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.io.File; 021 import java.net.MalformedURLException; 022 import java.net.URI; 023 024 import org.apache.activemq.broker.BrokerFactoryHandler; 025 import org.apache.activemq.broker.BrokerService; 026 import org.apache.commons.logging.Log; 027 import org.apache.commons.logging.LogFactory; 028 import org.apache.xbean.spring.context.ResourceXmlApplicationContext; 029 import org.apache.xbean.spring.context.impl.URIEditor; 030 import org.springframework.beans.BeansException; 031 import org.springframework.context.ApplicationContext; 032 import org.springframework.context.ApplicationContextAware; 033 import org.springframework.core.io.ClassPathResource; 034 import org.springframework.core.io.FileSystemResource; 035 import org.springframework.core.io.Resource; 036 import org.springframework.core.io.UrlResource; 037 import org.springframework.util.ResourceUtils; 038 039 /** 040 * @version $Revision$ 041 */ 042 public class XBeanBrokerFactory implements BrokerFactoryHandler { 043 private static final transient Log LOG = LogFactory.getLog(XBeanBrokerFactory.class); 044 045 static { 046 PropertyEditorManager.registerEditor(URI.class, URIEditor.class); 047 } 048 049 public BrokerService createBroker(URI config) throws Exception { 050 051 String uri = config.getSchemeSpecificPart(); 052 ApplicationContext context = createApplicationContext(uri); 053 054 BrokerService broker = null; 055 try { 056 broker = (BrokerService)context.getBean("broker"); 057 } catch (BeansException e) { 058 } 059 060 if (broker == null) { 061 // lets try find by type 062 String[] names = context.getBeanNamesForType(BrokerService.class); 063 for (int i = 0; i < names.length; i++) { 064 String name = names[i]; 065 broker = (BrokerService)context.getBean(name); 066 if (broker != null) { 067 break; 068 } 069 } 070 } 071 if (broker == null) { 072 throw new IllegalArgumentException("The configuration has no BrokerService instance for resource: " + config); 073 } 074 075 if (broker instanceof ApplicationContextAware) { 076 ((ApplicationContextAware)broker).setApplicationContext(context); 077 } 078 079 // TODO warning resources from the context may not be closed down! 080 081 return broker; 082 } 083 084 protected ApplicationContext createApplicationContext(String uri) throws MalformedURLException { 085 LOG.debug("Now attempting to figure out the type of resource: " + uri); 086 087 Resource resource; 088 File file = new File(uri); 089 if (file.exists()) { 090 resource = new FileSystemResource(uri); 091 } else if (ResourceUtils.isUrl(uri)) { 092 resource = new UrlResource(uri); 093 } else { 094 resource = new ClassPathResource(uri); 095 } 096 return new ResourceXmlApplicationContext(resource); 097 } 098 }