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 }