/*
* JBoss, Home of Professional Open Source
* Copyright 2005, JBoss Inc., and individual contributors as indicated
* by the @authors tag. See the copyright.txt 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.aspects.txlock;
import javax.transaction.TransactionManager;
import org.jboss.aop.Advisor;
import org.jboss.aop.InstanceAdvisor;
import org.jboss.aop.joinpoint.Joinpoint;
import org.jboss.aop.metadata.SimpleMetaData;
import org.jboss.aop.util.PayloadKey;
import org.jboss.tm.TransactionManagerLocator;
/**
*
* @author <a href="mailto:bill@jboss.org">Bill Burke</a>
* @version $Revision: 37406 $
*/
public class TxLockInterceptorFactory implements org.jboss.aop.advice.AspectFactory
{
private static TransactionManager getTransactionManager()
{
return TransactionManagerLocator.locateTransactionManager();
}
public Object createPerVM()
{
throw new RuntimeException("this interceptor only supports PER_CLASS and PER_INSTANCE");
}
public Object createPerClass(Advisor advisor)
{
QueuedTxLock lock = new QueuedTxLock();
advisor.getClassMetaData().addMetaData(QueuedTxLock.TXLOCK, QueuedTxLock.TXLOCK, lock, PayloadKey.TRANSIENT);
return new TxLockInterceptor(getTransactionManager(), lock);
}
public Object createPerInstance(Advisor advisor, InstanceAdvisor instanceAdvisor)
{
SimpleMetaData instanceData = instanceAdvisor.getMetaData();
QueuedTxLock lock = null;
synchronized(instanceData)
{
lock = (QueuedTxLock)instanceData.getMetaData(QueuedTxLock.TXLOCK, QueuedTxLock.TXLOCK);
if (lock == null)
{
lock = new QueuedTxLock();
instanceData.addMetaData(QueuedTxLock.TXLOCK, QueuedTxLock.TXLOCK, lock, PayloadKey.TRANSIENT);
}
}
return new TxLockInterceptor(getTransactionManager(), lock);
}
public Object createPerJoinpoint(Advisor advisor, Joinpoint jp)
{
throw new RuntimeException("this interceptor only supports PER_CLASS and PER_INSTANCE");
}
public Object createPerJoinpoint(Advisor advisor, InstanceAdvisor instanceAdvisor, Joinpoint jp)
{
throw new RuntimeException("this interceptor only supports PER_CLASS and PER_INSTANCE");
}
public String getName()
{
return getClass().getName();
}
}