
public String getMethodName() {
return methodName;
}
/** The parameter classes. */
public Class[] getParameterClasses() {
return parameterClasses;
}
/** The parameter instances. */
public Object[] getParameters() {
return parameters;
}
public void readFields(DataInput in) throws IOException {
methodName = UTF8.readString(in);
parameters = new Object[in.readInt()];
parameterClasses = new Class[parameters.length];
ObjectWritable objectWritable = new ObjectWritable();
for (int i = 0; i < parameters.length; i++) {
parameters[i] = ObjectWritable.readObject(in, objectWritable, this.conf);
parameterClasses[i] = objectWritable.getDeclaredClass();
}
}
public void write(DataOutput out) throws IOException {
ObjectWritable.writeStringCached(out, methodName);
out.writeInt(parameterClasses.length);
for (int i = 0; i < parameterClasses.length; i++) {
ObjectWritable.writeObject(out, parameters[i], parameterClasses[i], conf);
}
}
public String toString() {
StringBuffer buffer = new StringBuffer();
buffer.append(methodName);
buffer.append("(");
for (int i = 0; i < parameters.length; i++) {
if (i != 0) buffer.append(", ");
buffer.append(parameters[i]);
}
buffer.append(")");
return buffer.toString();
}
public void setConf(Configuration conf) {
this.conf = conf;
}
public Configuration getConf() {
return this.conf;
}
}
/* Cache a client using its socket factory as the hash key */
private static class ClientCache {
private Map<SocketFactory, Client> clients = new HashMap<SocketFactory, Client>();
/**
* Construct & cache an IPC client with the user-provided SocketFactory if no cached client
* exists.
*
* @param conf Configuration
* @return an IPC client
*/
private synchronized Client getClient(Configuration conf, SocketFactory factory) {
// Construct & cache client. The configuration is only used for timeout,
// and Clients have connection pools. So we can either (a) lose some
// connection pooling and leak sockets, or (b) use the same timeout for all
// configurations. Since the IPC is usually intended globally, not
// per-job, we choose (a).
Client client = clients.get(factory);
if (client == null) {
client = new Client(ObjectWritable.class, conf, factory);
clients.put(factory, client);
} else {
client.incCount();
}
return client;
}
/**
* Construct & cache an IPC client with the default SocketFactory if no cached client exists.
*
* @param conf Configuration
* @return an IPC client
*/
private synchronized Client getClient(Configuration conf) {
return getClient(conf, SocketFactory.getDefault());
}
/**
* Stop a RPC client connection A RPC client is closed only when its reference count becomes
* zero.
*/
private void stopClient(Client client) {
synchronized (this) {
client.decCount();
if (client.isZeroReference()) {
clients.remove(client.getSocketFactory());
}
}
if (client.isZeroReference()) {
client.stop();
}
}
}
private static ClientCache CLIENTS = new ClientCache();
private static class Invoker implements InvocationHandler {
private InetSocketAddress address;
private UserGroupInformation ticket;
private Client client;
private boolean isClosed = false;
private boolean needCheckDnsUpdate = false;
private long timeLastDnsCheck = 0;
private final long MIN_DNS_CHECK_INTERVAL_MSEC = 120 * 1000;
private final int rpcTimeout;
private final Class<?> protocol;
public Invoker(
InetSocketAddress address,
UserGroupInformation ticket,
Configuration conf,
SocketFactory factory,
int rpcTimeout,
Class<?> protocol) {
this.address = address;
this.ticket = ticket;
this.client = CLIENTS.getClient(conf, factory);
this.rpcTimeout = rpcTimeout;
this.protocol = protocol;
}
private synchronized InetSocketAddress getAddress() {
if (needCheckDnsUpdate
&& address != null
&& address.getHostName() != null
&& System.currentTimeMillis() - this.timeLastDnsCheck > MIN_DNS_CHECK_INTERVAL_MSEC) {
try {
InetSocketAddress newAddr = NetUtils.resolveAddress(address);
if (newAddr != null) {
LOG.info("DNS change: " + newAddr);
address = newAddr;
}
} finally {
this.timeLastDnsCheck = System.currentTimeMillis();
}
}
needCheckDnsUpdate = false;
return address;
}
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
final boolean logDebug = LOG.isDebugEnabled();
long startTime = 0;
if (logDebug) {
startTime = System.currentTimeMillis();
}
ObjectWritable value = null;
try {
value =
(ObjectWritable)
client.call(
new Invocation(method, args), getAddress(), protocol, ticket, rpcTimeout);
} catch (RemoteException re) {
throw re;
} catch (ConnectException ce) {
needCheckDnsUpdate = true;
throw ce;
} catch (NoRouteToHostException nrhe) {
needCheckDnsUpdate = true;
throw nrhe;
} catch (PortUnreachableException pue) {
needCheckDnsUpdate = true;
throw pue;
} catch (UnknownHostException uhe) {
needCheckDnsUpdate = true;
throw uhe;
}
if (logDebug) {
long callTime = System.currentTimeMillis() - startTime;
LOG.debug("Call: " + method.getName() + " " + callTime);
}
return value.get();
}
/* close the IPC client that's responsible for this invoker's RPCs */
private synchronized void close() {
if (!isClosed) {
isClosed = true;
CLIENTS.stopClient(client);
}
}
}
/**
* An exception indicating that the client and server have incompatible versions. They are not
* able to communicate with each other.
*/
public static class VersionIncompatible extends IOException {
private String interfaceName;
private long clientVersion;
private long serverVersion;
/**
* Create a version incompatible exception
*
* @param interfaceName the name of the protocol mismatch
* @param clientVersion the client's version of the protocol
* @param serverVersion the server's version of the protocol
*/
public VersionIncompatible(String interfaceName, long clientVersion, long serverVersion) {
super(
"Protocol "
+ interfaceName
+ " version mismatch. (client = "
+ clientVersion
+ ", server = "
+ serverVersion
+ ")");
this.interfaceName = interfaceName;
this.clientVersion = clientVersion;
this.serverVersion = serverVersion;
}
/**
* Get the interface name
*
* @return the java class name (eg. org.apache.hadoop.mapred.InterTrackerProtocol)
*/
public String getInterfaceName() {
return interfaceName;
}
/** Get the client's preferred version */
public long getClientVersion() {
return clientVersion;
}
/** Get the server's agreed to version. */
public long getServerVersion() {
return serverVersion;
}
}
/**
* A version mismatch for the RPC protocol.
*
* <p>The client & server have different versions. But the server is not able to determine if they
* are compatible mostly because the client is newer than the server. So the proxy is created and
* the application client is left to decide if the client & server are compatible or not.
