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.security.permission;
24  
25  import com.liferay.portal.kernel.cache.MultiVMPoolUtil;
26  import com.liferay.portal.kernel.cache.PortalCache;
27  import com.liferay.portal.kernel.util.StringMaker;
28  import com.liferay.portal.kernel.util.StringPool;
29  
30  /**
31   * <a href="PermissionCacheUtil.java.html"><b><i>View Source</i></b></a>
32   *
33   * @author Charles May
34   * @author Michael Young
35   *
36   */
37  public class PermissionCacheUtil {
38  
39      public static final String CACHE_NAME = PermissionCacheUtil.class.getName();
40  
41      public static void clearCache() {
42          _cache.removeAll();
43      }
44  
45      public static Boolean hasPermission(
46          long userId, long groupId, String name, String primKey,
47          String actionId) {
48  
49          String key = _encodeKey(userId, groupId, name, primKey, actionId);
50  
51          Boolean value = (Boolean)MultiVMPoolUtil.get(_cache, key);
52  
53          return value;
54      }
55  
56      public static Boolean putPermission(
57          long userId, long groupId, String name, String primKey, String actionId,
58          Boolean value) {
59  
60          if (value != null) {
61              String key = _encodeKey(userId, groupId, name, primKey, actionId);
62  
63              MultiVMPoolUtil.put(_cache, key, value);
64          }
65  
66          return value;
67      }
68  
69      private static String _encodeKey(
70          long userId, long groupId, String name, String primKey,
71          String actionId) {
72  
73          StringMaker sm = new StringMaker();
74  
75          sm.append(CACHE_NAME);
76          sm.append(StringPool.POUND);
77          sm.append(userId);
78          sm.append(StringPool.POUND);
79          sm.append(groupId);
80          sm.append(StringPool.POUND);
81          sm.append(name);
82          sm.append(StringPool.POUND);
83          sm.append(primKey);
84          sm.append(StringPool.POUND);
85          sm.append(actionId);
86  
87          return sm.toString();
88      }
89  
90      private static PortalCache _cache = MultiVMPoolUtil.getCache(CACHE_NAME);
91  
92  }