1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.servlet;
24  
25  import java.util.Collection;
26  import java.util.Map;
27  import java.util.concurrent.ConcurrentHashMap;
28  
29  import javax.servlet.http.HttpSession;
30  
31  /**
32   * <a href="PortalSessionContext.java.html"><b><i>View Source</i></b></a>
33   *
34   * @author Brian Wing Shun Chan
35   *
36   */
37  public class PortalSessionContext {
38  
39      public static int count() {
40          return _instance._count();
41      }
42  
43      public static HttpSession get(String sessionId) {
44          return _instance._get(sessionId);
45      }
46  
47      public static void put(String sessionId, HttpSession session) {
48          _instance._put(sessionId, session);
49      }
50  
51      public static HttpSession remove(String sessionId) {
52          return _instance._remove(sessionId);
53      }
54  
55      public static Collection<HttpSession> values() {
56          return _instance._values();
57      }
58  
59      private PortalSessionContext() {
60          _sessionPool = new ConcurrentHashMap<String, HttpSession>();
61      }
62  
63      private int _count() {
64          return _sessionPool.size();
65      }
66  
67      private HttpSession _get(String sessionId) {
68          return _sessionPool.get(sessionId);
69      }
70  
71      private void _put(String sessionId, HttpSession session) {
72          _sessionPool.put(sessionId, session);
73      }
74  
75      private HttpSession _remove(String sessionId) {
76          return _sessionPool.remove(sessionId);
77      }
78  
79      public Collection<HttpSession> _values() {
80          return _sessionPool.values();
81      }
82  
83      private static PortalSessionContext _instance = new PortalSessionContext();
84  
85      private Map<String, HttpSession> _sessionPool;
86  
87  }