/*
* Copyright (C) 2003-2011 eXo Platform SAS.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.etk.component.base.transaction.impl.jotm;
import java.rmi.RemoteException;
import java.security.PrivilegedActionException;
import java.security.PrivilegedExceptionAction;
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;
import org.etk.common.logging.Logger;
import org.etk.common.utils.SecurityHelper;
import org.etk.component.base.naming.InitialContextInitializer;
import org.etk.component.base.transaction.ExoResource;
import org.etk.component.base.transaction.TransactionService;
import org.etk.kernel.container.xml.InitParams;
import org.objectweb.jotm.Current;
import org.objectweb.jotm.TransactionFactory;
import org.objectweb.jotm.TransactionFactoryImpl;
import org.objectweb.jotm.XidImpl;
/**
* Created by The eXo Platform SAS
* Author : eXoPlatform
* thanhvucong.78@google.com
* Aug 11, 2011
*/
public class TransactionServiceJotmImpl implements TransactionService
{
protected static Logger log = Logger.getLogger(TransactionServiceJotmImpl.class);
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)
{
try
{
SecurityHelper.doPrivilegedExceptionAction(new PrivilegedExceptionAction<Void>()
{
public Void run() throws Exception
{
TransactionFactory tm = new TransactionFactoryImpl();
current = new Current(tm);
return null;
}
});
}
catch (PrivilegedActionException pae)
{
Throwable cause = pae.getCause();
if (cause instanceof RemoteException)
{
throw (RemoteException)cause;
}
else if (cause instanceof RuntimeException)
{
throw (RuntimeException)cause;
}
else
{
throw new RuntimeException(cause);
}
}
// 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();
};
}