/*
* 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 org.apache.hadoop.hive.llap.tezplugins;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.mapred.JobConf;
import org.apache.tez.dag.records.TezTaskAttemptID;
import org.apache.tez.mapreduce.hadoop.MRInputHelpers;
import org.apache.tez.mapreduce.input.MRInput;
import org.apache.tez.mapreduce.input.MRInputLegacy;
import org.apache.tez.mapreduce.input.MultiMRInput;
@InterfaceAudience.Private
public class LlapTezUtils {
public static boolean isSourceOfInterest(String inputClassName) {
// MRInput is not of interest since it'll always be ready.
return !(inputClassName.equals(MRInputLegacy.class.getName()) || inputClassName.equals(
MultiMRInput.class.getName()) || inputClassName.equals(MRInput.class.getName()));
}
public static String getDagId(final JobConf job) {
return job.get(MRInput.TEZ_MAPREDUCE_DAG_ID);
}
public static String getFragmentId(final JobConf job) {
String taskAttemptId = job.get(MRInput.TEZ_MAPREDUCE_TASK_ATTEMPT_ID);
if (taskAttemptId != null) {
return stripAttemptPrefix(taskAttemptId);
}
return null;
}
public static String stripAttemptPrefix(final String s) {
if (s.startsWith(TezTaskAttemptID.ATTEMPT)) {
return s.substring(TezTaskAttemptID.ATTEMPT.length() + 1);
}
return s;
}
}