org.springframework.yarn.container.YarnContainerFactoryBean 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.container;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.beans.factory.InitializingBean;
/**
* Simple factory bean for {@link YarnContainer}s.
*
* @author Janne Valkealahti
*
*/
public class YarnContainerFactoryBean implements InitializingBean, FactoryBean {
/** Yarn container class */
private Class containerClass;
/** Yarn container reference */
private YarnContainer containerRef;
@Override
public YarnContainer getObject() throws Exception {
return containerRef;
}
@Override
public Class getObjectType() {
return YarnContainer.class;
}
@Override
public boolean isSingleton() {
return true;
}
@Override
public void afterPropertiesSet() throws Exception {
// 1) if we have a reference use that
// 2) instantiate a class if given
// 3) fall back to default container
if(containerRef == null) {
if (containerClass != null) {
containerRef = BeanUtils.instantiate(containerClass);
} else {
containerRef = BeanUtils.instantiate(DefaultYarnContainer.class);
}
}
}
/**
* Sets the container class.
*
* @param containerClass the new container class
*/
public void setContainerClass(Class containerClass) {
this.containerClass = containerClass;
}
/**
* Sets the container ref.
*
* @param containerRef the new container ref
*/
public void setContainerRef(YarnContainer containerRef) {
this.containerRef = containerRef;
}
}