public static String getBackReferenceFileName(final Path dirPath) {
    return dirPath.getName().substring(BACK_REFERENCES_DIRECTORY_PREFIX.length());
  }
Get the referenced file name from the reference link directory path.
@param dirPath Link references directory path
@return Name of the file referenced
hbase-server/src/main/java/org/apache/hadoop/hbase/io/FileLink.java