/** 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();
}
}
/** @throws Exception */
public void testDoCommit() throws Exception {
Xid xid = new XidImpl();
xares_.start(xid, XAResource.TMNOFLAGS);
xares_.end(xid, XAResource.TMSUCCESS);
xares_.commit(xid, true);
assertEquals("1", true, con_.getAutoCommit());
}
/** @throws Exception */
public void testDoRollback() throws Exception {
Xid xid = new XidImpl();
xares_.start(xid, XAResource.TMNOFLAGS);
xares_.end(xid, XAResource.TMFAIL);
xares_.rollback(xid);
assertEquals("1", true, con_.getAutoCommit());
}
public ManagedPoolItem(ConnectionPool cm, ManagedConnectionFactory mcf, ManagedConnection conn) {
_cm = cm;
_id = _cm.generateId();
_mcf = mcf;
_mConn = conn;
_poolStartTime = Alarm.getCurrentTime();
_poolEventTime = Alarm.getCurrentTime();
_connectionStartTime = cm.getConnectionTimeProbe().start();
// Gets the resource object from the driver
try {
if (cm.isXATransaction()) {
XAResource xaResource = conn.getXAResource();
try {
_defaultTransactionTimeout = xaResource.getTransactionTimeout();
} catch (Throwable e) {
log.log(Level.FINE, e.toString(), e);
}
_xaResource = xaResource;
}
} catch (NotSupportedException e) {
_cm.setXATransaction(false);
log.log(Level.FINER, e.toString(), e);
} catch (Exception e) {
log.log(Level.FINE, e.toString(), e);
}
if (_xaResource == null) _isXATransaction = false;
// Gets the local transaction from the driver
try {
if (_cm.isLocalTransaction()) _localTransaction = conn.getLocalTransaction();
} catch (NotSupportedException e) {
_cm.setLocalTransaction(false);
log.log(Level.FINER, e.toString(), e);
} catch (Exception e) {
log.log(Level.FINER, e.toString(), e);
}
_mConn.addConnectionEventListener(this);
if (log.isLoggable(Level.FINE))
log.fine(
"create: "
+ this
+ "(active:"
+ _cm.getConnectionActiveCount()
+ ", total:"
+ _cm.getConnectionCount()
+ ")");
}
private void runXaResourceRollback() {
Collection<XAResource> resources = getEnlistedResources();
for (XAResource res : resources) {
try {
res.rollback(xid);
} catch (XAException e) {
log.warn("Error while rolling back", e);
}
}
}
/** Sets the transaction timeout */
public boolean setTransactionTimeout(int seconds) throws XAException {
if (seconds == _transactionTimeout) return true;
XAResource xaResource = _xaResource;
_transactionTimeout = seconds;
if (xaResource == null) return true;
else if (seconds == 0) return xaResource.setTransactionTimeout(_defaultTransactionTimeout);
else return xaResource.setTransactionTimeout(seconds);
}
private boolean runXaResourceCommitTx() throws HeuristicMixedException {
Collection<XAResource> resources = getEnlistedResources();
for (XAResource res : resources) {
try {
res.commit(xid, false); // todo we only support one phase commit for now, change this!!!