*/
public static class VersionMismatch extends VersionIncompatible {
private static final long serialVersionUID = 1L;
private final VersionedProtocol proxy;
/**
* Create a version mismatch exception
*
* @param interfaceName the name of the protocol mismatch
* @param clientVersion the client's version of the protocol
* @param serverVersion the server's version of the protocol
*/
public VersionMismatch(String interfaceName, long clientVersion, long serverVersion) {
super(interfaceName, clientVersion, serverVersion);
proxy = null;
}
/**
* Create a version mismatch exception
*
* @param interfaceName the name of the protocol mismatch
* @param clientVersion the client's version of the protocol
* @param serverVersion the server's version of the protocol
* @param proxy the proxy
*/
public VersionMismatch(
String interfaceName, long clientVersion, long serverVersion, VersionedProtocol proxy) {
super(interfaceName, clientVersion, serverVersion);
this.proxy = proxy;
}
/** Return the proxy */
public VersionedProtocol getProxy() {
return proxy;
}
}
public static <T extends VersionedProtocol> T waitForProxy(
Class<T> protocol, long clientVersion, InetSocketAddress addr, Configuration conf)
throws IOException {
return waitForProtocolProxy(protocol, clientVersion, addr, conf).getProxy();
}
public static <T extends VersionedProtocol> ProtocolProxy<T> waitForProtocolProxy(
Class<T> protocol, long clientVersion, InetSocketAddress addr, Configuration conf)
throws IOException {
return waitForProtocolProxy(protocol, clientVersion, addr, conf, Long.MAX_VALUE);
}
public static <T extends VersionedProtocol> T waitForProxy(
Class<T> protocol,
long clientVersion,
InetSocketAddress addr,
Configuration conf,
long timeout)
throws IOException {
return waitForProtocolProxy(protocol, clientVersion, addr, conf, timeout).getProxy();
}
public static <T extends VersionedProtocol> ProtocolProxy<T> waitForProtocolProxy(
Class<T> protocol,
long clientVersion,
InetSocketAddress addr,
Configuration conf,
long timeout)
throws IOException {
return waitForProtocolProxy(protocol, clientVersion, addr, conf, timeout, 0);
}
/**
* Get a proxy connection to a remote server
*
* @param protocol protocol class
* @param clientVersion client version
* @param addr remote address
* @param conf configuration to use
* @param connTimeout time in milliseconds before giving up
* @param rpcTimeout timeout for each RPC
* @return the proxy
* @throws IOException if the far end through a RemoteException
*/
public static <T extends VersionedProtocol> T waitForProxy(
Class<T> protocol,
long clientVersion,
InetSocketAddress addr,
Configuration conf,
long connTimeout,
int rpcTimeout)
throws IOException {
return waitForProtocolProxy(protocol, clientVersion, addr, conf, connTimeout, rpcTimeout)
.getProxy();
}
/**
* Get a proxy connection to a remote server
*
* @param protocol protocol class
* @param clientVersion client version
* @param addr remote address
* @param conf configuration to use
* @param rpcTimeout timeout for each RPC
* @param timeout time in milliseconds before giving up
* @return the proxy
* @throws IOException if the far end through a RemoteException
*/
static <T extends VersionedProtocol> ProtocolProxy<T> waitForProtocolProxy(
Class<T> protocol,
long clientVersion,
InetSocketAddress addr,
Configuration conf,
long timeout,
int rpcTimeout)
throws IOException {
long startTime = System.currentTimeMillis();
UserGroupInformation ugi = null;
try {
ugi = UserGroupInformation.login(conf);
} catch (LoginException le) {
throw new RuntimeException("Couldn't login!");
}
IOException ioe;
while (true) {
try {
return getProtocolProxy(
protocol,
clientVersion,
addr,
ugi,
conf,
NetUtils.getDefaultSocketFactory(conf),
rpcTimeout);
} catch (ConnectException se) { // namenode has not been started
LOG.info("Server at " + addr + " not available yet, Zzzzz...");
ioe = se;
} catch (SocketTimeoutException te) { // namenode is busy
LOG.info("Problem connecting to server: " + addr);
ioe = te;
}
// check if timed out
if (System.currentTimeMillis() - timeout >= startTime) {
throw ioe;
}
// wait for retry
try {
Thread.sleep(1000);
} catch (InterruptedException ie) {
// IGNORE
}
}
}
/**
* Construct a client-side proxy object that implements the named protocol, talking to a server at
* the named address.
*/
public static <T extends VersionedProtocol> T getProxy(
Class<T> protocol,
long clientVersion,
InetSocketAddress addr,
Configuration conf,
SocketFactory factory)
throws IOException {
return getProtocolProxy(protocol, clientVersion, addr, conf, factory).getProxy();
}
/**
* Construct a client-side protocol proxy that contains a set of server methods and a proxy object
* implementing the named protocol, talking to a server at the named address.
*/
public static <T extends VersionedProtocol> ProtocolProxy<T> getProtocolProxy(
Class<T> protocol,
long clientVersion,
InetSocketAddress addr,
Configuration conf,
SocketFactory factory)
throws IOException {
UserGroupInformation ugi = null;
try {
ugi = UserGroupInformation.login(conf);
} catch (LoginException le) {
throw new RuntimeException("Couldn't login!");
}
return getProtocolProxy(protocol, clientVersion, addr, ugi, conf, factory);
}
/**
* Construct a client-side proxy object that implements the named protocol, talking to a server at
* the named address.
*/
public static <T extends VersionedProtocol> T getProxy(
Class<T> protocol,
long clientVersion,
InetSocketAddress addr,
UserGroupInformation ticket,
Configuration conf,
SocketFactory factory)
throws IOException {
return getProtocolProxy(protocol, clientVersion, addr, ticket, conf, factory).getProxy();
}
/**
* Construct a client-side protocol proxy that contains a set of server methods and a proxy object
* implementing the named protocol, talking to a server at the named address.
*/
public static <T extends VersionedProtocol> ProtocolProxy<T> getProtocolProxy(
Class<T> protocol,
long clientVersion,
InetSocketAddress addr,
UserGroupInformation ticket,
Configuration conf,
SocketFactory factory)
throws IOException {
return getProtocolProxy(protocol, clientVersion, addr, ticket, conf, factory, 0);
}
/**
* Construct a client-side proxy that implements the named protocol, talking to a server at the
* named address.
*
* @param protocol protocol
* @param clientVersion client's version
* @param addr server address
* @param ticket security ticket
* @param conf configuration
* @param factory socket factory
* @param rpcTimeout max time for each rpc; 0 means no timeout
* @return the proxy
* @throws IOException if any error occurs
*/
public static <T extends VersionedProtocol> T getProxy(
Class<T> protocol,
long clientVersion,
InetSocketAddress addr,
UserGroupInformation ticket,
Configuration conf,
SocketFactory factory,
int rpcTimeout)
throws IOException {
return getProtocolProxy(protocol, clientVersion, addr, ticket, conf, factory, rpcTimeout)
.getProxy();
}
/**
* Construct a client-side proxy that implements the named protocol, talking to a server at the
* named address.
