001 /*
002 GRANITE DATA SERVICES
003 Copyright (C) 2011 GRANITE DATA SERVICES S.A.S.
004
005 This file is part of Granite Data Services.
006
007 Granite Data Services is free software; you can redistribute it and/or modify
008 it under the terms of the GNU Library General Public License as published by
009 the Free Software Foundation; either version 2 of the License, or (at your
010 option) any later version.
011
012 Granite Data Services is distributed in the hope that it will be useful, but
013 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
014 FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
015 for more details.
016
017 You should have received a copy of the GNU Library General Public License
018 along with this library; if not, see <http://www.gnu.org/licenses/>.
019 */
020
021 package org.granite.tide.spring;
022
023 import org.granite.logging.Logger;
024 import org.granite.tide.TidePersistenceManager;
025 import org.granite.tide.TideTransactionManager;
026 import org.granite.tide.data.AbstractTidePersistenceManager;
027 import org.granite.tide.data.JPAPersistenceManager;
028 import org.granite.tide.data.NoPersistenceManager;
029 import org.granite.util.TypeUtil;
030 import org.springframework.orm.hibernate3.HibernateTransactionManager;
031 import org.springframework.orm.jpa.JpaTransactionManager;
032 import org.springframework.transaction.PlatformTransactionManager;
033
034
035 /**
036 * Responsible for attaching a session with the persistence mangager
037 * @author Cameron Ingram
038 * @author William Dra�
039 *
040 */
041 public class SpringPersistenceManager implements TidePersistenceManager {
042
043 private static final Logger log = Logger.getLogger(SpringPersistenceManager.class);
044
045 private TidePersistenceManager pm;
046
047
048 public SpringPersistenceManager(PlatformTransactionManager transactionManager) {
049 TideTransactionManager tm = new SpringTransactionManager(transactionManager);
050 if (transactionManager instanceof HibernateTransactionManager) {
051 try {
052 Object sf = transactionManager.getClass().getMethod("getSessionFactory").invoke(transactionManager);
053 Class<?> sfClass = TypeUtil.forName("org.hibernate.SessionFactory");
054 pm = (TidePersistenceManager)TypeUtil.newInstance("org.granite.tide.hibernate.HibernatePersistenceManager",
055 new Class<?>[] { sfClass, TideTransactionManager.class }, new Object[] { sf, tm });
056 }
057 catch (Exception e) {
058 log.error("Could not setup Hibernate persistence manager, lazy-loading disabled. Check that granite-hibernate.jar is present in the classpath.");
059 pm = new NoPersistenceManager();
060 }
061 }
062 else if (transactionManager instanceof JpaTransactionManager) {
063 pm = new JPAPersistenceManager(((JpaTransactionManager)transactionManager).getEntityManagerFactory(), tm);
064 }
065 else {
066 log.error("Unsupported Spring TransactionManager, lazy-loading disabled");
067 pm = new NoPersistenceManager();
068 }
069 }
070
071
072 public Object attachEntity(Object entity, String[] propertyNames) {
073 if (pm instanceof AbstractTidePersistenceManager)
074 return ((AbstractTidePersistenceManager)pm).attachEntity(this, entity, propertyNames);
075 return pm.attachEntity(entity, propertyNames);
076 }
077
078 }