Worker worker = type.getWorker().newInstance();
Script script = new Script(getScriptName(req));
script.setArgs(getArgs(req));
script.setSource(getCommand(req));
worker.work(script);
resp.setStatus(HttpServletResponse.SC_OK);
resp.setContentType("text/xml");
resp.setHeader("Cache-Control", "no-cache");
resp.getWriter().print(script);