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.jms;
018    
019    import org.apache.camel.CamelContext;
020    import org.apache.camel.InvalidHeaderTypeException;
021    import org.apache.camel.Exchange;
022    import org.apache.camel.impl.DefaultExchange;
023    
024    import javax.jms.JMSException;
025    import javax.jms.Message;
026    import javax.jms.Session;
027    import java.util.Enumeration;
028    import java.util.HashMap;
029    import java.util.Map;
030    
031    /**
032     * @version $Revision: 520502 $
033     */
034    public class DefaultJmsExchange extends DefaultExchange implements JmsExchange {
035    
036        public DefaultJmsExchange(CamelContext container) {
037            super(container);
038        }
039    
040        public DefaultJmsExchange(CamelContext container, Message message) {
041            super(container);
042            setIn(new DefaultJmsMessage(message));
043        }
044    
045        @Override
046        public Exchange newInstance() {
047            return new DefaultJmsExchange(getContext());
048        }
049    
050        public Message createMessage(Session session) throws JMSException {
051            Message request = getInMessage();
052            if (request == null) {
053                request = session.createMessage();
054    
055                /** TODO
056                if (lazyHeaders != null) {
057                    // lets add any lazy headers
058                    for (Map.Entry<String, Object> entry : lazyHeaders.entrySet()) {
059                        request.setObjectProperty(entry.getKey(), entry.getValue());
060                    }
061                }
062                 */
063            }
064            return request;
065        }
066    
067        public Message getInMessage() {
068            JmsMessage jmsMessage = (JmsMessage) getIn();
069            if (jmsMessage != null) {
070                return jmsMessage.getJmsMessage();
071            }
072            return null;
073        }
074    
075        @Override
076        protected org.apache.camel.Message createInMessage() {
077            return new DefaultJmsMessage();
078        }
079    
080        @Override
081        protected org.apache.camel.Message createOutMessage() {
082            return new DefaultJmsMessage();
083        }
084    }