/*
* JBoss, Home of Professional Open Source.
* Copyright 2011, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.ejb3.remote.protocol.versionone;
import com.arjuna.ats.arjuna.coordinator.TwoPhaseOutcome;
import com.arjuna.ats.internal.jta.transaction.arjunacore.jca.SubordinateTransaction;
import com.arjuna.ats.internal.jta.transaction.arjunacore.jca.SubordinationManager;
import org.jboss.as.ejb3.remote.EJBRemoteTransactionsRepository;
import org.jboss.ejb.client.XidTransactionID;
import org.jboss.logging.Logger;
import org.jboss.marshalling.MarshallerFactory;
import org.jboss.remoting3.Channel;
import org.xnio.IoUtils;
import javax.transaction.HeuristicCommitException;
import javax.transaction.HeuristicMixedException;
import javax.transaction.HeuristicRollbackException;
import javax.transaction.SystemException;
import javax.transaction.Transaction;
import javax.transaction.xa.XAException;
import javax.transaction.xa.XAResource;
import javax.transaction.xa.Xid;
import java.io.IOException;
/**
* @author Jaikiran Pai
*/
class XidTransactionPrepareTask extends XidTransactionManagementTask {
private static final Logger logger = Logger.getLogger(XidTransactionPrepareTask.class);
XidTransactionPrepareTask(final TransactionRequestHandler txRequestHandler, final EJBRemoteTransactionsRepository transactionsRepository,
final MarshallerFactory marshallerFactory, final XidTransactionID xidTransactionID,
final Channel channel, final short invocationId) {
super(txRequestHandler, transactionsRepository, marshallerFactory, xidTransactionID, channel, invocationId);
}
@Override
public void run() {
try {
this.manageTransaction();
} catch (Throwable t) {
try {
// write out a failure message to the channel to let the client know that
// the transaction operation failed
transactionRequestHandler.writeException(this.channel, this.marshallerFactory, this.invocationId, t, null);
} catch (IOException e) {
logger.error("Could not write out message to channel due to", e);
// close the channel
IoUtils.safeClose(this.channel);
}
return;
}
}
@Override
protected void manageTransaction() throws Throwable {
final int prepareResult = this.prepareTransaction();
// write out the "prepare" result
try {
transactionRequestHandler.writeTxPrepareResponseMessage(this.channel, this.invocationId, prepareResult);
} catch (IOException e) {
logger.error("Could not write out invocation success message to channel due to", e);
// close the channel
IoUtils.safeClose(this.channel);
}
}
private int prepareTransaction() throws Throwable {
// first associate the tx on this thread, by resuming the tx
final Transaction transaction = this.transactionsRepository.removeTransaction(this.xidTransactionID);
this.resumeTransaction(transaction);
try {
// now "prepare"
final Xid xid = this.xidTransactionID.getXid();
// Courtesy: com.arjuna.ats.internal.jta.transaction.arjunacore.jca.XATerminatorImple
final SubordinateTransaction subordinateTransaction = SubordinationManager.getTransactionImporter().getImportedTransaction(xid);
int result = subordinateTransaction.doPrepare();
switch (result) {
case TwoPhaseOutcome.PREPARE_READONLY:
// TODO: Would it be fine to not remove the xid? (Need to understand how the subsequent
// flow works)
SubordinationManager.getTransactionImporter().removeImportedTransaction(xid);
return XAResource.XA_RDONLY;
case TwoPhaseOutcome.PREPARE_OK:
return XAResource.XA_OK;
case TwoPhaseOutcome.PREPARE_NOTOK:
// the JCA API spec limits what we can do in terms of reporting
// problems.
// try to use the exception code and cause to provide info
// whilst
// remaining API compliant. JBTM-427.
Exception initCause = null;
int xaExceptionCode = XAException.XA_RBROLLBACK;
try {
subordinateTransaction.doRollback();
} catch (HeuristicCommitException e) {
initCause = e;
xaExceptionCode = XAException.XAER_RMERR;
} catch (HeuristicMixedException e) {
initCause = e;
xaExceptionCode = XAException.XAER_RMERR;
} catch (SystemException e) {
initCause = e;
xaExceptionCode = XAException.XAER_RMERR;
} catch (final HeuristicRollbackException e) {
initCause = e;
xaExceptionCode = XAException.XAER_RMERR;
}
// remove the transaction
SubordinationManager.getTransactionImporter().removeImportedTransaction(xid);
final XAException xaException = new XAException(xaExceptionCode);
if (initCause != null) {
xaException.initCause(initCause);
}
throw xaException;
case TwoPhaseOutcome.INVALID_TRANSACTION:
throw new XAException(XAException.XAER_NOTA);
default:
throw new XAException(XAException.XA_RBOTHER);
}
} finally {
// disassociate the tx that was asssociated (resumed) on this thread.
// This needs to be done explicitly because the SubOrdinationManager isn't responsible
// for clearing the tx context from the thread
this.transactionsRepository.getTransactionManager().suspend();
}
}
}