} catch (XAException e) {
log.warn("exception while committing", e);
throw new HeuristicMixedException(e.getMessage());
}
}
return true;
}
/** 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();
}
}
private boolean runXaResourcePrepare() throws SystemException {
Collection<XAResource> resources = getEnlistedResources();
for (XAResource res : resources) {
try {
res.prepare(xid);
} catch (XAException e) {
log.trace("The resource wants to rollback!", e);
return false;
} catch (Throwable th) {
log.error("Unexpected error from resource manager!", th);
throw new SystemException(th.getMessage());
}
}
return true;
}
/** Vote using phase-1 of the 2-phase commit. */
public int prepare(Xid xid) throws XAException {
if (_endFlags != -1) {
int endFlags = _endFlags;
_endFlags = -1;
if (_isXATransaction) endResource(xid, endFlags);
}
if (_isXATransaction) {
try {
if (log.isLoggable(Level.FINER)) log.finer("prepare-XA: " + xid + " " + _xaResource);
int result = _xaResource.prepare(xid);
if (result == XA_RDONLY) {
if (_xaResource != null) _isXATransaction = true;
clearXid();
}
return result;
} catch (XAException e) {
if (log.isLoggable(Level.FINER))
log.finer("failed prepare-XA: " + xid + " " + _xaResource + " " + e);
throw e;
}
} else return XA_OK;
}
/** forget about the transaction */
public void forget(Xid xid) throws XAException {
try {
if (_isXATransaction) _xaResource.forget(xid);
} finally {
clearXid();
}
}
protected int doCommit(Xid xid, int cPhase) throws XAException {
int returnVal = -1;
synchronized (physicalConn) {
synchronized (this) {
int command = cPhase != 1 ? 2 : 4;
returnVal = doTransaction(xid, 1, command);
if (cPhase == 1 && (returnVal == 2 || returnVal == 4)) {
returnVal = 0;
} else if (cPhase != 1 && returnVal == 5) {
returnVal = 0;
} else if (returnVal == 8) {
throw new XAException(106);
}
if (returnVal == 24756) {
returnVal = kputxrec(xid, 1, timeout + 120);
} else if (returnVal == 24780) {
OracleXADataSource oxds = null;
XAConnection pc = null;
try {
oxds = new OracleXADataSource();
oxds.setURL(physicalConn.url);
oxds.setUser(physicalConn.user);
physicalConn.getPasswordInternal(this);
oxds.setPassword(password);
pc = oxds.getXAConnection();
XAResource oxar = pc.getXAResource();
oxar.commit(xid, cPhase == 1);
returnVal = 0;
} catch (SQLException e) {
throw new XAException(-6);
} finally {
try {
if (pc != null) {
pc.close();
}
if (oxds != null) {
oxds.close();
}
} catch (Exception ee) {
}
}
}
}
}
return returnVal;
}
protected int doRollback(Xid xid) throws XAException {
int returnVal = -1;
synchronized (physicalConn) {
synchronized (this) {
returnVal = doTransaction(xid, 2, 3);
if (returnVal == 8) {
throw new XAException(106);
}
if (returnVal == 3 || returnVal == 25402) {
returnVal = 0;
}
if (returnVal == 24756) {
returnVal = kputxrec(xid, 2, timeout + 120);
} else if (returnVal == 24780) {
OracleXADataSource oxds = null;
XAConnection pc = null;
try {
oxds = new OracleXADataSource();
oxds.setURL(physicalConn.url);
oxds.setUser(physicalConn.user);
physicalConn.getPasswordInternal(this);
oxds.setPassword(password);
pc = oxds.getXAConnection();
XAResource oxar = pc.getXAResource();
oxar.rollback(xid);
returnVal = 0;
} catch (SQLException e) {
throw new XAException(-6);
} finally {
try {
if (pc != null) {
pc.close();
}
if (oxds != null) {
oxds.close();
}
} catch (Exception ee) {
}
}
}
}
}
return returnVal;
}
/** 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;
}
@Override
public boolean isSameRM(XAResource xaResource) throws XAException {
if (this == xaResource) {
return true;
}
if (xaResource instanceof XAResourceImpl) {
XAResourceImpl otherXaResource = (XAResourceImpl) xaResource;
return groupName.equals(otherXaResource.groupName);
}
return xaResource.isSameRM(this);
}
public boolean enlistResource(XAResource xaResource)
throws RollbackException, IllegalStateException, SystemException {
enlistedResources.add(new WrappedXaResource(xaResource));
try {
xaResource.start(xid, 0);
} catch (XAException e) {
log.error("Got an exception", e);
throw new SystemException(e.getMessage());
}
return true;
}
synchronized byte[] getBranchId(XAResource xaResource) {
if (xaResource instanceof XaResource) {
byte branchId[] = ((XaResource) xaResource).getBranchId();
if (branchId != null) {
