001 package org.apache.fulcrum.spring;
002
003 /*
004 * Licensed to the Apache Software Foundation (ASF) under one
005 * or more contributor license agreements. See the NOTICE file
006 * distributed with this work for additional information
007 * regarding copyright ownership. The ASF licenses this file
008 * to you under the Apache License, Version 2.0 (the
009 * "License"); you may not use this file except in compliance
010 * with the License. You may obtain a copy of the License at
011 *
012 * http://www.apache.org/licenses/LICENSE-2.0
013 *
014 * Unless required by applicable law or agreed to in writing,
015 * software distributed under the License is distributed on an
016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017 * KIND, either express or implied. See the License for the
018 * specific language governing permissions and limitations
019 * under the License.
020 */
021
022 import org.springframework.beans.factory.BeanFactory;
023 import org.apache.avalon.framework.service.ServiceManager;
024 import org.apache.avalon.framework.service.ServiceException;
025
026 /**
027 * Wraps a Spring bean factory to implement an Avalon service
028 * lookup - this allows to delegate a service lookup to Spring.
029 *
030 * @author <a href="mailto:siegfried.goeschl@it20one.at">Siegfried Goeschl</a>
031 */
032 public class BeanFactoryServiceManager implements ServiceManager
033 {
034 /** Spring's bean factory */
035 private BeanFactory beanFactory;
036
037 /**
038 * Constructor
039 *
040 * @param beanFactory Spring's bean factory
041 */
042 public BeanFactoryServiceManager(BeanFactory beanFactory)
043 {
044 this.beanFactory = beanFactory;
045 }
046
047 /** @see org.apache.avalon.framework.service.ServiceManager#lookup(String) */
048 public Object lookup(String key) throws ServiceException
049 {
050 try
051 {
052 return beanFactory.getBean(key);
053 }
054 catch(Exception e)
055 {
056 throw new ServiceException(key, "Unable to lookup service using Spring's BeanFactory", e);
057 }
058 }
059
060 /** @see org.apache.avalon.framework.service.ServiceManager#hasService(String) */
061 public boolean hasService(String key)
062 {
063 return beanFactory.containsBean(key);
064 }
065
066 /** @see org.apache.avalon.framework.service.ServiceManager#release(Object) */
067 public void release(Object o)
068 {
069 // nothing to do for Spring beans
070 }
071 }