/**
* Compiles and returns a report on its status.
*
* @param name Report name.
* @param pw Where to print.
*/
public void reportTo(String name, PrintWriter pw) {
// name is ignored for now: only one kind of report
pw.print("[");
pw.println(getName());
// Make a local copy of the currentCuri reference in case it gets
// nulled while we're using it. We're doing this because
// alternative is synchronizing and we don't want to do this --
// it causes hang ups as controller waits on a lock for this thread,
// something it gets easily enough on old threading model but something
// it can wait interminably for on NPTL threading model.
// See [ 994946 ] Pause/Terminate ignored on 2.6 kernel 1.5 JVM.
CrawlURI c = currentCuri;
if (c != null) {
pw.print(" ");
c.shortReportLineTo(pw);
pw.print(" ");
pw.print(c.getFetchAttempts());
pw.print(" attempts");
pw.println();
pw.print(" ");
pw.print("in processor: ");
pw.print(currentProcessorName);
} else {
pw.print(" -no CrawlURI- ");
}
pw.println();
long now = System.currentTimeMillis();
long time = 0;
pw.print(" ");
if (lastFinishTime > lastStartTime) {
// That means we finished something after we last started something
// or in other words we are not working on anything.
pw.print("WAITING for ");
time = now - lastFinishTime;
} else if (lastStartTime > 0) {
// We are working on something
pw.print("ACTIVE for ");
time = now - lastStartTime;
}
pw.print(ArchiveUtils.formatMillisecondsToConventional(time));
pw.println();
pw.print(" ");
pw.print("step: ");
pw.print(step);
pw.print(" for ");
pw.print(
ArchiveUtils.formatMillisecondsToConventional(System.currentTimeMillis() - atStepSince));
pw.println();
reportThread(this, pw);
pw.print("]");
pw.println();
pw.flush();
}
public Map<String, Object> shortReportMap() {
Map<String, Object> data = new LinkedHashMap<String, Object>();
data.put("serialNumber", serialNumber);
CrawlURI c = currentCuri;
if (c != null) {
data.put("currentURI", c.toString());
data.put("currentProcessor", currentProcessorName);
data.put("fetchAttempts", c.getFetchAttempts());
} else {
data.put("currentURI", null);
}
long now = System.currentTimeMillis();
long time = 0;
if (lastFinishTime > lastStartTime) {
data.put("status", "WAITING");
time = now - lastFinishTime;
} else if (lastStartTime > 0) {
data.put("status", "ACTIVE");
time = now - lastStartTime;
}
data.put("currentStatusElapsedMilliseconds", time);
data.put("currentStatusElapsedPretty", ArchiveUtils.formatMillisecondsToConventional(time));
data.put("step", step);
return data;
}
{
Random rand = new Random(1);
try {
byte[] buf = new byte[1024];
rand.nextBytes(buf);
noise1k_gz = ArchiveUtils.gzip(buf);
buf = new byte[32 * 1024];
rand.nextBytes(buf);
noise32k_gz = ArchiveUtils.gzip(buf);
a_gz = ArchiveUtils.gzip("a".getBytes("ASCII"));
hello_gz = ArchiveUtils.gzip("hello".getBytes("ASCII"));
allfour_gz = Bytes.concat(noise1k_gz, noise32k_gz, a_gz, hello_gz);
sixsmall_gz = Bytes.concat(a_gz, hello_gz, a_gz, hello_gz, a_gz, hello_gz);
} catch (IOException e) {
// should not happen
}
}
/** @param w PrintWriter to write to. */
public void shortReportLineTo(PrintWriter w) {
w.print("#");
w.print(this.serialNumber);
// Make a local copy of the currentCuri reference in case it gets
// nulled while we're using it. We're doing this because
// alternative is synchronizing and we don't want to do this --
// it causes hang ups as controller waits on a lock for this thread,
// something it gets easily enough on old threading model but something
// it can wait interminably for on NPTL threading model.
// See [ 994946 ] Pause/Terminate ignored on 2.6 kernel 1.5 JVM.
CrawlURI c = currentCuri;
if (c != null) {
w.print(" ");
w.print(currentProcessorName);
w.print(" ");
w.print(c.toString());
w.print(" (");
w.print(c.getFetchAttempts());
w.print(") ");
} else {
w.print(" [no CrawlURI] ");
}
long now = System.currentTimeMillis();
long time = 0;
if (lastFinishTime > lastStartTime) {
// That means we finished something after we last started something
// or in other words we are not working on anything.
w.print("WAITING for ");
time = now - lastFinishTime;
} else if (lastStartTime > 0) {
// We are working on something
w.print("ACTIVE for ");
time = now - lastStartTime;
}
w.print(ArchiveUtils.formatMillisecondsToConventional(time));
w.print(" at ");
w.print(step);
w.print(" for ");
w.print(ArchiveUtils.formatMillisecondsToConventional(now - atStepSince));
w.print("\n");
w.flush();
}
protected CrawlURI peekItem(final WorkQueueFrontier frontier) throws IOException {
final BdbMultipleWorkQueues queues = ((BdbFrontier) frontier).getWorkQueues();
DatabaseEntry key = new DatabaseEntry(origin);
CrawlURI curi = null;
int tries = 1;
while (true) {
try {
curi = queues.get(key);
} catch (DatabaseException e) {
LOGGER.log(Level.SEVERE, "peekItem failure; retrying", e);
}
// ensure CrawlURI, if any, came from acceptable range:
if (!ArchiveUtils.startsWith(key.getData(), origin)) {
LOGGER.severe(
"inconsistency: "
+ classKey
+ "("
+ getPrefixClassKey(origin)
+ ") with "
+ getCount()
+ " items gave "
+ curi
+ "("
+ getPrefixClassKey(key.getData()));
// clear curi to allow retry
curi = null;
// reset key to original origin for retry
key.setData(origin);
}
if (curi != null) {
// success
break;
}
if (tries > 3) {
LOGGER.severe("no item where expected in queue " + classKey);
break;
}
tries++;
LOGGER.severe(
"Trying get #"
+ Integer.toString(tries)
+ " in queue "
+ classKey
+ " with "
+ getCount()
+ " items using key "
+ getPrefixClassKey(key.getData()));
}
return curi;
}
/**
* Populates a given StoredSortedMap (history map) from an old environment db or a persist log. If
* a map is not provided, only logs the entries that would have been populated.
