Validators v = new Validators();
v.add("arg1", v.required(), v.integer());
v.add("arg2", v.required(), v.integer());
if (v.isError()) {
map.put("message", v.getErrorMap());
return new JsonResolution(map);
}
map.put("result", context.intParam("arg1") + context.intParam("arg2"));
return new JsonResolution(map);
}