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.servicemix.components.util;
018    
019    import javax.jbi.messaging.MessageExchange;
020    import javax.jbi.messaging.MessagingException;
021    import javax.jbi.messaging.NormalizedMessage;
022    
023    import org.springframework.beans.factory.InitializingBean;
024    
025    /**
026     * A Java based transformation component using a plugable {@link MessageTransformer} instance
027     * to transform the input message into the output message.
028     *
029     * @version $Revision: 564374 $
030     */
031    public class TransformComponent extends TransformComponentSupport implements InitializingBean {
032        private MessageTransformer transformer;
033    
034        public void afterPropertiesSet() throws Exception {
035            if (transformer == null) {
036                throw new IllegalArgumentException("Must specify a transformer property");
037            }
038        }
039    
040        public MessageTransformer getTransformer() {
041            return transformer;
042        }
043    
044        public void setTransformer(MessageTransformer transformer) {
045            this.transformer = transformer;
046        }
047    
048        protected boolean transform(MessageExchange exchange, NormalizedMessage in, NormalizedMessage out) throws MessagingException {
049            return transformer.transform(exchange, in, out);
050        }
051    }