Java tutorial
/* * Copyright 2014 Dream.Lee * * 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.hummer.spring; import org.hummer.spring.beans.ReferenceBean; import org.springframework.beans.factory.config.BeanDefinition; import org.springframework.beans.factory.support.RootBeanDefinition; import org.springframework.beans.factory.xml.BeanDefinitionParser; import org.springframework.beans.factory.xml.ParserContext; import org.w3c.dom.Element; public class ReferenceParser implements BeanDefinitionParser { public static final String ATTR_SERVICE = "interface"; public static final String ATTR_VERSION = "version"; public static final String ATTR_TIMEOUT = "timeout"; public static final String ATTR_UNIT = "unit"; public static final String ATTR_RETRY = "retry"; private String service; private String version; private int timeout; private boolean unit; private int retry; public BeanDefinition parse(Element ele, ParserContext context) { //? service = ele.getAttribute(ATTR_SERVICE); version = ele.getAttribute(ATTR_VERSION); if (service == null || version == null) { throw new RuntimeException("?!"); } timeout = ele.getAttribute(ATTR_TIMEOUT) == null ? 3000 : Integer.parseInt(ele.getAttribute(ATTR_TIMEOUT)); unit = ele.getAttribute(ATTR_UNIT) == null ? false : Boolean.parseBoolean(ele.getAttribute(ATTR_UNIT)); retry = ele.getAttribute(ATTR_RETRY) == null ? 3 : Integer.parseInt(ele.getAttribute(ATTR_RETRY)); RootBeanDefinition root = new RootBeanDefinition(ReferenceBean.class); root.getPropertyValues().add("service", service); root.getPropertyValues().add("version", version); root.getPropertyValues().add("timeout", timeout); root.getPropertyValues().add("unit", unit); root.getPropertyValues().add("retry", retry); context.getRegistry().registerBeanDefinition(ele.getAttribute("id"), root); return root; } }