private async void ConnectionStatusHandler(ConnectionStatus status, ConnectionStatusChangeReason reason)
{
bool isConnected = false;
string deviceId = "Unknown";
if (status == ConnectionStatus.Connected)
{
isConnected = true;
}
await this.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
if (isConnected)
{
statusBorder.BorderBrush = new SolidColorBrush(Colors.Green);
deviceId = ExtractDeviceId(tbConnectionString.Text);
tbDeviceName.Text = "DeviceName = " + deviceId.ToString();
tbConnectionStatus.Text = "ConnectionStatus = " + status.ToString();
tbConnectionStatusChangedReason.Text = "ChangedReason = " + reason.ToString();
ApplicationData.Current.LocalSettings.Values["deviceConnectionString"] = tbConnectionString.Text;
}
else
{
statusBorder.BorderBrush = new SolidColorBrush(Colors.Red);
tbDeviceName.Text = "DeviceName = Unknown";
tbConnectionStatus.Text = "ConnectionStatus = " + status.ToString();
tbConnectionStatusChangedReason.Text = "ChangedReason = " + reason.ToString();
}
});
}
private void ResetConnection(ConnectionStatus status, ConnectionStatusChangeReason reason)
{
_logger.Debug("Resetting Connection");
_logger.Debug($"Status: {status.ToString()}, Reason: {reason.ToString()}");
// Attempt to close any existing connections before creating a new one
if (_deviceClient != null)
{
try
{
if (reason == ConnectionStatusChangeReason.Retry_Expired)
{
// It has been observed that closing the device client with reason 'Retry_Expired'
// results in an assert, so don't call close and log the action taken.
// Exception:
// DotNetty.Transport.Channels.ClosedChannelException: I/O error occurred.
//
_logger.Debug($"As reason was {reason.ToString()} skipping '_deviceClient.CloseAsync().Wait()'");
}
else
{
_deviceClient.CloseAsync().Wait();
}
}
catch (AggregateException ae)
{
//ANDREWDENN_TODO: Once "IotHubClientException" is public then make this catch
//explicitly look for IotHubClientException and SocketException
//https://docs.microsoft.com/en-us/dotnet/api/system.aggregateexception.flatten?view=netframework-4.7.2
_logger.Debug(ae, "_deviceClient.CloseAsync().Wait()");
}
}
// Create new connection
CreateDeviceClient();
}
private void DeviceClientConnectionStatusChanged(ConnectionStatus status, ConnectionStatusChangeReason reason)
{
_logger.Debug($"Status: {status.ToString()}, Reason: {reason.ToString()}");
switch (status)
{
case ConnectionStatus.Disabled:
case ConnectionStatus.Disconnected:
ResetConnection(status, reason);
break;
default:
break;
}
}
/// <summary>
/// Callback for whenever the connection status changes
/// Mostly we just log the new status and the reason.
/// But for some disconnects we need to handle them here differently for our module to recover
/// </summary>
/// <param name="status"></param>
/// <param name="reason"></param>
private static void ConnectionStatusHandler(ConnectionStatus status, ConnectionStatusChangeReason reason)
{
Log.Information($"Module connection changed. New status={status.ToString()} Reason={reason.ToString()}");
// Sometimes the connection can not be recovered if it is in either of those states.
// To solve this, we exit the module. The Edge Agent will then restart it (retrying with backoff)
if (reason == ConnectionStatusChangeReason.Retry_Expired)
{
Log.Error($"Connection can not be re-established. Exiting module");
Environment.Exit(1);
}
}
private void IoTHubStatusChanged(ConnectionStatus status, ConnectionStatusChangeReason reason)
{
ShowLog($"IoT Hub Status Changed - State={status.ToString()},Reason={reason.ToString()}");
}
private void ConnectionStatusChanged(ConnectionStatus status, ConnectionStatusChangeReason reason)
{
string logPrefix = "system".BuildLogPrefix();
_logger.LogDebug($"{logPrefix}::{_deviceSettings.ArtifactId}::Connection status changed-New status:{status.ToString()}-Reason:{reason.ToString()}.");
}
/// <summary>
/// Callback for whenever the connection status changes
/// Mostly we just log the new status and the reason.
/// But for some disconnects we need to handle them here differently for our module to recover
/// </summary>
/// <param name="status"></param>
/// <param name="reason"></param>
private static void ConnectionStatusHandler(ConnectionStatus status, ConnectionStatusChangeReason reason)
{
Console.WriteLine($"Module connection changed. New status={status.ToString()} Reason={reason.ToString()}");
// Sometimes the connection can not be recovered if it is in either of those states.
// To solve this, we exit the module. The Edge Agent will then restart it (retrying with backoff)
if (reason == ConnectionStatusChangeReason.Retry_Expired || reason == ConnectionStatusChangeReason.Client_Close)
{
Console.WriteLine($"Connection can not be re-established. Exiting module");
cts?.Cancel();
}
}
