final NHttpResponseTrigger trigger,
final HttpContext context) throws HttpException, IOException {
String s = request.getRequestLine().getUri();
int idx = s.indexOf('x');
if (idx == -1) {
throw new HttpException("Unexpected request-URI format");
}
String pattern = s.substring(0, idx);
int count = Integer.parseInt(s.substring(idx + 1, s.length()));
StringBuilder buffer = new StringBuilder();