public TicketPresentation PurchaseTicket(string eventId, string reservationId)
{
TicketPresentation presentation = new TicketPresentation();
PurchaseTicketRequest request = new PurchaseTicketRequest();
request.ReservationId = reservationId;
request.EventId = eventId;
request.CorrelationId = reservationId;
PurchaseTicketResponse response = _ticketService.PurchaseTicket(request);
if (response.Success)
{
presentation.Description = string.Format("{0} ticket(s) purchased for {1}. <br/>" + "" +
"<small>Your e-ticket id is {2}</small>"
, response.NoOfTickets
, response.EventName
, response.TicketId);
presentation.EventId = response.EventId;
presentation.TicketId = response.TicketId;
presentation.WasAbleToPurchaseTicket = true;
}
else
{
presentation.WasAbleToPurchaseTicket = false;
presentation.Description = response.Message;
}
return presentation;
}
public TicketPresentation PurchaseReservedTicket(string EventId, string ReservationId)
{
TicketPresentation ticket = new TicketPresentation();
PurchaseTicketResponse response = new PurchaseTicketResponse();
PurchaseTicketRequest request = new PurchaseTicketRequest();
request.ReservationId = ReservationId;
request.EventId = EventId;
request.CorrelationId = ReservationId; // In this instance we can use the ReservationId
response = _ticketService.PurchaseTicket(request);
if (response.Success)
{
ticket.Description = String.Format("{0} ticket(s) purchased for {1}.<br/><small>Your e-ticket id is {2}.</small>", response.CountOfTickets, response.EventName, response.TicketId);
ticket.EventId = response.EventId;
ticket.TicketId = response.TicketId;
ticket.WasAbleToPurchaseTicket = true;
}
else
{
ticket.WasAbleToPurchaseTicket = false;
ticket.Description = response.Message;
}
return(ticket);
}
public void Run()
{
// 95% chance that ticket purchase is approved
Random gen = new Random();
bool purchaseApproved = gen.Next(100) <= (100 - failRate);
// process each message
PurchaseTicketRequest ticketRequestMessage = JsonConvert.DeserializeObject <PurchaseTicketRequest>(payloadMessage);
try
{
string methodName = ticketRequestMessage.MethodName;
//string iotHubName = Environment.GetEnvironmentVariable("IotHubName");
string deviceId = ticketRequestMessage.DeviceId;
//string responseUrl = $"https://{iotHubName}.azure-devices.net/twins/{deviceId}/methods?api-version=2018-06-30";
string transactionId = ticketRequestMessage.TransactionId;
var payload = new PurchaseTicketPayload()
{
TransactionId = transactionId,
IsApproved = purchaseApproved,
DeviceId = ticketRequestMessage.DeviceId,
DeviceType = ticketRequestMessage.DeviceType,
MessageType = ticketRequestMessage.MessageType,
};
log.LogInformation($"Response Method: {methodName}");
InvokeMethod(methodName, payload).GetAwaiter().GetResult();
}
catch (Exception ex)
{
log.LogError(ex.Message);
}
}
public void TestKioskPurchaseTicket()
{
FakeDeviceClient fakeDeviceClient = new FakeDeviceClient();
FakeEventScheduler fakeScheduler = new FakeEventScheduler();
TestContext.WriteLine(string.Empty);
TestContext.WriteLine(">> Testing the purchase ticket simulated event..");
KioskDevice device = new KioskDevice(deviceconfig, fakeDeviceClient, fakeScheduler);
// execute a purchase ticket event and check the result, it should always be false
Assert.IsFalse(fakeScheduler.EventList[0].EventDelegate());
// that delegate should have sent one message to the cloud
Assert.AreEqual(fakeDeviceClient.sendMessageLog.Count, 1);
// check the message sent to make sure its correct
// create a sample request for comparison
PurchaseTicketRequest expectedRequest = new PurchaseTicketRequest()
{
DeviceId = deviceconfig.DeviceId,
DeviceType = deviceconfig.DeviceType,
TransactionId = "fakeId",
CreateTime = System.DateTime.UtcNow,
Price = 1,
MethodName = "ReceivePurchaseTicketResponse"
};
// get request message into an object so we can compare it
PurchaseTicketRequest actualRequest = JsonConvert.DeserializeObject <PurchaseTicketRequest>(fakeDeviceClient.sendMessageLog[0]);
// compare properties to make sure they're valid.
