001 /**
002 * GRANITE DATA SERVICES
003 * Copyright (C) 2006-2013 GRANITE DATA SERVICES S.A.S.
004 *
005 * This file is part of the Granite Data Services Platform.
006 *
007 * Granite Data Services is free software; you can redistribute it and/or
008 * modify it under the terms of the GNU Lesser General Public
009 * License as published by the Free Software Foundation; either
010 * version 2.1 of the License, or (at your option) any later version.
011 *
012 * Granite Data Services is distributed in the hope that it will be useful,
013 * but WITHOUT ANY WARRANTY; without even the implied warranty of
014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
015 * General Public License for more details.
016 *
017 * You should have received a copy of the GNU Lesser General Public
018 * License along with this library; if not, write to the Free Software
019 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
020 * USA, or see <http://www.gnu.org/licenses/>.
021 */
022 package org.granite.tide.spring;
023
024 import javax.persistence.EntityManager;
025
026 import org.granite.logging.Logger;
027 import org.granite.tide.data.JPAPersistenceAdapter;
028 import org.granite.tide.data.TidePersistenceAdapter;
029 import org.granite.tide.data.TidePersistenceAdapterFactory;
030 import org.granite.util.TypeUtil;
031 import org.springframework.orm.hibernate3.HibernateTransactionManager;
032 import org.springframework.orm.jpa.EntityManagerFactoryUtils;
033 import org.springframework.orm.jpa.JpaTransactionManager;
034 import org.springframework.transaction.PlatformTransactionManager;
035
036
037 /**
038 * Implementation of TidePersistenceAdapterFactory for Spring
039 * Detects the platform transaction manager and creates Hibernate or JPA persistence adapters accordingly
040 *
041 * @author William Drai
042 */
043 public class SpringPersistenceAdapterFactory implements TidePersistenceAdapterFactory {
044
045 private static final Logger log = Logger.getLogger(SpringPersistenceAdapterFactory.class);
046
047 private final PlatformTransactionManager transactionManager;
048
049 public SpringPersistenceAdapterFactory(PlatformTransactionManager transactionManager) {
050 this.transactionManager = transactionManager;
051 }
052
053 public TidePersistenceAdapter newPersistenceAdapter() {
054 if (transactionManager instanceof HibernateTransactionManager) {
055 try {
056 // Use reflection to avoid runtime dependency on Hibernate
057 Object sf = transactionManager.getClass().getMethod("getSessionFactory").invoke(transactionManager);
058 Class<?> sfClass = TypeUtil.forName("org.hibernate.SessionFactory");
059 return (TidePersistenceAdapter)TypeUtil.newInstance("org.granite.tide.hibernate.HibernatePersistenceAdapter",
060 new Class<?>[] { sfClass }, new Object[] { sf });
061 }
062 catch (Exception e) {
063 log.error("Could not setup Hibernate persistence adapter, incremental changes disabled. Check that granite-hibernate.jar is present in the classpath.");
064 return null;
065 }
066 }
067 else if (transactionManager instanceof JpaTransactionManager) {
068 EntityManager em = EntityManagerFactoryUtils.getTransactionalEntityManager(((JpaTransactionManager)transactionManager).getEntityManagerFactory());
069 return new JPAPersistenceAdapter(em);
070 }
071
072 log.error("Unsupported Spring TransactionManager, incremental change s disabled. You may ");
073 return null;
074 }
075 }