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.JDOPersistenceManager;
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.jdo.JdoTransactionManager;
032 import org.springframework.orm.jpa.JpaTransactionManager;
033 import org.springframework.transaction.PlatformTransactionManager;
034
035
036 /**
037 * Responsible for attaching a session with the persistence mangager
038 * @author Cameron Ingram
039 * @author William Dra�
040 *
041 */
042 public class SpringPersistenceManager implements TidePersistenceManager {
043
044 private static final Logger log = Logger.getLogger(SpringPersistenceManager.class);
045
046 private TidePersistenceManager pm;
047
048
049 public SpringPersistenceManager(PlatformTransactionManager transactionManager) {
050 TideTransactionManager tm = new SpringTransactionManager(transactionManager);
051 if (transactionManager instanceof JpaTransactionManager) {
052 pm = new SpringJPAPersistenceManager((JpaTransactionManager)transactionManager, tm);
053 return;
054 }
055
056 if (transactionManager instanceof JdoTransactionManager) {
057 pm = new JDOPersistenceManager(((JdoTransactionManager)transactionManager).getPersistenceManagerFactory(), tm);
058 return;
059 }
060
061 // Check for Hibernate 3
062 if (transactionManager instanceof HibernateTransactionManager) {
063 try {
064 Object sf = transactionManager.getClass().getMethod("getSessionFactory").invoke(transactionManager);
065 Class<?> sfClass = TypeUtil.forName("org.hibernate.SessionFactory");
066 pm = (TidePersistenceManager)TypeUtil.newInstance("org.granite.tide.hibernate.HibernatePersistenceManager",
067 new Class<?>[] { sfClass, TideTransactionManager.class }, new Object[] { sf, tm });
068 }
069 catch (Exception e) {
070 log.error("Could not setup Hibernate 3 persistence manager, lazy-loading disabled. Check that granite-hibernate.jar is present in the classpath.");
071 pm = new NoPersistenceManager();
072 }
073 return;
074 }
075
076 // Check for Hibernate 4
077 try {
078 Class<?> hibernate4TM = TypeUtil.forName("org.springframework.orm.hibernate4.HibernateTransactionManager");
079 if (hibernate4TM.isInstance(transactionManager)) {
080 try {
081 Object sf = transactionManager.getClass().getMethod("getSessionFactory").invoke(transactionManager);
082 Class<?> sfClass = TypeUtil.forName("org.hibernate.SessionFactory");
083 pm = (TidePersistenceManager)TypeUtil.newInstance("org.granite.tide.hibernate4.HibernatePersistenceManager",
084 new Class<?>[] { sfClass, TideTransactionManager.class }, new Object[] { sf, tm });
085 }
086 catch (Exception e) {
087 log.error("Could not setup Hibernate 4 persistence manager, lazy-loading disabled. Check that granite-hibernate4.jar is present in the classpath.");
088 pm = new NoPersistenceManager();
089 }
090 return;
091 }
092 }
093 catch (ClassNotFoundException e) {
094 // Hibernate 4 not installed
095 }
096
097 log.error("Unsupported Spring TransactionManager, lazy-loading disabled");
098 pm = new NoPersistenceManager();
099 }
100
101
102 public Object attachEntity(Object entity, String[] propertyNames) {
103 if (pm instanceof AbstractTidePersistenceManager)
104 return ((AbstractTidePersistenceManager)pm).attachEntity(this, entity, propertyNames);
105 return pm.attachEntity(entity, propertyNames);
106 }
107
108 }