| WebAppPool.java |
1 /**
2 * Copyright (c) 2000-2008 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 java.util.Map;
26 import java.util.concurrent.ConcurrentHashMap;
27
28 /**
29 * <a href="WebAppPool.java.html"><b><i>View Source</i></b></a>
30 *
31 * @author Brian Wing Shun Chan
32 *
33 */
34 public class WebAppPool {
35
36 public static Object get(String webAppId, String key) {
37 return _instance._get(webAppId, key);
38 }
39
40 public static void put(String webAppId, String key, Object obj) {
41 _instance._put(webAppId, key, obj);
42 }
43
44 public static Object remove(String webAppId, String key) {
45 return _instance._remove(webAppId, key);
46 }
47
48 private WebAppPool() {
49 _webAppPool = new ConcurrentHashMap();
50 }
51
52 private Object _get(String webAppId, String key) {
53 Map<String, Object> map = (Map<String, Object>)_webAppPool.get(
54 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<String, Object> map = (Map<String, Object>)_webAppPool.get(
66 webAppId);
67
68 if (map == null) {
69 map = new ConcurrentHashMap<String, Object>();
70
71 _webAppPool.put(webAppId, map);
72 }
73
74 map.put(key, obj);
75 }
76
77 private Object _remove(String webAppId, String key) {
78 Map<String, Object> map = (Map<String, Object>)_webAppPool.get(
79 webAppId);
80
81 if (map == null) {
82 return null;
83 }
84 else {
85 return map.remove(key);
86 }
87 }
88
89 private static WebAppPool _instance = new WebAppPool();
90
91 private Map<String, Object> _webAppPool;
92
93 }