public AbstractFrontier(String homeDirectory) throws DatabaseException, FileNotFoundException {
// 打开env
File file = new File(homeDirectory);
if (!file.exists()) {
file.mkdirs();
}
System.out.println("Opening environment in: " + homeDirectory);
EnvironmentConfig envConfig = new EnvironmentConfig();
envConfig.setTransactional(true);
envConfig.setAllowCreate(true);
env = new Environment(new File(homeDirectory), envConfig);
// 设置DatabaseConfig
DatabaseConfig dbConfig = new DatabaseConfig();
dbConfig.setTransactional(true);
dbConfig.setAllowCreate(true);
dbConfig.setSortedDuplicates(false);
// 打开
catalogdatabase = env.openDatabase(null, CLASS_CATALOG, dbConfig);
javaCatalog = new StoredClassCatalog(catalogdatabase);
// 设置DatabaseConfig
DatabaseConfig dbConfig0 = new DatabaseConfig();
dbConfig0.setTransactional(true);
dbConfig0.setAllowCreate(true);
// 打开
database = env.openDatabase(null, "URL", dbConfig);
}
/** SR #11123 Make sure that BINDeltas are applied only to non-deleted nodes. */
public void testBINDelta() throws Throwable {
EnvironmentConfig envConfig = TestUtils.initEnvConfig();
turnOffEnvDaemons(envConfig);
envConfig.setConfigParam(EnvironmentParams.NODE_MAX.getName(), "4");
envConfig.setConfigParam(EnvironmentParams.BIN_DELTA_PERCENT.getName(), "75");
envConfig.setAllowCreate(true);
DatabaseConfig dbConfig = new DatabaseConfig();
dbConfig.setAllowCreate(true);
EnvironmentConfig restartConfig = TestUtils.initEnvConfig();
turnOffEnvDaemons(restartConfig);
envConfig.setConfigParam(EnvironmentParams.NODE_MAX.getName(), "4");
testOneCase(
DB_NAME,
envConfig,
dbConfig,
new TestGenerator() {
void generateData(Database db) throws DatabaseException {
addData(db);
}
},
restartConfig,
new DatabaseConfig());
}
public void run(File envHomeDirectory) throws DatabaseException, IOException {
/* Create the environment object. */
EnvironmentConfig envConfig = new EnvironmentConfig();
envConfig.setAllowCreate(true);
Environment env = new Environment(envHomeDirectory, envConfig);
/* Create the database object. */
DatabaseConfig dbConfig = new DatabaseConfig();
dbConfig.setAllowCreate(true);
Database db = env.openDatabase(null, DB_NAME, dbConfig);
/* Create the sequence oject. */
SequenceConfig config = new SequenceConfig();
config.setAllowCreate(true);
DatabaseEntry key = new DatabaseEntry(KEY_NAME.getBytes("UTF-8"));
Sequence seq = db.openSequence(null, key, config);
/* Allocate a few sequence numbers. */
for (int i = 0; i < 10; i++) {
long seqnum = seq.get(null, 1);
System.out.println("Got sequence number: " + seqnum);
}
/* Close all. */
seq.close();
db.close();
env.close();
}
private void setEnvironment() {
envLocation = ConfigManager.getDbDir();
envConfig = new EnvironmentConfig();
envConfig.setAllowCreate(true);
envConfig.setLocking(false);
myDbEnvironment = new Environment(new File(envLocation), envConfig);
}
public static void main(String[] args) {
/*
* Don't write to System.out in this process because the parent
* process only reads System.err.
