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: 749193 $
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(true);
050 out.copyFrom(in);
051
052 dataFormat.marshal(exchange, body, buffer);
053 byte[] data = buffer.toByteArray();
054 out.setBody(data);
055 }
056 }