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
18package org.apache.harmony.javax.security.auth.callback;
19
20/**
21 * Thrown when a {@link CallbackHandler} does not support a particular {@link
22 * Callback}.
23 */
24public class UnsupportedCallbackException extends Exception {
25
26    private static final long serialVersionUID = -6873556327655666839L;
27
28    private Callback callback;
29
30    /**
31     * Creates a new exception instance and initializes it with just the
32     * unsupported {@code Callback}, but no error message.
33     *
34     * @param callback
35     *            the {@code Callback}
36     */
37    public UnsupportedCallbackException(Callback callback) {
38        super();
39        this.callback = callback;
40    }
41
42    /**
43     * Creates a new exception instance and initializes it with both the
44     * unsupported {@code Callback} and an error message.
45     *
46     * @param callback
47     *            the {@code Callback}
48     * @param message
49     *            the error message
50     */
51    public UnsupportedCallbackException(Callback callback, String message) {
52        super(message);
53        this.callback = callback;
54    }
55
56    /**
57     * Returns the unsupported {@code Callback} that triggered this exception.
58     *
59     * @return the {@code Callback}
60     */
61    public Callback getCallback() {
62        return callback;
63    }
64}
65