code: protected static String makeComponentPrefix(String tokenName, String className) {
          String simpleClassName = className;
          if (null != className) {
              int lastDotIdx = className.lastIndexOf(".");
              if (lastDotIdx > -1) {
                  simpleClassName = className.substring(lastDotIdx + 1, className.length());
              }
          }
          return tokenName + "." + simpleClassName + ".";
      }
docs: Creates a prefix for component to search for its properties in properties.
  
  @param tokenName a component configuration key
  @param className a component class name
  @return prefix