code: public static String getCaptureLevel() {
  		final HttpServletRequest request = getRequest();
  		final CaptureContext capture = CaptureContext.getCaptureContext(request);
  		if(capture == null) return null;
  		return CurrentCaptureLevel.getCaptureLevel(request).name().toLowerCase(Locale.ROOT);
  	}
docs: Gets the current capture level or <code>null</code> if not currently
  capturing
  
  @see  CaptureLevel