*/
try {
EnvironmentConfig envConfig = TestUtils.initEnvConfig();
envConfig.setTransactional(true);
envConfig.setReadOnly(true);
File envHome = new File(System.getProperty(TestUtils.DEST_DIR));
Environment env = new Environment(envHome, envConfig);
// System.err.println("Opened read-only: " + envHome);
// System.err.println(System.getProperty("java.class.path"));
/* Notify the test that this process has opened the environment. */
ReadOnlyLockingTest.createProcessFile();
/* Sleep until the parent process kills me. */
Thread.sleep(Long.MAX_VALUE);
} catch (Exception e) {
e.printStackTrace(System.err);
System.exit(1);
}
}
private EnvironmentConfig setupEnvConfig() {
EnvironmentConfig envConfig = TestUtils.initEnvConfig();
turnOffEnvDaemons(envConfig);
envConfig.setConfigParam(EnvironmentParams.NODE_MAX.getName(), "4");
envConfig.setAllowCreate(true);
return envConfig;
}
public boolean initEngine(File envHome) {
EnvironmentConfig envConfig = new EnvironmentConfig();
m_DbConfig = new DatabaseConfig();
// If the environment is read-only, then
// make the databases read-only too.
envConfig.setReadOnly(false);
m_DbConfig.setReadOnly(false);
// If the environment is opened for write, then we want to be
// able to create the environment and databases if
// they do not exist.
envConfig.setAllowCreate(true);
m_DbConfig.setAllowCreate(true);
// Allow transactions if we are writing to the database
envConfig.setTransactional(false);
m_DbConfig.setTransactional(false);
m_DbConfig.setDeferredWrite(true);
envConfig.setLocking(false); // No locking
m_DbConfig.setBtreeComparator(BtreeKeyComparator.class);
// Open the environment
try {
m_env = new Environment(envHome, envConfig);
return true;
} catch (DatabaseException e) {
return false;
}
}
static {
envConfig.setConfigParam(EnvironmentParams.ENV_CHECK_LEAKS.getName(), "false");
envConfig.setConfigParam(EnvironmentParams.NODE_MAX.getName(), "6");
envConfig.setTxnNoSync(Boolean.getBoolean(TestUtils.NO_SYNC));
envConfig.setLockTimeout(1); // to speed up intentional deadlocks
envConfig.setAllowCreate(true);
}
protected void setUp() throws DatabaseException, IOException {
/* Remove files to start with a clean slate. */
TestUtils.removeFiles("Setup", envHome, FileManager.JE_SUFFIX);
EnvironmentConfig envConfig = TestUtils.initEnvConfig();
DbInternal.disableParameterValidation(envConfig);
envConfig.setConfigParam(
EnvironmentParams.LOG_FILE_MAX.getName(), new Integer(FILE_SIZE).toString());
/* Yank the cache size way down. */
envConfig.setConfigParam(EnvironmentParams.LOG_FILE_CACHE_SIZE.getName(), "3");
envConfig.setAllowCreate(true);
envImpl = new EnvironmentImpl(envHome, envConfig);
/* Make a standalone file manager for this test. */
envImpl.close();
envImpl.open(); /* Just sets state to OPEN. */
fileManager = new FileManager(envImpl, envHome, false);
/*
* Remove any files after the environment is created again! We want to
* remove the files made by recovery, so we can test the file manager
* in controlled cases.
