Java tutorial
/** * Copyright 2014-2016 yangming.liu<bytefox@126.com>. * * This copyrighted material is made available to anyone wishing to use, modify, * copy, or redistribute it subject to the terms and conditions of the GNU * Lesser General Public License, as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License * for more details. * * You should have received a copy of the GNU Lesser General Public License * along with this distribution; if not, see <http://www.gnu.org/licenses/>. */ package org.bytesoft.bytejta.supports.dubbo; import org.apache.commons.lang3.StringUtils; import org.bytesoft.bytejta.supports.wire.RemoteCoordinator; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.BeansException; import org.springframework.beans.FatalBeanException; import org.springframework.beans.MutablePropertyValues; import org.springframework.beans.PropertyValue; import org.springframework.beans.factory.config.BeanDefinition; import org.springframework.beans.factory.config.BeanFactoryPostProcessor; import org.springframework.beans.factory.config.ConfigurableListableBeanFactory; import org.springframework.beans.factory.config.RuntimeBeanReference; import org.springframework.beans.factory.support.BeanDefinitionRegistry; import org.springframework.beans.factory.support.GenericBeanDefinition; public class TransactionConfigPostProcessor implements BeanFactoryPostProcessor { static final Logger logger = LoggerFactory.getLogger(TransactionConfigPostProcessor.class); public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException { String[] beanNameArray = beanFactory.getBeanDefinitionNames(); String applicationBeanId = null; String registryBeanId = null; String transactionBeanId = null; for (int i = 0; i < beanNameArray.length; i++) { String beanName = beanNameArray[i]; BeanDefinition beanDef = beanFactory.getBeanDefinition(beanName); String beanClassName = beanDef.getBeanClassName(); if (com.alibaba.dubbo.config.ApplicationConfig.class.getName().equals(beanClassName)) { if (StringUtils.isBlank(applicationBeanId)) { applicationBeanId = beanName; } else { throw new FatalBeanException("There are more than one application name was found!"); } } else if (org.bytesoft.bytejta.TransactionCoordinator.class.getName().equals(beanClassName)) { if (StringUtils.isBlank(transactionBeanId)) { transactionBeanId = beanName; } else { throw new FatalBeanException( "There are more than one org.bytesoft.bytejta.TransactionCoordinator was found!"); } } else if (org.bytesoft.bytejta.supports.dubbo.TransactionBeanRegistry.class.getName() .equals(beanClassName)) { if (StringUtils.isBlank(registryBeanId)) { registryBeanId = beanName; } else { throw new FatalBeanException( "There are more than one org.bytesoft.bytejta.supports.dubbo.TransactionBeanRegistry was found!"); } } } if (StringUtils.isBlank(applicationBeanId)) { throw new FatalBeanException("No application name was found!"); } BeanDefinition beanDef = beanFactory.getBeanDefinition(applicationBeanId); MutablePropertyValues mpv = beanDef.getPropertyValues(); PropertyValue pv = mpv.getPropertyValue("name"); if (pv == null || pv.getValue() == null || StringUtils.isBlank(String.valueOf(pv.getValue()))) { throw new FatalBeanException("No application name was found!"); } if (StringUtils.isBlank(transactionBeanId)) { throw new FatalBeanException( "No configuration of class org.bytesoft.bytejta.TransactionCoordinator was found."); } else if (registryBeanId == null) { throw new FatalBeanException( "No configuration of class org.bytesoft.bytejta.supports.dubbo.TransactionBeanRegistry was found."); } String application = String.valueOf(pv.getValue()); this.initializeForProvider(beanFactory, application, transactionBeanId); this.initializeForConsumer(beanFactory, application, registryBeanId); } public void initializeForProvider(ConfigurableListableBeanFactory beanFactory, String application, String refBeanName) throws BeansException { BeanDefinitionRegistry registry = (BeanDefinitionRegistry) beanFactory; GenericBeanDefinition beanDef = new GenericBeanDefinition(); beanDef.setBeanClass(com.alibaba.dubbo.config.spring.ServiceBean.class); MutablePropertyValues mpv = beanDef.getPropertyValues(); mpv.addPropertyValue("interface", RemoteCoordinator.class.getName()); mpv.addPropertyValue("ref", new RuntimeBeanReference(refBeanName)); mpv.addPropertyValue("cluster", "failfast"); mpv.addPropertyValue("loadbalance", "transaction"); mpv.addPropertyValue("group", "org.bytesoft.bytejta"); mpv.addPropertyValue("retries", "0"); mpv.addPropertyValue("timeout", "5000"); String skeletonBeanId = String.format("skeleton@%s", RemoteCoordinator.class.getName()); registry.registerBeanDefinition(skeletonBeanId, beanDef); } public void initializeForConsumer(ConfigurableListableBeanFactory beanFactory, String application, String targetBeanName) throws BeansException { BeanDefinitionRegistry registry = (BeanDefinitionRegistry) beanFactory; // <dubbo:reference id="yyy" // interface="org.bytesoft.bytejta.supports.wire.RemoteCoordinator" // timeout="6000" group="org.bytesoft.bytejta" loadbalance="transaction" cluster="failfast" /> GenericBeanDefinition beanDef = new GenericBeanDefinition(); beanDef.setBeanClass(com.alibaba.dubbo.config.spring.ReferenceBean.class); MutablePropertyValues mpv = beanDef.getPropertyValues(); mpv.addPropertyValue("interface", RemoteCoordinator.class.getName()); mpv.addPropertyValue("timeout", "6000"); mpv.addPropertyValue("cluster", "failfast"); mpv.addPropertyValue("loadbalance", "transaction"); mpv.addPropertyValue("group", "org.bytesoft.bytejta"); mpv.addPropertyValue("check", "false"); String stubBeanId = String.format("stub@%s", RemoteCoordinator.class.getName()); registry.registerBeanDefinition(stubBeanId, beanDef); // <bean id="xxx" class="org.bytesoft.bytejta.supports.dubbo.TransactionBeanRegistry" // factory-method="getInstance"> // <property name="consumeCoordinator" ref="yyy" /> // </bean> BeanDefinition targetBeanDef = beanFactory.getBeanDefinition(targetBeanName); MutablePropertyValues targetMpv = targetBeanDef.getPropertyValues(); targetMpv.addPropertyValue("consumeCoordinator", new RuntimeBeanReference(stubBeanId)); } }