1   /**
2    * Copyright (c) 2000-2007 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.util;
24  
25  import com.liferay.util.CollectionFactory;
26  
27  import java.util.Map;
28  
29  /**
30   * <a href="WebAppPool.java.html"><b><i>View Source</i></b></a>
31   *
32   * @author Brian Wing Shun Chan
33   *
34   */
35  public class WebAppPool {
36  
37      public static Object get(String webAppId, String key) {
38          return _instance._get(webAppId, key);
39      }
40  
41      public static void put(String webAppId, String key, Object obj) {
42          _instance._put(webAppId, key, obj);
43      }
44  
45      public static Object remove(String webAppId, String key) {
46          return _instance._remove(webAppId, key);
47      }
48  
49      private WebAppPool() {
50          _webAppPool = CollectionFactory.getSyncHashMap();
51      }
52  
53      private Object _get(String webAppId, String key) {
54          Map map = (Map)_webAppPool.get(webAppId);
55  
56          if (map == null) {
57              return null;
58          }
59          else {
60              return map.get(key);
61          }
62      }
63  
64      private void _put(String webAppId, String key, Object obj) {
65          Map map = (Map)_webAppPool.get(webAppId);
66  
67          if (map == null) {
68              map = CollectionFactory.getSyncHashMap();
69  
70              _webAppPool.put(webAppId, map);
71          }
72  
73          map.put(key, obj);
74      }
75  
76      private Object _remove(String webAppId, String key) {
77          Map map = (Map)_webAppPool.get(webAppId);
78  
79          if (map == null) {
80              return null;
81          }
82          else {
83              return map.remove(key);
84          }
85      }
86  
87      private static WebAppPool _instance = new WebAppPool();
88  
89      private Map _webAppPool;
90  
91  }