*
* @param protocol protocol
* @param clientVersion client's version
* @param addr server address
* @param ticket security ticket
* @param conf configuration
* @param factory socket factory
* @param rpcTimeout max time for each rpc; 0 means no timeout
* @return the proxy
* @throws IOException if any error occurs
*/
@SuppressWarnings("unchecked")
public static <T extends VersionedProtocol> ProtocolProxy<T> getProtocolProxy(
Class<T> protocol,
long clientVersion,
InetSocketAddress addr,
UserGroupInformation ticket,
Configuration conf,
SocketFactory factory,
int rpcTimeout)
throws IOException {
T proxy =
(T)
Proxy.newProxyInstance(
protocol.getClassLoader(),
new Class[] {protocol},
new Invoker(addr, ticket, conf, factory, rpcTimeout, protocol));
String protocolName = protocol.getName();
try {
ProtocolSignature serverInfo =
proxy.getProtocolSignature(
protocolName, clientVersion, ProtocolSignature.getFingerprint(protocol.getMethods()));
return new ProtocolProxy<T>(protocol, proxy, serverInfo.getMethods());
} catch (RemoteException re) {
IOException ioe = re.unwrapRemoteException(IOException.class);
if (ioe.getMessage()
.startsWith(IOException.class.getName() + ": " + NoSuchMethodException.class.getName())) {
// Method getProtocolSignature not supported
long serverVersion = proxy.getProtocolVersion(protocol.getName(), clientVersion);
if (serverVersion == clientVersion) {
return new ProtocolProxy<T>(protocol, proxy, null);
}
throw new VersionMismatch(protocolName, clientVersion, serverVersion, proxy);
}
throw re;
}
}
/**
* Construct a client-side proxy object with the default SocketFactory
*
* @param protocol
* @param clientVersion
* @param addr
* @param conf
* @return a proxy instance
* @throws IOException
*/
public static <T extends VersionedProtocol> T getProxy(
Class<T> protocol, long clientVersion, InetSocketAddress addr, Configuration conf)
throws IOException {
return getProtocolProxy(protocol, clientVersion, addr, conf).getProxy();
}
/**
* Construct a client-side proxy object with the default SocketFactory
*
* @param protocol
* @param clientVersion
* @param addr
* @param conf
* @return a proxy instance
* @throws IOException
*/
public static <T extends VersionedProtocol> ProtocolProxy<T> getProtocolProxy(
Class<T> protocol, long clientVersion, InetSocketAddress addr, Configuration conf)
throws IOException {
return getProtocolProxy(
protocol, clientVersion, addr, conf, NetUtils.getDefaultSocketFactory(conf));
}
/**
* Stop this proxy and release its invoker's resource
*
* @param <T>
* @param proxy the proxy to be stopped
*/
public static <T extends VersionedProtocol> void stopProxy(T proxy) {
if (proxy != null) {
((Invoker) Proxy.getInvocationHandler(proxy)).close();
}
}
/**
* Expert: Make multiple, parallel calls to a set of servers.
*
* @deprecated Use {@link #call(Method, Object[][], InetSocketAddress[], UserGroupInformation,
* Configuration)} instead
*/
public static Object[] call(
Method method, Object[][] params, InetSocketAddress[] addrs, Configuration conf)
throws IOException {
return call(method, params, addrs, null, conf);
}
/** Expert: Make multiple, parallel calls to a set of servers. */
public static Object[] call(
Method method,
Object[][] params,
InetSocketAddress[] addrs,
UserGroupInformation ticket,
Configuration conf)
throws IOException {
Invocation[] invocations = new Invocation[params.length];
for (int i = 0; i < params.length; i++) invocations[i] = new Invocation(method, params[i]);
Client client = CLIENTS.getClient(conf);
try {
Writable[] wrappedValues =
client.call(invocations, addrs, method.getDeclaringClass(), ticket);
if (method.getReturnType() == Void.TYPE) {
return null;
}
Object[] values = (Object[]) Array.newInstance(method.getReturnType(), wrappedValues.length);
for (int i = 0; i < values.length; i++)
if (wrappedValues[i] != null) values[i] = ((ObjectWritable) wrappedValues[i]).get();
return values;
} finally {
CLIENTS.stopClient(client);
}
}
static Client getClient(Configuration conf, SocketFactory socketFactory) {
return CLIENTS.getClient(conf, socketFactory);
}
/** Construct a server for a protocol implementation instance listening on a port and address. */
public static Server getServer(
final Object instance, final String bindAddress, final int port, Configuration conf)
throws IOException {
return getServer(instance, bindAddress, port, 1, false, conf);
}
/** Construct a server for a protocol implementation instance listening on a port and address. */
public static Server getServer(
final Object instance,
final String bindAddress,
final int port,
final int numHandlers,
final boolean verbose,
Configuration conf)
throws IOException {
return getServer(instance, bindAddress, port, numHandlers, verbose, conf, true);
}
/** Construct a server for a protocol implementation instance listening on a port and address. */
public static Server getServer(
final Object instance,
final String bindAddress,
final int port,
final int numHandlers,
final boolean verbose,
Configuration conf,
boolean supportOldJobConf)
throws IOException {
return new Server(instance, conf, bindAddress, port, numHandlers, verbose, supportOldJobConf);
}
/** An RPC Server. */
public static class Server extends org.apache.hadoop.ipc.Server {
private Object instance;
private boolean verbose;
private boolean authorize = false;
/**
* Construct an RPC server.
*
* @param instance the instance whose methods will be called
* @param conf the configuration to use
* @param bindAddress the address to bind on to listen for connection
* @param port the port to listen for connections on
*/
public Server(Object instance, Configuration conf, String bindAddress, int port)
throws IOException {
this(instance, conf, bindAddress, port, 1, false);
}
private static String classNameBase(String className) {
String[] names = className.split("\\.", -1);
if (names == null || names.length == 0) {
return className;
}
return names[names.length - 1];
}
/**
* Construct an RPC server.
*
* @param instance the instance whose methods will be called
* @param conf the configuration to use
* @param bindAddress the address to bind on to listen for connection
* @param port the port to listen for connections on
* @param numHandlers the number of method handler threads to run
* @param verbose whether each call should be logged
*/
public Server(
Object instance,
Configuration conf,
String bindAddress,
int port,
int numHandlers,
boolean verbose)
throws IOException {
this(instance, conf, bindAddress, port, numHandlers, verbose, true);
}
/**
* Construct an RPC server.
