/*
* 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 java.util.List;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.util.xml.DomUtils;
import org.springframework.yarn.configuration.EnvironmentFactoryBean;
import org.springframework.yarn.support.ParsingUtils;
import org.w3c.dom.Element;
/**
* Simple namespace parser for yarn:environment.
*
* @author Janne Valkealahti
*
*/
class EnvironmentParser extends AbstractPropertiesConfiguredBeanDefinitionParser {
public static final String DEFAULT_ID = "yarnEnvironment";
@Override
protected Class<?> getBeanClass(Element element) {
return EnvironmentFactoryBean.class;
}
@Override
protected void doParse(Element element, ParserContext parserContext, BeanDefinitionBuilder builder) {
super.doParse(element, parserContext, builder);
builder.addPropertyValue("includeLocalSystemEnv", element.getAttribute("include-local-system-env"));
YarnNamespaceUtils.setReferenceIfAttributeDefined(builder, element, "configuration");
List<Element> entries = DomUtils.getChildElementsByTagName(element, "classpath");
if(entries.size() == 1) {
Element entry = entries.get(0);
String textContent = entry.getTextContent();
String useDefaultYarnClasspath = entry.getAttribute("use-yarn-app-classpath");
String defaultYarnAppClasspath = entry.getAttribute("site-yarn-app-classpath");
String useDefaultMapreduceClasspath = entry.getAttribute("use-mapreduce-app-classpath");
String defaultMapreduceAppClasspath = entry.getAttribute("site-mapreduce-app-classpath");
String includeBaseDirectory = entry.getAttribute("include-base-directory");
String delimiter = entry.getAttribute("delimiter");
builder.addPropertyValue("useDefaultYarnClasspath", useDefaultYarnClasspath);
builder.addPropertyValue("defaultYarnAppClasspath", defaultYarnAppClasspath);
builder.addPropertyValue("useDefaultMapreduceClasspath", useDefaultMapreduceClasspath);
builder.addPropertyValue("defaultMapreduceAppClasspath", defaultMapreduceAppClasspath);
builder.addPropertyValue("includeBaseDirectory", includeBaseDirectory);
builder.addPropertyValue("delimiter", delimiter);
// nested entries will be added to classpath
builder.addPropertyValue("classpath", ParsingUtils.extractClasspath(textContent, delimiter));
} else if (entries.size() > 1) {
parserContext.getReaderContext().error("only one nested <classpath> element allowed under <environment>", element);
}
}
@Override
protected String defaultId(ParserContext context, Element element) {
return DEFAULT_ID;
}
}