@Override
public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws Exception {
Client client = CH.getOptional(getDao(), Client.class, request.getParameter("client"));
Collaborator collab = CH.getOptional(getDao(), Collaborator.class, request.getParameter("collaborator"));
WorkType type = CH.getOptional(getDao(), WorkType.class, request.getParameter("type"));
Lpu lpu = CH.getOptional(getDao(), Lpu.class, request.getParameter("lpu"));
if (collab == null) {
return IncomingParamsValidator.redirectTo("/operator/collaborator.htm", client, type, lpu, collab);
}
if ((lpu == null) && (type == null)) {