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 */ 017package org.apache.camel.spring.remoting; 018 019import org.apache.camel.CamelContext; 020import org.apache.camel.CamelContextAware; 021import org.apache.camel.Consumer; 022import org.apache.camel.Endpoint; 023import org.apache.camel.component.bean.BeanProcessor; 024import org.apache.camel.spring.util.CamelContextResolverHelper; 025import org.apache.camel.util.CamelContextHelper; 026import org.apache.camel.util.ObjectHelper; 027import org.apache.camel.util.ServiceHelper; 028import org.springframework.beans.BeansException; 029import org.springframework.beans.factory.DisposableBean; 030import org.springframework.beans.factory.FactoryBean; 031import org.springframework.beans.factory.InitializingBean; 032import org.springframework.context.ApplicationContext; 033import org.springframework.context.ApplicationContextAware; 034import org.springframework.remoting.support.RemoteExporter; 035 036import static org.apache.camel.util.ObjectHelper.notNull; 037 038/** 039 * A {@link FactoryBean} to create a proxy to a service exposing a given {@link #getServiceInterface()} 040 */ 041public class CamelServiceExporter extends RemoteExporter implements InitializingBean, DisposableBean, ApplicationContextAware, CamelContextAware { 042 private String uri; 043 private CamelContext camelContext; 044 private String camelContextId; 045 private Consumer consumer; 046 private String serviceRef; 047 private ApplicationContext applicationContext; 048 049 public String getUri() { 050 return uri; 051 } 052 053 public void setUri(String uri) { 054 this.uri = uri; 055 } 056 057 public CamelContext getCamelContext() { 058 return camelContext; 059 } 060 061 public void setCamelContext(CamelContext camelContext) { 062 this.camelContext = camelContext; 063 } 064 065 public void setCamelContextId(String camelContextId) { 066 this.camelContextId = camelContextId; 067 } 068 069 public String getServiceRef() { 070 return serviceRef; 071 } 072 073 public void setServiceRef(String serviceRef) { 074 this.serviceRef = serviceRef; 075 } 076 077 public ApplicationContext getApplicationContext() { 078 return applicationContext; 079 } 080 081 public void setApplicationContext(ApplicationContext applicationContext) throws BeansException { 082 this.applicationContext = applicationContext; 083 } 084 085 public void afterPropertiesSet() throws Exception { 086 // lets bind the URI to a pojo 087 notNull(uri, "uri"); 088 // Always resolve the camel context by using the camelContextID 089 if (ObjectHelper.isNotEmpty(camelContextId)) { 090 camelContext = CamelContextResolverHelper.getCamelContextWithId(applicationContext, camelContextId); 091 } 092 notNull(camelContext, "camelContext"); 093 if (serviceRef != null && getService() == null && applicationContext != null) { 094 setService(applicationContext.getBean(serviceRef)); 095 } 096 097 Endpoint endpoint = CamelContextHelper.getMandatoryEndpoint(camelContext, uri); 098 notNull(getService(), "service"); 099 Object proxy = getProxyForService(); 100 101 consumer = endpoint.createConsumer(new BeanProcessor(proxy, camelContext)); 102 ServiceHelper.startService(consumer); 103 } 104 105 public void destroy() throws Exception { 106 ServiceHelper.startService(consumer); 107 } 108 109}