*
* @param sourceFile source of old entries: can be a path to an existing environment db or persist
* log
* @param historyMap map to populate (or null for a dry run)
* @return number of records
* @throws DatabaseException
* @throws IOException
*/
public static int copyPersistSourceToHistoryMap(
File sourceFile, StoredSortedMap<String, Map> historyMap)
throws DatabaseException, IOException {
// delegate depending on the source
if (sourceFile.isDirectory()) {
return copyPersistEnv(sourceFile, historyMap);
} else {
BufferedReader persistLogReader = ArchiveUtils.getBufferedReader(sourceFile);
return populatePersistEnvFromLog(persistLogReader, historyMap);
}
}
/**
* Populates an environment db from a persist log. If historyMap is not provided, only logs the
* entries that would have been populated.
*
* @param persistLogReader persist log
* @param historyMap new environment db (or null for a dry run)
* @return number of records
* @throws UnsupportedEncodingException
* @throws DatabaseException
*/
private static int populatePersistEnvFromLog(
BufferedReader persistLogReader, StoredSortedMap<String, Map> historyMap)
throws UnsupportedEncodingException, DatabaseException {
int count = 0;
Iterator<String> iter = new LineReadingIterator(persistLogReader);
while (iter.hasNext()) {
String line = iter.next();
if (line.length() == 0) {
continue;
}
String[] splits = line.split(" ");
if (splits.length != 2) {
logger.severe("bad line has " + splits.length + " fields (should be 2): " + line);
continue;
}
Map alist;
try {
alist =
(Map) SerializationUtils.deserialize(Base64.decodeBase64(splits[1].getBytes("UTF-8")));
} catch (Exception e) {
logger.severe("caught exception " + e + " deserializing line: " + line);
continue;
}
if (logger.isLoggable(Level.FINE)) {
logger.fine(splits[0] + " " + ArchiveUtils.prettyString(alist));
}
if (historyMap != null)
try {
historyMap.put(splits[0], alist);
} catch (Exception e) {
logger.log(
Level.SEVERE,
"caught exception after loading "
+ count
+ " urls from the persist log (perhaps crawl was stopped by user?)",
e);
IOUtils.closeQuietly(persistLogReader);
// seems to finish most cleanly when we return rather than throw something
return count;
}
count++;
}
IOUtils.closeQuietly(persistLogReader);
return count;
}
/**
* Calculate the insertKey that places a CrawlURI in the desired spot. First bytes are always
* classKey (usu. host) based -- ensuring grouping by host -- terminated by a zero byte. Then 8
* bytes of data ensuring desired ordering within that 'queue' are used. The first byte of these 8
* is priority -- allowing 'immediate' and 'soon' items to sort above regular. Next 1 byte is
* 'precedence'. Last 6 bytes are ordinal serial number, ensuring earlier-discovered URIs sort
* before later.
*
* <p>NOTE: Dangers here are: (1) priorities or precedences over 2^7 (signed byte comparison) (2)
* ordinals over 2^48
*
* <p>Package access & static for testing purposes.
*
* @param curi
* @return a DatabaseEntry key for the CrawlURI
*/
static DatabaseEntry calculateInsertKey(CrawlURI curi) {
byte[] classKeyBytes = null;
int len = 0;
classKeyBytes = curi.getClassKey().getBytes(Charsets.UTF_8);
len = classKeyBytes.length;
byte[] keyData = new byte[len + 9];
System.arraycopy(classKeyBytes, 0, keyData, 0, len);
keyData[len] = 0;
long ordinalPlus = curi.getOrdinal() & 0x0000FFFFFFFFFFFFL;
ordinalPlus = ((long) curi.getSchedulingDirective() << 56) | ordinalPlus;
long precedence = Math.min(curi.getPrecedence(), 127);
ordinalPlus = (((precedence) & 0xFFL) << 48) | ordinalPlus;
ArchiveUtils.longIntoByteArray(ordinalPlus, keyData, len + 1);
return new DatabaseEntry(keyData);
}
private void seriousError(Error err) {
// try to prevent timeslicing until we have a chance to deal with OOM
// Note that modern-day JVM priority indifference with native threads
// may make this priority-jumbling pointless
setPriority(DEFAULT_PRIORITY + 1);
if (controller != null) {
// hold all ToeThreads from proceeding to next processor
controller.freeReserveMemory();
controller.requestCrawlPause();
if (controller.getFrontier().getFrontierJournal() != null) {
controller.getFrontier().getFrontierJournal().seriousError(getName() + err.getMessage());
}
}
// OutOfMemory etc.
