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 */
017 package org.apache.camel.processor;
018
019 import org.apache.camel.Exchange;
020 import org.apache.camel.Message;
021 import org.apache.camel.Processor;
022
023 /**
024 * A processor which converts the payload of the input message to be of the given type
025 * <p/>
026 * If the convertions fails an {@link org.apache.camel.InvalidPayloadException} is thrown.
027 *
028 * @version $Revision: 771351 $
029 */
030 public class ConvertBodyProcessor implements Processor {
031 private final Class type;
032 private final String charset;
033
034 public ConvertBodyProcessor(Class type) {
035 this.type = type;
036 this.charset = null;
037 }
038
039 public ConvertBodyProcessor(Class type, String charset) {
040 this.type = type;
041 this.charset = charset;
042 }
043
044 @Override
045 public String toString() {
046 return "convertBodyTo[" + type.getCanonicalName() + "]";
047 }
048
049 @SuppressWarnings("unchecked")
050 public void process(Exchange exchange) throws Exception {
051 Message in = exchange.getIn();
052 if (charset != null) {
053 exchange.setProperty(Exchange.CHARSET_NAME, charset);
054 }
055 Object value = in.getMandatoryBody(type);
056
057 if (exchange.getPattern().isOutCapable()) {
058 Message out = exchange.getOut();
059 out.copyFrom(in);
060 out.setBody(value);
061 } else {
062 in.setBody(value);
063 }
064 }
065
066 public Class getType() {
067 return type;
068 }
069 }