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 java.util.HashMap;
025    import java.util.Map;
026    
027    import org.granite.tide.data.TideSynchronizationManager;
028    import org.granite.util.TypeUtil;
029    import org.springframework.orm.jpa.EntityManagerHolder;
030    
031    /**
032     * Responsible for registering a publishing synchronization on the JPA entity manager
033     * Delegated to Hibernate-specific workarounds when necessary
034     * @author william
035     */
036    public class JPASynchronizationManager implements TideSynchronizationManager {
037            
038            private Map<String, TideSynchronizationManager> syncsMap = new HashMap<String, TideSynchronizationManager>();
039            
040            public JPASynchronizationManager() {
041                    try {
042                            syncsMap.put("org.hibernate.impl.SessionImpl", TypeUtil.newInstance("org.granite.tide.spring.Hibernate3SynchronizationManager", TideSynchronizationManager.class));
043                    }
044                    catch (Throwable t) {
045                            // Hibernate 3 not found
046                    }
047                    try {
048                            syncsMap.put("org.hibernate.internal.SessionImpl", TypeUtil.newInstance("org.granite.tide.spring.Hibernate4SynchronizationManager", TideSynchronizationManager.class));
049                    }
050                    catch (Throwable t) {
051                            // Hibernate 4 not found
052                    }
053            }
054            
055            public boolean registerSynchronization(Object resource, boolean shouldRemoveContextAtEnd) {
056                    EntityManagerHolder entityManagerHolder = (EntityManagerHolder)resource;
057                    Object delegate = entityManagerHolder.getEntityManager().getDelegate();
058                    if (syncsMap.containsKey(delegate.getClass().getName()))
059                            return syncsMap.get(delegate.getClass().getName()).registerSynchronization(delegate, shouldRemoveContextAtEnd);
060                    
061                    return false;
062            }
063    }