final String id = HttpUtils.removeSurroundingSlashes(request.getRequestURI());
final IFileInfo fileInfo = store.replaceFile(id, request.getContentType(), request.getIntParameter("cacheExpiresSec", -1));
ITransferResultHandler hdl = new ITransferResultHandler() {
public void onComplete() throws IOException {
IHttpResponse response = new HttpResponse(204);
exchange.send(response);
}