/*
* Copyright (c) 2008-2013, Hazelcast, Inc. All Rights Reserved.
*
* Licensed 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 com.hazelcast.mapreduce.impl.operation;
import com.hazelcast.mapreduce.impl.MapReduceDataSerializerHook;
import com.hazelcast.mapreduce.impl.MapReduceService;
import com.hazelcast.mapreduce.impl.task.JobSupervisor;
import com.hazelcast.nio.Address;
import com.hazelcast.nio.ObjectDataInput;
import com.hazelcast.nio.ObjectDataOutput;
import java.io.IOException;
/**
* This operation is fired by the jobs owner node to remotely cancel the defined jobId on all nodes.
*/
public class CancelJobSupervisorOperation
extends ProcessingOperation {
private Address jobOwner;
public CancelJobSupervisorOperation() {
}
public CancelJobSupervisorOperation(String name, String jobId) {
super(name, jobId);
}
@Override
public Object getResponse() {
return Boolean.TRUE;
}
@Override
public void run()
throws Exception {
MapReduceService mapReduceService = getService();
mapReduceService.registerJobSupervisorCancellation(getName(), getJobId(), jobOwner);
JobSupervisor supervisor = mapReduceService.getJobSupervisor(getName(), getJobId());
if (supervisor != null) {
supervisor.cancel();
}
}
@Override
protected void writeInternal(ObjectDataOutput out)
throws IOException {
super.writeInternal(out);
out.writeObject(jobOwner);
}
@Override
protected void readInternal(ObjectDataInput in)
throws IOException {
super.readInternal(in);
jobOwner = in.readObject();
}
@Override
public int getFactoryId() {
return MapReduceDataSerializerHook.F_ID;
}
@Override
public int getId() {
return MapReduceDataSerializerHook.CANCEL_JOB_SUPERVISOR_OPERATION;
}
}