org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerNodeReport.java Source code

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Here is the source code for org.apache.hadoop.yarn.server.resourcemanager.scheduler.SchedulerNodeReport.java

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/**
 * 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.scheduler;

import org.apache.hadoop.classification.InterfaceAudience.Private;
import org.apache.hadoop.classification.InterfaceStability.Stable;
import org.apache.hadoop.yarn.api.records.Resource;

/**
 * Node usage report.
 */
@Private
@Stable
public class SchedulerNodeReport {
    private final Resource used;
    private final Resource avail;
    private final int num;

    public SchedulerNodeReport(SchedulerNode node) {
        this.used = node.getAllocatedResource();
        this.avail = node.getUnallocatedResource();
        this.num = node.getNumContainers();
    }

    /**
     * @return the amount of resources currently used by the node.
     */
    public Resource getUsedResource() {
        return used;
    }

    /**
     * @return the amount of resources currently available on the node
     */
    public Resource getAvailableResource() {
        return avail;
    }

    /**
     * @return the number of containers currently running on this node.
     */
    public int getNumContainers() {
        return num;
    }
}