001/* 002 * Copyright 2013-2014 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016package org.springframework.batch.core.jsr.configuration.xml; 017 018import org.springframework.batch.core.jsr.configuration.support.BatchArtifactType; 019import org.springframework.batch.core.step.tasklet.Tasklet; 020import org.springframework.beans.factory.config.BeanDefinition; 021import org.springframework.beans.factory.config.RuntimeBeanReference; 022import org.springframework.beans.factory.support.AbstractBeanDefinition; 023import org.springframework.beans.factory.xml.AbstractSingleBeanDefinitionParser; 024import org.springframework.beans.factory.xml.ParserContext; 025import org.springframework.util.StringUtils; 026import org.w3c.dom.Element; 027 028/** 029 * Parser for the <batchlet /> tag defined in JSR-352. The current state 030 * of this parser parses a batchlet element into a {@link Tasklet} (the ref 031 * attribute is expected to point to an implementation of Tasklet). 032 * 033 * @author Michael Minella 034 * @author Chris Schaefer 035 * @since 3.0 036 */ 037public class BatchletParser extends AbstractSingleBeanDefinitionParser { 038 private static final String REF = "ref"; 039 040 public void parseBatchlet(Element batchletElement, AbstractBeanDefinition bd, ParserContext parserContext, String stepName) { 041 bd.setBeanClass(StepFactoryBean.class); 042 bd.setAttribute("isNamespaceStep", false); 043 044 String taskletRef = batchletElement.getAttribute(REF); 045 046 if (StringUtils.hasText(taskletRef)) { 047 bd.getPropertyValues().addPropertyValue("stepTasklet", new RuntimeBeanReference(taskletRef)); 048 } 049 050 bd.setRole(BeanDefinition.ROLE_SUPPORT); 051 bd.setSource(parserContext.extractSource(batchletElement)); 052 053 new PropertyParser(taskletRef, parserContext, BatchArtifactType.STEP_ARTIFACT, stepName).parseProperties(batchletElement); 054 } 055}