public async Task <IHttpActionResult> PostOrder([FromBody] TicketOrder order)
{
var error = "";
var handler = HandlersFactory.GetProfilerHandler(TheSettingService, TheLoggerService);
handler.Start(LOG_TAG, "PostOrder", GetServiceProperties());
try
{
TicketOrder.Validate(order);
ServiceLocationService locator = new ServiceLocationService();
UriBuilderService builder = new UriBuilderService(Constants.ContosoEventsApplicationInstance, Constants.ContosoEventsTicketOrderServiceName);
ITicketOrderService dispenderService = locator.Create <ITicketOrderService>(builder.ToUri());
return(Ok(await dispenderService.EnqueueOrder(order)));
}
catch (Exception ex)
{
error = ex.Message;
return(BadRequest(ex.Message));
}
finally
{
handler.Stop(error);
}
}
public async Task ProcessOrder(TicketOrder order)
{
var error = "";
var handler = HandlersFactory.GetProfilerHandler(SettingService, LoggerService);
handler.Start(LOG_TAG, "ProcessOrder", GetActorProperties());
try
{
if (order == null)
{
handler.Info("Process order is null");
return;
}
var state = await this.StateManager.GetStateAsync <TicketOrder>(ActorStatePropertyName);
state = order;
// Validate the order
bool isValid = true;
try
{
TicketOrder.Validate(state);
}
catch (Exception e)
{
state.Note = e.Message;
isValid = false;
}
if (isValid)
{
// Validate the event
TicketEvent tEvent = await this.DataStoreService.GetEventById(order.EventId);
if (tEvent == null)
{
state.FulfillDate = null;
state.IsFulfilled = false;
state.Note = "The Event ID is not valid!";
//TODO: Exercise 6 - Task 1
//state.Status = OrderStatuses.Invalid;
}
else
{
state.PricePerTicket = tEvent.PricePerTicket;
state.Currency = tEvent.Currency;
state.Price = state.Tickets * state.PricePerTicket;
// Locate the event actor
IEventActor eventActor = this.ActorLocationService.Create <IEventActor>(new ActorId(order.EventId), Constants.ContosoEventsApplicationName);
bool isAvailable = await eventActor.ReserveTickets(order);
if (isAvailable || !SettingService.IsTicketAvailabilityCheck())
{
// Charge credit card
string confirmationNumber = await this.PaymentProcessorService.Authorize(order);
if (!string.IsNullOrEmpty(confirmationNumber))
{
state.PaymentProcessorConfirmation = confirmationNumber;
state.FulfillDate = DateTime.Now;
state.IsFulfilled = true;
//TODO: Exercise 6 - Task 1
//state.Status = OrderStatuses.Fufilled;
}
else
{
state.FulfillDate = null;
state.IsFulfilled = false;
state.Note = "Credit card failed to authorize!";
await eventActor.FailTickets(order);
//TODO: Exercise 6 - Task 1
//state.Status = OrderStatuses.CreditCardDenied;
}
}
else
{
state.FulfillDate = null;
state.IsFulfilled = false;
state.Note = "Event Tickets are exhausted!";
//TODO: Exercise 6 - Task 1
//state.Status = OrderStatuses.TicketsExhausted;
}
}
}
else
{
state.FulfillDate = null;
state.IsFulfilled = false;
//TODO: Exercise 6 - Task 1
//state.Status = OrderStatuses.Invalid;
}
// Make sure the state is saved
await SetEntityStateAsync(state);
// Externalize the state
await this.ExternalizationService.Externalize(state);
// Notify the user
await this.NotificationService.Notify(state);
}
catch (Exception ex)
{
error = ex.Message;
}
finally
{
handler.Stop(error);
if (!string.IsNullOrEmpty(error))
{
this.HealthReporterService.SendReportForService(HealthState.Error, GetHealthErrorMessage("ProcessOrder", error));
}
}
}
// ITicketDispenserService Interface Implementation
public async Task <string> EnqueueOrder(TicketOrder order)
{
var error = "";
var handler = HandlersFactory.GetProfilerHandler(SettingService, LoggerService);
handler.Start(LOG_TAG, "EnqueueOrder", GetServiceProperties());
string orderId = Guid.NewGuid().ToString();
bool blProceed = true;
try
{
// Do some sanity checking
TicketOrder.Validate(order);
// Quick check to see if tickets are available
if (SettingService.IsTicketAvailabilityCheck())
{
IEventActor eventActor = this.ActorLocationService.Create <IEventActor>(new ActorId(order.EventId), Constants.ContosoEventsApplicationName);
if (!await eventActor.CheckTickets(order))
{
handler.Info("Processing order - Event Id: " + order.EventId + " - Order Id: " + orderId + " - tickets: " + order.Tickets + " - Tickets are exhausted!");
// Do not throw an exception because we will get a health issue
// throw new Exception("Tickets are exhausted!");
// Need to alert the admin only as tickets are exhausted
// Prevent proceeding with the order
blProceed = false;
// Reset the order id to indicate to the Web API client that the order did not go through
orderId = "";
}
}
if (blProceed)
{
order.Id = orderId;
handler.Info("Processing order - Event Id: " + order.EventId + " - Order Id: " + orderId + " - tickets: " + order.Tickets);
//TODO: Task 2.1 - Get (or create) a reliable queue called "OrderQueue" in this partition.
//var requests = await this.StateManager./*...complete this...*/<IReliableQueue<TicketOrder>>(OrderQueueName);
var requests = await this.StateManager.GetOrAddAsync <IReliableQueue <TicketOrder> >(OrderQueueName);
//TODO: Task 2.2 - Create a new transaction scope
//using (var tx = this.StateManager./*...complete this...*/)
//{
// TODO: Task 2.3 - Enqueue the order to the reliable queue within the transaction
//await requests.EnqueueAsync(/*...complete this...*/, /*...complete this...*/);
// TODO: Task 2.4 - Commit the transaction if enqueue was successful
//await tx./*...complete this...*/();
//}
using (var tx = this.StateManager.CreateTransaction())
{
await requests.EnqueueAsync(tx, order);
await tx.CommitAsync();
}
}
}
catch (Exception ex)
{
error = ex.Message;
throw ex;
}
finally
{
handler.Stop(error);
if (!string.IsNullOrEmpty(error))
{
this.HealthReporterService.SendReportForService(HealthState.Error, GetHealthErrorMessage("EnqueueOrder", error));
}
}
return(orderId);
}