String extraInfo = DevUtils.extraInfo();
System.err.println("<<<");
System.err.println(ArchiveUtils.getLog17Date());
System.err.println(err);
System.err.println(extraInfo);
err.printStackTrace(System.err);
if (controller != null) {
PrintWriter pw = new PrintWriter(System.err);
controller.getToePool().compactReportTo(pw);
pw.flush();
}
System.err.println(">>>");
// DevUtils.sigquitSelf();
String context = "unknown";
if (currentCuri != null) {
// update fetch-status, saving original as annotation
currentCuri.getAnnotations().add("err=" + err.getClass().getName());
currentCuri.getAnnotations().add("os" + currentCuri.getFetchStatus());
currentCuri.setFetchStatus(S_SERIOUS_ERROR);
context = currentCuri.shortReportLine() + " in " + currentProcessorName;
}
String message = "Serious error occured trying " + "to process '" + context + "'\n" + extraInfo;
logger.log(Level.SEVERE, message.toString(), err);
setPriority(DEFAULT_PRIORITY);
}
/** Explode the archive into its constituent elements */
public void explode() throws CacheException {
int goodEntries = 0;
int badEntries = 0;
int entriesBetweenSleep = 0;
ArchiveReader arcReader = null;
logger.debug(
(storeArchive ? "Storing" : "Fetching") + " WARC file: " + origUrl + " will explode");
try {
// Wrap it in an ArchiveReader
logger.debug3("About to wrap stream");
arcReader = wrapStream(fetchUrl, arcStream);
logger.debug3("wrapStream() returns " + (arcReader == null ? "null" : "non-null"));
// Explode it
if (arcReader == null) {
throw new CacheException.ExploderException("no WarcReader for " + origUrl);
}
ArchivalUnit au = crawlFacade.getAu();
logger.debug("Exploding " + fetchUrl);
// Iterate through the elements in the WARC file, except the first
Iterator<ArchiveRecord> iter = arcReader.iterator();
// Skip first record
if (iter.hasNext()) iter.next();
while (iter.hasNext()) {
helper.pokeWDog();
// check need to pause
handlePause(++entriesBetweenSleep);
// handle each element in the archive
ArchiveRecord element = iter.next();
// Each element is a URL to be cached in our AU
ArchiveRecordHeader elementHeader = element.getHeader();
String elementUrl = elementHeader.getUrl();
String elementMimeType = elementHeader.getMimetype();
long elementLength = elementHeader.getLength();
long elementDate;
try {
elementDate = ArchiveUtils.parse14DigitDate(elementHeader.getDate()).getTime();
} catch (ParseException e) {
elementDate = 0;
}
logger.debug2("WARC url " + elementUrl + " mime " + elementMimeType);
// add check to determine if this is a url which should be cached
if (au.shouldBeCached(elementUrl) && elementUrl.startsWith("http:")) {
ArchiveEntry ae =
new ArchiveEntry(
elementUrl,
elementLength,
elementDate,
element, // ArchiveRecord extends InputStream
this,
fetchUrl);
ae.setHeaderFields(makeCIProperties(elementHeader));
long bytesStored = elementLength;
logger.debug3("ArchiveEntry: " + ae.getName() + " bytes " + bytesStored);
try {
helper.process(ae);
} catch (PluginException ex) {
throw new CacheException.ExploderException("helper.process() threw", ex);
}
if (ae.getBaseUrl() != null) {
if (ae.getRestOfUrl() != null && ae.getHeaderFields() != null) {
storeEntry(ae);
handleAddText(ae);
goodEntries++;
// this needs to use the correct depth ? how
CrawlUrlData cud = new CrawlUrlData(elementUrl, 0);
crawlFacade.addToParseQueue(cud);
crawlFacade.getCrawlerStatus().addContentBytesFetched(bytesStored);
}
} else {
badEntries++;
logger.debug2("Can't map " + elementUrl + " from " + archiveUrl);
}
}
}
} catch (IOException ex) {
throw new CacheException.ExploderException(ex);
} finally {
if (arcReader != null) {
try {
arcReader.close();
} catch (IOException ex) {
throw new CacheException.ExploderException(ex);
}
}
IOUtil.safeClose(arcStream);
}
// report failed fetches
if (badEntries != 0) {
String msg = archiveUrl + ": " + badEntries + "/" + goodEntries + " bad entries";
throw new CacheException.UnretryableException(msg);
}
}
public String shortReportLine() {
return ArchiveUtils.shortReportLine(this);
}
/**
* (non-Javadoc)
*
* @see java.lang.Thread#run()
*/
public void run() {
String name = controller.getMetadata().getJobName();
logger.fine(getName() + " started for order '" + name + "'");
Recorder.setHttpRecorder(httpRecorder);
try {
while (true) {
ArchiveUtils.continueCheck();
setStep(Step.ABOUT_TO_GET_URI, null);
CrawlURI curi = controller.getFrontier().next();
synchronized (this) {
ArchiveUtils.continueCheck();
setCurrentCuri(curi);
currentCuri.setThreadNumber(this.serialNumber);
lastStartTime = System.currentTimeMillis();
currentCuri.setRecorder(httpRecorder);
}
try {
KeyedProperties.loadOverridesFrom(curi);
controller.getFetchChain().process(curi, this);
controller.getFrontier().beginDisposition(curi);
controller.getDispositionChain().process(curi, this);
} catch (RuntimeExceptionWrapper e) {
// Workaround to get cause from BDB
if (e.getCause() == null) {
e.initCause(e.getCause());
}
recoverableProblem(e);
} catch (AssertionError ae) {
// This risks leaving crawl in fatally inconsistent state,
// but is often reasonable for per-Processor assertion problems
recoverableProblem(ae);
} catch (RuntimeException e) {
recoverableProblem(e);
} catch (InterruptedException e) {
if (currentCuri != null) {
recoverableProblem(e);
Thread.interrupted(); // clear interrupt status
} else {
throw e;
}
} catch (StackOverflowError err) {
recoverableProblem(err);
} catch (Error err) {
// OutOfMemory and any others
seriousError(err);
} finally {
KeyedProperties.clearOverridesFrom(curi);
}
setStep(Step.ABOUT_TO_RETURN_URI, null);
ArchiveUtils.continueCheck();
synchronized (this) {
controller.getFrontier().finished(currentCuri);
controller.getFrontier().endDisposition();
setCurrentCuri(null);
}
setStep(Step.FINISHING_PROCESS, null);
lastFinishTime = System.currentTimeMillis();
if (shouldRetire) {
break; // from while(true)
}
}
} catch (InterruptedException e) {
if (currentCuri != null) {
logger.log(
Level.SEVERE,
"Interrupt leaving unfinished CrawlURI " + getName() + " - job may hang",
e);
}
// thread interrupted, ok to end
logger.log(Level.FINE, this.getName() + " ended with Interruption");
} catch (Exception e) {
// everything else (including interruption)
logger.log(Level.SEVERE, "Fatal exception in " + getName(), e);
} catch (OutOfMemoryError err) {
seriousError(err);
} finally {
controller.getFrontier().endDisposition();
}
setCurrentCuri(null);
// Do cleanup so that objects can be GC.
this.httpRecorder.closeRecorders();
this.httpRecorder = null;
logger.fine(getName() + " finished for order '" + name + "'");
setStep(Step.FINISHED, null);
controller = null;
}
/**
* One independent queue of items with the same 'classKey' (eg host).
