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Java > Open Source Codes > org > apache > servicemix > jbi > security > GroupPrincipal


1 /*
2  * Licensed to the Apache Software Foundation (ASF) under one or more
3  * contributor license agreements. See the NOTICE file distributed with
4  * this work for additional information regarding copyright ownership.
5  * The ASF licenses this file to You under the Apache License, Version 2.0
6  * (the "License"); you may not use this file except in compliance with
7  * the License. You may obtain a copy of the License at
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17 package org.apache.servicemix.jbi.security;
18
19 import java.security.Principal JavaDoc;
20
21
22 /**
23  * This principal represents a group against which authorizations are
24  * usually checked.
25  *
26  */
27 public class GroupPrincipal implements Principal JavaDoc {
28
29     public static final GroupPrincipal ANY = new GroupPrincipal("*");
30     
31     private final String JavaDoc name;
32     private transient int hash;
33
34     public GroupPrincipal(String JavaDoc name) {
35         if (name == null) throw new IllegalArgumentException JavaDoc("name cannot be null");
36         this.name = name;
37     }
38
39     public String JavaDoc getName() {
40         return name;
41     }
42
43     public boolean equals(Object JavaDoc o) {
44         if (this == o) return true;
45         if (o == null || getClass() != o.getClass()) return false;
46
47         final GroupPrincipal that = (GroupPrincipal) o;
48
49         if (!name.equals(that.name)) return false;
50
51         return true;
52     }
53
54     public int hashCode() {
55         if (hash == 0) {
56             hash = name.hashCode();
57         }
58         return hash;
59     }
60
61     public String JavaDoc toString() {
62         return name;
63     }
64 }
65
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