001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.camel;
018
019/**
020 * Is thrown if the payload from the exchange could not be retrieved because of being null, wrong class type etc.
021 */
022public class InvalidPayloadException extends CamelExchangeException {
023
024    private final transient Class<?> type;
025
026    public InvalidPayloadException(Exchange exchange, Class<?> type) {
027        this(exchange, type, exchange.getIn());
028    }
029
030    public InvalidPayloadException(Exchange exchange, Class<?> type, Message message) {
031        super("No body available of type: " + type.getCanonicalName()
032              + NoSuchPropertyException.valueDescription(message.getBody()) + " on: " + message, exchange);
033        this.type = type;
034    }
035
036    public InvalidPayloadException(Exchange exchange, Class<?> type, Message message, Throwable cause) {
037        super("No body available of type: " + type.getCanonicalName()
038              + NoSuchPropertyException.valueDescription(message.getBody()) + " on: " + message
039              + ". Caused by: " + cause.getMessage(), exchange, cause);
040        this.type = type;
041    }
042
043    /**
044     * The expected type of the body
045     */
046    public Class<?> getType() {
047        return type;
048    }
049}