/**
* Gets Hibernate session.
*
* @param tx Cache transaction.
* @return Session.
*/
Session session(@Nullable GridCacheTx tx) {
Session ses;
if (tx != null) {
ses = tx.meta(ATTR_SES);
if (ses == null) {
ses = sesFactory.openSession();
ses.beginTransaction();
// Store session in transaction metadata, so it can be accessed
// for other operations on the same transaction.
tx.addMeta(ATTR_SES, ses);
if (log.isDebugEnabled())
log.debug("Hibernate session open [ses=" + ses + ", tx=" + tx.xid() + "]");
}
} else {
ses = sesFactory.openSession();
ses.beginTransaction();
}
return ses;
}
/** {@inheritDoc} */
@Override
public Integer call() throws Exception {
GridCacheTx tx = CU.txStartInternal(ctx, latchView, PESSIMISTIC, REPEATABLE_READ);
try {
GridCacheCountDownLatchValue latchVal = latchView.get(key);
if (latchVal == null) {
if (log.isDebugEnabled())
log.debug("Failed to find count down latch with given name: " + name);
assert cnt == 0;
return cnt;
}
int retVal;
if (val > 0) {
retVal = latchVal.get() - val;
if (retVal < 0) retVal = 0;
} else retVal = 0;
latchVal.set(retVal);
latchView.put(key, latchVal);
tx.commit();
return retVal;
} finally {
tx.end();
}
}
/** {@inheritDoc} */
@Override
public void txEnd(GridCacheTx tx, boolean commit) throws GridException {
init();
Session ses = tx.removeMeta(ATTR_SES);
if (ses != null) {
Transaction hTx = ses.getTransaction();
if (hTx != null) {
try {
if (commit) {
ses.flush();
hTx.commit();
} else hTx.rollback();
if (log.isDebugEnabled())
log.debug("Transaction ended [xid=" + tx.xid() + ", commit=" + commit + ']');
} catch (HibernateException e) {
throw new GridException(
"Failed to end transaction [xid=" + tx.xid() + ", commit=" + commit + ']', e);
} finally {
ses.close();
}
}
}
}
/** {@inheritDoc} */
@Override
public void rollback() throws GridException {
enter();
try {
tx.rollback();
} finally {
leave();
}
}
/** {@inheritDoc} */
@Override
public GridFuture<GridCacheTx> commitAsync() {
enter();
try {
return tx.commitAsync();
} finally {
leave();
}
}
/** {@inheritDoc} */
@Override
public void end() throws GridException {
enter();
try {
tx.end();
} finally {
leave();
}
}
/** {@inheritDoc} */
@Override
public boolean isRollbackOnly() {
enter();
try {
return tx.isRollbackOnly();
} finally {
leave();
}
}
/** {@inheritDoc} */
@Override
public <V> Map<String, V> allMeta() {
return tx.allMeta();
}
/** {@inheritDoc} */
@Override
public long timeout(long timeout) {
return tx.timeout(timeout);
}
/** {@inheritDoc} */
@Override
public GridCacheTxConcurrency concurrency() {
return tx.concurrency();
}
/** {@inheritDoc} */
@Override
public long startTime() {
return tx.startTime();
}
/** {@inheritDoc} */
@Override
public UUID nodeId() {
return tx.nodeId();
}
/** {@inheritDoc} */
@Override
public <V> boolean replaceMeta(String name, V curVal, V newVal) {
return tx.replaceMeta(name, curVal, newVal);
}
/** {@inheritDoc} */
@Override
public <V> V addMeta(String name, V val) {
return tx.addMeta(name, val);
}
/** {@inheritDoc} */
@Override
public void copyMeta(Map<String, ?> data) {
tx.copyMeta(data);
}
/** {@inheritDoc} */
@Override
public void copyMeta(GridMetadataAware from) {
tx.copyMeta(from);
}
/** {@inheritDoc} */
@Override
public boolean hasMeta(String name) {
return tx.hasMeta(name);
}
/** {@inheritDoc} */
@Override
public <V> V putMetaIfAbsent(String name, V val) {
return tx.putMetaIfAbsent(name, val);
}
/** {@inheritDoc} */
@Override
public <V> boolean hasMeta(String name, V val) {
return tx.hasMeta(name, val);
}
/** {@inheritDoc} */
@Override
public <V> V putMetaIfAbsent(String name, Callable<V> c) {
return tx.putMetaIfAbsent(name, c);
}
/** {@inheritDoc} */
@Override
public UUID xid() {
return tx.xid();
}
/** {@inheritDoc} */
@Nullable
@Override
public <V> V addMetaIfAbsent(String name, V val) {
return tx.addMeta(name, val);
}
/** {@inheritDoc} */
@Override
public long threadId() {
return tx.threadId();
}
/** {@inheritDoc} */
@Override
public <V> V addMetaIfAbsent(String name, @Nullable Callable<V> c) {
return tx.addMetaIfAbsent(name, c);
}
/** {@inheritDoc} */
@Override
public GridCacheTxIsolation isolation() {
return tx.isolation();
}
/** {@inheritDoc} */
@Override
public long timeout() {
return tx.timeout();
}
/** {@inheritDoc} */
@Override
public boolean isInvalidate() {
return tx.isInvalidate();
}
/** {@inheritDoc} */
@Override
public <V> boolean removeMeta(String name, V val) {
return tx.removeMeta(name, val);
}
/** {@inheritDoc} */
@SuppressWarnings({"RedundantTypeArguments"})
@Override
public <V> V removeMeta(String name) {
return tx.<V>removeMeta(name);
}
/** {@inheritDoc} */
@Override
public GridCacheTxState state() {
return tx.state();
}