/// <summary>
/// The class constructor
/// </summary>
/// <param name="deviceClient">Instance of class for Device Steaming from the SDK</param>
/// <param name="_OnRecvText">Callback to handle received message, post stripping of flags</param>
/// <param name="deviceCurrentSettings">Optional custom class to handle processing of flags</param>
public DeviceStream_Device(DeviceClient deviceClient, ActionReceivedTextIO onRecvdText, ActionCommandD actionCommand = null, ActionReceivedText onDeviceStatusUpdateD = null, bool keepDeviceListening = false, DeviceAndSvcCurrentSettings deviceCurrentSettings = null)
{
this.deviceClient = deviceClient;
OnRecvdTextIO = onRecvdText;
OnDeviceStatusUpdateD = onDeviceStatusUpdateD;
KeepDeviceListening = keepDeviceListening;
ActionCmdD = actionCommand;
if (deviceCurrentSettings != null)
{
DeviceCurrentSettings = deviceCurrentSettings;
}
else
{
DeviceCurrentSettings = new DeviceAndSvcCurrentSettings();
}
DeviceCurrentSettings.KeepDeviceListening = KeepDeviceListening;
}
/// <summary>
/// Method called from app to instantiate this class and start Device Streaming on Device.
/// </summary>
/// <param name="device_cs">Device Id eg "MyDevice"</param>
/// <param name="onRecvdTextD">Callback to handle received message, post stripping of flags</param>
/// <param name="deviceCurrentSettings">Optional custom class to handle processing of flags</param>
/// <returns>The running task</returns>
public static async Task RunDevice(string device_cs, ActionReceivedTextIO onRecvdTextD, ActionReceivedText onDeviceStatusUpdateD = null, ActionCommandD actionCommandD = null, bool keepDeviceListening = false, DeviceAndSvcCurrentSettings deviceCurrentSettings = null)
{
bool __keepDeviceListening = false;
do
{
TransportType device_hubTransportTryp = DeviceStreamingCommon.device_transportType;
try
{
using (DeviceClient deviceClient = DeviceClient.CreateFromConnectionString(device_cs, device_hubTransportTryp))
{
if (deviceClient == null)
{
System.Diagnostics.Debug.WriteLine("Failed to create DeviceClient!");
//return null;
}
deviceStream_Device = new DeviceStream_Device(deviceClient, onRecvdTextD, actionCommandD, onDeviceStatusUpdateD, keepDeviceListening, deviceCurrentSettings);
if (deviceStream_Device == null)
{
System.Diagnostics.Debug.WriteLine("Failed to create DeviceStreamClient!");
//return null;
}
try
{
await deviceStream_Device.RunDeviceAsync();//.GetAwaiter().GetResult();
}
catch (Microsoft.Azure.Devices.Client.Exceptions.IotHubCommunicationException)
{
System.Diagnostics.Debug.WriteLine("3 Error RunDevice(): Hub connection failure");
}
catch (Microsoft.Azure.Devices.Common.Exceptions.DeviceNotFoundException)
{
System.Diagnostics.Debug.WriteLine("3 Error RunDevice(): Device not found");
}
catch (TaskCanceledException)
{
System.Diagnostics.Debug.WriteLine("3 Error RunDevice(): Task canceled");
}
catch (OperationCanceledException)
{
System.Diagnostics.Debug.WriteLine("3 Error RunDevice(): Operation canceled");
}
catch (Exception ex)
{
if (!ex.Message.Contains("Timed out"))
{
System.Diagnostics.Debug.WriteLine("3 Error RunDevice(): " + ex.Message);
}
else
{
System.Diagnostics.Debug.WriteLine("3 Error RunDevice(): Timeout");
}
}
}
//return null;
}
catch (Microsoft.Azure.Devices.Client.Exceptions.IotHubCommunicationException)
{
System.Diagnostics.Debug.WriteLine("4 Error RunDevice(): Hub connection failure");
}
catch (Microsoft.Azure.Devices.Common.Exceptions.DeviceNotFoundException)
{
System.Diagnostics.Debug.WriteLine("4 Error RunDevice(): Device not found");
}
catch (TaskCanceledException)
{
System.Diagnostics.Debug.WriteLine("4 Error RunDevice(): Task canceled");
}
catch (OperationCanceledException eex)
{
System.Diagnostics.Debug.WriteLine("4 Error RunDevice(): Operation canceled \r\n" + eex.Message);
}
catch (Exception ex)
{
if (!ex.Message.Contains("Timeout"))
{
System.Diagnostics.Debug.WriteLine("4 Error RunDevice(): " + ex.Message);
}
else
{
System.Diagnostics.Debug.WriteLine("4 Error RunDevice(): Timeout");
}
}
__keepDeviceListening = deviceStream_Device.DeviceCurrentSettings.KeepDeviceListening;
if (__keepDeviceListening)
{
deviceStream_Device.UpdateStatus("Continuing to listen");
}
else
{
deviceStream_Device.UpdateStatus("Not listening");
}
//Nb: deviceStream_Device is disposed here.
} while (__keepDeviceListening);
}
