if(request.getAttribute("t")!=null) {
chain.doFilter(req, res);
return;
}
HttpServletResponse response = (HttpServletResponse) res;
RequestInfo info = new RequestInfo(
req.getServletContext(), chain, new VRaptorRequest(request),
new VRaptorResponse(response));
Localization localization = new JstlLocalization(info);
request.setAttribute("t", new Translator(localization));
request.setAttribute("l", new LocalizedFormatter(localization));