001// Copyright 2004, 2005 The Apache Software Foundation 002// 003// Licensed under the Apache License, Version 2.0 (the "License"); 004// you may not use this file except in compliance with the License. 005// You may obtain a copy of the License at 006// 007// http://www.apache.org/licenses/LICENSE-2.0 008// 009// Unless required by applicable law or agreed to in writing, software 010// distributed under the License is distributed on an "AS IS" BASIS, 011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 012// See the License for the specific language governing permissions and 013// limitations under the License. 014 015package org.apache.hivemind.lib.impl; 016 017import org.apache.hivemind.ServiceImplementationFactory; 018import org.apache.hivemind.ServiceImplementationFactoryParameters; 019import org.apache.hivemind.impl.BaseLocatable; 020import org.springframework.beans.factory.BeanFactory; 021 022/** 023 * Implementation of {@link org.apache.hivemind.ServiceImplementationFactory} that doesn't create 024 * beans, but instead it looks them up inside a Spring 025 * {@link org.springframework.beans.factory.BeanFactory}. 026 * 027 * @author Howard Lewis Ship 028 */ 029public class SpringLookupFactory extends BaseLocatable implements ServiceImplementationFactory 030{ 031 /** @since 1.1 */ 032 private BeanFactory _defaultBeanFactory; 033 034 public Object createCoreServiceImplementation( 035 ServiceImplementationFactoryParameters factoryParameters) 036 { 037 SpringBeanParameter p = (SpringBeanParameter) factoryParameters.getFirstParameter(); 038 String beanName = p.getName(); 039 040 BeanFactory f = p.getBeanFactory(); 041 042 if (f == null) 043 f = _defaultBeanFactory; 044 045 return f.getBean(beanName, factoryParameters.getServiceInterface()); 046 } 047 048 /** @since 1.1 */ 049 public void setDefaultBeanFactory(BeanFactory defaultBeanFactory) 050 { 051 _defaultBeanFactory = defaultBeanFactory; 052 } 053}