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Java > Open Source Codes > com > caucho > server > security > CachingPrincipal


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.server.security;
30
31 import com.caucho.security.BasicPrincipal;
32
33 import java.util.ArrayList JavaDoc;
34
35 /**
36  * Principal which caches the roles.
37  */
38 public class CachingPrincipal extends BasicPrincipal {
39   private ArrayList JavaDoc<String JavaDoc> _roles;
40   
41   /**
42    * Zero-arg constructor for serialization.
43    */
44   public CachingPrincipal()
45   {
46   }
47
48   /**
49    * Creates a new caching principal.
50    */
51   public CachingPrincipal(String JavaDoc name)
52   {
53     super(name);
54   }
55
56   /**
57    * Returns the boolean for the role.
58    *
59    * @return null if the role status is unknown
60    */
61   public Boolean JavaDoc isInRole(String JavaDoc role)
62   {
63     if (_roles == null)
64       return null;
65     else if (_roles.indexOf(role) >= 0)
66       return Boolean.TRUE;
67     else
68       return Boolean.FALSE;
69   }
70
71   /**
72    * Sets the boolean for the role.
73    */
74   public void addRole(String JavaDoc role)
75   {
76     if (_roles == null)
77       _roles = new ArrayList JavaDoc<String JavaDoc>();
78
79     if (! _roles.contains(role))
80       _roles.add(role);
81   }
82 }
83
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