Assert.AreEqual(actualRequest.DeviceId, expectedRequest.DeviceId);
Assert.AreEqual(actualRequest.DeviceType, expectedRequest.DeviceType);
Assert.AreEqual(actualRequest.MessageType, expectedRequest.MessageType);
// skipping the TransactionID and CreationTime
Assert.IsTrue(actualRequest.Price > 2);
Assert.IsTrue(actualRequest.Price < 100);
Assert.AreEqual(actualRequest.MethodName, expectedRequest.MethodName);
//
/// test the CloudToEvent PurchaseResponse call we expect back
//
TestContext.WriteLine(string.Empty);
TestContext.WriteLine(">> Testing the ticket approval direct method..");
// test the direct method itself
PurchaseTicketPayload approvePurchaseMethodkRequest = new PurchaseTicketPayload()
{
IsApproved = true,
DeviceId = expectedRequest.DeviceId,
DeviceType = expectedRequest.DeviceType,
MessageType = expectedRequest.MessageType,
};
string requestString = JsonConvert.SerializeObject(approvePurchaseMethodkRequest);
// execute the method
MethodRequest methodRequest = new MethodRequest(expectedRequest.MethodName, Encoding.UTF8.GetBytes(requestString));
MethodResponse methodresult = fakeDeviceClient.directMethods[0](methodRequest, null).Result;
// check results
Assert.AreEqual(methodresult.Status, 200); // got back an ok
}
/// <summary>
/// 购票
/// </summary>
/// <param name="PurchaseTicketRequest">购票请求</param>
/// <returns></returns>
public PurchaseTicketResponse PurchaseTicket(PurchaseTicketRequest PurchaseTicketRequest)
{
PurchaseTicketResponse response = new PurchaseTicketResponse();
try
{
// Check for a duplicate transaction using the Idempotent Pattern,
// the Domain Logic could cope but we can't be sure.
//判断该请求在字典仓储中是否唯一
//1 即判断
if (_reservationResponse.IsAUniqueRequest(PurchaseTicketRequest.CorrelationId))
{
TicketPurchase ticket;
//找到指定的事件
Event my_event = _eventRepository.FindBy(new Guid(PurchaseTicketRequest.EventId));
//判断该票是否已经预定
if (my_event.CanPurchaseTicketWith(new Guid(PurchaseTicketRequest.ReservationId)))
{
//根据购票id购票
ticket = my_event.PurchaseTicketWith(new Guid(PurchaseTicketRequest.ReservationId));
//保存事件
_eventRepository.Save(my_event);
response = ticket.ConvertToPurchaseTicketResponse();
response.Success = true;
}
else
{
response.Message = my_event.DetermineWhyATicketCannotbePurchasedWith(new Guid(PurchaseTicketRequest.ReservationId));
response.Success = false;
}
_reservationResponse.LogResponse(PurchaseTicketRequest.CorrelationId, response);
}
else
{
// Retrieve last response
response = _reservationResponse.RetrievePreviousResponseFor(PurchaseTicketRequest.CorrelationId);
}
}
catch (Exception ex)
{
// Shield Exceptions
response.Message = ErrorLog.GenerateErrorRefMessageAndLog(ex);
response.Success = false;
}
return(response);
}
public void PurchaseTicketTest()
{
// sample payload to test
PurchaseTicketRequest sampleRequest = new PurchaseTicketRequest()
{
DeviceId = "rjTest",
DeviceType = DeviceType.TicketKiosk,
TransactionId = "c3d8b13c - 3e8f - 4e57 - a7d5 - ae8adaa8c2b2",
CreateTime = System.DateTime.UtcNow,
Price = 54,
MethodName = "ReceivePurchaseTicketResponse"
};
string sampleRequestString = JsonConvert.SerializeObject(sampleRequest);
// expected response
PurchaseTicketPayload expectedResponse = new PurchaseTicketPayload()
{
DeviceId = sampleRequest.DeviceId,
TransactionId = sampleRequest.TransactionId,
DeviceType = sampleRequest.DeviceType,
MessageType = MessageType.cmdPurchaseTicket,
IsApproved = true
};
string expectedResponseString = JsonConvert.SerializeObject(expectedResponse);
