001    /* $Id: DigesterLoadingException.java 476205 2006-11-17 16:43:10Z dennisl $
002     *
003     * Licensed to the Apache Software Foundation (ASF) under one or more
004     * contributor license agreements.  See the NOTICE file distributed with
005     * this work for additional information regarding copyright ownership.
006     * The ASF licenses this file to You under the Apache License, Version 2.0
007     * (the "License"); you may not use this file except in compliance with
008     * the License.  You may obtain a copy of the License at
009     * 
010     *      http://www.apache.org/licenses/LICENSE-2.0
011     * 
012     * Unless required by applicable law or agreed to in writing, software
013     * distributed under the License is distributed on an "AS IS" BASIS,
014     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015     * See the License for the specific language governing permissions and
016     * limitations under the License.
017     */ 
018    
019    
020    package org.apache.commons.digester.xmlrules;
021    
022    
023    /**
024     * Thrown when an error occurs while parsing XML into Digester rules.
025     *
026     * @since 1.2
027     */
028    
029    public class DigesterLoadingException extends Exception {
030    
031        private Throwable cause = null;
032    
033        /**
034         * @param msg a String detailing the reason for the exception
035         */
036        public DigesterLoadingException(String msg) {
037            super(msg);
038        }
039    
040        /**
041         * @param cause underlying exception that caused this to be thrown
042         */
043        public DigesterLoadingException(Throwable cause) {
044            this(cause.getMessage());
045            this.cause = cause;
046        }
047    
048        /**
049         * @param msg a String detailing the reason for the exception
050         * @param cause underlying exception that caused this to be thrown
051         */
052        public DigesterLoadingException(String msg, Throwable cause) {
053            this(msg);
054            this.cause = cause;
055        }
056    
057        /**
058         * Return the cause of this exception (if any) as specified in the
059         * exception constructor.
060         * 
061         * @since 1.8
062         */
063        public Throwable getCause() {
064            return cause;
065        }
066    }