spring-batch TopLevelFlowParser 源码
spring-batch TopLevelFlowParser 代码
文件路径：/spring-batch-core/src/main/java/org/springframework/batch/core/configuration/xml/TopLevelFlowParser.java
/*
* Copyright 2006-2022 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.configuration.xml;
import org.springframework.batch.core.job.flow.support.DefaultStateTransitionComparator;
import org.springframework.beans.factory.config.RuntimeBeanReference;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.util.StringUtils;
import org.w3c.dom.Element;
/**
* @author Dave Syer
* @author Michael Minella
*
*/
public class TopLevelFlowParser extends AbstractFlowParser {
private static final String ABSTRACT_ATTR = "abstract";
/**
* Parse the flow.
* @param element the top level element containing a flow definition
* @param parserContext the {@link ParserContext}
*/
@Override
protected void doParse(Element element, ParserContext parserContext, BeanDefinitionBuilder builder) {
CoreNamespaceUtils.autoregisterBeansForNamespace(parserContext, element);
String flowName = element.getAttribute(ID_ATTR);
builder.getRawBeanDefinition().setAttribute("flowName", flowName);
builder.addPropertyValue("name", flowName);
builder.addPropertyValue("stateTransitionComparator",
new RuntimeBeanReference(DefaultStateTransitionComparator.STATE_TRANSITION_COMPARATOR));
String abstractAttr = element.getAttribute(ABSTRACT_ATTR);
if (StringUtils.hasText(abstractAttr)) {
builder.setAbstract(abstractAttr.equals("true"));
}
super.doParse(element, parserContext, builder);
}
}
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