| /** |
| * 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.mapred; |
| |
| import java.util.List; |
| import java.util.ArrayList; |
| |
| import junit.framework.Assert; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| |
| // |
| // collection of heartbeat() parameters whose correctness we care about |
| // and the response we give if they are correct |
| // |
| public class HeartbeatHelper { |
| public TaskTrackerStatus status = |
| new TaskTrackerStatus("dummytracker", "dummyhost"); |
| public boolean acceptNewTasks = true; |
| public List<TaskTrackerAction> actions = new ArrayList<TaskTrackerAction>(); |
| |
| static final Log LOG = LogFactory.getLog(HeartbeatHelper.class); |
| |
| public void addTaskTrackerAction(TaskTrackerAction action) { |
| actions.add(action); |
| } |
| |
| // adds an expected TaskStatus report |
| public void addTaskReport(TaskStatus report) { |
| // there is no setTaskReports() in TaskTrackerStatus, so we need to |
| // create a new status object with a copy of all the other fields |
| String trackerName = status.getTrackerName(); |
| String host = status.getHost(); |
| int httpPort = status.getHttpPort(); |
| List<TaskStatus> taskReports = status.getTaskReports(); |
| int failures = status.getFailures(); |
| int maxMapTasks = status.getMaxMapSlots(); |
| int maxReduceTasks = status.getMaxReduceSlots(); |
| |
| taskReports.add(report); |
| status = new TaskTrackerStatus(trackerName, host, httpPort, taskReports, |
| failures, maxMapTasks, maxReduceTasks); |
| } |
| |
| public TaskTrackerAction[] getTaskTrackerActions() { |
| return actions.toArray(new TaskTrackerAction[0]); |
| } |
| |
| // checks most incoming parameters we care about |
| public void checkHeartbeatParameters(TaskTrackerStatus otherStatus, |
| boolean otherAcceptNewTasks) { |
| Assert.assertEquals("Mismatch in acceptNewTask", |
| this.acceptNewTasks, otherAcceptNewTasks); |
| |
| List<TaskStatus> taskReports = this.status.getTaskReports(); |
| List<TaskStatus> otherTaskReports = otherStatus.getTaskReports(); |
| |
| Assert.assertEquals("Mismatch in number of reported tasks", |
| taskReports.size(), otherTaskReports.size()); |
| for(TaskStatus report : taskReports) { |
| boolean found = false; |
| for(TaskStatus otherReport : otherTaskReports) { |
| if(report.getTaskID() == otherReport.getTaskID()) { |
| Assert.assertEquals("Map/reduce task mismatch", |
| report.getIsMap(), otherReport.getIsMap()); |
| Assert.assertEquals("Mismatch in run state", |
| report.getRunState(), otherReport.getRunState()); |
| Assert.assertEquals("Mismatch in run phase", |
| report.getPhase(), otherReport.getPhase()); |
| found = true; |
| break; |
| } |
| } |
| Assert.assertTrue("Task status report not found, taskID=" + |
| report.getTaskID(), found); |
| } |
| } |
| } |