/*
* JBoss, Home of Professional Open Source.
* Copyright 2006, Red Hat Middleware LLC, 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.injection;
import java.lang.reflect.Proxy;
import javax.naming.NameNotFoundException;
import javax.naming.NamingException;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContextType;
import org.hibernate.Session;
import org.jboss.ejb3.entity.ExtendedEntityManager;
import org.jboss.ejb3.entity.TransactionScopedEntityManager;
import org.jboss.ejb3.entity.hibernate.ExtendedSessionInvocationHandler;
import org.jboss.ejb3.entity.hibernate.TransactionScopedSessionInvocationHandler;
import org.jboss.ejb3.stateful.StatefulContainer;
import org.jboss.jpa.deployment.ManagedEntityManagerFactory;
import org.jboss.util.naming.Util;
/**
* Comment
*
* @author <a href="mailto:bill@jboss.org">Bill Burke</a>
* @version $Revision: 75613 $
*/
public class PcEncInjector implements EncInjector
{
private static final Class[] SESS_PROXY_INTERFACES = new Class[] {
org.hibernate.classic.Session.class,
org.hibernate.engine.SessionImplementor.class,
org.hibernate.jdbc.JDBCContext.Context.class,
org.hibernate.event.EventSource.class
};
private String encName;
private String unitName;
private PersistenceContextType type;
private Class injectionType;
private String error;
public PcEncInjector(String encName, String unitName, PersistenceContextType type, Class injectionType, String error)
{
this.encName = encName;
this.unitName = unitName;
this.type = type;
this.injectionType = injectionType;
this.error = error;
}
public void inject(InjectionContainer container)
{
String error1 = error;
ManagedEntityManagerFactory factory = null;
try
{
factory = PersistenceUnitHandler.getManagedEntityManagerFactory(
container, unitName);
}
catch (NameNotFoundException e)
{
error1 += " " + e.getMessage();
}
if (factory == null)
{
throw new RuntimeException(error1);
}
if (type == PersistenceContextType.EXTENDED)
{
if (!(container instanceof StatefulContainer))
throw new RuntimeException("It is illegal to inject an EXTENDED PC into something other than a SFSB");
container.getInjectors().add(0, new ExtendedPersistenceContextInjector(factory));
Object extendedPc;
if (injectionType == null
|| injectionType.getName().equals(EntityManager.class.getName()))
{
extendedPc = new ExtendedEntityManager(factory.getKernelName());
}
else
{
ExtendedSessionInvocationHandler handler = new ExtendedSessionInvocationHandler(factory.getKernelName());
extendedPc = Proxy.newProxyInstance(
Session.class.getClassLoader(), //use the Hibernate classloader so the proxy has the same scope as Hibernate
SESS_PROXY_INTERFACES,
handler
);
}
try
{
Util.rebind(container.getEnc(), encName, extendedPc);
}
catch (NamingException e)
{
throw new RuntimeException(error1, e);
}
}
else
{
Object entityManager;
if (injectionType == null
|| injectionType.getName().equals(EntityManager.class.getName()))
{
entityManager = new TransactionScopedEntityManager(factory);
}
else
{
TransactionScopedSessionInvocationHandler handler = new TransactionScopedSessionInvocationHandler(factory);
entityManager = Proxy.newProxyInstance(
Session.class.getClassLoader(), //use the Hibernate classloader so the proxy has the same scope as Hibernate
SESS_PROXY_INTERFACES,
handler
);
}
try
{
Util.rebind(container.getEnc(), encName, entityManager);
}
catch (NamingException e)
{
throw new RuntimeException(error1, e);
}
}
}
}