// Create a message and send it to IoT Hub.
static async Task SendEvent(DeviceClient deviceClient, Car CurrentCar, VehicleTireReading TireData)
{
try
{
string jsonData = JsonConvert.SerializeObject(TireData);
Microsoft.Azure.Devices.Client.Message eventMessage = new Microsoft.Azure.Devices.Client.Message(Encoding.UTF8.GetBytes(jsonData));
eventMessage.Properties.Add("messagetype", "TLM");
await deviceClient.SendEventAsync(eventMessage);
Console.WriteLine("Sent Data for Vehicle={0};ReadingId={1}", CurrentCar.Id, TireData.ReadingId);
}
catch (Exception ex)
{
Console.WriteLine("An error occured writing to event hub" + ex.ToString());
}
}
static void sendCarDataToEventHub(Car CurrentCar, VehicleTireReading TireData)
{
try
{
string jsonData = JsonConvert.SerializeObject(TireData);
EventData ehData = new EventData(Encoding.UTF8.GetBytes(jsonData));
ehData.Properties.Add("VehicleType", TireData.TypeOfCar);
ehData.Properties.Add("VehicleId", TireData.VehicleId.ToString());
ehData.Properties.Add("ReadingId", TireData.ReadingId);
ehClient.Send(ehData);
Console.WriteLine("Sent Data for Vehicle={0};ReadingId={1}", CurrentCar.Id, TireData.ReadingId);
}
catch (Exception ex)
{
Console.WriteLine("An error occured writing to event hub" + ex.ToString());
}
}
public static void GenerateCars(string FactoryName, int MaxCars)
{
_factoryName = FactoryName;
// Keep sending.
while (true)
{
Console.WriteLine("Starting cars");
for (int i = 0; i < MaxCars; i++)
{
Car newCar = CarFactory.CreateCar(_factoryName);
Console.WriteLine("Created a new car {0} of type {1}", newCar.Id, newCar.TypeOfCar);
}
while (true)
{
int currentSpeed = 0;
int maxSpeed = 0;
VehicleTireReading currentReading = null;
//Speed it up
Console.WriteLine("Speed up the cars");
foreach (Car currentCar in CarFactory.Cars)
{
maxSpeed = currentCar.CalcMaxSpeed();
do
{
currentReading = currentCar.ReadTires();
writeToConsole(currentReading, currentCar);
//If we have a flat, stop the car
if (currentReading.HasFlat)
{
maxSpeed = 0;
currentSpeed = 0;
currentCar.Stop();
}
else
{
currentCar.Move(new Random().Next(1, 10));
sendCarDataToEventHub(currentCar, currentReading);
currentSpeed = currentReading.CurrentSpeed;
//Sleep to simulate traffic
if (currentSpeed == new Random().Next(0, maxSpeed))
{
Thread.Sleep(new Random().Next(500, 3000));
currentCar.AddAirToTires(new Random().Next(0, 3), new Random().Next(0, 5));
break;
}
}
}while (currentSpeed < maxSpeed);
}
Thread.Sleep(new Random().Next(500, 3000));
//Now slow it down
Console.WriteLine("Slow down the car");
foreach (Car currentCar in CarFactory.Cars)
{
do
{
currentCar.Slow(new Random().Next(1, 10));
currentReading = currentCar.ReadTires();
if (!currentReading.HasFlat)
{
writeToConsole(currentReading, currentCar);
sendCarDataToEventHub(currentCar, currentReading);
currentSpeed = currentCar.CurrentSpeed;
if (currentSpeed == 0)
{
Thread.Sleep(new Random().Next(500, 3000));
currentCar.RemoveAirFromTires(new Random().Next(0, 3), new Random().Next(0, 5));
break;
}
}
}while (currentSpeed > 0);
}
}
}
}
static void writeToConsole(VehicleTireReading currentReading, Car currentCar)
{
Console.WriteLine("ReadingId={0};Factory={1};VehicleType={2};Speed={3};Miles={4}", currentReading.ReadingId, currentCar.FactoryName, currentCar.TypeOfCar, currentReading.CurrentSpeed, currentReading.CurrrentDistanceTraveled);
}
public static void CreateCar(string FactoryName)
{
_factoryName = FactoryName; //The car factory name that created this car
newCar = CarFactory.CreateCar(FactoryName);
string newCarDeviceId = string.Format("{0}-{1}-{2}", FactoryName, newCar.TypeOfCar.ToString(), newCar.Id.ToString());
string deviceConnectionString = selfRegisterAndSetConnString(newCarDeviceId).Result;
string iotHubConString = Microsoft.Azure.Devices.IotHubConnectionStringBuilder.Create(iotHubConnString).ToString();
carClient = DeviceClient.CreateFromConnectionString(iotHubConString, newCarDeviceId);
// Send an event
SendEvent(carClient, newCar, newCar.ReadTires()).Wait();
cancelToken = new CancellationTokenSource();
// Receive commands
Task commands = ReceiveCommands(carClient);
Console.WriteLine("Created a new car {0} of type {1}", newCar.Id, newCar.TypeOfCar);
while (true)
{
int currentSpeed = 0;
int maxSpeed = 0;
VehicleTireReading currentReading = null;
foreach (Car currentCar in CarFactory.Cars)
{
maxSpeed = currentCar.CalcMaxSpeed();
do
{
if (currentCar.State == VehicleState.Moving)
{
//Speed it up
Console.WriteLine("Speed up the car");
currentReading = currentCar.ReadTires();
writeToConsole(currentReading, currentCar);
//If we have a flat, stop the car
if (currentReading.HasFlat)
{
maxSpeed = 0;
currentSpeed = 0;
currentCar.Stop();
}
else
{
currentCar.Move(new Random().Next(1, 10));
SendEvent(carClient, currentCar, currentReading).Wait();
currentSpeed = currentReading.CurrentSpeed;
//Sleep to simulate traffic
if (currentSpeed == new Random().Next(0, maxSpeed))
{
Thread.Sleep(new Random().Next(500, 3000));
currentCar.AddAirToTires(new Random().Next(0, 3), new Random().Next(0, 5));
break;
}
}
}
}while (currentSpeed < maxSpeed);
}
Thread.Sleep(new Random().Next(500, 3000));
foreach (Car currentCar in CarFactory.Cars)
{
if (currentCar.State == VehicleState.Moving)
{
//Now slow it down
Console.WriteLine("Slow down the car");
do
{
currentCar.Slow(new Random().Next(1, 10));
currentReading = currentCar.ReadTires();
if (!currentReading.HasFlat)
{
writeToConsole(currentReading, currentCar);
SendEvent(carClient, currentCar, currentReading).Wait();
currentSpeed = currentCar.CurrentSpeed;
if (currentSpeed == 0)
{
Thread.Sleep(new Random().Next(500, 3000));
currentCar.RemoveAirFromTires(new Random().Next(0, 3), new Random().Next(0, 5));
break;
}
}
}while (currentSpeed > 0);
}
}
}
}
