org.apache.tez.mapreduce.hadoop.TezTypeConverters.java Source code

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Here is the source code for org.apache.tez.mapreduce.hadoop.TezTypeConverters.java

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/**
 * 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.tez.mapreduce.hadoop;

import org.apache.hadoop.mapred.TaskAttemptID;
import org.apache.hadoop.mapreduce.Counter;
import org.apache.hadoop.mapreduce.Counters;
import org.apache.hadoop.mapreduce.JobID;
import org.apache.hadoop.mapreduce.TypeConverter;
import org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId;
import org.apache.tez.common.counters.CounterGroup;
import org.apache.tez.common.counters.TezCounter;
import org.apache.tez.common.counters.TezCounters;
import org.apache.tez.dag.records.TezDAGID;
import org.apache.tez.dag.records.TezTaskAttemptID;

public class TezTypeConverters {

    // TODO Remove unused methods

    // Tez objects will be imported. Others will use the fully qualified name when
    // required.
    // All public methods named toYarn / toTez / toMapReduce

    public static org.apache.hadoop.mapreduce.JobID toJobID(TezDAGID id) {
        return new JobID(String.valueOf(id.getApplicationId().getClusterTimestamp()), id.getId());

    }

    public static TaskAttemptId toYarn(TezTaskAttemptID taskAttemptId) {
        TaskAttemptID mrTaskAttemptId = IDConverter.toMRTaskAttemptId(taskAttemptId);
        TaskAttemptId mrv2TaskAttemptId = TypeConverter.toYarn(mrTaskAttemptId);
        return mrv2TaskAttemptId;
    }

    public static TezTaskAttemptID toTez(TaskAttemptId taskAttemptId) {
        TaskAttemptID mrTaskAttemptId = TypeConverter.fromYarn(taskAttemptId);
        TezTaskAttemptID tezTaskAttemptId = IDConverter.fromMRTaskAttemptId(mrTaskAttemptId);
        return tezTaskAttemptId;
    }

    public static Counters fromTez(TezCounters tezCounters) {
        if (tezCounters == null) {
            return null;
        }
        Counters counters = new Counters();
        for (CounterGroup xGrp : tezCounters) {
            counters.addGroup(xGrp.getName(), xGrp.getDisplayName());
            for (TezCounter xCounter : xGrp) {
                Counter counter = counters.findCounter(xGrp.getName(), xCounter.getName());
                counter.setValue(xCounter.getValue());

            }
        }
        return counters;
    }
}