content: /**
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You under the Apache License, Version 2.0
   * (the "License"); you may not use this file except in compliance with
   * the License.  You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.apache.activemq.xbean;
  
  import java.beans.PropertyEditorManager;
  import java.net.URI;
  
  import org.apache.activemq.broker.BrokerService;
  import org.apache.xbean.spring.context.ResourceXmlApplicationContext;
  import org.apache.xbean.spring.context.impl.URIEditor;
  import org.springframework.beans.BeansException;
  import org.springframework.beans.factory.DisposableBean;
  import org.springframework.beans.factory.FactoryBean;
  import org.springframework.beans.factory.InitializingBean;
  import org.springframework.context.ApplicationContext;
  import org.springframework.context.ApplicationContextAware;
  import org.springframework.core.io.Resource;
  
  /**
   * A Spring {@link FactoryBean} which creates an embedded broker inside a Spring
   * XML using an external <a href="http://gbean.org/Custom+XML">XBean Spring XML
   * configuration file</a> which provides a much neater and more concise XML
   * format.
   * 
   * 
   */
  public class BrokerFactoryBean implements FactoryBean, InitializingBean, DisposableBean, ApplicationContextAware {
  
      static {
          PropertyEditorManager.registerEditor(URI.class, URIEditor.class);
      }
  
      private Resource config;
      private XBeanBrokerService broker;
      private boolean start;
      private ResourceXmlApplicationContext context;
      private ApplicationContext parentContext;
      
      private boolean systemExitOnShutdown;
      private int systemExitOnShutdownExitCode;
  
      public BrokerFactoryBean() {
      }
  
      public BrokerFactoryBean(Resource config) {
          this.config = config;
      }
  
      public Object getObject() throws Exception {
          return broker;
      }
  
      public Class getObjectType() {
          return BrokerService.class;
      }
  
      public boolean isSingleton() {
          return true;
      }
  
      public void setApplicationContext(ApplicationContext parentContext) throws BeansException {
          this.parentContext = parentContext;
      }
  
      public void afterPropertiesSet() throws Exception {
          if (config == null) {
              throw new IllegalArgumentException("config property must be set");
          }
          context = new ResourceXmlApplicationContext(config, parentContext);
  
          try {
              broker = (XBeanBrokerService)context.getBean("broker");
          } catch (BeansException e) {
              // ignore...
              // log.trace("No bean named broker available: " + e, e);
          }
          if (broker == null) {
              // lets try find by type
              String[] names = context.getBeanNamesForType(BrokerService.class);
              for (int i = 0; i < names.length; i++) {
                  String name = names[i];
                  broker = (XBeanBrokerService)context.getBean(name);
                  if (broker != null) {
                      break;
                  }
              }
          }
          if (broker == null) {
              throw new IllegalArgumentException("The configuration has no BrokerService instance for resource: " + config);
          }
          
          if( systemExitOnShutdown ) {
              broker.addShutdownHook(new Runnable(){
                  public void run() {
                      System.exit(systemExitOnShutdownExitCode);
                  }
              });
          }
          if (start) {
              broker.start();
          }
      }
  
      public void destroy() throws Exception {
          if (context != null) {
              context.close();
          }
          if (broker != null) {
              broker.stop();
          }
      }
  
      public Resource getConfig() {
          return config;
      }
  
      public void setConfig(Resource config) {
          this.config = config;
      }
  
      public BrokerService getBroker() {
          return broker;
      }
  
      public boolean isStart() {
          return start;
      }
  
      public void setStart(boolean start) {
          this.start = start;
      }
  
      public boolean isSystemExitOnStop() {
          return systemExitOnShutdown;
      }
  
      public void setSystemExitOnStop(boolean systemExitOnStop) {
          this.systemExitOnShutdown = systemExitOnStop;
      }
  
      public boolean isSystemExitOnShutdown() {
          return systemExitOnShutdown;
      }
  
      public void setSystemExitOnShutdown(boolean systemExitOnShutdown) {
          this.systemExitOnShutdown = systemExitOnShutdown;
      }
  
      public int getSystemExitOnShutdownExitCode() {
          return systemExitOnShutdownExitCode;
      }
  
      public void setSystemExitOnShutdownExitCode(int systemExitOnShutdownExitCode) {
          this.systemExitOnShutdownExitCode = systemExitOnShutdownExitCode;
      }
  
  }
  