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.Navigate;
024 import org.apache.camel.Processor;
025 import org.apache.camel.Service;
026
027 /**
028 * A {@link DefaultRoute} which starts with an
029 * <a href="http://camel.apache.org/event-driven-consumer.html">Event Driven Consumer</a>
030 *
031 * @version $Revision: 769303 $
032 */
033 public class EventDrivenConsumerRoute extends DefaultRoute {
034 private final Processor processor;
035
036 public EventDrivenConsumerRoute(Endpoint endpoint, Processor processor) {
037 super(endpoint);
038 this.processor = processor;
039 }
040
041 @Override
042 public String toString() {
043 return "EventDrivenConsumerRoute[" + getEndpoint() + " -> " + processor + "]";
044 }
045
046 public Processor getProcessor() {
047 return processor;
048 }
049
050 /**
051 * Factory method to lazily create the complete list of services required for this route
052 * such as adding the processor or consumer
053 */
054 @Override
055 protected void addServices(List<Service> services) throws Exception {
056 Endpoint endpoint = getEndpoint();
057 Consumer consumer = endpoint.createConsumer(processor);
058 if (consumer != null) {
059 services.add(consumer);
060 }
061 Processor processor = getProcessor();
062 if (processor instanceof Service) {
063 services.add((Service)processor);
064 }
065 }
066
067 @SuppressWarnings("unchecked")
068 public Navigate<Processor> navigate() {
069 if (processor instanceof Navigate) {
070 return (Navigate) processor;
071 }
072 return null;
073 }
074 }