public static String parseFileSetFromURI(String uri){
  Matcher matcher=uriPattern.matcher(uri);
  if (matcher.matches()) {
    return matcher.group(1);
  }
  return null;
}

public static String parseFileSetFromURI ( String uri ) { Matcher matcher = uriPattern . matcher ( uri ) ; if ( matcher . matches ( ) ) { return matcher . group ( 1 ) ; } return null ; }
get file set name from a giving uri . e . g . giving ' / status / file_sets / image_scores ' , it returns ' image_scores '
