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