void initNew__wrappee__base(
Environment env, Locker locker, String databaseName, DatabaseConfig dbConfig)
throws DatabaseException {
if (dbConfig.getReadOnly()) {
throw new DatabaseException(
"DatabaseConfig.setReadOnly() must be set to false " + "when creating a Database");
}
init(env, dbConfig);
EnvironmentImpl environmentImpl = DbInternal.envGetEnvironmentImpl(envHandle);
databaseImpl = environmentImpl.createDb(locker, databaseName, dbConfig, this);
databaseImpl.addReferringHandle(this);
}
/* Test mutable and persistent configurations. */
@Test
public void testPersistentAndMutableConfigs() throws Exception {
final String dbName = "foo";
EnvironmentConfig envConfig = TestUtils.initEnvConfig();
envConfig.setAllowCreate(true);
envConfig.setTransactional(true);
env = create(envHome, envConfig);
DbConfigManager configMgr = DbInternal.getEnvironmentImpl(env).getConfigManager();
int defaultNodeMaxEntries = configMgr.getInt(EnvironmentParams.NODE_MAX);
int defaultNodeDupTreeMaxEntries = configMgr.getInt(EnvironmentParams.NODE_MAX_DUPTREE);
/* Check the default node max entries setting. */
assertEquals(defaultNodeMaxEntries, 128);
assertEquals(defaultNodeDupTreeMaxEntries, 128);
DatabaseConfig dbConfig = new DatabaseConfig();
dbConfig.setAllowCreate(true);
dbConfig.setTransactional(true);
/* Do updates on each persistent and mutable config. */
/* Check whether BtreeComparator setting is persisted. */
dbConfig.setOverrideBtreeComparator(true);
dbConfig.setBtreeComparator(TestComparator.class);
DatabaseConfig newConfig = setAndGetDbConfig(env, dbConfig, dbName);
assertTrue(newConfig.getBtreeComparator() instanceof TestComparator);
/* Check whether DuplicateComparator setting is persisted. */
dbConfig.setOverrideDuplicateComparator(true);
dbConfig.setDuplicateComparator(new TestSerialComparator());
newConfig = setAndGetDbConfig(env, dbConfig, dbName);
assertTrue(newConfig.getDuplicateComparator() instanceof TestSerialComparator);
/* Check whether KeyPrefixing setting is persisted. */
dbConfig.setKeyPrefixing(true);
newConfig = setAndGetDbConfig(env, dbConfig, dbName);
assertTrue(newConfig.getKeyPrefixing());
/* Check whether NodeMaxEntries setting is persisted. */
dbConfig.setNodeMaxEntries(512);
newConfig = setAndGetDbConfig(env, dbConfig, dbName);
assertTrue(newConfig.getNodeMaxEntries() == 512);
close(env);
}
/**
* Opens a sequence handle, adding the sequence record if appropriate.
*
* @throws IllegalArgumentException via Database.openSequence.
* @throws IllegalStateException via Database.openSequence.
*/
Sequence(Database db, Transaction txn, DatabaseEntry key, SequenceConfig config)
throws SequenceNotFoundException, SequenceExistsException {
if (db.getDatabaseImpl().getSortedDuplicates()) {
throw new UnsupportedOperationException(
"Sequences not supported in databases configured for " + "duplicates");
}
SequenceConfig useConfig = (config != null) ? config : SequenceConfig.DEFAULT;
if (useConfig.getRangeMin() >= useConfig.getRangeMax()) {
throw new IllegalArgumentException("Minimum sequence value must be less than the maximum");
}
if (useConfig.getInitialValue() > useConfig.getRangeMax()
|| useConfig.getInitialValue() < useConfig.getRangeMin()) {
throw new IllegalArgumentException("Initial sequence value is out of range");
}
if (useConfig.getRangeMin() > useConfig.getRangeMax() - useConfig.getCacheSize()) {
throw new IllegalArgumentException("The cache size is larger than the sequence range");
}
if (useConfig.getAutoCommitNoSync()) {
autoCommitConfig = DbInternal.getDefaultTxnConfig(db.getEnvironment()).clone();
autoCommitConfig.overrideDurability(Durability.COMMIT_NO_SYNC);
} else {
/* Use the environment's default transaction config. */
autoCommitConfig = null;
}
this.db = db;
this.key = copyEntry(key);
logger = db.getEnvironment().getEnvironmentImpl().getLogger();
/* Perform an auto-commit transaction to create the sequence. */
Locker locker = null;
Cursor cursor = null;
OperationStatus status = OperationStatus.NOTFOUND;
try {
locker =
LockerFactory.getReadableLocker(
db.getEnvironment(),
txn,
db.isTransactional(),
false /*retainNonTxnLocks*/,
false /*readCommitedIsolation*/);
cursor = new Cursor(db, locker, null);
boolean sequenceExists = readData(cursor, null);
boolean isWritableLocker =
!db.getConfig().getTransactional()
|| (locker.isTransactional()
&& !DbInternal.getEnvironmentImpl(db.getEnvironment()).isReplicated());
if (sequenceExists) {
if (useConfig.getAllowCreate() && useConfig.getExclusiveCreate()) {
throw new SequenceExistsException(
"ExclusiveCreate=true and the sequence record " + "already exists.");
}
} else {
if (useConfig.getAllowCreate()) {
if (!isWritableLocker) {
if (cursor != null) {
cursor.close();
}
locker.operationEnd(OperationStatus.SUCCESS);
locker =
LockerFactory.getWritableLocker(
db.getEnvironment(),
txn,
db.isTransactional(),
false,
db.getDatabaseImpl().isReplicated(),
autoCommitConfig);
cursor = new Cursor(db, locker, null);
}
/* Get the persistent fields from the config. */
rangeMin = useConfig.getRangeMin();
rangeMax = useConfig.getRangeMax();
increment = !useConfig.getDecrement();
wrapAllowed = useConfig.getWrap();
storedValue = useConfig.getInitialValue();
/*
* To avoid dependence on SerializableIsolation, try
* putNoOverwrite first. If it fails, then try to get an
* existing record.