*
* @author gojomo
*/
public class BdbWorkQueue extends WorkQueue implements Comparable, Serializable {
private static Logger LOGGER = Logger.getLogger(BdbWorkQueue.class.getName());
// be robust against trivial implementation changes
private static final long serialVersionUID =
ArchiveUtils.classnameBasedUID(BdbWorkQueue.class, 1);
/** All items in this queue have this same 'origin' prefix to their keys. */
private byte[] origin;
/**
* Create a virtual queue inside the given BdbMultipleWorkQueues
*
* @param classKey
*/
public BdbWorkQueue(String classKey, BdbFrontier frontier) {
super(classKey);
this.origin = BdbMultipleWorkQueues.calculateOriginKey(classKey);
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.fine(getPrefixClassKey(this.origin) + " " + classKey);
}
// add the queue-front 'cap' entry; see...
// http://sourceforge.net/tracker/index.php?func=detail&aid=1262665&group_id=73833&atid=539102
frontier.getWorkQueues().addCap(origin);
}
protected long deleteMatchingFromQueue(final WorkQueueFrontier frontier, final String match)
throws IOException {
try {
final BdbMultipleWorkQueues queues = ((BdbFrontier) frontier).getWorkQueues();
return queues.deleteMatchingFromQueue(match, classKey, new DatabaseEntry(origin));
} catch (DatabaseException e) {
throw IoUtils.wrapAsIOException(e);
}
}
protected void deleteItem(final WorkQueueFrontier frontier, final CrawlURI peekItem)
throws IOException {
try {
final BdbMultipleWorkQueues queues = ((BdbFrontier) frontier).getWorkQueues();
queues.delete(peekItem);
} catch (DatabaseException e) {
e.printStackTrace();
throw IoUtils.wrapAsIOException(e);
}
}
protected CrawlURI peekItem(final WorkQueueFrontier frontier) throws IOException {
final BdbMultipleWorkQueues queues = ((BdbFrontier) frontier).getWorkQueues();
DatabaseEntry key = new DatabaseEntry(origin);
CrawlURI curi = null;
int tries = 1;
while (true) {
try {
curi = queues.get(key);
} catch (DatabaseException e) {
LOGGER.log(Level.SEVERE, "peekItem failure; retrying", e);
}
// ensure CrawlURI, if any, came from acceptable range:
if (!ArchiveUtils.startsWith(key.getData(), origin)) {
LOGGER.severe(
"inconsistency: "
+ classKey
+ "("
+ getPrefixClassKey(origin)
+ ") with "
+ getCount()
+ " items gave "
+ curi
+ "("
+ getPrefixClassKey(key.getData()));
// clear curi to allow retry
curi = null;
// reset key to original origin for retry
key.setData(origin);
}
if (curi != null) {
// success
break;
}
if (tries > 3) {
LOGGER.severe("no item where expected in queue " + classKey);
break;
}
tries++;
LOGGER.severe(
"Trying get #"
+ Integer.toString(tries)
+ " in queue "
+ classKey
+ " with "
+ getCount()
+ " items using key "
+ getPrefixClassKey(key.getData()));
}
return curi;
}
protected void insertItem(
final WorkQueueFrontier frontier, final CrawlURI curi, boolean overwriteIfPresent)
throws IOException {
try {
final BdbMultipleWorkQueues queues = ((BdbFrontier) frontier).getWorkQueues();
queues.put(curi, overwriteIfPresent);
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.fine(
"Inserted into "
+ getPrefixClassKey(this.origin)
+ " (count "
+ Long.toString(getCount())
+ "): "
+ curi.toString());
}
} catch (DatabaseException e) {
throw IoUtils.wrapAsIOException(e);
}
}
/**
* @param byteArray Byte array to get hex string of.
* @return Hex string of passed in byte array (Used logging key-prefixes).
*/
protected static String getPrefixClassKey(final byte[] byteArray) {
int zeroIndex = 0;
while (byteArray[zeroIndex] != 0) {
zeroIndex++;
}
try {
return new String(byteArray, 0, zeroIndex, "UTF-8");
} catch (UnsupportedEncodingException e) {
// should be impossible; UTF-8 always available
e.printStackTrace();
return e.getMessage();
}
}
}
/**
* Populates a given StoredSortedMap (history map) from an old persist log. If a map is not
* provided, only logs the entries that would have been populated.