*
* @param instance the instance whose methods will be called
* @param conf the configuration to use
* @param bindAddress the address to bind on to listen for connection
* @param port the port to listen for connections on
* @param numHandlers the number of method handler threads to run
* @param verbose whether each call should be logged
* @param supportOldJobConf supports server to deserialize old job conf
*/
public Server(
Object instance,
Configuration conf,
String bindAddress,
int port,
int numHandlers,
boolean verbose,
boolean supportOldJobConf)
throws IOException {
super(
bindAddress,
port,
Invocation.class,
numHandlers,
conf,
classNameBase(instance.getClass().getName()),
supportOldJobConf);
this.instance = instance;
this.verbose = verbose;
this.authorize =
conf.getBoolean(ServiceAuthorizationManager.SERVICE_AUTHORIZATION_CONFIG, false);
}
public Writable call(Class<?> protocol, Writable param, long receivedTime) throws IOException {
try {
Invocation call = (Invocation) param;
if (verbose) log("Call: " + call);
Method method = protocol.getMethod(call.getMethodName(), call.getParameterClasses());
method.setAccessible(true);
int qTime = (int) (System.currentTimeMillis() - receivedTime);
long startNanoTime = System.nanoTime();
Object value = method.invoke(instance, call.getParameters());
long processingMicroTime = (System.nanoTime() - startNanoTime) / 1000;
if (LOG.isDebugEnabled()) {
LOG.debug(
"Served: "
+ call.getMethodName()
+ " queueTime (millisec)= "
+ qTime
+ " procesingTime (microsec)= "
+ processingMicroTime);
}
rpcMetrics.rpcQueueTime.inc(qTime);
rpcMetrics.rpcProcessingTime.inc(processingMicroTime);
MetricsTimeVaryingRate m =
(MetricsTimeVaryingRate) rpcMetrics.registry.get(call.getMethodName());
if (m == null) {
try {
m = new MetricsTimeVaryingRate(call.getMethodName(), rpcMetrics.registry);
} catch (IllegalArgumentException iae) {
// the metrics has been registered; re-fetch the handle
LOG.debug("Error register " + call.getMethodName(), iae);
m = (MetricsTimeVaryingRate) rpcMetrics.registry.get(call.getMethodName());
}
}
// record call time in microseconds
m.inc(processingMicroTime);
if (verbose) log("Return: " + value);
return new ObjectWritable(method.getReturnType(), value);
} catch (InvocationTargetException e) {
Throwable target = e.getTargetException();
if (target instanceof IOException) {
throw (IOException) target;
} else {
IOException ioe = new IOException(target.toString());
ioe.setStackTrace(target.getStackTrace());
throw ioe;
}
} catch (Throwable e) {
if (!(e instanceof IOException)) {
LOG.error("Unexpected throwable object ", e);
}
IOException ioe = new IOException(e.toString());
ioe.setStackTrace(e.getStackTrace());
throw ioe;
}
}
@Override
public void authorize(Subject user, ConnectionHeader connection) throws AuthorizationException {
if (authorize) {
Class<?> protocol = null;
try {
protocol = getProtocolClass(connection.getProtocol(), getConf());
} catch (ClassNotFoundException cfne) {
throw new AuthorizationException("Unknown protocol: " + connection.getProtocol());
}
ServiceAuthorizationManager.authorize(user, protocol);
}
}
}
private static void log(String value) {
if (value != null && value.length() > 55) value = value.substring(0, 55) + "...";
LOG.info(value);
}
}
/**
* A simple RPC mechanism.
*
* <p>A <i>protocol</i> is a Java interface. All parameters and return types must be one of:
*
* <ul>
* <li>a primitive type, <code>boolean</code>, <code>byte</code>, <code>char</code>, <code>short
* </code>, <code>int</code>, <code>long</code>, <code>float</code>, <code>double</code>, or
* <code>void</code>; or
* <li>a {@link String}; or
* <li>a {@link Writable}; or
* <li>an array of the above types
* </ul>
*
* All methods in the protocol should throw only IOException. No field data of the protocol instance
* is transmitted.
*/
@InterfaceAudience.LimitedPrivate(value = {"Common", "HDFS", "MapReduce", "Yarn"})
@InterfaceStability.Evolving
public class RPC {
static final int RPC_SERVICE_CLASS_DEFAULT = 0;
public enum RpcKind {
RPC_BUILTIN((short) 1), // Used for built in calls by tests
RPC_WRITABLE((short) 2), // Use WritableRpcEngine
RPC_PROTOCOL_BUFFER((short) 3); // Use ProtobufRpcEngine
static final short MAX_INDEX = RPC_PROTOCOL_BUFFER.value; // used for array size
public final short value; // TODO make it private
RpcKind(short val) {
this.value = val;
}
}
interface RpcInvoker {
/**
* Process a client call on the server side
*
* @param server the server within whose context this rpc call is made
* @param protocol - the protocol name (the class of the client proxy used to make calls to the
* rpc server.
* @param rpcRequest - deserialized
* @param receiveTime time at which the call received (for metrics)
* @return the call's return
* @throws IOException
*/
public Writable call(Server server, String protocol, Writable rpcRequest, long receiveTime)
throws Exception;
}
static final Log LOG = LogFactory.getLog(RPC.class);
/**
* Get all superInterfaces that extend VersionedProtocol
*
* @param childInterfaces
* @return the super interfaces that extend VersionedProtocol
*/
static Class<?>[] getSuperInterfaces(Class<?>[] childInterfaces) {
List<Class<?>> allInterfaces = new ArrayList<Class<?>>();
for (Class<?> childInterface : childInterfaces) {
if (VersionedProtocol.class.isAssignableFrom(childInterface)) {
allInterfaces.add(childInterface);
allInterfaces.addAll(Arrays.asList(getSuperInterfaces(childInterface.getInterfaces())));
} else {
LOG.warn(
"Interface "
+ childInterface
+ " ignored because it does not extend VersionedProtocol");
}
}
return allInterfaces.toArray(new Class[allInterfaces.size()]);
}
/**
* Get all interfaces that the given protocol implements or extends which are assignable from
* VersionedProtocol.
*/
static Class<?>[] getProtocolInterfaces(Class<?> protocol) {
Class<?>[] interfaces = protocol.getInterfaces();
return getSuperInterfaces(interfaces);
}
/**
* Get the protocol name. If the protocol class has a ProtocolAnnotation, then get the protocol
* name from the annotation; otherwise the class name is the protocol name.
*/
public static String getProtocolName(Class<?> protocol) {
if (protocol == null) {
return null;
}
ProtocolInfo anno = protocol.getAnnotation(ProtocolInfo.class);
return (anno == null) ? protocol.getName() : anno.protocolName();
}
/**
* Get the protocol version from protocol class. If the protocol class has a ProtocolAnnotation,
* then get the protocol name from the annotation; otherwise the class name is the protocol name.