*/
TestUtils.removeFiles("Setup", envHome, FileManager.JE_SUFFIX);
}
public BDB_GIDLookupImpl(String aim) {
EnvironmentConfig environmentConfig = new EnvironmentConfig();
// will be created if not existing -> will crash if folder not found
environmentConfig.setAllowCreate(true);
// no transaction yet -> might be needed later
// not sure if needed to be set in environment and database
environmentConfig.setTransactional(false);
File file = new File(aim);
if (!file.exists()) {
file.mkdirs();
}
environment = new Environment(file, environmentConfig);
DatabaseConfig databaseConfig = new DatabaseConfig();
// will be created if not existing -> will crash if folder not found
databaseConfig.setAllowCreate(true);
// no transaction yet -> might be needed later
// not sure if needed to be set in environment and database
databaseConfig.setTransactional(false);
// create 2 "tables" one for relations-gid one for node-gid
RelationBDB = environment.openDatabase(null, "Relation", databaseConfig);
NodeBDB = environment.openDatabase(null, "Node", databaseConfig);
}
private EnvironmentImpl createEnvImpl(File envDir) {
EnvironmentConfig envConfig = new EnvironmentConfig();
envConfig.setAllowCreate(true);
envConfig.setTransactional(true);
Environment backEnv = new Environment(envDir, envConfig);
return DbInternal.getEnvironmentImpl(backEnv);
}
public void setUp() throws IOException, DatabaseException {
TestUtils.removeFiles("Setup", envHome, FileManager.JE_SUFFIX);
EnvironmentConfig envConfig = TestUtils.initEnvConfig();
envConfig.setConfigParam(EnvironmentParams.NODE_MAX.getName(), "6");
envConfig.setAllowCreate(true);
env = new EnvironmentImpl(envHome, envConfig);
}
/* Open read only standalone Environment on replicated nodes. */
private void openEnvironments() throws Exception {
EnvironmentConfig envConfig = new EnvironmentConfig();
envConfig.setReadOnly(true);
envConfig.setAllowCreate(false);
master = new Environment(masterEnvHome, envConfig);
replica = new Environment(replicaEnvHome, envConfig);
}
@Test
public void testCleanAfterMinUtilizationChange() {
open(true /*runCleaner*/);
writeFiles(4 /*nActive*/, 3 /*nObsolete*/);
expectNothingToClean();
final EnvironmentConfig envConfig = env.getConfig();
envConfig.setConfigParam(EnvironmentConfig.CLEANER_MIN_UTILIZATION, "90");
env.setMutableConfig(envConfig);
expectBackgroundCleaning();
close();
}
private EnvironmentConfig makeEnvConfig() {
EnvironmentConfig envConfig = new EnvironmentConfig();
envConfig.setAllowCreate(true);
envConfig.setTransactional(true);
DbInternal.disableParameterValidation(envConfig);
envConfig.setConfigParam(EnvironmentParams.LOG_FILE_MAX.getName(), "10000");
/* Control cleaning explicitly. */
envConfig.setConfigParam(EnvironmentParams.ENV_RUN_CLEANER.getName(), "false");
return envConfig;
}
public static EnhancedEnvironment setupCopyEnvironment(File env, boolean readOnly)
throws DatabaseException {
EnvironmentConfig envConfig = new EnvironmentConfig();
envConfig.setAllowCreate(true);
envConfig.setReadOnly(readOnly);
try {
return new EnhancedEnvironment(env, envConfig);
} catch (IllegalArgumentException iae) {
throw new IllegalArgumentException(
"problem with specified environment " + env + "; is it already open?", iae);
}
}
private static void setDurability(
EnvironmentConfig envConfig, boolean dbTxnNoSync, boolean dbTxnWriteNoSync)
throws ConfigException {
if (dbTxnNoSync && dbTxnWriteNoSync) {
throw new ConfigException(ERR_CONFIG_JEB_DURABILITY_CONFLICT.get());
}
if (dbTxnNoSync) {
envConfig.setDurability(Durability.COMMIT_NO_SYNC);
} else if (dbTxnWriteNoSync) {
envConfig.setDurability(Durability.COMMIT_WRITE_NO_SYNC);
}
}
/**
* Set an attribute value for the given environment.
*
* @param targetEnv The target JE environment. May be null if the environment is not open.
