hadoop PartitionInfo 源码

  • 2022-10-20
  • 浏览 (232)

haddop PartitionInfo 代码

文件路径:/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/dao/PartitionInfo.java

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.hadoop.yarn.server.resourcemanager.webapp.dao;

import org.apache.hadoop.yarn.api.records.Resource;
import org.apache.hadoop.yarn.util.resource.Resources;

import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;

/**
 * XML element uses to represent partitionInfo.
 */
@XmlRootElement(name = "partitionInfo")
@XmlAccessorType(XmlAccessType.FIELD)
public class PartitionInfo {

  @XmlElement(name = "resourceAvailable")
  private ResourceInfo resourceAvailable;

  public PartitionInfo() {
  }

  public PartitionInfo(ResourceInfo resourceAvailable) {
    this.resourceAvailable = resourceAvailable;
  }

  public ResourceInfo getResourceAvailable() {
    return resourceAvailable;
  }

  /**
   * This method will generate a new PartitionInfo object based on two PartitionInfo objects.
   * The combination process is mainly based on the Resources.add method.
   *
   * @param left left PartitionInfo Object.
   * @param right right PartitionInfo Object.
   * @return new PartitionInfo Object.
   */
  public static PartitionInfo addTo(PartitionInfo left, PartitionInfo right) {
    Resource leftResource = Resource.newInstance(0, 0);
    if (left != null && left.getResourceAvailable() != null) {
      ResourceInfo leftResourceInfo = left.getResourceAvailable();
      leftResource = leftResourceInfo.getResource();
    }

    Resource rightResource = Resource.newInstance(0, 0);
    if (right != null && right.getResourceAvailable() != null) {
      ResourceInfo rightResourceInfo = right.getResourceAvailable();
      rightResource = rightResourceInfo.getResource();
    }

    Resource resource = Resources.addTo(leftResource, rightResource);
    return new PartitionInfo(new ResourceInfo(resource));
  }
}

相关信息

hadoop 源码目录

相关文章

hadoop ActivitiesInfo 源码

hadoop ActivityNodeInfo 源码

hadoop AllocationTagInfo 源码

hadoop AllocationTagsInfo 源码

hadoop AppActivitiesInfo 源码

hadoop AppAllocationInfo 源码

hadoop AppAttemptInfo 源码

hadoop AppAttemptsInfo 源码

hadoop AppInfo 源码

hadoop AppPriority 源码

0  赞