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.spring.component; 019 020 import org.apache.camel.Endpoint; 021 import org.apache.camel.component.pojo.PojoEndpoint; 022 import org.apache.camel.impl.DefaultComponent; 023 import static org.apache.camel.util.ObjectHelper.notNull; 024 import org.springframework.beans.BeansException; 025 import org.springframework.context.ApplicationContext; 026 import org.springframework.context.ApplicationContextAware; 027 028 import java.util.Map; 029 030 /** 031 * An alternative to the <a href="http://activemq.apache.org/pojo.html">POJO Component</a> 032 * which implements the <a href="http://activemq.apache.org/bean.html">Bean Component</a> 033 * which will look up the URI in the Spring ApplicationContext and use that to handle message dispatching. 034 * 035 * @version $Revision: 1.1 $ 036 */ 037 public class BeanComponent extends DefaultComponent implements ApplicationContextAware { 038 private ApplicationContext applicationContext; 039 040 public BeanComponent() { 041 } 042 043 public BeanComponent(ApplicationContext applicationContext) { 044 this.applicationContext = applicationContext; 045 } 046 047 public ApplicationContext getApplicationContext() { 048 return applicationContext; 049 } 050 051 public void setApplicationContext(ApplicationContext applicationContext) throws BeansException { 052 this.applicationContext = applicationContext; 053 } 054 055 protected Endpoint createEndpoint(String uri, String remaining, Map parameters) throws Exception { 056 notNull(applicationContext, "applicationContext"); 057 Object object = applicationContext.getBean(remaining); 058 if (object != null) { 059 return new PojoEndpoint(uri, this, object); 060 } 061 return null; 062 } 063 064 }