FakeInvokeDeviceMethod serviceClient = new FakeInvokeDeviceMethod();
PurchaseTicketAction action = new PurchaseTicketAction(serviceClient, 0, sampleRequestString, logger);
action.Run();
// Assert that serviceClient.invocations count is 1
Assert.That(Equals(serviceClient.invocations.Count, 1));
// Assert that the device id from the invocation is as expected
Assert.That(string.Equals(serviceClient.invocations[0].device, "rjTest"));
// Assert that the method name details from the invocation is as expected
StringAssert.AreEqualIgnoringCase(sampleRequest.MethodName, serviceClient.invocations[0].method.MethodName);
// get response to object
PurchaseTicketPayload actualResponse = JsonConvert.DeserializeObject <PurchaseTicketPayload>(serviceClient.invocations[0].method.GetPayloadAsJson());
// check the expected against the actuals
Assert.AreEqual(expectedResponse.DeviceId, actualResponse.DeviceId, "Device IDs do not match");
Assert.AreEqual(expectedResponse.DeviceType, actualResponse.DeviceType, "Device Types do not match");
Assert.AreEqual(expectedResponse.TransactionId, actualResponse.TransactionId, "Transaction IDs do not match");
Assert.AreEqual(expectedResponse.MessageType, actualResponse.MessageType, "Message Types do not match");
Assert.IsTrue(actualResponse.IsApproved, "Expected Ticket to be approved, but it was rejected");
}
public PurchaseTicketResponse PurchaseTicket(PurchaseTicketRequest purchaseTicketRequest)
{
PurchaseTicketResponse response = new PurchaseTicketResponse();
try
{
// Check for a duplicate transaction using the Idempotent pattern;
// the Domain Logic could cope but you can’t be sure.
if (_reservationResponse.IsAUniqueRequest(purchaseTicketRequest.CorrelationId))
{
TicketPurchase ticket;
Event Event = _eventRepository.FindBy(new Guid(purchaseTicketRequest.EventId));
if (Event.CanPurchaseTicketWith(new Guid(purchaseTicketRequest.ReservationId)))
{
ticket = Event.PurchaseTicketWith(new Guid(purchaseTicketRequest.ReservationId));
_eventRepository.Save(Event);
response = ticket.ConvertToPurchaseTicketResponse();
response.Success = true;
}
else
{
response.Message = Event.DetermineWhyATicketCannotbePurchasedWith(
new Guid(purchaseTicketRequest.ReservationId));
response.Success = false;
}
_reservationResponse.LogResponse(purchaseTicketRequest.CorrelationId, response);
}
else
{
response = _reservationResponse.RetrievePreviousResponseFor(
purchaseTicketRequest.CorrelationId);
}
}
catch (Exception ex)
{
// Shield exceptions
response.Message = ErrorLog.GenerateErrorRefMessageAndLog(ex);
response.Success = false;
}
return(response);
}
public static void Run(
[
EventHubTrigger("purchaseticketeventhub",
Connection = "receiverConnectionString")
]
EventData[] eventHubMessages, ILogger log)
{
// process messages
foreach (EventData message in eventHubMessages)
{
string messagePayload = Encoding.UTF8.GetString(message.Body.Array);
// process each message
PurchaseTicketRequest ticketRequestMessage = JsonConvert.DeserializeObject <PurchaseTicketRequest>(messagePayload);
try
{
string methodName = ticketRequestMessage.MethodName;
string deviceId = ticketRequestMessage.DeviceId;
string transactionId = ticketRequestMessage.TransactionId;
var payload = new PurchaseTicketPayload()
{
TransactionId = transactionId,
IsApproved = true,
DeviceId = ticketRequestMessage.DeviceId,
DeviceType = ticketRequestMessage.DeviceType,
MessageType = ticketRequestMessage.MessageType,
};
log.LogInformation($"Response Method: {methodName}");
