001    /* $Id: PluginException.java 471661 2006-11-06 08:09:25Z skitching $
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    package org.apache.commons.digester.plugins;
020    
021    /**
022     * Thrown when some plugin-related error has occurred, and none of the
023     * other exception types are appropriate.
024     *
025     * @since 1.6
026     */
027    
028    public class PluginException extends Exception {
029    
030        private Throwable cause = null;
031    
032        /**
033         * @param cause underlying exception that caused this to be thrown
034         */
035        public PluginException(Throwable cause) {
036            this(cause.getMessage());
037            this.cause = cause;
038        }
039    
040        /**
041         * @param msg describes the reason this exception is being thrown.
042         */
043        public PluginException(String msg) {
044            super(msg);
045        }
046    
047        /**
048         * @param msg describes the reason this exception is being thrown.
049         * @param cause underlying exception that caused this to be thrown
050         */
051        public PluginException(String msg, Throwable cause) {
052            this(msg);
053            this.cause = cause;
054        }
055        
056        /**
057         * @return the underlying exception that caused this to be thrown
058         */
059        public Throwable getCause() {
060            return cause;
061        }
062    }