private async void OnTemperatureChangedEvent(TemperatureChangedEventArgs e)
{
try
{
this.SensorReading = e.SensorReading;
this.ResetAlertCommand.RaiseCanExecuteChanged();
if (e.SensorReading.Source == ApplicationSensorReadingSource.Device)
{
this.DeviceName = "MCP9808";
this.ShowTelemetryStatus = true;
}
else
{
this.DeviceName = "Cloud";
this.ShowTelemetryStatus = false;
}
}
catch (Exception ex)
{
this.EventAggregator.GetEvent<Events.DebugEvent>().Publish(new DebugEventArgs(ex));
}
await Task.FromResult(0);
}
/// <summary>
/// Sends a sensor reading to all connected clients.
/// </summary>
/// <param name="e">The temperature changed event arguments.</param>
public void SendTemperatureChangedEvent(TemperatureChangedEventArgs e)
{
this.Clients.All.OnTemperatureChangedEvent(e);
}
private async void OnTemperatureChangedEvent(TemperatureChangedEventArgs e)
{
try
{
// ***
// *** Send the start event
// ***
this.EventAggregator.GetEvent<Events.TelemetryStatusChangedEvent>().Publish(new TelemetryStatusChangedEventArgs()
{
Status = TelemetryChangedStatus.Sending,
TotalSent = _totalSent,
TotalFailed = _totalFailed
});
// ***
// *** Only send telemetry events when the source is Device
// ***
if (e.SensorReading.Source == ApplicationSensorReadingSource.Device)
{
SensorReading sensorReading = new SensorReading()
{
Source = 1,
TimestampUtc = e.SensorReading.TimestampUtc,
Temperature = e.SensorReading.Temperature,
IsCritical = e.SensorReading.IsCritical ? 1 : 0,
IsAboveUpperThreshold = e.SensorReading.IsAboveUpperThreshold ? 1 : 0,
IsBelowLowerThreshold = e.SensorReading.IsBelowLowerThreshold ? 1 : 0
};
if (await AzureServiceBusHub.SendData(this.HubConfiguration, sensorReading))
{
// ***
// *** Increment the counter
// ***
_totalSent++;
}
else
{
// ***
// *** Increment the failed counter
// ***
_totalFailed++;
}
}
}
catch (Exception ex)
{
// ***
// *** Increment the failed counter
// ***
_totalFailed++;
this.EventAggregator.GetEvent<Events.DebugEvent>().Publish(new DebugEventArgs(ex));
}
finally
{
// ***
// *** Send the completed event
// ***
this.EventAggregator.GetEvent<Events.TelemetryStatusChangedEvent>().Publish(new TelemetryStatusChangedEventArgs()
{
Status = TelemetryChangedStatus.Completed,
TotalSent = _totalSent,
TotalFailed = _totalFailed
});
}
}