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.activemq.xbean; 018 019import java.beans.PropertyEditorManager; 020import java.io.File; 021import java.net.MalformedURLException; 022import java.net.URI; 023import java.util.Map; 024 025import org.apache.activemq.broker.BrokerFactoryHandler; 026import org.apache.activemq.broker.BrokerService; 027import org.apache.activemq.util.IntrospectionSupport; 028import org.apache.activemq.util.URISupport; 029import org.slf4j.Logger; 030import org.slf4j.LoggerFactory; 031import org.apache.xbean.spring.context.ResourceXmlApplicationContext; 032import org.apache.xbean.spring.context.impl.URIEditor; 033import org.springframework.beans.BeansException; 034import org.springframework.beans.factory.xml.XmlBeanDefinitionReader; 035import org.springframework.context.ApplicationContext; 036import org.springframework.context.ApplicationContextAware; 037import org.springframework.core.io.ClassPathResource; 038import org.springframework.core.io.FileSystemResource; 039import org.springframework.core.io.Resource; 040import org.springframework.core.io.UrlResource; 041import org.springframework.util.ResourceUtils; 042 043/** 044 * 045 */ 046public class XBeanBrokerFactory implements BrokerFactoryHandler { 047 private static final transient Logger LOG = LoggerFactory.getLogger(XBeanBrokerFactory.class); 048 049 static { 050 PropertyEditorManager.registerEditor(URI.class, URIEditor.class); 051 } 052 053 private boolean validate = true; 054 public boolean isValidate() { 055 return validate; 056 } 057 058 public void setValidate(boolean validate) { 059 this.validate = validate; 060 } 061 062 public BrokerService createBroker(URI config) throws Exception { 063 064 String uri = config.getSchemeSpecificPart(); 065 if (uri.lastIndexOf('?') != -1) { 066 IntrospectionSupport.setProperties(this, URISupport.parseQuery(uri)); 067 uri = uri.substring(0, uri.lastIndexOf('?')); 068 } 069 070 ApplicationContext context = createApplicationContext(uri); 071 072 BrokerService broker = null; 073 try { 074 broker = (BrokerService)context.getBean("broker"); 075 } catch (BeansException e) { 076 } 077 078 if (broker == null) { 079 // lets try find by type 080 String[] names = context.getBeanNamesForType(BrokerService.class); 081 for (int i = 0; i < names.length; i++) { 082 String name = names[i]; 083 broker = (BrokerService)context.getBean(name); 084 if (broker != null) { 085 break; 086 } 087 } 088 } 089 if (broker == null) { 090 throw new IllegalArgumentException("The configuration has no BrokerService instance for resource: " + config); 091 } 092 093 if (broker instanceof ApplicationContextAware) { 094 ((ApplicationContextAware)broker).setApplicationContext(context); 095 } 096 097 // TODO warning resources from the context may not be closed down! 098 099 return broker; 100 } 101 102 protected ApplicationContext createApplicationContext(String uri) throws MalformedURLException { 103 LOG.debug("Now attempting to figure out the type of resource: " + uri); 104 105 Resource resource; 106 File file = new File(uri); 107 if (file.exists()) { 108 resource = new FileSystemResource(uri); 109 } else if (ResourceUtils.isUrl(uri)) { 110 resource = new UrlResource(uri); 111 } else { 112 resource = new ClassPathResource(uri); 113 } 114 return new ResourceXmlApplicationContext(resource) { 115 @Override 116 protected void initBeanDefinitionReader(XmlBeanDefinitionReader reader) { 117 reader.setValidating(isValidate()); 118 } 119 }; 120 } 121}