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.component.restlet;
018    
019    import org.apache.camel.Endpoint;
020    import org.apache.camel.Exchange;
021    import org.apache.camel.Processor;
022    import org.apache.camel.RuntimeCamelException;
023    import org.apache.camel.impl.DefaultConsumer;
024    import org.apache.commons.logging.Log;
025    import org.apache.commons.logging.LogFactory;
026    import org.restlet.Restlet;
027    import org.restlet.data.Request;
028    import org.restlet.data.Response;
029    
030    /**
031     * A Restlet consumer acts as a server to listen client requests.
032     *
033     * @version $Revision: 730504 $
034     */
035    public class RestletConsumer extends DefaultConsumer {
036        private static final Log LOG = LogFactory.getLog(RestletConsumer.class);
037        private Restlet restlet;
038    
039        public RestletConsumer(Endpoint endpoint, Processor processor) 
040            throws Exception {
041            super(endpoint, processor);
042            
043            restlet = new Restlet() {
044                @Override
045                public void handle(Request request, Response response) {
046                    if (LOG.isDebugEnabled()) {
047                        LOG.debug("Consumer restlet handle request method: " + request.getMethod());
048                    }
049                    
050                    try {
051                        Exchange exchange = getEndpoint().createExchange();
052                        RestletBinding binding = ((RestletEndpoint)getEndpoint()).getRestletBinding();
053                        binding.populateExchangeFromRestletRequest(request, exchange);
054                        getProcessor().process(exchange);
055                        binding.populateRestletResponseFromExchange(exchange, response);
056                    } catch (Exception e) {
057                        throw new RuntimeCamelException(e);
058                    }
059                }
060            };
061        }
062    
063        @Override
064        protected void doStart() throws Exception {
065            super.doStart();
066            ((RestletEndpoint)getEndpoint()).connect(this);
067        }
068    
069        @Override
070        public void doStop() throws Exception {
071            ((RestletEndpoint)getEndpoint()).disconnect(this);
072            super.doStop();
073        }
074    
075        public Restlet getRestlet() {
076            return restlet;
077        }
078    
079    }