/*
* Copyright (C) 2009 eXo Platform SAS.
*
* 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.exoplatform.services.transaction.impl.jotm;
import org.exoplatform.container.xml.InitParams;
import org.exoplatform.services.log.ExoLogger;
import org.exoplatform.services.log.Log;
import org.exoplatform.services.naming.InitialContextInitializer;
import org.exoplatform.services.transaction.ExoResource;
import org.exoplatform.services.transaction.TransactionService;
import org.objectweb.jotm.Current;
import org.objectweb.jotm.TransactionFactory;
import org.objectweb.jotm.TransactionFactoryImpl;
import org.objectweb.jotm.XidImpl;
import java.rmi.RemoteException;
import java.util.List;
import javax.transaction.RollbackException;
import javax.transaction.SystemException;
import javax.transaction.Transaction;
import javax.transaction.TransactionManager;
import javax.transaction.UserTransaction;
import javax.transaction.xa.XAResource;
import javax.transaction.xa.Xid;
/**
* Created by The eXo Platform SAS.<br/> JOTM based implementation of
* TransactionService
*
* @author <a href="mailto:gennady.azarenkov@exoplatform.com">Gennady
* Azarenkov</a>
* @version $Id: $
*/
public class TransactionServiceJotmImpl implements TransactionService
{
protected static Log log = ExoLogger.getLogger("transaction.TransactionServiceJotmImpl");
public static final String TRACK_WITHOT_TRANSACTION_PARAM = "track-without-transaction";
private boolean trackWithoutTransaction = false;
private Current current;
public TransactionServiceJotmImpl(InitialContextInitializer initializer, InitParams params) throws RemoteException
{
current = Current.getCurrent();
if (current == null)
{
TransactionFactory tm = new TransactionFactoryImpl();
current = new Current(tm);
// Change the timeout only if JOTM is not initialized yet
if (params != null)
{
if (params.getValueParam("timeout") != null)
{
int t = Integer.parseInt(params.getValueParam("timeout").getValue());
current.setDefaultTimeout(t);
}
if (params.getValueParam(TRACK_WITHOT_TRANSACTION_PARAM) != null)
{
trackWithoutTransaction =
Boolean.parseBoolean(params.getValueParam(TRACK_WITHOT_TRANSACTION_PARAM).getValue());
}
}
}
else
{
log.info("Use externally initialized JOTM: " + current);
}
}
/**
* {@inheritDoc}
*/
public TransactionManager getTransactionManager()
{
return current;
}
/**
* {@inheritDoc}
*/
public UserTransaction getUserTransaction()
{
return current;
}
/**
* {@inheritDoc}
*/
public void enlistResource(ExoResource exores) throws RollbackException, SystemException
{
XAResource xares = exores.getXAResource();
ResourceEntry entry = new ResourceEntry(exores);
exores.setPayload(entry);
Transaction tx = getTransactionManager().getTransaction();
if (tx != null)
{
current.getTransaction().enlistResource(xares);
}
else if (trackWithoutTransaction)
{
current.connectionOpened(entry);
// actual only if current.connectionOpened(entry);
// otherwise NPE inside the JOTM's Current
entry.jotmResourceList = popThreadLocalRMEventList();
pushThreadLocalRMEventList(entry.jotmResourceList);
}
}
/**
* {@inheritDoc}
*/
public void delistResource(ExoResource exores) throws RollbackException, SystemException
{
XAResource xares = exores.getXAResource();
ResourceEntry entry = (ResourceEntry)exores.getPayload();
Transaction tx = getTransactionManager().getTransaction();
if (tx != null)
{
current.getTransaction().delistResource(xares, XAResource.TMNOFLAGS);
}
else if (trackWithoutTransaction)
{
current.connectionClosed(entry);
// actual only if current.connectionClosed(entry);
if (entry != null && entry.jotmResourceList != null)
{
entry.jotmResourceList.remove(xares);
}
}
exores.setPayload(null);
}
/**
* {@inheritDoc}
*/
public Xid createXid()
{
return new XidImpl();
}
/**
* {@inheritDoc}
*/
public int getDefaultTimeout()
{
return current.getDefaultTimeout();
}
/**
* {@inheritDoc}
*/
public void setTransactionTimeout(int seconds) throws SystemException
{
current.setTransactionTimeout(seconds);
}
/**
* Push a new event list on the stack of thread local resource event sets. The
* list must contain only <code>ResourceManagerEvent</code> objects.
*
* @param eventList the possibly null list of events to store forecoming
* <code>ResourceManagerEvent</code> events occuring in the current
* thread.
*/
public void pushThreadLocalRMEventList(List eventList)
{
current.pushThreadLocalRMEventList(eventList);
};
/**
* Pop the current set from the stack of thread local resource event sets The
* list contains <code>ResourceManagerEvent</code> objects.
*
* @return The possibly null <code>ResourceManagerEvent</code> list of events
* that have occured in the current thread since the last call of
* <code>pushThreadLocalRMEventList</code> or since the thread
* started.
*/
public List popThreadLocalRMEventList()
{
return current.popThreadLocalRMEventList();
};
}