*
* @param sourceUrl url of source persist log
* @param historyMap map to populate (or null for a dry run)
* @return number of records
* @throws DatabaseException
* @throws IOException
*/
public static int copyPersistSourceToHistoryMap(
URL sourceUrl, StoredSortedMap<String, Map> historyMap)
throws DatabaseException, IOException {
BufferedReader persistLogReader = ArchiveUtils.getBufferedReader(sourceUrl);
return populatePersistEnvFromLog(persistLogReader, historyMap);
}
@Override
public void map(
Text key, WritableArchiveRecord value, OutputCollector<Text, Text> output, Reporter reporter)
throws IOException {
ArchiveRecord record = value.getRecord();
ArchiveRecordHeader header = record.getHeader();
// Logging for debug info:
log.debug(
"Processing @"
+ header.getOffset()
+ "+"
+ record.available()
+ ","
+ header.getLength()
+ ": "
+ header.getUrl());
for (String h : header.getHeaderFields().keySet()) {
log.debug("ArchiveHeader: " + h + " -> " + header.getHeaderValue(h));
}
try {
MDX mdx = new MDX();
Date crawl_date = ArchiveUtils.parse14DigitISODate(header.getDate(), null);
if (crawl_date != null) {
mdx.setTs(ArchiveUtils.get14DigitDate(crawl_date));
} else {
mdx.setTs(header.getDate());
}
mdx.setUrl(header.getUrl());
mdx.setHash(header.getDigest());
// Data from WARC record:
mdx.put("source-file", key.toString());
mdx.put("content-type", header.getMimetype());
mdx.put("content-length", "" + header.getContentLength());
mdx.put("length", "" + header.getLength());
mdx.put("source-offset", "" + header.getOffset());
mdx.put("record-identifier", header.getRecordIdentifier());
for (String k : header.getHeaderFieldKeys()) {
mdx.put("HEADER-" + k, "" + header.getHeaderValue(k));
}
// check record type and look for HTTP data:
Header[] httpHeaders = null;
if (record instanceof WARCRecord) {
mdx.setRecordType("warc." + header.getHeaderValue(HEADER_KEY_TYPE));
mdx.setHash("" + header.getHeaderValue(WARCConstants.HEADER_KEY_PAYLOAD_DIGEST));
// There are not always headers! The code should check first.
String statusLine = HttpParser.readLine(record, "UTF-8");
if (statusLine != null && statusLine.startsWith("HTTP")) {
String firstLine[] = statusLine.split(" ");
if (firstLine.length > 1) {
String statusCode = firstLine[1].trim();
mdx.put("status-code", statusCode);
try {
httpHeaders = HttpParser.parseHeaders(record, "UTF-8");
} catch (ProtocolException p) {
log.error(
"ProtocolException ["
+ statusCode
+ "]: "
+ header.getHeaderValue(WARCConstants.HEADER_KEY_FILENAME)
+ "@"
+ header.getHeaderValue(WARCConstants.ABSOLUTE_OFFSET_KEY),
p);
}
} else {
log.warn("Could not parse status line: " + statusLine);
}
} else {
log.warn(
"Invalid status line: "
+ header.getHeaderValue(WARCConstants.HEADER_KEY_FILENAME)
+ "@"
+ header.getHeaderValue(WARCConstants.ABSOLUTE_OFFSET_KEY));
}
} else if (record instanceof ARCRecord) {
mdx.setRecordType("arc");
ARCRecord arcr = (ARCRecord) record;
mdx.put("status-code", "" + arcr.getStatusCode());
httpHeaders = arcr.getHttpHeaders();
} else {
mdx.setRecordType("unknown");
}
// Add in http headers
if (httpHeaders != null) {
for (Header h : httpHeaders) {
mdx.put("HTTP-" + h.getName(), h.getValue());
}
}
// URL:
String uri = header.getUrl();
if (uri != null) {
UsableURI uuri = UsableURIFactory.getInstance(uri);
// Hosts:
if ("https".contains(uuri.getScheme())) {
mdx.put("host", uuri.getAuthority());
}
} else {
mdx.put("errors", "malformed-url");
}
// Year
String date = header.getDate();
if (date != null && date.length() > 4) {
mdx.put("year", date.substring(0, 4));
} else {
mdx.put("errors", "malformed-date");
}
// And collect:
String outKey = mdx.getHash();
if (outKey == null || outKey == "" || "null".equals(outKey)) {
outKey = mdx.getRecordType() + ":" + header.getMimetype();
} else {
outKey = mdx.getRecordType() + ":" + outKey;
}
output.collect(new Text(outKey), new Text(mdx.toString()));
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public void _jspService(HttpServletRequest request, HttpServletResponse response)
throws java.io.IOException, ServletException {
JspFactory _jspxFactory = null;
javax.servlet.jsp.PageContext pageContext = null;
HttpSession session = null;
ServletContext application = null;
ServletConfig config = null;
JspWriter out = null;
Object page = this;
JspWriter _jspx_out = null;
try {
_jspxFactory = JspFactory.getDefaultFactory();
response.setContentType("text/html; charset=UTF-8");
pageContext =
_jspxFactory.getPageContext(this, request, response, "/error.jsp", true, 8192, true);
application = pageContext.getServletContext();
config = pageContext.getServletConfig();
session = pageContext.getSession();
out = pageContext.getOut();
_jspx_out = out;
out.write("\n");
out.write("\n");
out.write("\n");
out.write("\n");
/** This include page ensures that the handler exists and is ready to be accessed. */
CrawlJobHandler handler = (CrawlJobHandler) application.getAttribute("handler");
Heritrix heritrix = (Heritrix) application.getAttribute("heritrix");
// If handler is empty then this is the first time this bit of code is
// being run since the server came online. In that case get or create the
// handler.
if (handler == null) {
if (Heritrix.isSingleInstance()) {
heritrix = Heritrix.getSingleInstance();
handler = heritrix.getJobHandler();
application.setAttribute("heritrix", heritrix);
application.setAttribute("handler", handler);
} else {
// TODO:
// If we get here, then there are multiple heritrix instances
// and we have to put up a screen allowing the user choose between.
// Otherwise, there is no Heritrix instance. Thats a problem.
throw new RuntimeException(
"No heritrix instance (or multiple "
+ "to choose from and we haven't implemented this yet)");
}
}
// ensure controller's settingsHandler is always thread-installed
// in web ui threads
if (handler != null) {
CrawlJob job = handler.getCurrentJob();
if (job != null) {
CrawlController controller = job.getController();
if (controller != null) {
controller.installThreadContextSettingsHandler();
}
}
}
out.write("\n");
out.write("\n\n");
String title = "Help";
int tab = 6;
out.write("\n\n");
out.write("\n");
out.write("\n");
out.write("\n");
out.write("\n");
out.write("\n");
out.write("\n");
out.write("\n");
out.write("\n");
out.write("\n");
out.write("\n");
out.write("\n");
String currentHeritrixName =
(heritrix == null)
? "No current Heritrix instance"
: (heritrix.getMBeanName() == null)
? heritrix.getInstances().keySet().iterator().next().toString()
: heritrix.getMBeanName().toString();
/**
* An include file that handles the "look" and navigation of a web page. Include at top (where
* you would normally begin the HTML code). If used, the include "foot.jsp" should be included
* at the end of the HTML code. It will close any table, body and html tags left open in this
* one. Any custom HTML code is thus placed between the two.
