org.springframework.batch.core.jsr.configuration.xml.JsrDecisionParser Maven / Gradle / Ivy
/*
* Copyright 2013-2014 the original author or authors.
*
* 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
*
* https://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.springframework.batch.core.jsr.configuration.xml;
import java.util.Collection;
import org.springframework.batch.core.job.flow.JobExecutionDecider;
import org.springframework.batch.core.jsr.configuration.support.BatchArtifactType;
import org.springframework.batch.core.jsr.job.flow.support.state.JsrStepState;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.config.RuntimeBeanReference;
import org.springframework.beans.factory.parsing.BeanComponentDefinition;
import org.springframework.beans.factory.support.AbstractBeanDefinition;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.util.StringUtils;
import org.w3c.dom.Element;
/**
* Parser for the <decision /> element as specified in JSR-352. The current state
* parses a decision element and assumes that it refers to a {@link JobExecutionDecider}
*
* @author Michael Minella
* @author Chris Schaefer
* @since 3.0
*/
public class JsrDecisionParser {
private static final String ID_ATTRIBUTE = "id";
private static final String REF_ATTRIBUTE = "ref";
public Collection parse(Element element, ParserContext parserContext, String jobFactoryRef) {
BeanDefinitionBuilder factoryBuilder = BeanDefinitionBuilder.genericBeanDefinition();
AbstractBeanDefinition factoryDefinition = factoryBuilder.getRawBeanDefinition();
factoryDefinition.setBeanClass(DecisionStepFactoryBean.class);
BeanDefinitionBuilder stateBuilder = BeanDefinitionBuilder.genericBeanDefinition(JsrStepState.class);
String idAttribute = element.getAttribute(ID_ATTRIBUTE);
parserContext.registerBeanComponent(new BeanComponentDefinition(factoryDefinition, idAttribute));
stateBuilder.addConstructorArgReference(idAttribute);
String refAttribute = element.getAttribute(REF_ATTRIBUTE);
factoryDefinition.getPropertyValues().add("decider", new RuntimeBeanReference(refAttribute));
factoryDefinition.getPropertyValues().add("name", idAttribute);
if(StringUtils.hasText(jobFactoryRef)) {
factoryDefinition.setAttribute("jobParserJobFactoryBeanRef", jobFactoryRef);
}
new PropertyParser(refAttribute, parserContext, BatchArtifactType.STEP_ARTIFACT, idAttribute).parseProperties(element);
return FlowParser.getNextElements(parserContext, stateBuilder.getBeanDefinition(), element);
}
}