| /* Copyright 2008 Edward Yakop. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or |
| * implied. |
| * |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.zest.library.spring.bootstrap.internal.service; |
| |
| import org.apache.zest.api.service.ServiceReference; |
| import org.apache.zest.api.structure.Application; |
| import org.springframework.beans.factory.FactoryBean; |
| |
| import static org.apache.zest.functional.Iterables.first; |
| import static org.springframework.util.Assert.notNull; |
| |
| public final class ServiceFactoryBean |
| implements FactoryBean |
| { |
| private ServiceReference serviceReference; |
| |
| public ServiceFactoryBean( Application anApplication, String aServiceId ) |
| throws IllegalArgumentException |
| { |
| notNull( anApplication, "Argument [anApplication] must not be [null]." ); |
| notNull( aServiceId, "Argument [aServiceId] must not be [null]." ); |
| |
| ServiceLocator serviceLocator = new ServiceLocator( aServiceId ); |
| anApplication.descriptor().accept( serviceLocator ); |
| serviceReference = serviceLocator.locateService( anApplication ); |
| |
| if( serviceReference == null ) |
| { |
| throw new IllegalArgumentException( "Zest service with id [" + aServiceId + "] is not found." ); |
| } |
| } |
| |
| @Override |
| public final Object getObject() |
| throws Exception |
| { |
| return serviceReference.get(); |
| } |
| |
| @Override |
| public final Class getObjectType() |
| { |
| return first( serviceReference.types() ); |
| } |
| |
| @Override |
| public final boolean isSingleton() |
| { |
| return false; |
| } |
| } |