| /** |
| * 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.federation.policies.manager; |
| |
| import com.google.common.annotations.VisibleForTesting; |
| import org.apache.hadoop.yarn.server.federation.policies.amrmproxy.LocalityMulticastAMRMProxyPolicy; |
| import org.apache.hadoop.yarn.server.federation.policies.dao.WeightedPolicyInfo; |
| import org.apache.hadoop.yarn.server.federation.policies.exceptions.FederationPolicyInitializationException; |
| import org.apache.hadoop.yarn.server.federation.policies.router.WeightedRandomRouterPolicy; |
| import org.apache.hadoop.yarn.server.federation.store.records.SubClusterPolicyConfiguration; |
| |
| import java.nio.ByteBuffer; |
| |
| /** |
| * Policy that allows operator to configure "weights" for routing. This picks a |
| * {@link WeightedRandomRouterPolicy} for the router and a {@link |
| * LocalityMulticastAMRMProxyPolicy} for the amrmproxy as they are designed to |
| * work together. |
| */ |
| public class WeightedLocalityPolicyManager |
| extends AbstractPolicyManager { |
| |
| private WeightedPolicyInfo weightedPolicyInfo; |
| |
| public WeightedLocalityPolicyManager() { |
| //this structurally hard-codes two compatible policies for Router and |
| // AMRMProxy. |
| routerFederationPolicy = WeightedRandomRouterPolicy.class; |
| amrmProxyFederationPolicy = LocalityMulticastAMRMProxyPolicy.class; |
| weightedPolicyInfo = new WeightedPolicyInfo(); |
| } |
| |
| @Override |
| public SubClusterPolicyConfiguration serializeConf() |
| throws FederationPolicyInitializationException { |
| ByteBuffer buf = weightedPolicyInfo.toByteBuffer(); |
| return SubClusterPolicyConfiguration |
| .newInstance(getQueue(), this.getClass().getCanonicalName(), buf); |
| } |
| |
| @VisibleForTesting |
| public WeightedPolicyInfo getWeightedPolicyInfo() { |
| return weightedPolicyInfo; |
| } |
| |
| @VisibleForTesting |
| public void setWeightedPolicyInfo( |
| WeightedPolicyInfo weightedPolicyInfo) { |
| this.weightedPolicyInfo = weightedPolicyInfo; |
| } |
| |
| } |