* @param attribute name/value pair
*/
public void setAttribute(Environment targetEnv, Attribute attribute)
throws AttributeNotFoundException, InvalidAttributeValueException {
if (attribute == null) {
throw new AttributeNotFoundException("Attribute cannot be null");
}
/* Sanity check parameters. */
String name = attribute.getName();
Object value = attribute.getValue();
if (name == null) {
throw new AttributeNotFoundException("Attribute name cannot be null");
}
if (value == null) {
throw new InvalidAttributeValueException(
"Attribute value for attribute " + name + " cannot be null");
}
try {
if (name.equals(ATT_SET_READ_ONLY)) {
openConfig.setReadOnly(((Boolean) value).booleanValue());
} else if (name.equals(ATT_SET_TRANSACTIONAL)) {
openConfig.setTransactional(((Boolean) value).booleanValue());
} else if (name.equals(ATT_SET_SERIALIZABLE)) {
openConfig.setTxnSerializableIsolation(((Boolean) value).booleanValue());
} else {
/* Set the specified attribute if the environment is open. */
if (targetEnv != null) {
EnvironmentMutableConfig config = targetEnv.getMutableConfig();
if (name.equals(ATT_CACHE_SIZE)) {
config.setCacheSize(((Long) value).longValue());
targetEnv.setMutableConfig(config);
} else if (name.equals(ATT_CACHE_PERCENT)) {
config.setCachePercent(((Integer) value).intValue());
targetEnv.setMutableConfig(config);
} else {
throw new AttributeNotFoundException("attribute " + name + " is not valid.");
}
} else {
throw new AttributeNotFoundException("attribute " + name + " is not valid.");
}
}
} catch (NumberFormatException e) {
throw new InvalidAttributeValueException("attribute name=" + name);
} catch (DatabaseException e) {
throw new InvalidAttributeValueException("attribute name=" + name + e.getMessage());
}
}
public void setup(File envHome, boolean readOnly) throws DatabaseException {
// create environment config and environment instance
myEnvConfig = new EnvironmentConfig();
myEnvConfig.setReadOnly(readOnly);
myEnvConfig.setAllowCreate(!readOnly);
myEnv = new Environment(envHome, myEnvConfig);
// create class catalog database and instance
Database myClassCatalogDb = setDatabase("MyClassCatalogDb", readOnly);
myClassCatalog = new StoredClassCatalog(myClassCatalogDb);
}
/**
* @param dbEnvPath path to db environment
* @param isReadOnly If true, then all databases opened in this environment must be opened as
* read-only. If you are writing a multi-process application, then all but one of your
* processes must set this value to true.
* @param allowCreateNew If true, the database environment is created when it is opened. If false,
* environment open fails if the environment does not exist. This property has no meaning if
* the database environment already exists.
* @param cacheSizeInMB
* @throws DatabaseException
*/
public BerkeleyDbEnvironment(
String dbEnvPath, boolean isReadOnly, boolean allowCreateNew, Long cacheSizeInMB)
throws DatabaseException {
EnvironmentConfig envConfig = new EnvironmentConfig();
envConfig.setAllowCreate(allowCreateNew);
envConfig.setReadOnly(isReadOnly);
envConfig.setTransactional(false);
if (cacheSizeInMB != null && cacheSizeInMB != -1) {
long cacheSizeInByte = cacheSizeInMB * 1024 * 1024;
envConfig.setCacheSize(cacheSizeInByte);
}
environment = new Environment(new File(dbEnvPath), envConfig);
}
public static void main(String[] args) {
Environment env = null;
Database db = null;
EnvironmentConfig envconfig = new EnvironmentConfig();
envconfig.setAllowCreate(true);
try {
env = new Environment(new File("D://bdb"), envconfig);
DatabaseConfig dbconfig = new DatabaseConfig();
dbconfig.setAllowCreate(true);
db = env.openDatabase(null, "dbac.db", dbconfig);
String key = "mykey";
DatabaseEntry thekey = new DatabaseEntry();
thekey.setData(key.getBytes("utf-8"));
Long value = new Long(123456);
DatabaseEntry thevalue = new DatabaseEntry();
EntryBinding myBinging = TupleBinding.getPrimitiveBinding(Long.class);
myBinging.objectToEntry(value, thevalue);
// LongBinding myLongBinging=(LongBinding)TupleBinding.getPrimitiveBinding(Long.class);
// myLongBinging.objectToEntry(value, thevalue);
db.put(null, thekey, thevalue);
DatabaseEntry valueEntry = new DatabaseEntry();
OperationStatus status = db.get(null, thekey, valueEntry, LockMode.DEFAULT);
if (status == OperationStatus.SUCCESS) {
// Long number=myLongBinging.entryToObject(valueEntry);
Long number = (Long) myBinging.entryToObject(valueEntry);
System.out.println(env.getDatabaseNames());
System.out.println(number);
}
} catch (EnvironmentLockedException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
} finally {
if (db != null) {
try {
db.close();
} catch (DatabaseException e) {
e.printStackTrace();
}
}
if (env != null) {
try {
env.cleanLog();
env.close();
} catch (DatabaseException e) {
e.printStackTrace();
}
}
}
}
/**
* Tests that when a file is opened with a lesser version than the current version, a new log file
* is started for writing new log entries. This is important so that the new header version is
* written even if no new log file is needed. If the new version were not written, an older
* version of JE would not recognize that there had been a version change.
