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 */
022package org.granite.tide.spring;
023
024import org.granite.logging.Logger;
025import org.granite.tide.TidePersistenceManager;
026import org.granite.tide.TideTransactionManager;
027import org.granite.tide.data.AbstractTidePersistenceManager;
028import org.granite.tide.data.JDOPersistenceManager;
029import org.granite.tide.data.NoPersistenceManager;
030import org.granite.util.TypeUtil;
031import org.springframework.orm.hibernate3.HibernateTransactionManager;
032import org.springframework.orm.jdo.JdoTransactionManager;
033import org.springframework.orm.jpa.JpaTransactionManager;
034import org.springframework.transaction.PlatformTransactionManager;
035
036
037/**
038 *      Responsible for attaching a session with the persistence mangager
039 *      @author Cameron Ingram
040 *      @author William Dra�
041 *
042 */
043public class SpringPersistenceManager implements TidePersistenceManager {
044    
045        private static final Logger log = Logger.getLogger(SpringPersistenceManager.class);
046        
047        private TidePersistenceManager pm;
048        
049        
050        public SpringPersistenceManager(PlatformTransactionManager transactionManager) {
051                TideTransactionManager tm = new SpringTransactionManager(transactionManager);
052                if (transactionManager instanceof JpaTransactionManager) {
053                        pm = new SpringJPAPersistenceManager((JpaTransactionManager)transactionManager, tm);
054                        return;
055                }
056                
057                if (transactionManager instanceof JdoTransactionManager) {
058                        pm = new JDOPersistenceManager(((JdoTransactionManager)transactionManager).getPersistenceManagerFactory(), tm);
059                        return;
060                }
061                
062                // Check for Hibernate 3
063                if (transactionManager instanceof HibernateTransactionManager) {
064                        try {
065                                Object sf = transactionManager.getClass().getMethod("getSessionFactory").invoke(transactionManager);
066                                Class<?> sfClass = TypeUtil.forName("org.hibernate.SessionFactory");
067                                pm = (TidePersistenceManager)TypeUtil.newInstance("org.granite.tide.hibernate.HibernatePersistenceManager", 
068                                                new Class<?>[] { sfClass, TideTransactionManager.class }, new Object[] { sf, tm });
069                        }
070                        catch (Exception e) {
071                                log.error("Could not setup Hibernate 3 persistence manager, lazy-loading disabled. Check that granite-hibernate.jar is present in the classpath.");
072                                pm = new NoPersistenceManager();
073                        }
074                        return;
075                }
076                
077                // Check for Hibernate 4
078                try {
079                        Class<?> hibernate4TM = TypeUtil.forName("org.springframework.orm.hibernate4.HibernateTransactionManager");
080                        if (hibernate4TM.isInstance(transactionManager)) {
081                                try {
082                                        Object sf = transactionManager.getClass().getMethod("getSessionFactory").invoke(transactionManager);
083                                        Class<?> sfClass = TypeUtil.forName("org.hibernate.SessionFactory");
084                                        pm = (TidePersistenceManager)TypeUtil.newInstance("org.granite.tide.hibernate4.HibernatePersistenceManager", 
085                                                        new Class<?>[] { sfClass, TideTransactionManager.class }, new Object[] { sf, tm });
086                                }
087                                catch (Exception e) {
088                                        log.error("Could not setup Hibernate 4 persistence manager, lazy-loading disabled. Check that granite-hibernate4.jar is present in the classpath.");
089                                        pm = new NoPersistenceManager();
090                                }
091                                return;
092                        }
093                }
094                catch (ClassNotFoundException e) {
095                        // Hibernate 4 not installed
096                }
097                
098                log.error("Unsupported Spring TransactionManager, lazy-loading disabled");
099                pm = new NoPersistenceManager();
100        }
101
102
103        public Object attachEntity(Object entity, String[] propertyNames) {
104                if (pm instanceof AbstractTidePersistenceManager)
105                        return ((AbstractTidePersistenceManager)pm).attachEntity(this, entity, propertyNames);
106                return pm.attachEntity(entity, propertyNames);
107        }
108
109}