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1   /**
2    * This file Copyright (c) 2008-2011 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.cms.core.HierarchyManager;
37  import info.magnolia.cms.core.search.QueryManager;
38  import info.magnolia.cms.util.HierarchyManagerUtil;
39  import info.magnolia.objectfactory.Components;
40  
41  import javax.jcr.RepositoryException;
42  import javax.jcr.Session;
43  
44  import org.slf4j.Logger;
45  import org.slf4j.LoggerFactory;
46  
47  
48  /**
49   * Returns HierarchyManagers which use a life time session. If the SystemContext uses single session the same session
50   * will be used. Otherwise an own instance of SystemRepositoryStrategy is used.
51   *
52   * @version $Id$
53   */
54  public class LifeTimeJCRSessionUtil {
55  
56      private static final Logger log = LoggerFactory.getLogger(LifeTimeJCRSessionUtil.class);
57  
58      private static SystemRepositoryStrategy repositoryStrategy;
59  
60      private static boolean useSystemContext;
61  
62      static {
63          SystemContext ctx = MgnlContext.getSystemContext();
64          useSystemContext = !(ctx instanceof ThreadDependentSystemContext);
65          if (!useSystemContext) {
66              log.info("Will handle lifetime sessions because the system context is of type {}", ThreadDependentSystemContext.class);
67              repositoryStrategy = Components.newInstance(SystemRepositoryStrategy.class);
68          }
69      }
70  
71      @Deprecated
72      public static HierarchyManager getHierarchyManager(String workspaceName) {
73          try {
74              return HierarchyManagerUtil.asHierarchyManager(getSession(workspaceName));
75          } catch (RepositoryException e) {
76              throw new RuntimeException(e);
77          }
78  
79      }
80  
81      public static Session getSession(String workspaceName) throws RepositoryException {
82          if (useSystemContext) {
83              return MgnlContext.getSystemContext().getJCRSession(workspaceName);
84          }
85          // we handle the session
86          return repositoryStrategy.getSession(workspaceName);
87      }
88  
89      @Deprecated
90      public static QueryManager getQueryManager(String workspaceName) {
91          return getHierarchyManager(workspaceName).getQueryManager();
92      }
93  
94      public static void release() {
95          if (useSystemContext) {
96              MgnlContext.getSystemContext().release();
97          }
98          else {
99              // we handle the session
100             repositoryStrategy.release();
101         }
102     }
103 }