private Pair<String, RequestType> parseRequestType(HttpServletRequest req) {
   String path = req.getPathInfo();
   path = path == null ? "" : path.substring(1); // Take off the leading '/'
   RequestType requestType = RequestType.HANDLE_STATIC;
   for (RequestType rt : RequestType.values()) {
     if (rt.matches(path)) {
       requestType = rt;
       break;
     }
   }
   return Pair.of(path, requestType);
 }