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.impl;
018
019 import java.util.List;
020
021 import org.apache.camel.Consumer;
022 import org.apache.camel.Endpoint;
023 import org.apache.camel.Exchange;
024 import org.apache.camel.Processor;
025 import org.apache.camel.Route;
026 import org.apache.camel.Service;
027
028 /**
029 * A {@link Route} which starts with an
030 * <a href="http://activemq.apache.org/camel/event-driven-consumer.html">Event Driven Consumer</a>
031 *
032 * @version $Revision: 702954 $
033 */
034 public class EventDrivenConsumerRoute<E extends Exchange> extends Route<E> {
035 private Processor processor;
036
037 public EventDrivenConsumerRoute(Endpoint endpoint, Processor processor) {
038 super(endpoint);
039 this.processor = processor;
040 }
041
042 @Override
043 public String toString() {
044 return "EventDrivenConsumerRoute[" + getEndpoint() + " -> " + processor + "]";
045 }
046
047 public Processor getProcessor() {
048 return processor;
049 }
050
051 public void setProcessor(Processor processor) {
052 this.processor = processor;
053 }
054
055 /**
056 * Factory method to lazily create the complete list of services required for this route
057 * such as adding the processor or consumer
058 */
059 @Override
060 protected void addServices(List<Service> services) throws Exception {
061 Endpoint<E> endpoint = getEndpoint();
062 Consumer<E> consumer = endpoint.createConsumer(processor);
063 if (consumer != null) {
064 services.add(consumer);
065 }
066 Processor processor = getProcessor();
067 if (processor instanceof Service) {
068 services.add((Service)processor);
069 }
070 }
071 }