*/
public void testLesserVersionNotUpdated() throws DatabaseException, IOException {
TestUtils.loadLog(getClass(), Utils.MIN_VERSION_NAME, envHome);
File logFile = new File(envHome, TestUtils.LOG_FILE_NAME);
long origFileSize = logFile.length();
EnvironmentConfig envConfig = TestUtils.initEnvConfig();
envConfig.setAllowCreate(false);
envConfig.setTransactional(true);
Environment env = new Environment(envHome, envConfig);
env.sync();
env.close();
assertEquals(origFileSize, logFile.length());
}
private void createRepEnvInfo(String sleepTime) throws Throwable {
/*
* Set a large buffer size and disable the checkpointing, so the
* data in the buffer can only be flushed by the LogFlushTask.
*/
EnvironmentConfig envConfig = RepTestUtils.createEnvConfig(Durability.COMMIT_NO_SYNC);
envConfig.setConfigParam(EnvironmentParams.MAX_MEMORY.getName(), "20000000");
envConfig.setConfigParam(EnvironmentParams.LOG_MEM_SIZE.getName(), "120000000");
envConfig.setConfigParam(EnvironmentParams.NUM_LOG_BUFFERS.getName(), "4");
envConfig.setConfigParam(EnvironmentConfig.ENV_RUN_CHECKPOINTER, "false");
/* Configure the log flush task. */
ReplicationConfig repConfig = new ReplicationConfig();
repConfig.setConfigParam(ReplicationConfig.LOG_FLUSH_TASK_INTERVAL, sleepTime);
repEnvInfo = RepTestUtils.setupEnvInfos(envRoot, 3, envConfig, repConfig);
}
@Test
public void getEnvironmentConfigTest() throws Exception {
final EnvironmentConfig expected = new EnvironmentConfig();
final BJEConfig bjeConfig = new BJEConfig();
final Field privateConfigField = bjeConfig.getClass().getDeclaredField("envConfig");
privateConfigField.setAccessible(true);
privateConfigField.set(bjeConfig, expected);
final EnvironmentConfig actual = bjeConfig.getEnvironmentConfig();
// equals() is not overridden in EnvironmentConfig class. So not sure
// about its behavior.
// But toString is overridden. It is pretty enough for comparing objects
// in the present test case.
assertEquals(actual.toString(), expected.toString());
}
private void openGroup() throws IOException {
EnvironmentConfig envConfig = new EnvironmentConfig();
envConfig.setTransactional(true);
envConfig.setAllowCreate(true);
ReplicationConfig repConfig = new ReplicationConfig();
repConfig.setConfigParam(RepParams.VLSN_LOG_CACHE_SIZE.getName(), "2");
repEnvInfo = RepTestUtils.setupEnvInfos(envRoot, nNodes, envConfig, repConfig);
master = RepTestUtils.joinGroup(repEnvInfo);
StoreConfig config = new StoreConfig();
config.setAllowCreate(true);
config.setTransactional(true);
store = new EntityStore(master, "test", config);
primaryIndex = store.getPrimaryIndex(Integer.class, AppData.class);
}
private static void openEnv() throws DatabaseException {
System.out.println("opening env");
// Set up the environment.
