branch-2.0.4-alpha/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/dao/FairSchedulerInfo.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.ApplicationAttemptId;
import org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler;

public class FairSchedulerInfo {
  private FairScheduler scheduler;
  
  public FairSchedulerInfo(FairScheduler fs) {
    scheduler = fs;
  }
  
  public int getAppFairShare(ApplicationAttemptId appAttemptId) {
    return scheduler.getSchedulerApp(appAttemptId).
        getAppSchedulable().getFairShare().getMemory();
  }
  
  public FairSchedulerQueueInfo getRootQueueInfo() {
    return new FairSchedulerQueueInfo(scheduler.getQueueManager().
        getRootQueue(), scheduler);
  }
}