*
* <p>The following variables must exist prior to this file being included:
*
* <p>String title - Title of the web page int tab - Which to display as 'selected'. 0 -
* Console 1 - Jobs 2 - Profiles 3 - Logs 4 - Reports 5 - Settings 6 - Help
*
* <p>SimpleHandler handler - In general this is provided by the include page 'handler.jsp'
* which should be included prior to this one.
*
* @author Kristinn Sigurdsson
*/
String shortJobStatus = null;
if (handler.getCurrentJob() != null) {
shortJobStatus = TextUtils.getFirstWord(handler.getCurrentJob().getStatus());
}
String favicon = System.getProperties().getProperty("heritrix.favicon", "h.ico");
out.write("\n");
StatisticsTracker stats = null;
if (handler.getCurrentJob() != null) {
// Assume that StatisticsTracker is being used.
stats = (StatisticsTracker) handler.getCurrentJob().getStatisticsTracking();
}
out.write("\n");
out.write("\n\n");
out.write("<html>\n ");
out.write("<head>\n \t");
out.write(
"<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\"/>\n ");
out.write("<title>Heritrix: ");
out.print(title);
out.write("</title>\n ");
out.write("<link rel=\"stylesheet\" \n href=\"");
out.print(request.getContextPath());
out.write("/css/heritrix.css\">\n ");
out.write("<link rel=\"icon\" href=\"");
out.print(request.getContextPath());
out.write("/images/");
out.print(favicon);
out.write("\" type=\"image/x-icon\" />\n ");
out.write("<link rel=\"shortcut icon\" href=\"");
out.print(request.getContextPath());
out.write("/images/");
out.print(favicon);
out.write("\" type=\"image/x-icon\" />\n ");
out.write("<script src=\"/js/util.js\">\n ");
out.write("</script>\n ");
out.write("</head>\n\n ");
out.write("<body>\n ");
out.write(
"<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"100%\">\n ");
out.write("<tr>\n ");
out.write("<td>\n ");
out.write(
"<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\" height=\"100%\">\n ");
out.write("<tr>\n ");
out.write(
"<td height=\"60\" width=\"155\" valign=\"top\" nowrap>\n ");
out.write(
"<table border=\"0\" width=\"155\" cellspacing=\"0\" cellpadding=\"0\" height=\"60\">\n ");
out.write("<tr>\n ");
out.write(
"<td align=\"center\" height=\"40\" valign=\"bottom\">\n ");
out.write("<a border=\"0\" \n href=\"");
out.print(request.getContextPath());
out.write("/index.jsp\">");
out.write("<img border=\"0\" src=\"");
out.print(request.getContextPath());
out.write("/images/logo.gif\" height=\"37\" width=\"145\">");
out.write("</a>\n ");
out.write("</td>\n ");
out.write("</tr>\n ");
out.write("<tr>\n ");
out.write("<td class=\"subheading\">\n ");
out.print(title);
out.write("\n ");
out.write("</td>\n ");
out.write("</tr>\n ");
out.write("</table>\n ");
out.write("</td>\n ");
out.write(
"<td width=\"5\" nowrap>\n \n ");
out.write("</td>\n ");
out.write("<td width=\"460\" align=\"left\" nowrap>\n ");
out.write(
"<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\" height=\"60\">\n ");
out.write("<tr>\n ");
out.write("<td colspan=\"2\" nowrap>\n ");
SimpleDateFormat sdf = new SimpleDateFormat("MMM. d, yyyy HH:mm:ss");
sdf.setTimeZone(java.util.TimeZone.getTimeZone("GMT"));
out.write("\n ");
out.write("<b>\n Status as of ");
out.write("<a style=\"color: #000000\" href=\"");
out.print(request.getRequestURL());
out.write("\">");
out.print(sdf.format(new java.util.Date()));
out.write(" GMT");
out.write("</a>\n ");
out.write(
"</b>\n \n ");
out.write("<span style=\"text-align:right\">\n ");
out.write(
"<b>\n Alerts: \n ");
out.write("</b>\n ");
if (heritrix.getAlertsCount() == 0) {
out.write("\n ");
out.write("<a style=\"color: #000000; text-decoration: none\" href=\"");
out.print(request.getContextPath());
out.write("/console/alerts.jsp\">no alerts");
out.write("</a>\n ");
} else if (heritrix.getNewAlertsCount() > 0) {
out.write("\n ");
out.write("<b>");
out.write("<a href=\"");
out.print(request.getContextPath());
out.write("/console/alerts.jsp\">");
out.print(heritrix.getAlerts().size());
out.write(" (");
out.print(heritrix.getNewAlertsCount());
out.write(" new)");
out.write("</a>");
out.write("</b>\n ");
} else {
out.write("\n ");
out.write("<a style=\"color: #000000\" href=\"");
out.print(request.getContextPath());
out.write("/console/alerts.jsp\">");
out.print(heritrix.getAlertsCount());
out.write(" (");
out.print(heritrix.getNewAlertsCount());
out.write(" new)");
out.write("</a>\n ");
}
out.write("\n ");
out.write("</span>\n ");
out.write("</td>\n ");
out.write("</tr>\n ");
out.write("<tr>\n ");
out.write("<td valign=\"top\" nowrap>\n\t\t\t\t\t\t\t\t\t\t");
out.print(
handler.isRunning()
? "<span class='status'>Crawling Jobs</span>"
: "<span class='status'>Holding Jobs</span>");
out.write("<i> ");
out.write("</i>\n\t\t\t\t\t\t\t\t\t\t");
out.write("</td>\n\t\t\t\t\t\t\t\t\t\t");
out.write("<td valign=\"top\" align=\"right\" nowrap>\n\t\t\t\t\t\t\t\t\t\t");
