Using an exposed domain model - POJOs in Action: Developing Enterprise Applications with Lightweight Frameworks - page 307

ServletContext context =
servletConfig.getServletContext();
ApplicationContext appContext =
WebApplicationContextUtils
.getWebApplicationContext(context);

B Creates
PlaceOrderService

service = (PlaceOrderService) appContext.getBean(
"PlaceOrderService",
PlaceOrderService.class);
bbbbbb ...
}

protected void service(
HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {

C Validates
parameters

if (!validateParameters(request,
response))
return;

Address deliveryAddress = makeDeliveryAddress(request);
Date deliveryTime = makeDeliveryTime(request);

HttpSession session =
request.getSession();
String pendingOrderId =
(String) session.
bbbbbbbbbb b ➥ getAttribute("pendingOrderId");

D Gets pending
order ID

PlaceOrderServiceResult result =
service.updateDeliveryInfo(
pendingOrderId,
deliveryAddress,
deliveryTime);

E Invokes
PlaceOrderService

PendingOrder pendingOrder = result.getPendingOrder();

F Stores pending
order ID

session.setAttribute(
"pendingOrderId",
pendingOrder.getId();

G Determines JSP
page to invoke

switch (result.getResult()) {
case PendingOrder.OK :
displayAvailableRestaurants(
request,
response,
deliveryAddress,
deliveryTime,