Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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 de.extra.client.starter; import java.util.Map; import org.springframework.beans.BeansException; import org.springframework.beans.factory.config.BeanFactoryPostProcessor; import org.springframework.beans.factory.config.ConfigurableListableBeanFactory; import org.springframework.context.ApplicationContext; import org.springframework.context.ConfigurableApplicationContext; /** * Dient dazu, einen Spring-Context mit vordefinierten Beans zu starten. * * @author Thorsten Vogel * @version $Id: ApplicationContextStarter.java 538 2012-09-05 09:48:23Z * thorstenvogel@gmail.com $ */ public abstract class ApplicationContextStarter<C extends ConfigurableApplicationContext> { /** * Callback um einen nicht-initialisierten Spring-Context bereitzustellen. * * @return nicht-initialisierter Spring-Context */ protected abstract C createUninitializedContext(); /** * Startet einen Spring-Context mit extern definierten Beans. Diese Beans * werden im Spring-Context als Singleton registriert. * * @param preregisteredObjects * Map mit den vordefinierten Beans. * @return iniitalisierter {@link ApplicationContext} */ public C createApplicationContext(final Map<String, Object> preregisteredObjects) { final C context = createUninitializedContext(); final BeanFactoryPostProcessor beanFactoryPostProcessor = new BeanFactoryPostProcessor() { @Override public void postProcessBeanFactory(final ConfigurableListableBeanFactory beanFactory) throws BeansException { for (final Map.Entry<String, Object> entry : preregisteredObjects.entrySet()) { beanFactory.registerSingleton(entry.getKey(), entry.getValue()); } } }; context.addBeanFactoryPostProcessor(beanFactoryPostProcessor); context.refresh(); return context; } }