| /** |
| * 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.router.clientrm; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.concurrent.ConcurrentHashMap; |
| |
| import org.apache.hadoop.yarn.api.ApplicationClientProtocol; |
| import org.apache.hadoop.yarn.exceptions.YarnException; |
| import org.apache.hadoop.yarn.server.MockResourceManagerFacade; |
| import org.apache.hadoop.yarn.server.federation.store.records.SubClusterId; |
| |
| /** |
| * Extends the FederationClientInterceptor and overrides methods to provide a |
| * testable implementation of FederationClientInterceptor. |
| */ |
| public class TestableFederationClientInterceptor |
| extends FederationClientInterceptor { |
| |
| private ConcurrentHashMap<SubClusterId, MockResourceManagerFacade> mockRMs = |
| new ConcurrentHashMap<>(); |
| |
| private List<SubClusterId> badSubCluster = new ArrayList<SubClusterId>(); |
| |
| @Override |
| protected ApplicationClientProtocol getClientRMProxyForSubCluster( |
| SubClusterId subClusterId) throws YarnException { |
| |
| MockResourceManagerFacade mockRM = null; |
| synchronized (this) { |
| if (mockRMs.containsKey(subClusterId)) { |
| mockRM = mockRMs.get(subClusterId); |
| } else { |
| mockRM = new MockResourceManagerFacade(super.getConf(), 0, |
| Integer.parseInt(subClusterId.getId()), |
| !badSubCluster.contains(subClusterId)); |
| mockRMs.put(subClusterId, mockRM); |
| |
| } |
| return mockRM; |
| } |
| } |
| |
| /** |
| * For testing purpose, some subclusters has to be down to simulate particular |
| * scenarios as RM Failover, network issues. For this reason we keep track of |
| * these bad subclusters. This method make the subcluster unusable. |
| * |
| * @param badSC the subcluster to make unusable |
| */ |
| protected void registerBadSubCluster(SubClusterId badSC) { |
| badSubCluster.add(badSC); |
| if (mockRMs.contains(badSC)) { |
| mockRMs.get(badSC).setRunningMode(false); |
| } |
| } |
| |
| } |