001    /**
002     *
003     * Licensed to the Apache Software Foundation (ASF) under one or more
004     * contributor license agreements.  See the NOTICE file distributed with
005     * this work for additional information regarding copyright ownership.
006     * The ASF licenses this file to You under the Apache License, Version 2.0
007     * (the "License"); you may not use this file except in compliance with
008     * the License.  You may obtain a copy of the License at
009     *
010     * http://www.apache.org/licenses/LICENSE-2.0
011     *
012     * Unless required by applicable law or agreed to in writing, software
013     * distributed under the License is distributed on an "AS IS" BASIS,
014     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015     * See the License for the specific language governing permissions and
016     * limitations under the License.
017     */
018    package org.apache.camel.impl;
019    
020    import org.apache.camel.Route;
021    import org.apache.camel.Endpoint;
022    import org.apache.camel.Processor;
023    import org.apache.camel.Service;
024    import org.apache.camel.Consumer;
025    import org.apache.camel.Exchange;
026    import org.apache.camel.PollingConsumer;
027    
028    import java.util.List;
029    
030    /**
031     * A {@link Route} which starts with a
032     * <a href="http://activemq.apache.org/camel/polling-consumer.html">Polling Consumer</a>
033     *
034     * @version $Revision: 1.1 $
035     */
036    public class PollingConsumerRoute<E extends Exchange> extends Route<E> {
037        private Processor processor;
038    
039        public PollingConsumerRoute(Endpoint endpoint, Processor processor) {
040            super(endpoint);
041            this.processor = processor;
042        }
043    
044        @Override
045        public String toString() {
046            return "PollingConsumerRoute[" + getEndpoint() + " -> " + processor + "]";
047        }
048    
049        public Processor getProcessor() {
050            return processor;
051        }
052    
053        public void setProcessor(Processor processor) {
054            this.processor = processor;
055        }
056    
057        /**
058         * Factory method to lazily create the complete list of services required for this route
059         * such as adding the processor or consumer
060         */
061        protected void addServices(List<Service> services) throws Exception {
062            Processor processor = getProcessor();
063            if (processor instanceof Service) {
064                Service service = (Service) processor;
065                services.add(service);
066            }
067            Endpoint<E> endpoint = getEndpoint();
068            PollingConsumer<E> consumer = endpoint.createPollingConsumer();
069            if (consumer != null) {
070                services.add(consumer);
071            }
072        }
073    }