EnvironmentConfig myEnvConfig = new EnvironmentConfig();
myEnvConfig.setAllowCreate(true);
myEnvConfig.setTransactional(true);
// Environment handles are free-threaded in JE,
// so we do not have to do anything to cause the
// environment handle to be free-threaded.
// Set up the database
DatabaseConfig myDbConfig = new DatabaseConfig();
myDbConfig.setAllowCreate(true);
myDbConfig.setTransactional(true);
myDbConfig.setSortedDuplicates(true);
// no DatabaseConfig.setThreaded() method available.
// db handles in java are free-threaded so long as the
// env is also free-threaded.
// Open the environment
myEnv =
new Environment(
new File(myEnvPath), // Env home
myEnvConfig);
// Open the database. Do not provide a txn handle. This open
// is autocommitted because DatabaseConfig.setTransactional()
// is true.
myDb =
myEnv.openDatabase(
null, // txn handle
dbName, // Database file name
myDbConfig);
// Used by the bind API for serializing objects
// Class database must not support duplicates
myDbConfig.setSortedDuplicates(false);
myClassDb =
myEnv.openDatabase(
null, // txn handle
cdbName, // Database file name
myDbConfig);
}
/** Set up the environment and db. */
private void initDbs(int nDumps, Hashtable[] dataMaps) throws DatabaseException {
EnvironmentConfig envConfig = TestUtils.initEnvConfig();
envConfig.setConfigParam(EnvironmentParams.NODE_MAX.getName(), "6");
envConfig.setAllowCreate(true);
env = new Environment(envHome, envConfig);
/* Make a db and open it. */
for (int i = 0; i < nDumps; i += 1) {
DatabaseConfig dbConfig = new DatabaseConfig();
dbConfig.setAllowCreate(true);
dbConfig.setSortedDuplicates(true);
Database myDb = env.openDatabase(null, dbName + i, dbConfig);
Cursor cursor = myDb.openCursor(null, null);
doLargePut(dataMaps[i], cursor, N_KEYS);
cursor.close();
myDb.close();
}
}
private CurrentTransaction(Environment env) {
this.env = env;
try {
EnvironmentConfig config = env.getConfig();
txnMode = config.getTransactional();
lockingMode = DbCompat.getInitializeLocking(config);
if (txnMode || lockingMode) {
writeLockMode = LockMode.RMW;
} else {
writeLockMode = LockMode.DEFAULT;
}
cdbMode = DbCompat.getInitializeCDB(config);
if (cdbMode) {
localCdbCursors = new ThreadLocal();
}
} catch (DatabaseException e) {
throw new RuntimeExceptionWrapper(e);
}
}
private static void setJEProperties(
BackendCfg cfg, EnvironmentConfig envConfig, ByteString backendId) {
for (Map.Entry<String, String> mapEntry : attrMap.entrySet()) {
String jeProperty = mapEntry.getKey();
String attrName = mapEntry.getValue();
String value = getPropertyValue(cfg, attrName, backendId);
envConfig.setConfigParam(jeProperty, value);
}
}
/** A database in a standalone environment should not be replicated. */
@Test
public void testStandalone() throws DatabaseException {
try {
EnvironmentConfig envConfig = new EnvironmentConfig();
envConfig.setAllowCreate(true);
env = new Environment(envRoot, envConfig);
DatabaseConfig config = new DatabaseConfig();
config.setAllowCreate(true);
validate(config, false /* replicated */);
} finally {
if (db != null) {
db.close();
}
if (env != null) {
env.close();
}
}
}