001    /**
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    package org.apache.camel.processor.idempotent;
019    
020    import org.apache.camel.Expression;
021    import org.apache.camel.Exchange;
022    import org.apache.camel.RuntimeCamelException;
023    
024    /**
025     * An exception thrown if no message ID could be found on a message which is to be used with the
026     * <a href="http://activemq.apache.org/camel/idempotent-consumer.html">Idempotent Consumer</a> pattern.
027     *
028     * @version $Revision: 1.1 $
029     */
030    public class NoMessageIdException extends RuntimeCamelException {
031        private final Exchange exchange;
032        private final Expression expression;
033    
034        public NoMessageIdException(Exchange exchange, Expression expression) {
035            super("No message ID could be found using expression: " + expression + " on message exchange: " + exchange);
036            this.exchange = exchange;
037            this.expression = expression;
038        }
039    
040        /**
041         * The exchange which caused this failure
042         */
043        public Exchange getExchange() {
044            return exchange;
045        }
046    
047        /**
048         * The expression which was used
049         */
050        public Expression getExpression() {
051            return expression;
052        }
053    }