| /** |
| * 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 java.util.ArrayList; |
| |
| import javax.xml.bind.annotation.XmlAccessType; |
| import javax.xml.bind.annotation.XmlAccessorType; |
| import javax.xml.bind.annotation.XmlRootElement; |
| import javax.xml.bind.annotation.XmlSeeAlso; |
| import javax.xml.bind.annotation.XmlTransient; |
| |
| import org.apache.hadoop.yarn.api.records.QueueState; |
| import org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CSQueue; |
| |
| @XmlRootElement |
| @XmlAccessorType(XmlAccessType.FIELD) |
| @XmlSeeAlso({CapacitySchedulerLeafQueueInfo.class}) |
| public class CapacitySchedulerQueueInfo { |
| |
| @XmlTransient |
| static final float EPSILON = 1e-8f; |
| |
| @XmlTransient |
| protected String queuePath; |
| |
| protected float capacity; |
| protected float usedCapacity; |
| protected float maxCapacity; |
| protected float absoluteCapacity; |
| protected float absoluteMaxCapacity; |
| protected float utilization; |
| protected int numApplications; |
| protected String usedResources; |
| protected String queueName; |
| protected QueueState state; |
| protected ArrayList<CapacitySchedulerQueueInfo> subQueues; |
| |
| CapacitySchedulerQueueInfo() { |
| }; |
| |
| CapacitySchedulerQueueInfo(CSQueue q) { |
| queuePath = q.getQueuePath(); |
| capacity = q.getCapacity() * 100; |
| usedCapacity = q.getUsedCapacity() * 100; |
| |
| maxCapacity = q.getMaximumCapacity(); |
| if (maxCapacity < EPSILON || maxCapacity > 1f) |
| maxCapacity = 1f; |
| maxCapacity *= 100; |
| |
| absoluteCapacity = cap(q.getAbsoluteCapacity(), 0f, 1f) * 100; |
| absoluteMaxCapacity = cap(q.getAbsoluteMaximumCapacity(), 0f, 1f) * 100; |
| utilization = q.getUtilization() * 100; |
| numApplications = q.getNumApplications(); |
| usedResources = q.getUsedResources().toString(); |
| queueName = q.getQueueName(); |
| state = q.getState(); |
| } |
| |
| public float getCapacity() { |
| return this.capacity; |
| } |
| |
| public float getUsedCapacity() { |
| return this.usedCapacity; |
| } |
| |
| public float getMaxCapacity() { |
| return this.maxCapacity; |
| } |
| |
| public float getAbsoluteCapacity() { |
| return absoluteCapacity; |
| } |
| |
| public float getAbsoluteMaxCapacity() { |
| return absoluteMaxCapacity; |
| } |
| |
| public float getUtilization() { |
| return utilization; |
| } |
| |
| public int getNumApplications() { |
| return numApplications; |
| } |
| |
| public String getUsedResources() { |
| return usedResources; |
| } |
| |
| public String getQueueName() { |
| return this.queueName; |
| } |
| |
| public String getQueueState() { |
| return this.state.toString(); |
| } |
| |
| public String getQueuePath() { |
| return this.queuePath; |
| } |
| |
| public ArrayList<CapacitySchedulerQueueInfo> getSubQueues() { |
| return this.subQueues; |
| } |
| |
| /** |
| * Limit a value to a specified range. |
| * @param val the value to be capped |
| * @param low the lower bound of the range (inclusive) |
| * @param hi the upper bound of the range (inclusive) |
| * @return the capped value |
| */ |
| static float cap(float val, float low, float hi) { |
| return Math.min(Math.max(val, low), hi); |
| } |
| } |