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 java.io.ByteArrayOutputStream; 020 021 import org.apache.camel.Exchange; 022 import org.apache.camel.Message; 023 import org.apache.camel.Processor; 024 import org.apache.camel.spi.DataFormat; 025 import org.apache.camel.util.ObjectHelper; 026 027 /** 028 * Marshals the body of the incoming message using the given 029 * <a href="http://camel.apache.org/data-format.html">data format</a> 030 * 031 * @version $Revision: 769448 $ 032 */ 033 public class MarshalProcessor implements Processor { 034 private final DataFormat dataFormat; 035 036 public MarshalProcessor(DataFormat dataFormat) { 037 this.dataFormat = dataFormat; 038 } 039 040 public void process(Exchange exchange) throws Exception { 041 ObjectHelper.notNull(dataFormat, "dataFormat"); 042 043 ByteArrayOutputStream buffer = new ByteArrayOutputStream(); 044 Message in = exchange.getIn(); 045 Object body = in.getBody(); 046 047 // lets setup the out message before we invoke the dataFormat 048 // so that it can mutate it if necessary 049 Message out = exchange.getOut(); 050 out.copyFrom(in); 051 052 dataFormat.marshal(exchange, body, buffer); 053 byte[] data = buffer.toByteArray(); 054 out.setBody(data); 055 } 056 }