code: public static String getName( String nodePrefix, String name, String defaultName, String... suffix )
      {
          if ( isBlank( name ) || name.equals( DEFAULT ) )
          {
              name = defaultName;
          }
          return name( name( nodePrefix, name ), suffix );
      }
docs: Get the metric fullname.
  @param name user specified name
  @param defaultName 'class name + method name', not null.