content: /*
   * The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
   * (the "License"). You may not use this work except in compliance with the License, which is
   * available at www.apache.org/licenses/LICENSE-2.0
   *
   * This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
   * either express or implied, as more fully set forth in the License.
   *
   * See the NOTICE file distributed with this work for information regarding copyright ownership.
   */
  
  package alluxio.master.job;
  
  import alluxio.job.JobRequest;
  import alluxio.job.LoadJobRequest;
  import alluxio.master.file.FileSystemMaster;
  import alluxio.proto.journal.Journal;
  import alluxio.scheduler.job.JobFactory;
  
  /**
   * Producer for {@link JobFactory}.
   */
  public class JobFactoryProducer {
    private JobFactoryProducer() {} // prevent instantiation
  
    /**
     * @param request the job request
     * @param fsMaster the file system master
     * @return the job factory
     */
    public static JobFactory create(JobRequest request, FileSystemMaster fsMaster) {
      if (request instanceof LoadJobRequest) {
        return new LoadJobFactory((LoadJobRequest) request, fsMaster);
      }
      throw new IllegalArgumentException("Unknown job type: " + request.getType());
    }
  
    /**
     * @param entry    the job journal entry
     * @param fsMaster the file system master
     * @return the job factory
     */
    public static JobFactory create(Journal.JournalEntry entry, FileSystemMaster fsMaster) {
      if (entry.hasLoadJob()) {
        return new JournalLoadJobFactory(entry.getLoadJob(), fsMaster);
      }
      else {
        throw new IllegalArgumentException("Unknown job type: " + entry);
      }
    }
  }
  