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1   /**
2    * This file Copyright (c) 2008-2017 Magnolia International
3    * Ltd.  (http://www.magnolia-cms.com). All rights reserved.
4    *
5    *
6    * This file is dual-licensed under both the Magnolia
7    * Network Agreement and the GNU General Public License.
8    * You may elect to use one or the other of these licenses.
9    *
10   * This file is distributed in the hope that it will be
11   * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
12   * implied warranty of MERCHANTABILITY or FITNESS FOR A
13   * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
14   * Redistribution, except as permitted by whichever of the GPL
15   * or MNA you select, is prohibited.
16   *
17   * 1. For the GPL license (GPL), you can redistribute and/or
18   * modify this file under the terms of the GNU General
19   * Public License, Version 3, as published by the Free Software
20   * Foundation.  You should have received a copy of the GNU
21   * General Public License, Version 3 along with this program;
22   * if not, write to the Free Software Foundation, Inc., 51
23   * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
24   *
25   * 2. For the Magnolia Network Agreement (MNA), this file
26   * and the accompanying materials are made available under the
27   * terms of the MNA which accompanies this distribution, and
28   * is available at http://www.magnolia-cms.com/mna.html
29   *
30   * Any modifications to this file must keep this entire header
31   * intact.
32   *
33   */
34  package info.magnolia.context;
35  
36  import info.magnolia.objectfactory.Components;
37  
38  import javax.jcr.RepositoryException;
39  import javax.jcr.Session;
40  
41  import org.slf4j.Logger;
42  import org.slf4j.LoggerFactory;
43  
44  
45  /**
46   * Returns HierarchyManagers which use a life time session. If the SystemContext uses single session the same session
47   * will be used. Otherwise an own instance of SystemRepositoryStrategy is used.
48   */
49  public class LifeTimeJCRSessionUtil {
50  
51      private static final Logger log = LoggerFactory.getLogger(LifeTimeJCRSessionUtil.class);
52  
53      private static SystemRepositoryStrategy repositoryStrategy;
54  
55      private static boolean useSystemContext;
56  
57      static {
58          SystemContext ctx = MgnlContext.getSystemContext();
59          useSystemContext = !(ctx instanceof ThreadDependentSystemContext);
60          if (!useSystemContext) {
61              log.info("Will handle lifetime sessions because the system context is of type {}", ThreadDependentSystemContext.class);
62              repositoryStrategy = Components.newInstance(SystemRepositoryStrategy.class);
63          }
64      }
65  
66      public static Session getSession(String workspaceName) throws RepositoryException {
67          if (useSystemContext) {
68              return MgnlContext.getSystemContext().getJCRSession(workspaceName);
69          }
70          // we handle the session
71          return repositoryStrategy.getSession(workspaceName);
72      }
73  
74      public static void release() {
75          if (useSystemContext) {
76              MgnlContext.getSystemContext().release();
77          } else {
78              // we handle the session
79              repositoryStrategy.release();
80          }
81      }
82  }