James3 를 기존 메일시스템과 연동하기 - 시작

James 3 에서 제공하는 mailbox 는 jpa, jcr, maildir, hbase, memory 입니다.

기존에 사용하던 메일 시스템의 DB, Filesystem 과 연동을 위해서는 커스터마이징이 필수적입니다.

org.apache.james.container.spring.bean.factorypostprocessor.MailboxConfigurationBeanFactoryPostProcessor 

/**************************************************************** * 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 org.apache.james.container.spring.bean.factorypostprocessor; import org.apache.commons.configuration.ConfigurationException; import org.apache.commons.configuration.HierarchicalConfiguration; import org.apache.james.container.spring.lifecycle.ConfigurationProvider; import org.springframework.beans.BeansException; import org.springframework.beans.FatalBeanException; import org.springframework.beans.factory.config.BeanFactoryPostProcessor; import org.springframework.beans.factory.config.ConfigurableListableBeanFactory; import org.springframework.beans.factory.support.BeanDefinitionRegistry; /** * Read mailbox.xml file and register the right bean alias in the * {@link BeanDefinitionRegistry} depending on the configured provider. As * default jpa is used! * * It will register it with the alias mailboxmanager */ public class MailboxConfigurationBeanFactoryPostProcessor implements BeanFactoryPostProcessor { /** * @see org.springframework.beans.factory.config.BeanFactoryPostProcessor#postProcessBeanFactory * (org.springframework.beans.factory.config.ConfigurableListableBeanFactory) */ public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException { ConfigurationProvider confProvider = beanFactory.getBean(ConfigurationProvider.class); try { HierarchicalConfiguration config = confProvider.getConfiguration("mailbox"); String provider = config.getString("provider", "jpa"); BeanDefinitionRegistry registry = (BeanDefinitionRegistry) beanFactory; String mailbox = null; String subscription = null; if (provider.equalsIgnoreCase("jpa")) { mailbox = "jpa-mailboxmanager"; subscription = "jpa-subscriptionManager"; } else if (provider.equalsIgnoreCase("memory")) { mailbox = "memory-mailboxmanager"; subscription = "memory-subscriptionManager"; } else if (provider.equalsIgnoreCase("jcr")) { mailbox = "jcr-mailboxmanager"; subscription = "jcr-subscriptionManager"; } else if (provider.equalsIgnoreCase("maildir")) { mailbox = "maildir-mailboxmanager"; subscription = "maildir-subscriptionManager"; } else if (provider.equalsIgnoreCase("hbase")) { mailbox = "hbase-mailboxmanager"; subscription = "hbase-subscriptionManager"; } if (mailbox == null) throw new ConfigurationException("Mailboxmanager provider " + provider + " not supported!"); registry.registerAlias(mailbox, "mailboxmanager"); registry.registerAlias(subscription, "subscriptionManager"); } catch (ConfigurationException e) { throw new FatalBeanException("Unable to config the mailboxmanager", e); } } }

위의 클래스에서 jdbc 용 provider 를 확장하는게 첫 시작점이 될 것 같습니다.

 

각 provider 별 spring.xml 은 아래 xml 에 import 시켜서 사용합니다.

/apache-james-mailbox/spring/src/main/resources/META-INF/org/apache/james/spring-mailbox.xml