@RequestMapping(
      method = RequestMethod.POST,
      produces = MimeTypeUtils.APPLICATION_JSON_VALUE,
      consumes = MimeTypeUtils.APPLICATION_JSON_VALUE)
  public String createResourceSet(@RequestBody String jsonString, Model m, Authentication auth) {
    ensureOAuthScope(auth, SystemScopeService.UMA_PROTECTION_SCOPE);

    ResourceSet rs = parseResourceSet(jsonString);

    if (rs == null) { // there was no resource set in the body
      logger.warn("Resource set registration missing body.");

      m.addAttribute("code", HttpStatus.BAD_REQUEST);
      m.addAttribute("error_description", "Resource request was missing body.");
      return JsonErrorView.VIEWNAME;
    }

    if (auth instanceof OAuth2Authentication) {
      // if it's an OAuth mediated call, it's on behalf of a client, so store that
      OAuth2Authentication o2a = (OAuth2Authentication) auth;
      rs.setClientId(o2a.getOAuth2Request().getClientId());
      rs.setOwner(auth.getName()); // the username is going to be in the auth object
    } else {
      // this one shouldn't be called if it's not OAuth
      m.addAttribute(HttpCodeView.CODE, HttpStatus.BAD_REQUEST);
      m.addAttribute(JsonErrorView.ERROR_MESSAGE, "This call must be made with an OAuth token");
      return JsonErrorView.VIEWNAME;
    }

    rs = validateScopes(rs);

    if (Strings.isNullOrEmpty(rs.getName()) // there was no name (required)
        || rs.getScopes() == null // there were no scopes (required)
    ) {

      logger.warn("Resource set registration missing one or more required fields.");

      m.addAttribute(HttpCodeView.CODE, HttpStatus.BAD_REQUEST);
      m.addAttribute(
          JsonErrorView.ERROR_MESSAGE, "Resource request was missing one or more required fields.");
      return JsonErrorView.VIEWNAME;
    }

    ResourceSet saved = resourceSetService.saveNew(rs);

    m.addAttribute(HttpCodeView.CODE, HttpStatus.CREATED);
    m.addAttribute(JsonEntityView.ENTITY, saved);
    m.addAttribute(
        ResourceSetEntityAbbreviatedView.LOCATION, config.getIssuer() + URL + "/" + saved.getId());

    return ResourceSetEntityAbbreviatedView.VIEWNAME;
  }