Licensed to the Apache Software Foundation (ASF) under one or more
 contributor license agreements.  See the NOTICE file distributed with
 this work for additional information regarding copyright ownership.
 The ASF licenses this file to You under the Apache License, Version 2.0
 (the "License"); you may not use this file except in compliance with
 the License.  You may obtain a copy of the License at
    http://www.apache.org/licenses/LICENSE-2.0
 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
/**
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package javax.security.auth.message.callback;

import java.util.Arrays;

import javax.security.auth.Subject;
import javax.security.auth.callback.Callback;

Callback that enables an authentication module to supply a user name and
password (to a runtime?) and determine if the result of validation.
/**
 * Callback that enables an authentication module to supply a user name and
 * password (to a runtime?) and determine if the result of validation.
 */
public class PasswordValidationCallback implements Callback {

    private final Subject subject;
    private final String username;
    private char[] password;
    private boolean result;

    public PasswordValidationCallback(Subject subject, String username, char[] password) {
        this.subject = subject;
        this.username = username;
        this.password = password;
    }

    public Subject getSubject() {
        return subject;
    }

    public String getUsername() {
        return username;
    }

    public char[] getPassword() {
        return password;
    }

    public void clearPassword() {
        Arrays.fill(password, (char) 0);
        password = new char[0];
    }

    public void setResult(boolean result) {
        this.result = result;
    }

    public boolean getResult() {
        return result;
    }
}