var connectionString = Environment.GetEnvironmentVariable("IotHubConnectionString");
serviceClient = ServiceClient.CreateFromConnectionString(connectionString);
InvokeMethod(methodName, payload).GetAwaiter().GetResult();
}
catch (Exception ex)
{
log.LogError(ex.Message);
}
}
}
private static async void SendPurchaseTicketMessageToCloudAsync()
{
var random = new Random();
PurchaseTicketRequest purchaseTicketRequest = new PurchaseTicketRequest()
{
DeviceId = "rjTest",
DeviceType = "Kiosk",
MessageType = "Purchase",
TransactionId = Guid.NewGuid().ToString(),
CreateTime = System.DateTime.UtcNow,
Price = random.Next(2, 100),
MethodName = "ReceivePurchaseTicketResponse"
};
var messageString = JsonConvert.SerializeObject(purchaseTicketRequest);
var eventJsonBytes = Encoding.UTF8.GetBytes(messageString);
var message = new Microsoft.Azure.Devices.Client.Message(eventJsonBytes)
{
ContentEncoding = "utf-8",
ContentType = "application/json"
};
// Add a custom application property to the message.
// An IoT hub can filter on these properties without access to the message body.
var messageProperties = message.Properties;
messageProperties.Add("deviceId", "rjTest");
// Send the telemetry message
//await _deviceClient.SendMessageAsync(messageString);
//DeviceClient client = DeviceClient.CreateFromConnectionString(_connectionString, TransportType.Mqtt);
//client.SetMethodHandlerAsync("ReceivePurchaseTicketResponse", ReceivePurchaseTicketResponse, null).Wait();
await _deviceClient.SendMessageAsync(messageString);
//await client.SendEventAsync(message);
Console.WriteLine("{0} > Sending message: {1}", DateTime.Now, messageString);
Console.WriteLine();
}
private bool SendPurchaseTicketMessageToCloud()
{
var random = new Random();
PurchaseTicketRequest purchaseTicketRequest = new PurchaseTicketRequest()
{
DeviceId = this.deviceId,
DeviceType = this.deviceType,
TransactionId = Guid.NewGuid().ToString(),
CreateTime = System.DateTime.UtcNow,
Price = random.Next(2, 100),
MethodName = "ReceivePurchaseTicketResponse" // must match callback method
};
var messageString = JsonConvert.SerializeObject(purchaseTicketRequest);
SendMessageToCloud(messageString);
Console.WriteLine("{0} > Sending message: {1}", DateTime.Now, messageString);
Console.WriteLine();
return(false); // don't restart timer
}
public PurchaseTicketResponse PurchaseTicket(PurchaseTicketRequest request)
{
PurchaseTicketResponse response = new PurchaseTicketResponse();
try
{
if (_messageResponse.IsUniqueRequest(request.CorrelationId))
{
TicketPurchase ticketPurchase;
Event eventEntity = _eventRepository.FindBy(new Guid(request.ReservationId));
if (eventEntity.CanPurchaseTicketWith(new Guid(request.ReservationId)))
{
ticketPurchase = eventEntity.PurchaseTicketWith(new Guid(request.ReservationId));
_eventRepository.Save(eventEntity);
response = ticketPurchase.ConvertToPurchaseTicketResponse();
response.Success = true;
}
else
{
response.Message = eventEntity.DetermineWhyATicketCannotbePurchasedWith(new Guid(request.ReservationId));
response.Success = false;
}
_messageResponse.LogResponse(request.CorrelationId, response);
}
else
{
response = _messageResponse.RetrievePreviousResponseFor(request.CorrelationId);
}
}
catch (Exception ex)
{
response.Success = false;
response.Message = ErrorLog.GenerateErrorRefMessageAndLog(ex);
}
return(response);
}
public PurchaseTicketResponse PurchaseTicket(PurchaseTicketRequest purchaseTicketRequest)
{
return(base.Channel.PurchaseTicket(purchaseTicketRequest));
}
