/*
* 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.commons.utils.SecurityHelper;
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.impl.AbstractTransactionService;
import org.objectweb.jotm.Current;
import org.objectweb.jotm.TransactionFactory;
import org.objectweb.jotm.TransactionFactoryImpl;
import java.rmi.RemoteException;
import java.security.PrivilegedActionException;
import java.security.PrivilegedExceptionAction;
import javax.transaction.TransactionManager;
import javax.transaction.UserTransaction;
/**
* 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 extends AbstractTransactionService
{
protected static Log log = ExoLogger.getLogger("exo.kernel.component.common.TransactionServiceJotmImpl");
private final int defaultTimeout;
/**
* Default constructor
* @param initializer we enforce a dependency with the InitialContextInitializer to
* ensure that the related binded resources have been defined
* @param params the init parameters
*/
public TransactionServiceJotmImpl(InitialContextInitializer initializer, InitParams params)
{
if (params != null && params.getValueParam("timeout") != null)
{
this.defaultTimeout = Integer.parseInt(params.getValueParam("timeout").getValue());
}
else
{
this.defaultTimeout = -1;
}
}
/**
* {@inheritDoc}
*/
public TransactionManager findTransactionManager() throws Exception
{
Current current = Current.getCurrent();
if (current == null)
{
try
{
current = SecurityHelper.doPrivilegedExceptionAction(new PrivilegedExceptionAction<Current>()
{
public Current run() throws Exception
{
TransactionFactory tm = new TransactionFactoryImpl();
return new Current(tm);
}
});
}
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 (defaultTimeout > 0)
{
current.setDefaultTimeout(defaultTimeout);
}
}
else
{
log.info("Use externally initialized JOTM: " + current);
}
return current;
}
/**
* {@inheritDoc}
*/
public UserTransaction findUserTransaction()
{
return (UserTransaction)getTransactionManager();
}
/**
* {@inheritDoc}
*/
@Override
public int getDefaultTimeout()
{
return ((Current)getTransactionManager()).getDefaultTimeout();
}
}