String serviceName = request.getParameter("contextServiceName");
BOInstance biUser = null;
if (serviceName != null && !serviceName.trim().equals("")) {
DOService findUserByUserNamePassword = DOService
.getService(serviceName);
List listUser = findUserByUserNamePassword.invokeSelect();
if (listUser != null && listUser.size() > 0) {
biUser = (BOInstance) listUser.get(0);
}
}