001    /**
002     * Copyright (c) 2000-2012 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.jcr;
016    
017    import com.liferay.portal.kernel.bean.PortalBeanLocatorUtil;
018    import com.liferay.portal.kernel.util.AutoResetThreadLocal;
019    import com.liferay.portal.kernel.util.PortalClassLoaderUtil;
020    import com.liferay.portal.kernel.util.ProxyUtil;
021    import com.liferay.portal.util.PropsValues;
022    
023    import java.io.Closeable;
024    import java.io.IOException;
025    
026    import java.util.HashMap;
027    import java.util.Map;
028    
029    import javax.jcr.RepositoryException;
030    import javax.jcr.Session;
031    
032    /**
033     * @author Michael Young
034     */
035    public class JCRFactoryUtil {
036    
037            public static void closeSession(Session session) {
038                    if (session != null) {
039                            session.logout();
040                    }
041            }
042    
043            public static Session createSession() throws RepositoryException {
044                    return createSession(null);
045            }
046    
047            public static Session createSession(String workspaceName)
048                    throws RepositoryException {
049    
050                    if (workspaceName == null) {
051                            workspaceName = JCRFactory.WORKSPACE_NAME;
052                    }
053    
054                    if (!PropsValues.JCR_WRAP_SESSION) {
055                            return getJCRFactory().createSession(workspaceName);
056                    }
057    
058                    CloseableSessionMap closableSessionMap = _closeableSessionMaps.get();
059    
060                    if (!closableSessionMap.containsKey(workspaceName)) {
061                            Session session = getJCRFactory().createSession(workspaceName);
062    
063                            Object sessionProxy = ProxyUtil.newProxyInstance(
064                                    PortalClassLoaderUtil.getClassLoader(),
065                                    new Class<?>[] {Closeable.class, Map.class, Session.class},
066                                    new JCRSessionInvocationHandler(session));
067    
068                            closableSessionMap.put(workspaceName, (Closeable)sessionProxy);
069                    }
070    
071                    return (Session)closableSessionMap.get(workspaceName);
072            }
073    
074            public static JCRFactory getJCRFactory() {
075                    if (_jcrFactory == null) {
076                            _jcrFactory = (JCRFactory)PortalBeanLocatorUtil.locate(
077                                    JCRFactory.class.getName());
078                    }
079    
080                    return _jcrFactory;
081            }
082    
083            public static void initialize() throws RepositoryException {
084                    getJCRFactory().initialize();
085            }
086    
087            public static void prepare() throws RepositoryException {
088                    getJCRFactory().prepare();
089            }
090    
091            public static void shutdown() {
092                    getJCRFactory().shutdown();
093            }
094    
095            private static ThreadLocal<CloseableSessionMap> _closeableSessionMaps =
096                    new AutoResetThreadLocal<CloseableSessionMap>(
097                            JCRFactoryUtil.class + "._session", new CloseableSessionMap());
098            private static JCRFactory _jcrFactory;
099    
100            private static class CloseableSessionMap extends HashMap<String, Closeable>
101                    implements Closeable {
102    
103                    public void close() throws IOException {
104                            for (Closeable closeableSession : values()) {
105                                    closeableSession.close();
106                            }
107                    }
108    
109            }
110    
111    }