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