/**
* 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.tajo.master;
import org.apache.hadoop.yarn.event.EventHandler;
import org.apache.hadoop.yarn.service.AbstractService;
import org.apache.tajo.master.event.TaskRequestEvent;
import org.apache.tajo.master.event.TaskSchedulerEvent;
public abstract class AbstractTaskScheduler extends AbstractService implements EventHandler<TaskSchedulerEvent> {
protected int hostLocalAssigned;
protected int rackLocalAssigned;
protected int totalAssigned;
/**
* Construct the service.
*
* @param name service name
*/
public AbstractTaskScheduler(String name) {
super(name);
}
public int getHostLocalAssigned() {
return hostLocalAssigned;
}
public int getRackLocalAssigned() {
return rackLocalAssigned;
}
public int getTotalAssigned() {
return totalAssigned;
}
public abstract void handleTaskRequestEvent(TaskRequestEvent event);
public abstract int remainingScheduledObjectNum();
}