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1   /**
2    * This file Copyright (c) 2003-2010 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.security.AccessManager;
37  import info.magnolia.cms.util.WorkspaceAccessUtil;
38  import org.slf4j.Logger;
39  import org.slf4j.LoggerFactory;
40  
41  import javax.security.auth.Subject;
42  import java.util.HashMap;
43  import java.util.Map;
44  
45  /**
46   * Uses a user based access manager.
47   */
48  public class DefaultRepositoryStrategy extends AbstractRepositoryStrategy {
49      private static final Logger log = LoggerFactory.getLogger(DefaultRepositoryStrategy.class);
50  
51      private Map<String, AccessManager> accessManagers = new HashMap<String, AccessManager>();
52      protected UserContext context;
53  
54      public DefaultRepositoryStrategy(UserContext context) {
55          this.context = context;
56      }
57  
58      public AccessManager getAccessManager(String repositoryId, String workspaceId) {
59          final String amAttrName = repositoryId + "_" + workspaceId;
60          AccessManager accessManager = accessManagers.get(amAttrName);
61  
62          if (accessManager == null) {
63              accessManager = WorkspaceAccessUtil.getInstance().createAccessManager(getSubject(), repositoryId, workspaceId);
64              accessManagers.put(amAttrName, accessManager);
65          }
66  
67          return accessManager;
68      }
69  
70      protected Subject getSubject() {
71          return this.context.getUser().getSubject();
72      }
73  
74      protected String getUserId() {
75          return this.context.getUser().getName();
76      }
77  
78      public void release() {
79          release(false);
80          accessManagers.clear();
81      }
82  
83  }
84