/*
* JBoss, Home of Professional Open Source.
* Copyright 2012, 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.jpa.service;
import org.jboss.as.jpa.container.JPAUserTransactionListener;
import org.jboss.as.txn.service.UserTransactionRegistryService;
import org.jboss.msc.inject.CastingInjector;
import org.jboss.msc.service.Service;
import org.jboss.msc.service.ServiceController;
import org.jboss.msc.service.ServiceListener;
import org.jboss.msc.service.ServiceName;
import org.jboss.msc.service.ServiceTarget;
import org.jboss.msc.service.StartContext;
import org.jboss.msc.service.StartException;
import org.jboss.msc.service.StopContext;
import org.jboss.msc.value.InjectedValue;
import org.jboss.tm.usertx.UserTransactionRegistry;
/**
* listen for user transaction begin events
*
* @author Scott Marlow
*/
public class JPAUserTransactionListenerService implements Service<Void> {
public static final ServiceName SERVICE_NAME = ServiceName.JBOSS.append("jpa-usertransactionlistener");
private final InjectedValue<UserTransactionRegistry> userTransactionRegistryInjectedValue = new InjectedValue<UserTransactionRegistry>();
private volatile JPAUserTransactionListener jpaUserTransactionListener = null;
@Override
public void start(StartContext context) throws StartException {
jpaUserTransactionListener = new JPAUserTransactionListener();
userTransactionRegistryInjectedValue.getValue().addListener(jpaUserTransactionListener);
}
@Override
public void stop(StopContext context) {
userTransactionRegistryInjectedValue.getValue().removeListener(jpaUserTransactionListener);
jpaUserTransactionListener = null;
}
@Override
public Void getValue() throws IllegalStateException, IllegalArgumentException {
return null;
}
public InjectedValue<UserTransactionRegistry> getUserTransactionRegistryInjectedValue() {
return userTransactionRegistryInjectedValue;
}
public static ServiceController<?> addService(ServiceTarget target, final ServiceListener<Object>... listeners) {
JPAUserTransactionListenerService jpaUserTransactionListenerService = new JPAUserTransactionListenerService();
return target.addService(SERVICE_NAME, jpaUserTransactionListenerService)
.addListener(listeners)
.addDependency(UserTransactionRegistryService.SERVICE_NAME, new CastingInjector<UserTransactionRegistry>(jpaUserTransactionListenerService.getUserTransactionRegistryInjectedValue(), UserTransactionRegistry.class))
.setInitialMode(ServiceController.Mode.ACTIVE)
.install();
}
}