Java tutorial
/** * Copyright (C) 2015 The Gravitee team (http://gravitee.io) * * 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 io.gravitee.common.spring.factory; import org.springframework.beans.factory.InitializingBean; import org.springframework.beans.factory.config.AbstractFactoryBean; import org.springframework.context.ApplicationContext; import org.springframework.context.ApplicationContextAware; /** * @author David BRASSELY (david.brassely at graviteesource.com) * @author GraviteeSource Team */ public abstract class AbstractAutowiringFactoryBean<T> extends AbstractFactoryBean<T> implements ApplicationContextAware { private ApplicationContext applicationContext; @Override public void setApplicationContext(final ApplicationContext applicationContext) { this.applicationContext = applicationContext; } @Override protected final T createInstance() throws Exception { final T instance = doCreateInstance(); if (instance != null) { applicationContext.getAutowireCapableBeanFactory().autowireBean(instance); if (instance instanceof ApplicationContextAware) { ((ApplicationContextAware) instance).setApplicationContext(applicationContext); } if (instance instanceof InitializingBean) { ((InitializingBean) instance).afterPropertiesSet(); } } return instance; } /** * Create the bean instance. * * @see #createInstance() */ protected abstract T doCreateInstance() throws Exception; }