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.log4j.config;
18
19 /**
20 * Thrown when an error is encountered whilst attempting to set a property
21 * using the {@link PropertySetter} utility class.
22 *
23 * @since 1.1
24 */
25 public class PropertySetterException extends Exception {
26 private static final long serialVersionUID = -1352613734254235861L;
27
28 /**
29 * The root cause.
30 */
31 protected Throwable rootCause;
32
33 /**
34 * Construct the exception with the given message.
35 *
36 * @param msg The message
37 */
38 public PropertySetterException(final String msg) {
39 super(msg);
40 }
41
42 /**
43 * Construct the exception with the given root cause.
44 *
45 * @param rootCause The root cause
46 */
47 public PropertySetterException(final Throwable rootCause) {
48 super();
49 this.rootCause = rootCause;
50 }
51
52 /**
53 * Returns descriptive text on the cause of this exception.
54 *
55 * @return the descriptive text.
56 */
57 @Override
58 public String getMessage() {
59 String msg = super.getMessage();
60 if (msg == null && rootCause != null) {
61 msg = rootCause.getMessage();
62 }
63 return msg;
64 }
65 }