[SPARK-45542][CORE] Replace setSafeMode(HdfsConstants.SafeModeAction, boolean) with setSafeMode(SafeModeAction, boolean)

[LuciferYang]

What changes were proposed in this pull request?

The function FsHistoryProvider#isFsInSafeMode is using the deprecated API

https://github.com/apache/hadoop/blob/1be78238728da9266a4f88195058f08fd012bf9c/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/DistributedFileSystem.java#L1702-L1722

/**
   * Enter, leave or get safe mode.
   *
   * @param action
   *          One of SafeModeAction.ENTER, SafeModeAction.LEAVE and
   *          SafeModeAction.GET.
   * @param isChecked
   *          If true check only for Active NNs status, else check first NN's
   *          status.
   *
   * @see org.apache.hadoop.hdfs.protocol.ClientProtocol#setSafeMode(HdfsConstants.SafeModeAction,
   * boolean)
   *
   * @deprecated please instead use
   *               {@link DistributedFileSystem#setSafeMode(SafeModeAction, boolean)}.
   */
  @Deprecated
  public boolean setSafeMode(HdfsConstants.SafeModeAction action,
      boolean isChecked) throws IOException {
    return dfs.setSafeMode(action, isChecked);
  }

This pr change to use

https://github.com/apache/hadoop/blob/1be78238728da9266a4f88195058f08fd012bf9c/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/DistributedFileSystem.java#L1646-L1661

 /**
   * Enter, leave or get safe mode.
   *
   * @param action
   *          One of SafeModeAction.ENTER, SafeModeAction.LEAVE and
   *          SafeModeAction.GET.
   * @param isChecked
   *          If true check only for Active NNs status, else check first NN's
   *          status.
   */
  @Override
  @SuppressWarnings("deprecation")
  public boolean setSafeMode(SafeModeAction action, boolean isChecked)
      throws IOException {
    return this.setSafeMode(convertToClientProtocolSafeModeAction(action), isChecked);
  }

instead of it.

The conversion relationship from HdfsConstants.SafeModeAction to SafeModeAction refers to convertToClientProtocolSafeModeAction method.

https://github.com/apache/hadoop/blob/1be78238728da9266a4f88195058f08fd012bf9c/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/DistributedFileSystem.java#L1663-L1686

/**
   * Translating the {@link SafeModeAction} into {@link HdfsConstants.SafeModeAction}
   * that is used by {@link DFSClient#setSafeMode(HdfsConstants.SafeModeAction, boolean)}.
   *
   * @param action any supported action listed in {@link SafeModeAction}.
   * @return the converted {@link HdfsConstants.SafeModeAction}.
   * @throws UnsupportedOperationException if the provided {@link SafeModeAction} cannot be
   *           translated.
   */
  private static HdfsConstants.SafeModeAction convertToClientProtocolSafeModeAction(
      SafeModeAction action) {
    switch (action) {
    case ENTER:
      return HdfsConstants.SafeModeAction.SAFEMODE_ENTER;
    case LEAVE:
      return HdfsConstants.SafeModeAction.SAFEMODE_LEAVE;
    case FORCE_EXIT:
      return HdfsConstants.SafeModeAction.SAFEMODE_FORCE_EXIT;
    case GET:
      return HdfsConstants.SafeModeAction.SAFEMODE_GET;
    default:
      throw new UnsupportedOperationException("Unsupported safe mode action " + action);
    }
  }

Why are the changes needed?

Clean up deprecated API usage

Does this PR introduce any user-facing change?

No

How was this patch tested?

Pass GitHub Actions

Was this patch authored or co-authored using generative AI tooling?

No

[beliefer]

LGTM.

[LuciferYang]

cc @dongjoon-hyun Could you please take a look If you have time. Thanks ~

[dongjoon-hyun]

Sure, @LuciferYang .

[dongjoon-hyun]

+1, LGTM.

[dongjoon-hyun]

Merged to master for Apache Spark 4.0.0.

[LuciferYang]

Thanks @dongjoon-hyun and @beliefer ~