*/
public static long getProtocolVersion(Class<?> protocol) {
if (protocol == null) {
throw new IllegalArgumentException("Null protocol");
}
long version;
ProtocolInfo anno = protocol.getAnnotation(ProtocolInfo.class);
if (anno != null) {
version = anno.protocolVersion();
if (version != -1) return version;
}
try {
Field versionField = protocol.getField("versionID");
versionField.setAccessible(true);
return versionField.getLong(protocol);
} catch (NoSuchFieldException ex) {
throw new RuntimeException(ex);
} catch (IllegalAccessException ex) {
throw new RuntimeException(ex);
}
}
private RPC() {} // no public ctor
// cache of RpcEngines by protocol
private static final Map<Class<?>, RpcEngine> PROTOCOL_ENGINES =
new HashMap<Class<?>, RpcEngine>();
private static final String ENGINE_PROP = "rpc.engine";
/**
* Set a protocol to use a non-default RpcEngine.
*
* @param conf configuration to use
* @param protocol the protocol interface
* @param engine the RpcEngine impl
*/
public static void setProtocolEngine(Configuration conf, Class<?> protocol, Class<?> engine) {
conf.setClass(ENGINE_PROP + "." + protocol.getName(), engine, RpcEngine.class);
}
// return the RpcEngine configured to handle a protocol
static synchronized RpcEngine getProtocolEngine(Class<?> protocol, Configuration conf) {
RpcEngine engine = PROTOCOL_ENGINES.get(protocol);
if (engine == null) {
Class<?> impl =
conf.getClass(ENGINE_PROP + "." + protocol.getName(), WritableRpcEngine.class);
engine = (RpcEngine) ReflectionUtils.newInstance(impl, conf);
PROTOCOL_ENGINES.put(protocol, engine);
}
return engine;
}
/** A version mismatch for the RPC protocol. */
public static class VersionMismatch extends RpcServerException {
private static final long serialVersionUID = 0;
private String interfaceName;
private long clientVersion;
private long serverVersion;
/**
* Create a version mismatch exception
*
* @param interfaceName the name of the protocol mismatch
* @param clientVersion the client's version of the protocol
* @param serverVersion the server's version of the protocol
*/
public VersionMismatch(String interfaceName, long clientVersion, long serverVersion) {
super(
"Protocol "
+ interfaceName
+ " version mismatch. (client = "
+ clientVersion
+ ", server = "
+ serverVersion
+ ")");
this.interfaceName = interfaceName;
this.clientVersion = clientVersion;
this.serverVersion = serverVersion;
}
/**
* Get the interface name
*
* @return the java class name (eg. org.apache.hadoop.mapred.InterTrackerProtocol)
*/
public String getInterfaceName() {
return interfaceName;
}
/** Get the client's preferred version */
public long getClientVersion() {
return clientVersion;
}
/** Get the server's agreed to version. */
public long getServerVersion() {
return serverVersion;
}
/** get the rpc status corresponding to this exception */
public RpcStatusProto getRpcStatusProto() {
return RpcStatusProto.ERROR;
}
/** get the detailed rpc status corresponding to this exception */
public RpcErrorCodeProto getRpcErrorCodeProto() {
return RpcErrorCodeProto.ERROR_RPC_VERSION_MISMATCH;
}
}
/**
* Get a proxy connection to a remote server
*
* @param protocol protocol class
* @param clientVersion client version
* @param addr remote address
* @param conf configuration to use
* @return the proxy
* @throws IOException if the far end through a RemoteException
*/
public static <T> T waitForProxy(
Class<T> protocol, long clientVersion, InetSocketAddress addr, Configuration conf)
throws IOException {
return waitForProtocolProxy(protocol, clientVersion, addr, conf).getProxy();
}
/**
* Get a protocol proxy that contains a proxy connection to a remote server and a set of methods
* that are supported by the server
*
* @param protocol protocol class
* @param clientVersion client version
* @param addr remote address
* @param conf configuration to use
* @return the protocol proxy
* @throws IOException if the far end through a RemoteException
*/
public static <T> ProtocolProxy<T> waitForProtocolProxy(
Class<T> protocol, long clientVersion, InetSocketAddress addr, Configuration conf)
throws IOException {
return waitForProtocolProxy(protocol, clientVersion, addr, conf, Long.MAX_VALUE);
}
/**
* Get a proxy connection to a remote server
*
* @param protocol protocol class
* @param clientVersion client version
* @param addr remote address
* @param conf configuration to use
* @param connTimeout time in milliseconds before giving up
* @return the proxy
* @throws IOException if the far end through a RemoteException
*/
public static <T> T waitForProxy(
Class<T> protocol,
long clientVersion,
InetSocketAddress addr,
Configuration conf,
long connTimeout)
throws IOException {
return waitForProtocolProxy(protocol, clientVersion, addr, conf, connTimeout).getProxy();
}
/**
* Get a protocol proxy that contains a proxy connection to a remote server and a set of methods
* that are supported by the server
*
* @param protocol protocol class
* @param clientVersion client version
* @param addr remote address
* @param conf configuration to use
* @param connTimeout time in milliseconds before giving up
* @return the protocol proxy
* @throws IOException if the far end through a RemoteException
*/
public static <T> ProtocolProxy<T> waitForProtocolProxy(
Class<T> protocol,
long clientVersion,
InetSocketAddress addr,
Configuration conf,
long connTimeout)
throws IOException {
return waitForProtocolProxy(protocol, clientVersion, addr, conf, 0, null, connTimeout);
}
/**
* Get a proxy connection to a remote server
*
* @param protocol protocol class
* @param clientVersion client version
* @param addr remote address
* @param conf configuration to use
* @param rpcTimeout timeout for each RPC
* @param timeout time in milliseconds before giving up
* @return the proxy
* @throws IOException if the far end through a RemoteException
*/
public static <T> T waitForProxy(
Class<T> protocol,
long clientVersion,
InetSocketAddress addr,
Configuration conf,
int rpcTimeout,
long timeout)
throws IOException {
return waitForProtocolProxy(protocol, clientVersion, addr, conf, rpcTimeout, null, timeout)
.getProxy();
}
/**
* Get a protocol proxy that contains a proxy connection to a remote server and a set of methods
* that are supported by the server
*
* @param protocol protocol class
* @param clientVersion client version
* @param addr remote address
* @param conf configuration to use
* @param rpcTimeout timeout for each RPC
* @param timeout time in milliseconds before giving up
* @return the proxy
* @throws IOException if the far end through a RemoteException
*/
public static <T> ProtocolProxy<T> waitForProtocolProxy(
Class<T> protocol,
long clientVersion,
InetSocketAddress addr,
Configuration conf,
int rpcTimeout,
RetryPolicy connectionRetryPolicy,
long timeout)
throws IOException {
long startTime = Time.now();
IOException ioe;
while (true) {
try {
return getProtocolProxy(
protocol,
clientVersion,
addr,
UserGroupInformation.getCurrentUser(),
conf,
NetUtils.getDefaultSocketFactory(conf),
rpcTimeout,
connectionRetryPolicy);
} catch (ConnectException se) { // namenode has not been started
LOG.info("Server at " + addr + " not available yet, Zzzzz...");
ioe = se;
} catch (SocketTimeoutException te) { // namenode is busy
LOG.info("Problem connecting to server: " + addr);
ioe = te;
} catch (NoRouteToHostException nrthe) { // perhaps a VIP is failing over
LOG.info("No route to host for server: " + addr);
ioe = nrthe;
}
// check if timed out
if (Time.now() - timeout >= startTime) {
throw ioe;
}
// wait for retry
try {
Thread.sleep(1000);
} catch (InterruptedException ie) {
// IGNORE
}
}
}
/**
* Construct a client-side proxy object that implements the named protocol, talking to a server at
* the named address.
