public static String appendVersionSuffix(String apiVersion,String versionSuffix){
  return Strings.isNullOrEmpty(versionSuffix) ? apiVersion : apiVersion + versionSuffix;
}

public static String appendVersionSuffix ( String apiVersion , String versionSuffix ) { return Strings . isNullOrEmpty ( versionSuffix ) ? apiVersion : apiVersion + versionSuffix ; }
append version suffix , if defined , to the given apiversion .
