Package org.jboss.as.ejb3.remote.protocol.versionone

Source Code of org.jboss.as.ejb3.remote.protocol.versionone.XidTransactionCommitTask

/*
* 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 javax.transaction.HeuristicCommitException;
import javax.transaction.HeuristicMixedException;
import javax.transaction.HeuristicRollbackException;
import javax.transaction.RollbackException;
import javax.transaction.SystemException;
import javax.transaction.Transaction;
import javax.transaction.xa.XAException;
import javax.transaction.xa.Xid;

import com.arjuna.ats.internal.jta.transaction.arjunacore.jca.SubordinateTransaction;
import com.arjuna.ats.internal.jta.transaction.arjunacore.jca.SubordinationManager;
import com.arjuna.ats.internal.jta.transaction.jts.TransactionImple;
import com.arjuna.ats.internal.jts.ControlWrapper;
import com.arjuna.ats.internal.jts.orbspecific.ControlImple;
import com.arjuna.ats.internal.jts.orbspecific.coordinator.ArjunaTransactionImple;
import org.jboss.as.ejb3.remote.EJBRemoteTransactionsRepository;
import org.jboss.ejb.client.XidTransactionID;
import org.jboss.logging.Logger;
import org.jboss.remoting3.Channel;

/**
* @author Jaikiran Pai
*/
class XidTransactionCommitTask extends XidTransactionManagementTask {

    private static final Logger logger = Logger.getLogger(XidTransactionCommitTask.class);

    private final boolean onePhaseCommit;

    XidTransactionCommitTask(final TransactionRequestHandler txRequestHandler, final EJBRemoteTransactionsRepository transactionsRepository,
                             final XidTransactionID xidTransactionID, final Channel channel,
                             final short invocationId, final boolean onePhaseCommit) {
        super(txRequestHandler, transactionsRepository, xidTransactionID, channel, invocationId);
        this.onePhaseCommit = onePhaseCommit;
    }

    @Override
    protected void manageTransaction() throws Throwable {
        // first associate the tx on this thread, by resuming the tx
        final Transaction transaction = this.transactionsRepository.removeTransaction(this.xidTransactionID);
        this.resumeTransaction(transaction);
        // now commit
        final Xid xid = this.xidTransactionID.getXid();
        // Courtesy: com.arjuna.ats.internal.jta.transaction.arjunacore.jca.XATerminatorImple
        try {
            // get the subordinate tx
            final SubordinateTransaction subordinateTransaction = SubordinationManager.getTransactionImporter().getImportedTransaction(xid);

            if (subordinateTransaction == null) {
                throw new XAException(XAException.XAER_INVAL);
            }

            if (subordinateTransaction.activated()) {
                // We have a bug in JBoss TS. Till that is fixed, we need this call.
                // See the comments on the hackJTS method for more details
                this.hackJTS(subordinateTransaction);

                if (this.onePhaseCommit) {
                    subordinateTransaction.doOnePhaseCommit();
                } else {
                    subordinateTransaction.doCommit();
                }
                // remove the tx
                SubordinationManager.getTransactionImporter().removeImportedTransaction(xid);
            } else {
                throw new XAException(XAException.XA_RETRY);
            }

        } catch (RollbackException e) {
            // remove the tx
            SubordinationManager.getTransactionImporter().removeImportedTransaction(xid);
            final XAException xaException = new XAException(XAException.XA_RBROLLBACK);
            xaException.initCause(e);
            throw xaException;

        } catch (XAException ex) {
            // resource hasn't had a chance to recover yet
            if (ex.errorCode != XAException.XA_RETRY) {
                // remove tx
                SubordinationManager.getTransactionImporter().removeImportedTransaction(xid);
            }
            throw ex;

        } catch (HeuristicRollbackException ex) {
            final XAException xaException = new XAException(XAException.XA_HEURRB);
            xaException.initCause(ex);
            throw xaException;

        } catch (HeuristicMixedException ex) {
            final XAException xaException = new XAException(XAException.XA_HEURMIX);
            xaException.initCause(ex);
            throw xaException;

        } catch (final HeuristicCommitException ex) {
            final XAException xaException = new XAException(XAException.XA_HEURCOM);
            xaException.initCause(ex);
            throw xaException;

        } catch (final IllegalStateException ex) {
            // remove tx
            SubordinationManager.getTransactionImporter().removeImportedTransaction(xid);

            final XAException xaException = new XAException(XAException.XAER_NOTA);
            xaException.initCause(ex);
            throw xaException;

        } catch (SystemException ex) {
            // remove tx
            SubordinationManager.getTransactionImporter().removeImportedTransaction(xid);

            final XAException xaException = new XAException(XAException.XAER_RMERR);
            xaException.initCause(ex);
            throw xaException;


        } 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();
        }
    }

    // This is a hack (obviously!) to workaround a bug in JBoss TS which leads to a NullPointerException in
    // com.arjuna.ats.internal.jts.orbspecific.coordinator.ArjunaTransactionImple.propagationContext() at the
    // following line (controlHandle is null)
    // Control currentControl = controlHandle.getControl();
    //
    // The bug appears to be in com.arjuna.ats.internal.jts.orbspecific.interposition.ServerControl constructor:
    // public ServerControl (ServerTransaction stx)
    // {
    //  super();
    //
    //  _realCoordinator = null;
    //  _realTerminator = null;
    //  _isWrapper = false;
    //
    // _transactionHandle = stx;
    // _theUid = stx.get_uid();
    //
    // createTransactionHandle();
    //
    // addControl();
    //
    // }
    // com.arjuna.ats.internal.jts.orbspecific.ControlImple from which the ServerControl extends
    // says this (in its protected no-arg constructor which the ServerControl calls above):
    // /**
    //  * Protected constructor for inheritance. The derived classes are
    //  * responsible for setting everything up, including adding the control to
    //  * the list of controls and assigning the Uid variable.
    //  */
    //
    // So the public ServerControl (ServerTransaction stx) is expected to call _transactionHandle.setControlHandle(this);
    // in that construct.
    //
    // This hack method does that job to workaround that bug
    private void hackJTS(final SubordinateTransaction subordinateTransaction) {
        if (subordinateTransaction instanceof TransactionImple) {
            final TransactionImple txImple = (TransactionImple) subordinateTransaction;
            final ControlWrapper controlWrapper = txImple.getControlWrapper();
            if (controlWrapper == null) {
                return;
            }
            final ControlImple controlImple = controlWrapper.getImple();
            if (controlImple == null) {
                return;
            }
            final ArjunaTransactionImple arjunaTransactionImple = controlImple.getImplHandle();
            if (arjunaTransactionImple == null) {
                return;
            }
            logger.debug("Applying a JTS hack to setControlHandle " + controlImple + " on subordinate tx " + subordinateTransaction);
            arjunaTransactionImple.setControlHandle(controlImple);
        }
    }
}
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