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Java > Open Source Codes > org > apache > geronimo > jmxremoting > Credentials


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.geronimo.jmxremoting;
18
19 import java.util.Arrays JavaDoc;
20 import java.io.Serializable JavaDoc;
21 import javax.security.auth.callback.Callback JavaDoc;
22 import javax.security.auth.callback.CallbackHandler JavaDoc;
23 import javax.security.auth.callback.NameCallback JavaDoc;
24 import javax.security.auth.callback.PasswordCallback JavaDoc;
25 import javax.security.auth.callback.UnsupportedCallbackException JavaDoc;
26
27 /**
28  * Simple wrapper for a username and password.
29  *
30  * @version $Rev: 476049 $ $Date: 2006-11-16 23:35:17 -0500 (Thu, 16 Nov 2006) $
31  */
32 public class Credentials implements CallbackHandler JavaDoc, Serializable JavaDoc {
33     private final String JavaDoc username;
34     private final char[] password;
35
36     public Credentials(String JavaDoc username, String JavaDoc password) {
37         this.username = username;
38         this.password = password == null ? null : password.toCharArray();
39     }
40
41     public void handle(Callback JavaDoc[] callbacks) throws UnsupportedCallbackException JavaDoc {
42         for (int i = 0; i < callbacks.length; i++) {
43             Callback JavaDoc callback = callbacks[i];
44             if (callback instanceof NameCallback JavaDoc) {
45                 NameCallback JavaDoc nc = (NameCallback JavaDoc) callback;
46                 nc.setName(username);
47             } else if (callback instanceof PasswordCallback JavaDoc) {
48                 PasswordCallback JavaDoc pc = (PasswordCallback JavaDoc) callback;
49                 pc.setPassword(password);
50             } else {
51                 throw new UnsupportedCallbackException JavaDoc(callback);
52             }
53         }
54     }
55
56     public void clear() {
57         if(password != null) {
58             Arrays.fill(password, '\0');
59         }
60     }
61 }
62
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