if (handler.isRunning() || handler.isCrawling()) {
if (handler.getCurrentJob() != null) {
out.write("\n\t\t\t\t\t\t\t\t\t\t");
out.write("<span class='status'>\n\t\t\t\t\t\t\t\t\t\t");
out.print(shortJobStatus);
out.write("</span> job:\n\t\t\t\t\t\t\t\t\t\t");
out.write("<i>");
out.print(handler.getCurrentJob().getJobName());
out.write("</i>\n\t\t\t\t\t\t\t\t\t\t");
} else {
out.println("No job ready <a href=\"");
out.println(request.getContextPath());
out.println("/jobs.jsp\" style='color: #000000'>(create new)</a>");
}
}
out.write("\n\t\t\t\t\t\t\t\t\t\t");
out.write("</td>\n ");
out.write("</tr>\n ");
out.write("<tr>\n ");
out.write("<td nowrap>\n ");
out.print(handler.getPendingJobs().size());
out.write(
"\n jobs\n ");
out.write("<a style=\"color: #000000\" href=\"");
out.print(request.getContextPath());
out.write("/jobs.jsp#pending\">pending");
out.write("</a>,\n ");
out.print(handler.getCompletedJobs().size());
out.write("\n ");
out.write("<a style=\"color: #000000\" href=\"");
out.print(request.getContextPath());
out.write("/jobs.jsp#completed\">completed");
out.write(
"</a>\n \n ");
out.write("</td>\n ");
out.write("<td nowrap align=\"right\">\n ");
if (handler.isCrawling()) {
out.write("\n ");
out.print((stats != null) ? stats.successfullyFetchedCount() : 0);
out.write(" URIs in \n\t\t ");
out.print(
ArchiveUtils.formatMillisecondsToConventional(
((stats != null) ? (stats.getCrawlerTotalElapsedTime()) : 0), false));
out.write("\n\t\t (");
out.print(
ArchiveUtils.doubleToString(
((stats != null) ? stats.currentProcessedDocsPerSec() : 0), 2));
out.write("/sec)\n ");
}
out.write("\n ");
out.write("</td>\n ");
out.write("</tr>\n ");
out.write("</table>\n ");
out.write("</td>\n ");
out.write("</tr>\n ");
out.write("</table>\n ");
out.write("</td>\n ");
out.write("<td width=\"100%\" nowrap>\n \n ");
out.write("</td>\n ");
out.write("</tr>\n ");
out.write("<tr>\n ");
out.write("<td bgcolor=\"#0000FF\" height=\"1\" colspan=\"4\">\n ");
out.write("</td>\n ");
out.write("</tr>\n ");
out.write("<tr>\n ");
out.write("<td colspan=\"4\" height=\"20\">\n ");
out.write(
"<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"100%\" height=\"20\">\n ");
out.write("<tr>\n ");
out.write("<td class=\"tab_seperator\"> ");
out.write("</td>\n ");
out.write("<td class=\"tab");
out.print(tab == 0 ? "_selected" : "");
out.write("\">\n ");
out.write("<a href=\"");
out.print(request.getContextPath());
out.write("/index.jsp\" class=\"tab_text");
out.print(tab == 0 ? "_selected" : "");
out.write("\">Console");
out.write("</a>\n ");
out.write("</td>\n ");
out.write("<td class=\"tab_seperator\"> ");
out.write("</td>\n ");
out.write("<td class=\"tab");
out.print(tab == 1 ? "_selected" : "");
out.write("\">\n ");
out.write("<a href=\"");
out.print(request.getContextPath());
out.write("/jobs.jsp\" class=\"tab_text");
out.print(tab == 1 ? "_selected" : "");
out.write("\">Jobs");
out.write("</a>\n ");
out.write("</td>\n ");
out.write("<td class=\"tab_seperator\"> ");
out.write("</td>\n ");
out.write("<td class=\"tab");
out.print(tab == 2 ? "_selected" : "");
out.write("\">\n ");
out.write("<a href=\"");
out.print(request.getContextPath());
out.write("/profiles.jsp\" class=\"tab_text");
out.print(tab == 2 ? "_selected" : "");
out.write("\">Profiles");
out.write("</a>\n ");
out.write("</td>\n ");
out.write("<td class=\"tab_seperator\"> ");
out.write("</td>\n ");
out.write("<td class=\"tab");
out.print(tab == 3 ? "_selected" : "");
out.write("\">\n ");
out.write("<a href=\"");
out.print(request.getContextPath());
out.write("/logs.jsp\" class=\"tab_text");
out.print(tab == 3 ? "_selected" : "");
out.write("\">Logs");
out.write("</a>\n ");
out.write("</td>\n ");
out.write("<td class=\"tab_seperator\"> ");
out.write("</td>\n ");
out.write("<td class=\"tab");
out.print(tab == 4 ? "_selected" : "");
out.write("\">\n ");
out.write("<a href=\"");
out.print(request.getContextPath());
out.write("/reports.jsp\" class=\"tab_text");
out.print(tab == 4 ? "_selected" : "");
out.write("\">Reports");
out.write("</a>\n ");
out.write("</td>\n ");
out.write("<td class=\"tab_seperator\"> ");
out.write("</td>\n ");
out.write("<td class=\"tab");
out.print(tab == 5 ? "_selected" : "");
out.write("\">\n ");
out.write("<a href=\"");
out.print(request.getContextPath());
out.write("/setup.jsp\" class=\"tab_text");
out.print(tab == 5 ? "_selected" : "");
out.write("\">Setup");
out.write("</a>\n ");
out.write("</td>\n ");
out.write("<td class=\"tab_seperator\"> ");
out.write("</td>\n ");
out.write("<td class=\"tab");
out.print(tab == 6 ? "_selected" : "");
out.write("\">\n ");
out.write("<a href=\"");
out.print(request.getContextPath());
out.write("/help.jsp\" class=\"tab_text");
out.print(tab == 6 ? "_selected" : "");
out.write("\">Help");
out.write("</a>\n ");
out.write("</td>\n ");
