| /** |
| * 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.resource; |
| |
| import org.apache.hadoop.classification.InterfaceAudience.Private; |
| import org.apache.hadoop.classification.InterfaceStability.Evolving; |
| import org.apache.hadoop.util.StringUtils; |
| |
| @Private |
| @Evolving |
| public class ResourceWeights { |
| public static final ResourceWeights NEUTRAL = new ResourceWeights(1.0f); |
| |
| private float[] weights = new float[ResourceType.values().length]; |
| |
| public ResourceWeights(float memoryWeight, float cpuWeight) { |
| weights[ResourceType.MEMORY.ordinal()] = memoryWeight; |
| weights[ResourceType.CPU.ordinal()] = cpuWeight; |
| } |
| |
| public ResourceWeights(float weight) { |
| setWeight(weight); |
| } |
| |
| public ResourceWeights() { } |
| |
| public void setWeight(float weight) { |
| for (int i = 0; i < weights.length; i++) { |
| weights[i] = weight; |
| } |
| } |
| |
| public void setWeight(ResourceType resourceType, float weight) { |
| weights[resourceType.ordinal()] = weight; |
| } |
| |
| public float getWeight(ResourceType resourceType) { |
| return weights[resourceType.ordinal()]; |
| } |
| |
| public String toString() { |
| StringBuffer sb = new StringBuffer(); |
| sb.append("<"); |
| for (int i = 0; i < ResourceType.values().length; i++) { |
| if (i != 0) { |
| sb.append(", "); |
| } |
| ResourceType resourceType = ResourceType.values()[i]; |
| sb.append(StringUtils.toLowerCase(resourceType.name())); |
| sb.append(StringUtils.format(" weight=%.1f", getWeight(resourceType))); |
| } |
| sb.append(">"); |
| return sb.toString(); |
| } |
| } |