/** rollback the resource */
public void rollback(Xid xid) throws XAException {
try {
int endFlags = _endFlags;
_endFlags = -1;
if (endFlags != -1 && _isXATransaction) {
boolean isValid = false;
try {
endResource(xid, endFlags);
isValid = true;
} finally {
if (!isValid) _xaResource.rollback(xid);
}
}
if (log.isLoggable(Level.FINER)) log.finer("connection pool rollback XA: " + this);
if (_isXATransaction) _xaResource.rollback(xid);
else if (_localTransaction != null) {
try {
_isLocalTransaction = false;
_localTransaction.rollback();
} catch (ResourceException e) {
throw new XAExceptionWrapper(e);
}
}
} finally {
if (_xaResource != null) _isXATransaction = true;
clearXid();
}
}
/** starts work on a transaction branch */
public void start(Xid xid, int flags) throws XAException {
if (_xid != null) {
if (log.isLoggable(Level.FINER)) log.finer("connection pool start XA: rejoin " + this);
return;
}
if (flags == TMJOIN && _xid == null) {
// TMJOIN means the resource manager is managing more than one
// connection. The delegates tie the PoolItems managed by
// the same resource manager together.
_xid = xid;
UserTransactionImpl trans = _cm.getTransaction();
if (trans != null) {
ManagedPoolItem xaHead = trans.findJoin(this);
if (xaHead != null) {
_xaNext = xaHead._xaNext;
_xaHead = xaHead;
xaHead._xaNext = this;
}
}
}
// local transaction optimization
if (!_isXATransaction && flags != TMJOIN && _localTransaction != null) {
try {
if (log.isLoggable(Level.FINER))
log.finer("begin-local-XA: " + xid + " " + _localTransaction);
_localTransaction.begin();
} catch (ResourceException e) {
throw new XAExceptionWrapper(e);
}
_xid = xid;
return;
}
if (_xaResource != null) {
if (log.isLoggable(Level.FINER)) log.finer("start-XA: " + xid + " " + _xaResource);
_xaResource.start(xid, flags);
_isXATransaction = true;
} else {
if (log.isLoggable(Level.FINER))
log.finer("start-XA with non XA resource: " + xid + " " + _xaResource);
}
_xid = xid;
}
/** commit the resource */
public void commit(Xid xid, boolean onePhase) throws XAException {
boolean logFiner = log.isLoggable(Level.FINER);
try {
int endFlags = _endFlags;
_endFlags = -1;
if (endFlags != -1 && _isXATransaction) {
boolean isValid = false;
try {
endResource(xid, endFlags);
isValid = true;
} finally {
if (!isValid) _xaResource.rollback(xid);
}
}
if (_isXATransaction) {
if (logFiner) {
log.finer("commit-XA" + (onePhase ? "-1p: " : ": ") + xid + " " + _xaResource);
}
try {
_xaResource.commit(xid, onePhase);
} catch (XAException e) {
if (logFiner) log.finer("commit-XA failed: " + _xaResource + " " + e);
throw e;
}
} else if (_localTransaction != null) {
if (logFiner) log.finer("commit-local: " + _localTransaction);
try {
_localTransaction.commit();
} catch (ResourceException e) {
if (logFiner) log.finer("commit failed: " + _localTransaction + " " + e);
throw new XAExceptionWrapper(e);
} finally {
_isLocalTransaction = false;
}
} else {
if (logFiner) log.finer("commit for resource with no XA support: " + this);
}
} finally {
if (_xaResource != null) _isXATransaction = true;
clearXid();
}
}
