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/*
* Copyright 2013-2018 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 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.AbstractSingleBeanDefinitionParser;
import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.util.StringUtils;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import java.util.Collection;
/**
* Parser for the <step /> element defined by JSR-352.
*
* @author Michael Minella
* @author Glenn Renfro
* @author Chris Schaefer
* @author Mahmoud Ben Hassine
* @since 3.0
*/
public class StepParser extends AbstractSingleBeanDefinitionParser {
private static final String CHUNK_ELEMENT = "chunk";
private static final String BATCHLET_ELEMENT = "batchlet";
private static final String ALLOW_START_IF_COMPLETE_ATTRIBUTE = "allow-start-if-complete";
private static final String START_LIMIT_ATTRIBUTE = "start-limit";
private static final String SPLIT_ID_ATTRIBUTE = "id";
private static final String PARTITION_ELEMENT = "partition";
protected Collection parse(Element element, ParserContext parserContext, BeanDefinitionBuilder builder) {
BeanDefinitionBuilder defBuilder = BeanDefinitionBuilder.genericBeanDefinition();
AbstractBeanDefinition bd = defBuilder.getRawBeanDefinition();
bd.setBeanClass(StepFactoryBean.class);
bd.getPropertyValues().addPropertyValue("batchPropertyContext", new RuntimeBeanReference("batchPropertyContext"));
BeanDefinitionBuilder stateBuilder = BeanDefinitionBuilder.genericBeanDefinition(JsrStepState.class);
String stepName = element.getAttribute(SPLIT_ID_ATTRIBUTE);
builder.addPropertyValue("name", stepName);
parserContext.registerBeanComponent(new BeanComponentDefinition(bd, stepName));
stateBuilder.addConstructorArgReference(stepName);
String startLimit = element.getAttribute(START_LIMIT_ATTRIBUTE);
if(StringUtils.hasText(startLimit)) {
bd.getPropertyValues().addPropertyValue("startLimit", startLimit);
}
String allowStartIfComplete = element.getAttribute(ALLOW_START_IF_COMPLETE_ATTRIBUTE);
boolean allowStartIfCompleteValue = false;
if(StringUtils.hasText(allowStartIfComplete)) {
bd.getPropertyValues().addPropertyValue("allowStartIfComplete",
allowStartIfComplete);
allowStartIfCompleteValue = Boolean.valueOf(allowStartIfComplete);
}
new ListenerParser(JsrStepListenerFactoryBean.class, "listeners").parseListeners(element, parserContext, bd, stepName);
new PropertyParser(stepName, parserContext, BatchArtifactType.STEP, stepName).parseProperties(element);
// look at all nested elements
NodeList children = element.getChildNodes();
for (int i = 0; i < children.getLength(); i++) {
Node nd = children.item(i);
if (nd instanceof Element) {
Element nestedElement = (Element) nd;
String name = nestedElement.getLocalName();
if(name.equalsIgnoreCase(BATCHLET_ELEMENT)) {
new BatchletParser().parseBatchlet(nestedElement, bd, parserContext, stepName);
} else if(name.equals(CHUNK_ELEMENT)) {
new ChunkParser().parse(nestedElement, bd, parserContext, stepName);
} else if(name.equals(PARTITION_ELEMENT)) {
new PartitionParser(stepName, allowStartIfCompleteValue).parse(nestedElement, bd, parserContext, stepName);
}
}
}
return FlowParser.getNextElements(parserContext, stepName, stateBuilder.getBeanDefinition(), element);
}
}