001    package org.apache.jcs.utils.config;
002    
003    /*
004     * Licensed to the Apache Software Foundation (ASF) under one
005     * or more contributor license agreements.  See the NOTICE file
006     * distributed with this work for additional information
007     * regarding copyright ownership.  The ASF licenses this file
008     * to you under the Apache License, Version 2.0 (the
009     * "License"); you may not use this file except in compliance
010     * with the License.  You may obtain a copy of the License at
011     *
012     *   http://www.apache.org/licenses/LICENSE-2.0
013     *
014     * Unless required by applicable law or agreed to in writing,
015     * software distributed under the License is distributed on an
016     * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017     * KIND, either express or implied.  See the License for the
018     * specific language governing permissions and limitations
019     * under the License.
020     */
021    
022    /**
023     * This class is based on the log4j class org.apache.log4j.config.PropertySetter that was made by
024     * Anders Kristensen
025     * <p>
026     * Thrown when an error is encountered whilst attempting to set a property using the
027     * {@link PropertySetter}utility class.
028     */
029    public class PropertySetterException
030        extends Exception
031    {
032        /** DOn't change */
033        private static final long serialVersionUID = -210271658004609028L;
034    
035        /** Description of the Field */
036        protected Throwable rootCause;
037    
038        /**
039         * Constructor for the PropertySetterException object
040         * <p>
041         * @param msg
042         */
043        public PropertySetterException( String msg )
044        {
045            super( msg );
046        }
047    
048        /**
049         * Constructor for the PropertySetterException object
050         * <p>
051         * @param rootCause
052         */
053        public PropertySetterException( Throwable rootCause )
054        {
055            super();
056            this.rootCause = rootCause;
057        }
058    
059        /**
060         * Returns descriptive text on the cause of this exception.
061         * <p>
062         * @return The message value
063         */
064        @Override
065        public String getMessage()
066        {
067            String msg = super.getMessage();
068            if ( msg == null && rootCause != null )
069            {
070                msg = rootCause.getMessage();
071            }
072            return msg;
073        }
074    }