HadoopTaskFinishedMessage.java

/*
 * 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.ignite.internal.processors.hadoop.taskexecutor.external;

import java.io.Externalizable;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import org.apache.ignite.internal.processors.hadoop.HadoopTaskInfo;
import org.apache.ignite.internal.processors.hadoop.message.HadoopMessage;
import org.apache.ignite.internal.processors.hadoop.taskexecutor.HadoopTaskStatus;
import org.apache.ignite.internal.util.typedef.internal.S;

/**
 * Task finished message. Sent when local task finishes execution.
 */
public class HadoopTaskFinishedMessage implements HadoopMessage {
    /** */
    private static final long serialVersionUID = 0L;

    /** Finished task info. */
    private HadoopTaskInfo taskInfo;

    /** Task finish status. */
    private HadoopTaskStatus status;

    /**
     * Constructor required by {@link Externalizable}.
     */
    public HadoopTaskFinishedMessage() {
        // No-op.
    }

    /**
     * @param taskInfo Finished task info.
     * @param status Task finish status.
     */
    public HadoopTaskFinishedMessage(HadoopTaskInfo taskInfo, HadoopTaskStatus status) {
        assert taskInfo != null;
        assert status != null;

        this.taskInfo = taskInfo;
        this.status = status;
    }

    /**
     * @return Finished task info.
     */
    public HadoopTaskInfo taskInfo() {
        return taskInfo;
    }

    /**
     * @return Task finish status.
     */
    public HadoopTaskStatus status() {
        return status;
    }

    /** {@inheritDoc} */
    @Override public String toString() {
        return S.toString(HadoopTaskFinishedMessage.class, this);
    }

    /** {@inheritDoc} */
    @Override public void writeExternal(ObjectOutput out) throws IOException {
        taskInfo.writeExternal(out);
        status.writeExternal(out);
    }

    /** {@inheritDoc} */
    @Override public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
        taskInfo = new HadoopTaskInfo();
        taskInfo.readExternal(in);

        status = new HadoopTaskStatus();
        status.readExternal(in);
    }
}