/**
* @return The current transaction's event identifier or -1 if no transaction is currently
* running.
*/
public int getEventIdentifier() {
TransactionImpl tx = (TransactionImpl) getTransaction();
if (tx != null) {
return tx.getEventIdentifier();
}
return -1;
}
@Override
public void commit()
throws RollbackException, HeuristicMixedException, HeuristicRollbackException,
IllegalStateException, SystemException {
assertTmOk("tx commit");
Thread thread = Thread.currentThread();
TransactionImpl tx = txThreadMap.get(thread);
if (tx == null) {
throw logAndReturn("TM error tx commit", new IllegalStateException("Not in transaction"));
}
boolean hasAnyLocks = false;
boolean successful = false;
try {
hasAnyLocks = finishHook.hasAnyLocks(tx);
if (tx.getStatus() != Status.STATUS_ACTIVE
&& tx.getStatus() != Status.STATUS_MARKED_ROLLBACK) {
throw logAndReturn(
"TM error tx commit",
new IllegalStateException("Tx status is: " + getTxStatusAsString(tx.getStatus())));
}
tx.doBeforeCompletion();
// delist resources?
if (tx.getStatus() == Status.STATUS_ACTIVE) {
comittedTxCount.incrementAndGet();
commit(thread, tx);
} else if (tx.getStatus() == Status.STATUS_MARKED_ROLLBACK) {
rolledBackTxCount.incrementAndGet();
rollbackCommit(thread, tx);
} else {
throw logAndReturn(
"TM error tx commit",
new IllegalStateException("Tx status is: " + getTxStatusAsString(tx.getStatus())));
}
successful = true;
} finally {
if (hasAnyLocks) {
finishHook.finishTransaction(tx.getEventIdentifier(), successful);
}
}
}
public void rollback() throws IllegalStateException, SystemException {
assertTmOk("tx rollback");
Thread thread = Thread.currentThread();
TransactionImpl tx = txThreadMap.get(thread);
if (tx == null) {
throw new IllegalStateException("Not in transaction");
}
boolean hasAnyLocks = false;
try {
hasAnyLocks = finishHook.hasAnyLocks(tx);
if (tx.getStatus() == Status.STATUS_ACTIVE
|| tx.getStatus() == Status.STATUS_MARKED_ROLLBACK
|| tx.getStatus() == Status.STATUS_PREPARING) {
tx.setStatus(Status.STATUS_MARKED_ROLLBACK);
tx.doBeforeCompletion();
// delist resources?
try {
rolledBackTxCount.incrementAndGet();
tx.doRollback();
} catch (XAException e) {
log.log(
Level.SEVERE,
"Unable to rollback marked or active transaction. "
+ "Some resources may be commited others not. "
+ "Neo4j kernel should be SHUTDOWN for "
+ "resource maintance and transaction recovery ---->",
e);
setTmNotOk(e);
throw logAndReturn(
"TM error tx rollback",
Exceptions.withCause(
new SystemException(
"Unable to rollback " + " ---> error code for rollback: " + e.errorCode),
e));
}
tx.doAfterCompletion();
txThreadMap.remove(thread);
try {
if (tx.isGlobalStartRecordWritten()) {
getTxLog().txDone(tx.getGlobalId());
}
} catch (IOException e) {
log.log(Level.SEVERE, "Error writing transaction log", e);
setTmNotOk(e);
throw logAndReturn(
"TM error tx rollback",
Exceptions.withCause(
new SystemException(
"TM encountered a problem, " + " error writing transaction log"),
e));
}
tx.setStatus(Status.STATUS_NO_TRANSACTION);
} else {
throw new IllegalStateException("Tx status is: " + getTxStatusAsString(tx.getStatus()));
}
} finally {
if (hasAnyLocks) {
finishHook.finishTransaction(tx.getEventIdentifier(), false);
}
}
}
