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2 * Licensed to the Apache Software Foundation (ASF) under one *
3 * or more contributor license agreements. See the NOTICE file *
4 * distributed with this work for additional information *
5 * regarding copyright ownership. The ASF licenses this file *
6 * to you under the Apache License, Version 2.0 (the *
7 * "License"); you may not use this file except in compliance *
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10 * http://www.apache.org/licenses/LICENSE-2.0 *
11 * *
12 * Unless required by applicable law or agreed to in writing, *
13 * software distributed under the License is distributed on an *
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15 * KIND, either express or implied. See the License for the *
16 * specific language governing permissions and limitations *
17 * under the License. *
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19
20 package org.apache.james.nntpserver;
21
22 /***
23 * Exception Wrapper, like javax.servlet.ServletException.
24 * Purpose is to catch and wrap exceptions into unchecked NNTP specific.
25 * Protocol handler catches the exception and returns error info to client.
26 * Error Information is obtained by calling 'getMessage'
27 *
28 */
29 public class NNTPException extends RuntimeException {
30
31 /***
32 * The encapsulated Throwable
33 */
34 private final Throwable t;
35
36 /***
37 * Create an NNTPException with an error message and no
38 * encapsulated <code>Throwable</code>
39 *
40 * @param msg the error message for this exception
41 */
42 public NNTPException(String msg) {
43 super(msg);
44 this.t = null;
45 }
46
47 /***
48 * Create an NNTPException with an error message and an
49 * encapsulated <code>Throwable</code>
50 *
51 * @param msg the error message for this exception
52 * @param t the encapsulated <code>Throwable</code>
53 */
54 public NNTPException(String msg,Throwable t) {
55 super(msg+((t!=null)?": "+t.toString():""));
56 this.t = t;
57 }
58
59 /***
60 * Create an NNTPException with an
61 * encapsulated <code>Throwable</code>
62 *
63 * @param t the encapsulated <code>Throwable</code>
64 */
65 public NNTPException(Throwable t) {
66 super(t.toString());
67 this.t = t;
68 }
69 }