1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    * The contents of this file are subject to the terms of the Liferay Enterprise
5    * Subscription License ("License"). You may not use this file except in
6    * compliance with the License. You can obtain a copy of the License by
7    * contacting Liferay, Inc. See the License for the specific language governing
8    * permissions and limitations under the License, including but not limited to
9    * distribution rights of the Software.
10   *
11   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
12   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
14   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
15   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
16   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
17   * SOFTWARE.
18   */
19  
20  package com.liferay.portal.servlet;
21  
22  import java.util.Collection;
23  import java.util.Map;
24  import java.util.concurrent.ConcurrentHashMap;
25  
26  import javax.servlet.http.HttpSession;
27  
28  /**
29   * <a href="PortalSessionContext.java.html"><b><i>View Source</i></b></a>
30   *
31   * @author Brian Wing Shun Chan
32   *
33   */
34  public class PortalSessionContext {
35  
36      public static int count() {
37          return _instance._count();
38      }
39  
40      public static HttpSession get(String sessionId) {
41          return _instance._get(sessionId);
42      }
43  
44      public static void put(String sessionId, HttpSession session) {
45          _instance._put(sessionId, session);
46      }
47  
48      public static HttpSession remove(String sessionId) {
49          return _instance._remove(sessionId);
50      }
51  
52      public static Collection<HttpSession> values() {
53          return _instance._values();
54      }
55  
56      private PortalSessionContext() {
57          _sessionPool = new ConcurrentHashMap<String, HttpSession>();
58      }
59  
60      private int _count() {
61          return _sessionPool.size();
62      }
63  
64      private HttpSession _get(String sessionId) {
65          return _sessionPool.get(sessionId);
66      }
67  
68      private void _put(String sessionId, HttpSession session) {
69          _sessionPool.put(sessionId, session);
70      }
71  
72      private HttpSession _remove(String sessionId) {
73          return _sessionPool.remove(sessionId);
74      }
75  
76      public Collection<HttpSession> _values() {
77          return _sessionPool.values();
78      }
79  
80      private static PortalSessionContext _instance = new PortalSessionContext();
81  
82      private Map<String, HttpSession> _sessionPool;
83  
84  }