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Java > Open Source Codes > com > caucho > security > PermissionManager


1 /*
2  * Copyright (c) 1998-2006 Caucho Technology -- all rights reserved
3  *
4  * This file is part of Resin(R) Open Source
5  *
6  * Each copy or derived work must preserve the copyright notice and this
7  * notice unmodified.
8  *
9  * Resin Open Source is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * Resin Open Source is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17  * of NON-INFRINGEMENT. See the GNU General Public License for more
18  * details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with Resin Open Source; if not, write to the
22  * Free SoftwareFoundation, Inc.
23  * 59 Temple Place, Suite 330
24  * Boston, MA 02111-1307 USA
25  *
26  * @author Scott Ferguson
27  */
28
29 package com.caucho.security;
30
31 import com.caucho.loader.EnvironmentLocal;
32
33 import java.security.Permission JavaDoc;
34
35 /**
36  * Manages the permission for a context.
37  */
38 public class PermissionManager {
39   private static EnvironmentLocal<PermissionManager> _localPermissionManager =
40     new EnvironmentLocal<PermissionManager>("caucho.security.permission-manager");
41
42   /**
43    * Returns the context security manager.
44    */
45   public static PermissionManager getPermissionManager()
46   {
47     return _localPermissionManager.get();
48   }
49
50   /**
51    * Sets the context security manager.
52    */
53   public static void setPermissionManager(PermissionManager manager)
54   {
55     _localPermissionManager.set(manager);
56   }
57
58   /**
59    * Checks the permission.
60    */
61   public void checkPermission(Permission JavaDoc permission)
62     throws SecurityException JavaDoc
63   {
64     SecurityManager JavaDoc securityManager = System.getSecurityManager();
65
66     // First check the security manager
67 if (securityManager != null)
68       securityManager.checkPermission(permission);
69   }
70   
71   public String JavaDoc toString()
72   {
73     return "PermissionManager[]";
74   }
75 }
76
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