return branchId;
}
}
for (Map.Entry<String, XaDataSource> entry : dataSources.entrySet()) {
XaDataSource dataSource = entry.getValue();
XAResource resource = dataSource.getXaConnection().getXaResource();
try {
if (resource.isSameRM(xaResource)) {
String name = entry.getKey();
return sourceIdMapping.get(name);
}
} catch (XAException e) {
throw new TransactionFailureException("Unable to check is same resource", e);
}
}
throw new TransactionFailureException(
"Unable to find mapping for XAResource[" + xaResource + "]");
}
/** identity of resources */
public boolean isSameRM(XAResource resource) throws XAException {
if (!(resource instanceof ManagedPoolItem)) return false;
ManagedPoolItem poolItem = (ManagedPoolItem) resource;
// if (_cm == poolItem._cm)
// return true;
if (_xaResource == null) return false;
boolean isSameRM = _xaResource.isSameRM(poolItem._xaResource);
if (log.isLoggable(Level.FINER)) log.finer("isSameRM->" + isSameRM + " " + _xaResource);
return isSameRM;
}
public synchronized boolean delistResource(XAResource xaRes, int flag)
throws IllegalStateException {
if (xaRes == null) {
throw new IllegalArgumentException("Null xa resource");
}
if (flag != XAResource.TMSUCCESS && flag != XAResource.TMSUSPEND && flag != XAResource.TMFAIL) {
throw new IllegalArgumentException("Illegal flag: " + flag);
}
ResourceElement re = null;
Iterator<ResourceElement> itr = resourceList.iterator();
while (itr.hasNext()) {
ResourceElement reMatch = itr.next();
if (reMatch.getResource() == xaRes) {
re = reMatch;
break;
}
}
if (re == null) {
return false;
}
if (status == Status.STATUS_ACTIVE || status == Status.STATUS_MARKED_ROLLBACK) {
try {
xaRes.end(re.getXid(), flag);
if (flag == XAResource.TMSUSPEND || flag == XAResource.TMFAIL) {
re.setStatus(RS_SUSPENDED);
} else {
re.setStatus(RS_DELISTED);
}
return true;
} catch (XAException e) {
e.printStackTrace();
log.severe("Unable to delist resource[" + xaRes + "]");
status = Status.STATUS_MARKED_ROLLBACK;
return false;
}
}
throw new IllegalStateException("Tx status is: " + txManager.getTxStatusAsString(status));
}
static List<Xid> recoverXids(XAResource xaResource, XidSelector selector) throws XAException {
List<Xid> ret = new ArrayList<Xid>();
boolean done = false;
int flags = XAResource.TMSTARTRSCAN;
Xid[] xidsFromLastScan = null;
List<Xid> allRecoveredXidsSoFar = new ArrayList<Xid>();
do {
xidsFromLastScan = xaResource.recover(flags);
flags = XAResource.TMNOFLAGS;
done = (xidsFromLastScan == null || xidsFromLastScan.length == 0);
if (!done) {
// TEMPTATIVELY SET done TO TRUE
// TO TOLERATE ORACLE 8.1.7 INFINITE
// LOOP (ALWAYS RETURNS SAME RECOVER
// SET). IF A NEW SET OF XIDS IS RETURNED
// THEN done WILL BE RESET TO FALSE
done = true;
for (int i = 0; i < xidsFromLastScan.length; i++) {
Xid xid = new XID(xidsFromLastScan[i]);
// our own XID implements equals and hashCode properly
if (!allRecoveredXidsSoFar.contains(xid)) {
// a new xid is returned -> we can not be in a recovery loop -> go on
allRecoveredXidsSoFar.add(xid);
done = false;
if (selector.selects(xid)) {
ret.add(xid);
}
}
}
}
} while (!done);
return ret;
}
@Override
public int getTransactionTimeout() throws XAException {
return xaResource.getTransactionTimeout();
}
@Override
public boolean setTransactionTimeout(int i) throws XAException {
return xaResource.setTransactionTimeout(i);
}
@Override
public void start(Xid xid, int i) throws XAException {
xaResource.start(xid, i);
}
@Override
public Xid[] recover(int i) throws XAException {
return xaResource.recover(i);
}
@Override
public void rollback(Xid xid) throws XAException {
xaResource.rollback(xid);
}
@Override
public int prepare(Xid xid) throws XAException {
prepareResult = xaResource.prepare(xid);
return prepareResult;
}
@Override
public boolean isSameRM(XAResource xaResource) throws XAException {
return xaResource.isSameRM(xaResource);
}
@Override
public void commit(Xid xid, boolean b) throws XAException {
// Commit only if not read only.
if (prepareResult != XAResource.XA_RDONLY) xaResource.commit(xid, b);
else log.tracef("Not committing {0} due to readonly.", xid);
}
@Override
public void forget(Xid xid) throws XAException {
xaResource.forget(xid);
}
@Override
public void end(Xid xid, int i) throws XAException {
xaResource.end(xid, i);
}