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.FactoryBean;
023 import org.springframework.beans.factory.InitializingBean;
024 import org.apache.avalon.framework.service.ServiceManager;
025
026 /**
027 * A Spring factory bean to lookup Avalon service and get a hold on
028 * them as Spring bean. Such spring bean can than be injected as dependency
029 * into other beans.
030 *
031 * @author <a href="mailto:siegfried.goeschl@it20one.at">Siegfried Goeschl</a>
032 */
033
034 public class AvalonServiceFactoryBean implements FactoryBean, InitializingBean {
035
036 /** the Avalon ServiceManager */
037 private ServiceManager serviceManager;
038
039 /** the name of the Avalon service to resolve */
040 private String serviceName;
041
042 /** the resolved Avalon service */
043 private Object service;
044
045 /**
046 * Resolve the service name to a service.
047 *
048 * @see org.springframework.beans.factory.InitializingBean#afterPropertiesSet()
049 */
050 public void afterPropertiesSet() throws Exception
051 {
052 this.service = this.serviceManager.lookup(this.serviceName);
053 }
054
055 /**
056 * Set the Avalon ServiceManager to lookup the Avalon service.
057 *
058 * @param serviceManager the Avalon ServiceManager
059 */
060 public void setServiceManager(ServiceManager serviceManager)
061 {
062 this.serviceManager = serviceManager;
063 }
064
065 /**
066 * Set the name of the Avalon service to be resolved by
067 * this Spring bean factory.
068 *
069 * @param serviceName the Avalon service name
070 */
071 public void setServiceName(String serviceName)
072 {
073 this.serviceName = serviceName;
074 }
075
076 /** @see org.springframework.beans.factory.FactoryBean#getObject() */
077 public Object getObject() throws Exception
078 {
079 return this.service;
080 }
081
082 /** @see org.springframework.beans.factory.FactoryBean#getObjectType() */
083 public Class getObjectType()
084 {
085 return this.service.getClass();
086 }
087
088 /** @see org.springframework.beans.factory.FactoryBean#isSingleton() */
089 public boolean isSingleton()
090 {
091 return true;
092 }
093 }