Package org.apache.hive.hcatalog.templeton

Source Code of org.apache.hive.hcatalog.templeton.ListDelegator

/**
* 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.hive.hcatalog.templeton;

import java.io.IOException;
import java.util.List;
import java.util.ArrayList;

import org.apache.hadoop.hive.shims.HadoopShims.WebHCatJTShim;
import org.apache.hadoop.hive.shims.ShimLoader;
import org.apache.hadoop.mapred.JobStatus;
import org.apache.hadoop.security.UserGroupInformation;
import org.apache.hive.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, boolean showall)
    throws NotAuthorizedException, BadParam, IOException, InterruptedException {

    UserGroupInformation ugi = UgiFactory.getUgi(user);
    WebHCatJTShim tracker = null;
    try {
      tracker = ShimLoader.getHadoopShims().getWebHCatShim(appConf, ugi);

      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 (showall || 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();
    }
  }
}
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