/*
* JBoss, Home of Professional Open Source.
* Copyright 2011, 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.hibernate4.management;
import javax.persistence.EntityManagerFactory;
import org.hibernate.SessionFactory;
import org.hibernate.ejb.HibernateEntityManagerFactory;
import org.hibernate.stat.Statistics;
import org.jboss.as.jpa.spi.PersistenceUnitService;
import org.jboss.as.jpa.spi.PersistenceUnitServiceRegistry;
/**
* For obtaining Hibernate management statistics, entity manager factory
*
* @author Scott Marlow
*/
public class ManagementLookup {
private final Statistics stats;
private final EntityManagerFactory entityManagerFactory;
public ManagementLookup(final Statistics stats, EntityManagerFactory entityManagerFactory) {
this.stats = stats;
this.entityManagerFactory = entityManagerFactory;
}
public static ManagementLookup create(PersistenceUnitServiceRegistry registry, String persistenceUnitName) {
Statistics stats = null;
PersistenceUnitService persistenceUnitService = registry.getPersistenceUnitService(persistenceUnitName);
if (persistenceUnitService != null) {
final EntityManagerFactory entityManagerFactory = persistenceUnitService.getEntityManagerFactory();
// TODO: with JPA 2.1, if unwrap is added to EMF, change cast to "entityManagerFactory.unwrap(HibernateEntityManagerFactory.class)"
HibernateEntityManagerFactory entityManagerFactoryImpl = (HibernateEntityManagerFactory) entityManagerFactory;
SessionFactory sessionFactory = entityManagerFactoryImpl.getSessionFactory();
if (sessionFactory != null) {
stats = sessionFactory.getStatistics();
return new ManagementLookup(stats, entityManagerFactory);
}
}
return null;
}
public Statistics getStatistics() {
return stats;
}
public EntityManagerFactory getEntityManagerFactory() {
return entityManagerFactory;
}
}