/**
* 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.hcatalog.templeton;
import java.io.IOException;
import java.util.List;
import java.util.ArrayList;
import org.apache.hadoop.mapred.JobStatus;
import org.apache.hadoop.mapred.JobTracker;
import org.apache.hadoop.mapred.TempletonJobTracker;
import org.apache.hadoop.security.UserGroupInformation;
import org.apache.hcatalog.templeton.tool.JobState;
/**
* List jobs owned by a user.
*/
public class ListDelegator extends TempletonDelegator {
public ListDelegator(AppConfig appConf) {
super(appConf);
}
public List<String> run(String user)
throws NotAuthorizedException, BadParam, IOException {
UserGroupInformation ugi = UserGroupInformation.createRemoteUser(user);
TempletonJobTracker tracker = null;
try {
tracker = new TempletonJobTracker(ugi,
JobTracker.getAddress(appConf),
appConf);
ArrayList<String> ids = new ArrayList<String>();
JobStatus[] jobs = tracker.getAllJobs();
if (jobs != null) {
for (JobStatus job : jobs) {
JobState state = null;
try {
String id = job.getJobID().toString();
state = new JobState(id, Main.getAppConfigInstance());
if (user.equals(state.getUser()))
ids.add(id);
} finally {
if (state != null) {
state.close();
}
}
}
}
return ids;
} catch (IllegalStateException e) {
throw new BadParam(e.getMessage());
} finally {
if (tracker != null)
tracker.close();
}
}
}