*
* @param <T>
*/
public static <T> T getProxy(
Class<T> protocol,
long clientVersion,
InetSocketAddress addr,
Configuration conf,
SocketFactory factory)
throws IOException {
return getProtocolProxy(protocol, clientVersion, addr, conf, factory).getProxy();
}
/**
* Get a protocol proxy that contains a proxy connection to a remote server and a set of methods
* that are supported by the server
*
* @param protocol protocol class
* @param clientVersion client version
* @param addr remote address
* @param conf configuration to use
* @param factory socket factory
* @return the protocol proxy
* @throws IOException if the far end through a RemoteException
*/
public static <T> ProtocolProxy<T> getProtocolProxy(
Class<T> protocol,
long clientVersion,
InetSocketAddress addr,
Configuration conf,
SocketFactory factory)
throws IOException {
UserGroupInformation ugi = UserGroupInformation.getCurrentUser();
return getProtocolProxy(protocol, clientVersion, addr, ugi, conf, factory);
}
/**
* Construct a client-side proxy object that implements the named protocol, talking to a server at
* the named address.
*
* @param <T>
*/
public static <T> T getProxy(
Class<T> protocol,
long clientVersion,
InetSocketAddress addr,
UserGroupInformation ticket,
Configuration conf,
SocketFactory factory)
throws IOException {
return getProtocolProxy(protocol, clientVersion, addr, ticket, conf, factory).getProxy();
}
/**
* Get a protocol proxy that contains a proxy connection to a remote server and a set of methods
* that are supported by the server
*
* @param protocol protocol class
* @param clientVersion client version
* @param addr remote address
* @param ticket user group information
* @param conf configuration to use
* @param factory socket factory
* @return the protocol proxy
* @throws IOException if the far end through a RemoteException
*/
public static <T> ProtocolProxy<T> getProtocolProxy(
Class<T> protocol,
long clientVersion,
InetSocketAddress addr,
UserGroupInformation ticket,
Configuration conf,
SocketFactory factory)
throws IOException {
return getProtocolProxy(protocol, clientVersion, addr, ticket, conf, factory, 0, null);
}
/**
* Construct a client-side proxy that implements the named protocol, talking to a server at the
* named address.
*
* @param <T>
* @param protocol protocol
* @param clientVersion client's version
* @param addr server address
* @param ticket security ticket
* @param conf configuration
* @param factory socket factory
* @param rpcTimeout max time for each rpc; 0 means no timeout
* @return the proxy
* @throws IOException if any error occurs
*/
public static <T> T getProxy(
Class<T> protocol,
long clientVersion,
InetSocketAddress addr,
UserGroupInformation ticket,
Configuration conf,
SocketFactory factory,
int rpcTimeout)
throws IOException {
return getProtocolProxy(protocol, clientVersion, addr, ticket, conf, factory, rpcTimeout, null)
.getProxy();
}
/**
* Get a protocol proxy that contains a proxy connection to a remote server and a set of methods
* that are supported by the server
*
* @param protocol protocol
* @param clientVersion client's version
* @param addr server address
* @param ticket security ticket
* @param conf configuration
* @param factory socket factory
* @param rpcTimeout max time for each rpc; 0 means no timeout
* @return the proxy
* @throws IOException if any error occurs
*/
public static <T> ProtocolProxy<T> getProtocolProxy(
Class<T> protocol,
long clientVersion,
InetSocketAddress addr,
UserGroupInformation ticket,
Configuration conf,
SocketFactory factory,
int rpcTimeout,
RetryPolicy connectionRetryPolicy)
throws IOException {
if (UserGroupInformation.isSecurityEnabled()) {
SaslRpcServer.init(conf);
}
return getProtocolEngine(protocol, conf)
.getProxy(
protocol,
clientVersion,
addr,
ticket,
conf,
factory,
rpcTimeout,
connectionRetryPolicy);
}
/**
* Construct a client-side proxy object with the default SocketFactory
*
* @param <T>
* @param protocol
* @param clientVersion
* @param addr
* @param conf
* @return a proxy instance
* @throws IOException
*/
public static <T> T getProxy(
Class<T> protocol, long clientVersion, InetSocketAddress addr, Configuration conf)
throws IOException {
return getProtocolProxy(protocol, clientVersion, addr, conf).getProxy();
}
/** Returns the server address for a given proxy. */
public static InetSocketAddress getServerAddress(Object proxy) {
return getConnectionIdForProxy(proxy).getAddress();
}
/**
* Return the connection ID of the given object. If the provided object is in fact a protocol
* translator, we'll get the connection ID of the underlying proxy object.
*
* @param proxy the proxy object to get the connection ID of.
* @return the connection ID for the provided proxy object.
*/
public static ConnectionId getConnectionIdForProxy(Object proxy) {
if (proxy instanceof ProtocolTranslator) {
proxy = ((ProtocolTranslator) proxy).getUnderlyingProxyObject();
}
RpcInvocationHandler inv = (RpcInvocationHandler) Proxy.getInvocationHandler(proxy);
return inv.getConnectionId();
}
/**
* Get a protocol proxy that contains a proxy connection to a remote server and a set of methods
* that are supported by the server
*
* @param protocol
* @param clientVersion
* @param addr
* @param conf
* @return a protocol proxy
* @throws IOException
*/
public static <T> ProtocolProxy<T> getProtocolProxy(
Class<T> protocol, long clientVersion, InetSocketAddress addr, Configuration conf)
throws IOException {
return getProtocolProxy(
protocol, clientVersion, addr, conf, NetUtils.getDefaultSocketFactory(conf));
}
/**
* Stop the proxy. Proxy must either implement {@link Closeable} or must have associated {@link
* RpcInvocationHandler}.