*/
status = cursor.putNoOverwrite(key, makeData());
if (!readData(cursor, null)) {
/* A retry loop should be performed here. */
throw new IllegalStateException("Sequence record removed during openSequence.");
}
status = OperationStatus.SUCCESS;
} else {
throw new SequenceNotFoundException(
"AllowCreate=false and the sequence record " + "does not exist.");
}
}
} finally {
if (cursor != null) {
cursor.close();
}
if (locker != null) {
locker.operationEnd(status);
}
}
/*
* cacheLast is initialized such that the cache will be considered
* empty the first time get() is called.
*/
cacheSize = useConfig.getCacheSize();
cacheValue = storedValue;
cacheLast = increment ? (storedValue - 1) : (storedValue + 1);
}
/** Test open and close of an environment. */
public void testCacheStats() throws DatabaseException {
EnvironmentConfig envConfig = TestUtils.initEnvConfig();
envConfig.setTransactional(true);
envConfig.setConfigParam(EnvironmentParams.NODE_MAX.getName(), "6");
envConfig.setAllowCreate(true);
env = new Environment(envHome, envConfig);
EnvironmentStats stat = env.getStats(TestUtils.FAST_STATS);
env.close();
env = null;
assertEquals(0, stat.getNCacheMiss());
assertEquals(0, stat.getNNotResident());
// Try to open and close again, now that the environment exists
envConfig.setAllowCreate(false);
envConfig.setConfigParam(EnvironmentParams.JE_LOGGING_LEVEL.getName(), "CONFIG");
env = new Environment(envHome, envConfig);
DatabaseConfig dbConfig = new DatabaseConfig();
dbConfig.setTransactional(true);
dbConfig.setAllowCreate(true);
Database db = env.openDatabase(null, "foo", dbConfig);
db.put(null, new DatabaseEntry(new byte[0]), new DatabaseEntry(new byte[0]));
Transaction txn = env.beginTransaction(null, null);
db.put(txn, new DatabaseEntry(new byte[0]), new DatabaseEntry(new byte[0]));
stat = env.getStats(TestUtils.FAST_STATS);
MemoryBudget mb = DbInternal.envGetEnvironmentImpl(env).getMemoryBudget();
assertEquals(mb.getCacheMemoryUsage(), stat.getCacheTotalBytes());
assertEquals(mb.getLogBufferBudget(), stat.getBufferBytes());
assertEquals(mb.getTreeMemoryUsage() + mb.getTreeAdminMemoryUsage(), stat.getDataBytes());
assertEquals(mb.getLockMemoryUsage(), stat.getLockBytes());
assertEquals(mb.getAdminMemoryUsage(), stat.getAdminBytes());
assertTrue(stat.getBufferBytes() > 0);
assertTrue(stat.getDataBytes() > 0);
assertTrue(stat.getLockBytes() > 0);
assertTrue(stat.getAdminBytes() > 0);
assertEquals(
stat.getCacheTotalBytes(),
stat.getBufferBytes() + stat.getDataBytes() + stat.getLockBytes() + stat.getAdminBytes());
assertEquals(12, stat.getNCacheMiss());
assertEquals(12, stat.getNNotResident());
/* Test deprecated getCacheDataBytes method. */
final EnvironmentStats finalStat = stat;
final long expectCacheDataBytes = mb.getCacheMemoryUsage() - mb.getLogBufferBudget();
(new Runnable() {
@Deprecated
public void run() {
assertEquals(expectCacheDataBytes, finalStat.getCacheDataBytes());
}
})
.run();
txn.abort();
db.close();
env.close();
env = null;
}