com.hazelcast.mapreduce.impl.notification.ReducingFinishedNotification Maven / Gradle / Ivy

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/*
 * Copyright (c) 2008-2016, 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.notification;

import com.hazelcast.mapreduce.impl.MapReduceDataSerializerHook;
import com.hazelcast.nio.Address;
import com.hazelcast.nio.ObjectDataInput;
import com.hazelcast.nio.ObjectDataOutput;

import java.io.IOException;

/**
 * This notification class is used to signal the {@link com.hazelcast.mapreduce.impl.task.JobSupervisor}
 * owner node that a reducer has finished the reducing step for the defined partitionId.
 */
public class ReducingFinishedNotification
        extends MemberAwareMapReduceNotification {

    private int partitionId;

    public ReducingFinishedNotification() {
    }

    public ReducingFinishedNotification(Address address, String name, String jobId, int partitionId) {
        super(address, name, jobId);
        this.partitionId = partitionId;
    }

    public int getPartitionId() {
        return partitionId;
    }

    @Override
    public void writeData(ObjectDataOutput out)
            throws IOException {
        super.writeData(out);
        out.writeInt(partitionId);
    }

    @Override
    public void readData(ObjectDataInput in)
            throws IOException {
        super.readData(in);
        partitionId = in.readInt();
    }

    @Override
    public int getFactoryId() {
        return MapReduceDataSerializerHook.F_ID;
    }

    @Override
    public int getId() {
        return MapReduceDataSerializerHook.REDUCING_FINISHED_MESSAGE;
    }

    @Override
    public String toString() {
        return "ReducingFinishedNotification{" + "partitionId=" + partitionId + '}';
    }

}