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.activemq.xbean; 018 019 import java.beans.PropertyEditorManager; 020 import java.net.URI; 021 022 import org.apache.activemq.broker.BrokerService; 023 import org.slf4j.Logger; 024 import org.slf4j.LoggerFactory; 025 import org.apache.xbean.spring.context.ResourceXmlApplicationContext; 026 import org.apache.xbean.spring.context.impl.URIEditor; 027 import org.springframework.beans.BeansException; 028 import org.springframework.beans.factory.DisposableBean; 029 import org.springframework.beans.factory.FactoryBean; 030 import org.springframework.beans.factory.InitializingBean; 031 import org.springframework.context.ApplicationContext; 032 import org.springframework.context.ApplicationContextAware; 033 import org.springframework.core.io.Resource; 034 035 /** 036 * A Spring {@link FactoryBean} which creates an embedded broker inside a Spring 037 * XML using an external <a href="http://gbean.org/Custom+XML">XBean Spring XML 038 * configuration file</a> which provides a much neater and more concise XML 039 * format. 040 * 041 * 042 */ 043 public class BrokerFactoryBean implements FactoryBean, InitializingBean, DisposableBean, ApplicationContextAware { 044 045 static { 046 PropertyEditorManager.registerEditor(URI.class, URIEditor.class); 047 } 048 049 private Resource config; 050 private XBeanBrokerService broker; 051 private boolean start; 052 private ResourceXmlApplicationContext context; 053 private ApplicationContext parentContext; 054 055 private boolean systemExitOnShutdown; 056 private int systemExitOnShutdownExitCode; 057 058 public BrokerFactoryBean() { 059 } 060 061 public BrokerFactoryBean(Resource config) { 062 this.config = config; 063 } 064 065 public Object getObject() throws Exception { 066 return broker; 067 } 068 069 public Class getObjectType() { 070 return BrokerService.class; 071 } 072 073 public boolean isSingleton() { 074 return true; 075 } 076 077 public void setApplicationContext(ApplicationContext parentContext) throws BeansException { 078 this.parentContext = parentContext; 079 } 080 081 public void afterPropertiesSet() throws Exception { 082 if (config == null) { 083 throw new IllegalArgumentException("config property must be set"); 084 } 085 context = new ResourceXmlApplicationContext(config, parentContext); 086 087 try { 088 broker = (XBeanBrokerService)context.getBean("broker"); 089 } catch (BeansException e) { 090 // ignore... 091 // log.trace("No bean named broker available: " + e, e); 092 } 093 if (broker == null) { 094 // lets try find by type 095 String[] names = context.getBeanNamesForType(BrokerService.class); 096 for (int i = 0; i < names.length; i++) { 097 String name = names[i]; 098 broker = (XBeanBrokerService)context.getBean(name); 099 if (broker != null) { 100 break; 101 } 102 } 103 } 104 if (broker == null) { 105 throw new IllegalArgumentException("The configuration has no BrokerService instance for resource: " + config); 106 } 107 108 if( systemExitOnShutdown ) { 109 broker.addShutdownHook(new Runnable(){ 110 public void run() { 111 System.exit(systemExitOnShutdownExitCode); 112 } 113 }); 114 } 115 if (start) { 116 broker.start(); 117 } 118 } 119 120 public void destroy() throws Exception { 121 if (context != null) { 122 context.close(); 123 } 124 if (broker != null) { 125 broker.stop(); 126 } 127 } 128 129 public Resource getConfig() { 130 return config; 131 } 132 133 public void setConfig(Resource config) { 134 this.config = config; 135 } 136 137 public BrokerService getBroker() { 138 return broker; 139 } 140 141 public boolean isStart() { 142 return start; 143 } 144 145 public void setStart(boolean start) { 146 this.start = start; 147 } 148 149 public boolean isSystemExitOnStop() { 150 return systemExitOnShutdown; 151 } 152 153 public void setSystemExitOnStop(boolean systemExitOnStop) { 154 this.systemExitOnShutdown = systemExitOnStop; 155 } 156 157 public boolean isSystemExitOnShutdown() { 158 return systemExitOnShutdown; 159 } 160 161 public void setSystemExitOnShutdown(boolean systemExitOnShutdown) { 162 this.systemExitOnShutdown = systemExitOnShutdown; 163 } 164 165 public int getSystemExitOnShutdownExitCode() { 166 return systemExitOnShutdownExitCode; 167 } 168 169 public void setSystemExitOnShutdownExitCode(int systemExitOnShutdownExitCode) { 170 this.systemExitOnShutdownExitCode = systemExitOnShutdownExitCode; 171 } 172 173 }