private async Task <LoRaDevice> InitializeDeviceAsync(LoRaDevice loRaDevice)
{
try
{
// Our device if it does not have a gateway assigned or is assigned to our
var isOurDevice = string.IsNullOrEmpty(loRaDevice.GatewayID) || string.Equals(loRaDevice.GatewayID, this.configuration.GatewayID, StringComparison.InvariantCultureIgnoreCase);
// Only create client if the device is our
if (!isOurDevice)
{
loRaDevice.IsOurDevice = false;
return(loRaDevice);
}
// Calling initialize async here to avoid making async calls in the concurrent dictionary
// Since only one device will be added, we guarantee that initialization only happens once
if (await loRaDevice.InitializeAsync())
{
// revalidate based on device twin property
loRaDevice.IsOurDevice = string.IsNullOrEmpty(loRaDevice.GatewayID) || string.Equals(loRaDevice.GatewayID, this.configuration.GatewayID, StringComparison.InvariantCultureIgnoreCase);
if (loRaDevice.IsOurDevice)
{
// once added, call initializers
if (this.initializers != null)
{
foreach (var initializer in this.initializers)
{
initializer.Initialize(loRaDevice);
}
}
}
// checking again in case one of the initializers change the value
if (!loRaDevice.IsOurDevice)
{
// Initialization does not use activity counters
// This should not fail
if (!loRaDevice.TryDisconnect())
{
Logger.Log(loRaDevice.DevEUI, "failed to disconnect device from another gateway", LogLevel.Error);
}
}
return(loRaDevice);
}
}
catch (Exception ex)
{
// device does not have the required properties
Logger.Log(loRaDevice.DevEUI ?? this.devAddr, $"error initializing device {loRaDevice.DevEUI}. {ex.Message}", LogLevel.Error);
}
// instance not used, dispose the connection
loRaDevice.Dispose();
return(null);
}