*
* @param proxy the RPC proxy object to be stopped
* @throws HadoopIllegalArgumentException if the proxy does not implement {@link Closeable}
* interface or does not have closeable {@link InvocationHandler}
*/
public static void stopProxy(Object proxy) {
if (proxy == null) {
throw new HadoopIllegalArgumentException("Cannot close proxy since it is null");
}
try {
if (proxy instanceof Closeable) {
((Closeable) proxy).close();
return;
} else {
InvocationHandler handler = Proxy.getInvocationHandler(proxy);
if (handler instanceof Closeable) {
((Closeable) handler).close();
return;
}
}
} catch (IOException e) {
LOG.error("Closing proxy or invocation handler caused exception", e);
} catch (IllegalArgumentException e) {
LOG.error("RPC.stopProxy called on non proxy: class=" + proxy.getClass().getName(), e);
}
// If you see this error on a mock object in a unit test you're
// developing, make sure to use MockitoUtil.mockProtocol() to
// create your mock.
throw new HadoopIllegalArgumentException(
"Cannot close proxy - is not Closeable or "
+ "does not provide closeable invocation handler "
+ proxy.getClass());
}
/** Class to construct instances of RPC server with specific options. */
public static class Builder {
private Class<?> protocol = null;
private Object instance = null;
private String bindAddress = "0.0.0.0";
private int port = 0;
private int numHandlers = 1;
private int numReaders = -1;
private int queueSizePerHandler = -1;
private boolean verbose = false;
private final Configuration conf;
private SecretManager<? extends TokenIdentifier> secretManager = null;
private String portRangeConfig = null;
public Builder(Configuration conf) {
this.conf = conf;
}
/** Mandatory field */
public Builder setProtocol(Class<?> protocol) {
this.protocol = protocol;
return this;
}
/** Mandatory field */
public Builder setInstance(Object instance) {
this.instance = instance;
return this;
}
/** Default: 0.0.0.0 */
public Builder setBindAddress(String bindAddress) {
this.bindAddress = bindAddress;
return this;
}
/** Default: 0 */
public Builder setPort(int port) {
this.port = port;
return this;
}
/** Default: 1 */
public Builder setNumHandlers(int numHandlers) {
this.numHandlers = numHandlers;
return this;
}
/** Default: -1 */
public Builder setnumReaders(int numReaders) {
this.numReaders = numReaders;
return this;
}
/** Default: -1 */
public Builder setQueueSizePerHandler(int queueSizePerHandler) {
this.queueSizePerHandler = queueSizePerHandler;
return this;
}
/** Default: false */
public Builder setVerbose(boolean verbose) {
this.verbose = verbose;
return this;
}
/** Default: null */
public Builder setSecretManager(SecretManager<? extends TokenIdentifier> secretManager) {
this.secretManager = secretManager;
return this;
}
/** Default: null */
public Builder setPortRangeConfig(String portRangeConfig) {
this.portRangeConfig = portRangeConfig;
return this;
}
/**
* Build the RPC Server.
*
* @throws IOException on error
* @throws HadoopIllegalArgumentException when mandatory fields are not set
*/
public Server build() throws IOException, HadoopIllegalArgumentException {
if (this.conf == null) {
throw new HadoopIllegalArgumentException("conf is not set");
}
if (this.protocol == null) {
throw new HadoopIllegalArgumentException("protocol is not set");
}
if (this.instance == null) {
throw new HadoopIllegalArgumentException("instance is not set");
}
return getProtocolEngine(this.protocol, this.conf)
.getServer(
this.protocol,
this.instance,
this.bindAddress,
this.port,
this.numHandlers,
this.numReaders,
this.queueSizePerHandler,
this.verbose,
this.conf,
this.secretManager,
this.portRangeConfig);
}
}
/** An RPC Server. */
public abstract static class Server extends org.apache.hadoop.ipc.Server {
boolean verbose;
static String classNameBase(String className) {
String[] names = className.split("\\.", -1);
if (names == null || names.length == 0) {
return className;
}
return names[names.length - 1];
}
/** Store a map of protocol and version to its implementation */
/** The key in Map */
static class ProtoNameVer {
final String protocol;
final long version;
ProtoNameVer(String protocol, long ver) {
this.protocol = protocol;
this.version = ver;
}
@Override
public boolean equals(Object o) {
if (o == null) return false;
if (this == o) return true;
if (!(o instanceof ProtoNameVer)) return false;
ProtoNameVer pv = (ProtoNameVer) o;
return ((pv.protocol.equals(this.protocol)) && (pv.version == this.version));
}
@Override
public int hashCode() {
return protocol.hashCode() * 37 + (int) version;
}
}
/** The value in map */
static class ProtoClassProtoImpl {
final Class<?> protocolClass;
final Object protocolImpl;
ProtoClassProtoImpl(Class<?> protocolClass, Object protocolImpl) {
this.protocolClass = protocolClass;
this.protocolImpl = protocolImpl;
}
}
ArrayList<Map<ProtoNameVer, ProtoClassProtoImpl>> protocolImplMapArray =
new ArrayList<Map<ProtoNameVer, ProtoClassProtoImpl>>(RpcKind.MAX_INDEX);
Map<ProtoNameVer, ProtoClassProtoImpl> getProtocolImplMap(RPC.RpcKind rpcKind) {
if (protocolImplMapArray.size() == 0) { // initialize for all rpc kinds
for (int i = 0; i <= RpcKind.MAX_INDEX; ++i) {
protocolImplMapArray.add(new HashMap<ProtoNameVer, ProtoClassProtoImpl>(10));
}
}
return protocolImplMapArray.get(rpcKind.ordinal());
}
// Register protocol and its impl for rpc calls
void registerProtocolAndImpl(RpcKind rpcKind, Class<?> protocolClass, Object protocolImpl) {
String protocolName = RPC.getProtocolName(protocolClass);
long version;
try {
version = RPC.getProtocolVersion(protocolClass);
} catch (Exception ex) {
LOG.warn("Protocol " + protocolClass + " NOT registered as cannot get protocol version ");
return;
}
getProtocolImplMap(rpcKind)
.put(
new ProtoNameVer(protocolName, version),
new ProtoClassProtoImpl(protocolClass, protocolImpl));
LOG.debug(
"RpcKind = "
+ rpcKind
+ " Protocol Name = "
+ protocolName
+ " version="
+ version
+ " ProtocolImpl="
+ protocolImpl.getClass().getName()
+ " protocolClass="
+ protocolClass.getName());
}
static class VerProtocolImpl {
final long version;
final ProtoClassProtoImpl protocolTarget;
VerProtocolImpl(long ver, ProtoClassProtoImpl protocolTarget) {
