org.springframework.yarn.config.ContainerParser Maven / Gradle / Ivy
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/*
* Copyright 2013 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
*
* 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.springframework.yarn.config;
import org.springframework.beans.factory.BeanDefinitionStoreException;
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.springframework.util.xml.DomUtils;
import org.springframework.yarn.YarnSystemConstants;
import org.springframework.yarn.container.YarnContainerFactoryBean;
import org.w3c.dom.Element;
/**
* Simple namespace parser for yarn:container.
*
* @author Janne Valkealahti
*
*/
public class ContainerParser extends AbstractSingleBeanDefinitionParser {
@Override
protected Class getBeanClass(Element element) {
return YarnContainerFactoryBean.class;
}
@Override
protected void doParse(Element element, ParserContext parserContext, BeanDefinitionBuilder builder) {
YarnNamespaceUtils.setValueIfAttributeDefined(builder, element, "container-class");
YarnNamespaceUtils.setReferenceIfAttributeDefined(builder, element, "container-ref");
for (Element child : DomUtils.getChildElements(element)) {
builder.addPropertyValue("containerRef",
parserContext.getDelegate().parseBeanDefinitionElement(child,
builder.getRawBeanDefinition()));
}
}
@Override
protected String resolveId(Element element, AbstractBeanDefinition definition, ParserContext parserContext)
throws BeanDefinitionStoreException {
String name = super.resolveId(element, definition, parserContext);
if (!StringUtils.hasText(name)) {
name = YarnSystemConstants.DEFAULT_ID_CONTAINER;
}
return name;
}
}