/**
* 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.JobID;
import org.apache.hadoop.mapred.TaskAttemptID;
import org.apache.hadoop.mapred.TaskID;
import org.apache.hadoop.mapreduce.TaskType;
import org.apache.hadoop.yarn.api.records.ApplicationId;
import org.apache.tez.dag.records.TezDAGID;
import org.apache.tez.dag.records.TezTaskAttemptID;
import org.apache.tez.dag.records.TezTaskID;
import org.apache.tez.dag.records.TezVertexID;
public class IDConverter {
// FIXME hardcoded assumption that one app is one dag
public static JobID toMRJobId(TezDAGID dagId) {
return new JobID(
Long.toString(dagId.getApplicationId().getClusterTimestamp()),
dagId.getApplicationId().getId());
}
public static TaskID toMRTaskId(TezTaskID taskid) {
return new TaskID(
toMRJobId(taskid.getVertexID().getDAGId()),
taskid.getVertexID().getId() == 0 ? TaskType.MAP : TaskType.REDUCE,
taskid.getId());
}
public static TaskAttemptID toMRTaskAttemptId(
TezTaskAttemptID taskAttemptId) {
return new TaskAttemptID(
toMRTaskId(taskAttemptId.getTaskID()),
taskAttemptId.getId());
}
// FIXME hardcoded assumption that one app is one dag
public static TezDAGID fromMRJobId(
org.apache.hadoop.mapreduce.JobID jobId) {
return new TezDAGID(ApplicationId.newInstance(
Long.valueOf(jobId.getJtIdentifier()), jobId.getId()), 1);
}
// FIXME hack alert converting objects with hard coded id
public static TezTaskID
fromMRTaskId(org.apache.hadoop.mapreduce.TaskID taskid) {
return new TezTaskID(
new TezVertexID(fromMRJobId(taskid.getJobID()),
(taskid.getTaskType() == TaskType.MAP ? 0 : 1)
),
taskid.getId());
}
public static TezTaskAttemptID fromMRTaskAttemptId(
org.apache.hadoop.mapreduce.TaskAttemptID taskAttemptId) {
return new TezTaskAttemptID(
fromMRTaskId(taskAttemptId.getTaskID()),
taskAttemptId.getId());
}
}