Java tutorial
/* * 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 org.hibernate.SessionFactory; import org.hibernate.ejb.HibernateEntityManagerFactory; import org.hibernate.stat.Statistics; import org.jboss.as.controller.OperationContext; import org.jboss.as.jpa.spi.PersistenceUnitService; import org.jboss.as.jpa.util.JPAServiceNames; import org.jboss.msc.service.ServiceController; import javax.persistence.EntityManagerFactory; /** * Utility class for management stuff * * @author Scott Marlow */ public class ManagementUtility { public static Statistics getStatistics(final OperationContext context, final String puname) { Statistics stats = null; final ServiceController<?> controller = context.getServiceRegistry(false) .getService(JPAServiceNames.getPUServiceName(puname)); if (controller != null) { // get the persistence unit service that represents the deployed persistence unit PersistenceUnitService persistenceUnitService = (PersistenceUnitService) controller.getValue(); 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 stats; } }