out.write("<td width=\"100%\">\n ");
out.write("</td>\n ");
out.write("</tr>\n ");
out.write("</table>\n ");
out.write("</td>\n ");
out.write("</tr>\n ");
out.write("<tr>\n ");
out.write("<td bgcolor=\"#0000FF\" height=\"1\" colspan=\"4\">");
out.write("</td>\n ");
out.write("</tr>\n ");
out.write("</table>\n ");
out.write("<!-- MAIN BODY -->\n");
out.write("\n\n");
out.write("<div class=\"margined\">\n ");
out.write("<h1>Heritrix online help");
out.write("</h1>\n");
out.write("<p>\n ");
out.write("<b>");
out.write("<a href=\"");
out.print(request.getContextPath());
out.write("/about.jsp\">About Heritrix");
out.write("</a>");
out.write("</b>");
out.write("</br>\n Includes license and current environment information.\n");
out.write("</p>\n");
out.write("<p>\n ");
out.write("<b>");
out.write("<a target=\"_blank\" \n href=\"");
out.print(request.getContextPath());
out.write("/docs/articles/user_manual/index.html\">User\n Manual");
out.write("</a>");
out.write("</b>");
out.write(
"<br> Covers creating, configuring, launching,\n monitoring and analysing crawl jobs. For all users.\n");
out.write("</p>\n");
out.write("<p>\n ");
out.write("<b>");
out.write("<a target=\"_blank\" \n href=\"");
out.print(request.getContextPath());
out.write("/docs/articles/developer_manual/index.html\">Developer Manual");
out.write("</a>");
out.write("</b>");
out.write(
"<br> Covers how to write add on modules for Heritrix\n and provides in depth coverage of Heritrix's architecture. For\n advanced users.\n");
out.write("</p>\n");
out.write("<p>\n ");
out.write("<b>");
out.write("<a target=\"_blank\" \n href=\"");
out.print(request.getContextPath());
out.write("/docs/articles/releasenotes/index.html\">Release Notes");
out.write("</a>");
out.write("</b>");
out.write("<br>\n");
out.write("</p>\n");
out.write("<p>\n\t");
out.write("<b>");
out.write(
"<a href=\"http://crawler.archive.org/issue-tracking.html\" target=\"_blank\">Issue Tracking");
out.write("</a>");
out.write("</b>");
out.write(
"<br />\n\tIf you have found a bug or would like to see new features in Heritrix, check the following links:\n\t");
out.write("<ul>\n\t\t");
out.write("<li>");
out.write(
"<a href=\"http://sourceforge.net/tracker/?atid=539099&group_id=73833&func=browse\" target=\"_blank\">Bugs");
out.write("</a>");
out.write("</li>\n\t\t");
out.write("<li>");
out.write(
"<a href=\"http://sourceforge.net/tracker/?atid=539102&group_id=73833&func=browse\" target=\"_blank\">Feature Requests");
out.write("</a>");
out.write("</li>\n\t");
out.write("</ul>\n");
out.write("</p>\n");
out.write("<p>\n ");
out.write("<b>");
out.write(
"<a href=\"http://crawler.archive.org/mail-lists.html\" target=\"_blank\">Mailing Lists");
out.write("</a>");
out.write("</b>");
out.write("<br />\n For general discussion on Heritrix, use our ");
out.write(
"<a href=\"http://groups.yahoo.com/group/archive-crawler/\" target=\"_blank\">Crawler Discussion List");
out.write("</a>.\n");
out.write("</p>\n");
out.write("<p>\n ");
out.write("<b>");
out.write("<a href=\"");
out.print(request.getContextPath());
out.write("/help/regexpr.jsp\">Regular Expressions");
out.write("</a>");
out.write("</b>");
out.write(
"<br />\n Information about the regular expressions used in Heritrix and a tool to double check that your regular expressions are valid and that they correctly identify the desired strings.\n");
out.write("</p>\n");
out.write("<p>\n ");
out.write("<b>");
out.write("<a href=\"");
out.print(request.getContextPath());
out.write("/help/codes.jsp\">URI Fetch Status Codes");
out.write("</a>");
out.write("</b>");
out.write(
"<br />\n This reference details what each of the fetch status codes assigned to URIs means.\n");
out.write("</p>\n");
out.write("<hr />\n");
out.write("<font size=\"-1\">Heritrix version @VERSION@");
out.write("</font>\n");
out.write("</div>\n");
/**
* An include file that handles the "look" and navigation of a web page. Wrapps up things
* begun in the "head.jsp" include file. See it for more details.
*
* @author Kristinn Sigurdsson
*/
out.write("\n");
out.write("<br/>\n");
out.write("<br/>\n ");
out.write(
"<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"100%\">\n ");
out.write("<tr>\n ");
out.write("<td bgcolor=\"#0000FF\" height=\"1\" colspan=\"4\">");
out.write("</td>\n ");
out.write("</tr>\n ");
out.write("<tr>\n ");
out.write("<td class=\"instance_name\">Identifier: ");
out.print(currentHeritrixName);
out.write("</td>\n ");
out.write("</tr>\n ");
out.write("</table>\n ");
out.write("<!-- END MAIN BODY -->\n ");
out.write("</body>\n");
out.write("</html>");
out.write("\n");
} catch (Throwable t) {
out = _jspx_out;
if (out != null && out.getBufferSize() != 0) out.clearBuffer();
if (pageContext != null) pageContext.handlePageException(t);
} finally {
if (_jspxFactory != null) _jspxFactory.releasePageContext(pageContext);
}
}
