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.event;
018
019 import java.util.Map;
020
021 import org.apache.camel.Exchange;
022 import org.apache.camel.impl.DefaultComponent;
023
024 import org.springframework.beans.BeansException;
025 import org.springframework.context.ApplicationContext;
026 import org.springframework.context.ApplicationContextAware;
027 import org.springframework.context.ConfigurableApplicationContext;
028
029 /**
030 * An <a href="http://activemq.apache.org/camel/event.html">Event Component</a>
031 * for working with Spring ApplicationEvents
032 *
033 * @version $Revision: 630591 $
034 */
035 public class EventComponent extends DefaultComponent<Exchange> implements ApplicationContextAware {
036 private ApplicationContext applicationContext;
037
038 public EventComponent() {
039 }
040
041 public EventComponent(ApplicationContext applicationContext) {
042 setApplicationContext(applicationContext);
043 }
044
045 public ApplicationContext getApplicationContext() {
046 return applicationContext;
047 }
048
049 public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
050 this.applicationContext = applicationContext;
051 }
052
053 public ConfigurableApplicationContext getConfigurableApplicationContext() {
054 ApplicationContext applicationContext = getApplicationContext();
055 if (applicationContext instanceof ConfigurableApplicationContext) {
056 return (ConfigurableApplicationContext)applicationContext;
057 } else {
058 throw new IllegalArgumentException("Not created with a ConfigurableApplicationContext! Was: " + applicationContext);
059 }
060 }
061
062 protected EventEndpoint createEndpoint(String uri, String remaining, Map parameters) throws Exception {
063 EventEndpoint answer = new EventEndpoint(uri, this);
064 // getConfigurableApplicationContext().addApplicationListener(answer);
065 return answer;
066 }
067 }