001/* $Id: XmlLoadException.java 992060 2010-09-02 19:09:47Z simonetripodi $
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
020package 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 */
028public class XmlLoadException extends RuntimeException {
029
030    private static final long serialVersionUID = 1L;
031    private Throwable cause = null;
032
033    /**
034     * @param cause underlying exception that caused this to be thrown
035     */
036    public XmlLoadException(Throwable cause) {
037        this(cause.getMessage());
038        this.cause = cause;
039    }
040
041    public XmlLoadException(String msg) {
042        super(msg);
043    }
044
045    public XmlLoadException(String msg, Throwable cause) {
046        this(msg);
047        this.cause = cause;
048    }
049    
050    /** 
051     * Returns the cause of this throwable or null if the cause is 
052     * nonexistent or unknown. 
053     */
054    @Override
055    public Throwable getCause() {
056        return cause;
057    }
058}