Java tutorial
/* * 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.samza.job.yarn.util; import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.yarn.api.protocolrecords.AllocateResponse; import org.apache.hadoop.yarn.api.protocolrecords.RegisterApplicationMasterResponse; import org.apache.hadoop.yarn.api.records.ContainerId; import org.apache.hadoop.yarn.api.records.FinalApplicationStatus; import org.apache.hadoop.yarn.client.api.AMRMClient.ContainerRequest; import org.apache.hadoop.yarn.client.api.impl.AMRMClientImpl; import org.apache.hadoop.yarn.exceptions.YarnException; import java.io.IOException; import java.util.ArrayList; import java.util.List; import java.util.Set; public class TestAMRMClientImpl extends AMRMClientImpl<ContainerRequest> { private final AllocateResponse response; public List<ContainerRequest> requests = new ArrayList<ContainerRequest>(); public TestAMRMClientImpl(AllocateResponse response) { this.response = response; } public Set<ContainerId> getRelease() { return release; } public void resetRelease() { release.clear(); } @Override public RegisterApplicationMasterResponse registerApplicationMaster(String appHostName, int appHostPort, String appTrackingUrl) { return null; } @Override public AllocateResponse allocate(float progressIndicator) throws YarnException, IOException { response.getAMCommand(); return response; } @Override public void unregisterApplicationMaster(FinalApplicationStatus appStatus, String appMessage, String appTrackingUrl) throws YarnException, IOException { } @Override public synchronized void addContainerRequest(ContainerRequest req) { requests.add(req); } @Override public synchronized void removeContainerRequest(ContainerRequest req) { } @Override public synchronized int getClusterNodeCount() { return 1; } @Override protected void serviceInit(Configuration conf) throws Exception { } @Override protected void serviceStart() throws Exception { } @Override protected void serviceStop() throws Exception { } }