1   /**
2    * Copyright (c) 2000-2009 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.kernel.security.jaas;
24  
25  import java.io.Serializable;
26  
27  import java.security.Principal;
28  import java.security.acl.Group;
29  
30  import java.util.Collections;
31  import java.util.Enumeration;
32  import java.util.HashMap;
33  import java.util.Iterator;
34  import java.util.Map;
35  
36  /**
37   * <a href="PortalGroup.java.html"><b><i>View Source</i></b></a>
38   *
39   * @author Brian Wing Shun Chan
40   *
41   */
42  public class PortalGroup
43      extends PortalPrincipal implements Group, Serializable {
44  
45      public PortalGroup(String groupName) {
46          super(groupName);
47      }
48  
49      public boolean addMember(Principal user) {
50          if (!_members.containsKey(user)) {
51              _members.put(user, user);
52  
53              return true;
54          }
55          else {
56              return false;
57          }
58      }
59  
60      public boolean isMember(Principal member) {
61          boolean isMember = _members.containsKey(member);
62  
63          if (!isMember) {
64              Iterator<Principal> itr = _members.values().iterator();
65  
66              while (!isMember && itr.hasNext()) {
67                  Principal principal = itr.next();
68  
69                  if (principal instanceof Group) {
70                      Group group = (Group)principal;
71  
72                      isMember = group.isMember(member);
73                  }
74              }
75          }
76  
77          return isMember;
78      }
79  
80      public Enumeration<Principal> members() {
81          return Collections.enumeration(_members.values());
82      }
83  
84      public boolean removeMember(Principal user) {
85          Principal principal = _members.remove(user);
86  
87          if (principal != null) {
88              return true;
89          }
90          else {
91              return false;
92          }
93      }
94  
95      private Map<Principal, Principal> _members =
96          new HashMap<Principal, Principal>();
97  
98  }