001    /**
002     *  Licensed to the Apache Software Foundation (ASF) under one or more
003     *  contributor license agreements.  See the NOTICE file distributed with
004     *  this work for additional information regarding copyright ownership.
005     *  The ASF licenses this file to You under the Apache License, Version 2.0
006     *  (the "License"); you may not use this file except in compliance with
007     *  the License.  You may obtain a copy of the License at
008     *
009     *     http://www.apache.org/licenses/LICENSE-2.0
010     *
011     *  Unless required by applicable law or agreed to in writing, software
012     *  distributed under the License is distributed on an "AS IS" BASIS,
013     *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     *  See the License for the specific language governing permissions and
015     *  limitations under the License.
016     */
017    package org.apache.geronimo.security.jaas;
018    
019    import java.io.IOException;
020    import javax.security.auth.callback.Callback;
021    import javax.security.auth.callback.CallbackHandler;
022    import javax.security.auth.callback.NameCallback;
023    import javax.security.auth.callback.PasswordCallback;
024    import javax.security.auth.callback.UnsupportedCallbackException;
025    
026    
027    /**
028     * Convenience callback handler.
029     *
030     * @version $Revision: 706640 $ $Date: 2008-10-21 14:44:05 +0000 (Tue, 21 Oct 2008) $
031     */
032    public class UsernamePasswordCallback implements CallbackHandler {
033        private final String username;
034        private final char[] password;
035    
036        public UsernamePasswordCallback(String username, char[] password) {
037            this.username = username;
038            this.password = password;
039        }
040    
041        public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException {
042            for (int i = 0; i < callbacks.length; i++) {
043                if (callbacks[i] instanceof PasswordCallback) {
044                    ((PasswordCallback) callbacks[i]).setPassword(password);
045                } else if (callbacks[i] instanceof NameCallback) {
046                    ((NameCallback) callbacks[i]).setName(username);
047                }
048            }
049        }
050    }