/**
* 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;
/**
* This class only exists to pass the current simulation time to the
* JobTracker in the heartbeat() call.
*/
class SimulatorTaskTrackerStatus extends TaskTrackerStatus {
/**
* The virtual, simulation time, when the hearbeat() call transmitting
* this TaskTrackerSatus occured.
*/
private final long currentSimulationTime;
/**
* Constructs a SimulatorTaskTrackerStatus object. All parameters are
* the same as in {@link TaskTrackerStatus}. The only extra is
* @param currentSimulationTime the current time in the simulation when the
* heartbeat() call transmitting this
* TaskTrackerStatus occured.
*/
public SimulatorTaskTrackerStatus(String trackerName, String host,
int httpPort, List<TaskStatus> taskReports,
int failures, int maxMapTasks,
int maxReduceTasks,
long currentSimulationTime) {
super(trackerName, host, httpPort, taskReports,
failures, maxMapTasks, maxReduceTasks);
this.currentSimulationTime = currentSimulationTime;
}
/**
* Returns the current time in the simulation.
*/
public long getCurrentSimulationTime() {
return currentSimulationTime;
}
}