/// <summary>
/// Public constructor for TurbofanDevice class.
/// </summary>
/// <param name="deviceNumber">Integer number of the data series device to send</param>
/// <param name="iotHubConnectionString">Connection string for the IoT Hub in which to create the device</param>
/// <param name="fileManager">TrainingFileManager for the dataset to be read and sent</param>
public TurbofanDevice(int deviceNumber, string iotHubConnectionString, TrainingFileManager fileManager, string gatewayFqdn = null)
{
deviceUnitNumber = deviceNumber;
string deviceId = $"Client_{deviceNumber:000}";
deviceConnectionString = GetIotHubDevice(iotHubConnectionString, deviceId, gatewayFqdn).Result;
trainingFileManager = fileManager;
}
/// <summary>
/// Creates the set of tasks that will send data to the IoT hub.
/// </summary>
/// <param name="fileManager">TrainingFileManager for the data set for devices to send.</param>
/// <returns></returns>
private static List <Task> SetupDeviceRunTasks(TrainingFileManager fileManager)
{
List <Task> deviceTasks = new List <Task>();
string iotHubConnectionString = GetConnectionString();
int maxDevice = GetMaxDevice(fileManager);
string gatewayHost = gatewayHostNameOption.HasValue() ? gatewayHostNameOption.Value() : null;
for (int i = 1; i <= maxDevice; i++)
{
var device = new TurbofanDevice(i, iotHubConnectionString, fileManager, gatewayHost);
devices.Add(device);
deviceTasks.Add(device.RunDeviceAsync());
}
return(deviceTasks);
}
/// <summary>
/// Main entry point for the device harness. If args are not passed default data set FD003
/// is used and program prompts for IoT Hub connection string
/// </summary>
/// <param name="args">-x "hub connection string" -d "FDOO3" -c "certificate path" -m "maximum # devices"</param>
static void Main(string[] args)
{
InitializeApp();
app.OnExecute(() =>
{
InstallCertificate();
string trainingSet = GetDataSet();
var fileManager = new TrainingFileManager(trainingSet);
List <Task> deviceRunTasks = SetupDeviceRunTasks(fileManager);
Task.WhenAll(deviceRunTasks).Wait();
return(0);
});
app.Execute(args);
}
/// <summary>
/// Return the number of devices for which to send, which will be the lower
/// of the number of devices in the data set and the value of the passed in max devices
/// </summary>
/// <param name="filemanager">TrainingFileManager for the data set for devices to send.</param>
/// <returns></returns>
private static int GetMaxDevice(TrainingFileManager filemanager)
{
int maxDevices = filemanager.MaxDeviceId;
if (!maxDevicesOption.HasValue())
{
return(maxDevices);
}
int.TryParse(maxDevicesOption.Value(), out int maxRequested);
if (maxRequested == 0)
{
return(maxDevices);
}
return(Math.Min(maxRequested, maxDevices));
}