this.version = ver;
this.protocolTarget = protocolTarget;
}
}
VerProtocolImpl[] getSupportedProtocolVersions(RPC.RpcKind rpcKind, String protocolName) {
VerProtocolImpl[] resultk = new VerProtocolImpl[getProtocolImplMap(rpcKind).size()];
int i = 0;
for (Map.Entry<ProtoNameVer, ProtoClassProtoImpl> pv :
getProtocolImplMap(rpcKind).entrySet()) {
if (pv.getKey().protocol.equals(protocolName)) {
resultk[i++] = new VerProtocolImpl(pv.getKey().version, pv.getValue());
}
}
if (i == 0) {
return null;
}
VerProtocolImpl[] result = new VerProtocolImpl[i];
System.arraycopy(resultk, 0, result, 0, i);
return result;
}
VerProtocolImpl getHighestSupportedProtocol(RpcKind rpcKind, String protocolName) {
Long highestVersion = 0L;
ProtoClassProtoImpl highest = null;
if (LOG.isDebugEnabled()) {
LOG.debug("Size of protoMap for " + rpcKind + " =" + getProtocolImplMap(rpcKind).size());
}
for (Map.Entry<ProtoNameVer, ProtoClassProtoImpl> pv :
getProtocolImplMap(rpcKind).entrySet()) {
if (pv.getKey().protocol.equals(protocolName)) {
if ((highest == null) || (pv.getKey().version > highestVersion)) {
highest = pv.getValue();
highestVersion = pv.getKey().version;
}
}
}
if (highest == null) {
return null;
}
return new VerProtocolImpl(highestVersion, highest);
}
protected Server(
String bindAddress,
int port,
Class<? extends Writable> paramClass,
int handlerCount,
int numReaders,
int queueSizePerHandler,
Configuration conf,
String serverName,
SecretManager<? extends TokenIdentifier> secretManager,
String portRangeConfig)
throws IOException {
super(
bindAddress,
port,
paramClass,
handlerCount,
numReaders,
queueSizePerHandler,
conf,
serverName,
secretManager,
portRangeConfig);
initProtocolMetaInfo(conf);
}
private void initProtocolMetaInfo(Configuration conf) {
RPC.setProtocolEngine(conf, ProtocolMetaInfoPB.class, ProtobufRpcEngine.class);
ProtocolMetaInfoServerSideTranslatorPB xlator =
new ProtocolMetaInfoServerSideTranslatorPB(this);
BlockingService protocolInfoBlockingService =
ProtocolInfoService.newReflectiveBlockingService(xlator);
addProtocol(
RpcKind.RPC_PROTOCOL_BUFFER, ProtocolMetaInfoPB.class, protocolInfoBlockingService);
}
/**
* Add a protocol to the existing server.
*
* @param protocolClass - the protocol class
* @param protocolImpl - the impl of the protocol that will be called
* @return the server (for convenience)
*/
public Server addProtocol(RpcKind rpcKind, Class<?> protocolClass, Object protocolImpl) {
registerProtocolAndImpl(rpcKind, protocolClass, protocolImpl);
return this;
}
@Override
public Writable call(
RPC.RpcKind rpcKind, String protocol, Writable rpcRequest, long receiveTime)
throws Exception {
return getRpcInvoker(rpcKind).call(this, protocol, rpcRequest, receiveTime);
}
}
}
/** @author Johan Lindquist */
public class BaseController {
private Log _log = LogFactory.getLog(BaseController.class);
@Autowired protected JahSpotifyService _jahSpotifyService;
@Value(value = "${jahspotify.web.controller.default-media-expires-duration}")
private int _defaultMediaExpirationTime;
protected void writeResponse(
final HttpServletResponse httpServletResponse,
final SimpleStatusResponse simpleStatusResponse) {
Gson gson = new Gson();
try {
httpServletResponse.setContentType("application/json; charset=utf-8");
_log.debug("Serializing: " + simpleStatusResponse);
final PrintWriter writer = httpServletResponse.getWriter();
gson.toJson(simpleStatusResponse.getResponseStatus(), writer);
writer.flush();
writer.close();
} catch (Exception e) {
_log.error("Error while writing response: " + e.getMessage(), e);
}
}
protected void writeMediaNotReadable(final HttpServletResponse httpServletResponse) {
SimpleStatusResponse simpleStatusResponse = new SimpleStatusResponse();
simpleStatusResponse.setResponseStatus(ResponseStatus.RESOURCE_NOT_FOUND);
writeResponse(httpServletResponse, simpleStatusResponse);
}
protected void writeResponseGeneric(
final HttpServletResponse httpServletResponse, final Object object) {
this.writeResponseGenericWithDate(httpServletResponse, null, object);
}
protected void writeResponseGenericWithDate(
final HttpServletResponse httpServletResponse, final Date lastModified, final Object object) {
writeResponseGenericWithDate(
httpServletResponse, lastModified, _defaultMediaExpirationTime, object);
}
protected void writeResponseGenericWithDate(
final HttpServletResponse httpServletResponse,
final Date lastModified,
final int expirationTime,
final Object object) {
Gson gson = new Gson();
try {
httpServletResponse.setContentType("application/json; charset=utf-8");
if (lastModified != null) {
httpServletResponse.addHeader("Expires", createDateHeader(expirationTime));
httpServletResponse.addHeader("Last-Modified", toHttpDate(lastModified));
}
_log.debug("Serializing: " + object);
final PrintWriter writer = httpServletResponse.getWriter();
gson.toJson(object, writer);
writer.flush();
writer.close();
} catch (Exception e) {
_log.error("Error while writing response: " + e.getMessage(), e);
}
}
protected String createDateHeader(int expires) {
final Calendar utc = GregorianCalendar.getInstance(TimeZone.getTimeZone("UTC"));
utc.add(Calendar.SECOND, expires);
return toHttpDate(utc.getTime());
}
protected String toHttpDate(Date date) {
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("EEE, d MMM yyyy HH:mm:ss z");
return simpleDateFormat.format(date);
}
protected Link retrieveLink(final HttpServletRequest httpServletRequest) {
String uri =
httpServletRequest
.getRequestURI()
.substring(httpServletRequest.getRequestURI().lastIndexOf("/") + 1);
_log.debug("Extracted URI: " + uri);
return Link.create(uri);
}
protected <T> T readRequest(final HttpServletRequest httpServletRequest, final Class<T> classOfT)
throws IOException {
final BufferedReader br = new BufferedReader(httpServletRequest.getReader());
Gson gson = new Gson();
return gson.fromJson(br, classOfT);
}
public void writeErrorResponse(final HttpServletResponse httpServletResponse, final Exception e) {
SimpleStatusResponse simpleStatusResponse = new SimpleStatusResponse();
simpleStatusResponse.setResponseStatus(ResponseStatus.INTERNAL_ERROR);
writeResponse(httpServletResponse, simpleStatusResponse);
}
}