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.journal.ufs;
  
  import alluxio.master.journal.AbstractJournalProgressLogger;
  
  import java.util.OptionalLong;
  import java.util.function.Supplier;
  
  /**
   * Journal replay logger for the {@link UfsJournal}.
   */
  public class UfsJournalProgressLogger extends AbstractJournalProgressLogger {
  
    private final UfsJournal mJournal;
    private final Supplier<Long> mCommitSupplier;
  
    /**
     * Creates a new instance of the journal replay progress logger.
     *
     * @param journal the journal being replayed
     * @param endCommitIdx the final commit index (sequence number) in the journal
     * @param lastIndexSupplier supplier that gives the last applied commit (sequence number)
     */
    public UfsJournalProgressLogger(UfsJournal journal, OptionalLong endCommitIdx,
        Supplier<Long> lastIndexSupplier) {
      super(endCommitIdx);
      mJournal = journal;
      mCommitSupplier = lastIndexSupplier;
    }
  
    @Override
    public long getLastAppliedIndex() {
      return mCommitSupplier.get();
    }
  
    @Override
    public String getJournalName() {
      return mJournal.toString();
    }
  }
  