@Override
  public @NotNull Map<FileType, Void> getIndexedFileData(int fileId) throws StorageException {
    int foundData = getIndexedFileTypeId(fileId);
    if (foundData == 0) {
      if (LOG.isDebugEnabled()) {
        LOG.debug("FileTypeId is 0 for fileId=" + fileId);
      }
      return Collections.emptyMap();
    }
    return Collections.singletonMap(getFileTypeById(foundData), null);
  }
@Override
  public @NotNull Map<FileType, Void> getIndexedFileData(int fileId)