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 }