public static async Task Run([EventHubTrigger("device-data", Connection = "EventHubConnectionString")] string myEventHubMessage, TraceWriter log)
{
log.Info($"C# Event Hub trigger function processed a message: {myEventHubMessage}");
DependencyInjection.ConfigureInjection(log);
IEnumerable <Telemetry> telemetries = null;
try
{
telemetries = FrameParser.Parse(myEventHubMessage);
if (!telemetries.Any())
{
return;
}
}
catch (FormatException e)
{
log.Error($"Error on parsing frame", e);
return;
}
try
{
using (var scope = DependencyInjection.Container.BeginLifetimeScope())
{
DeviceService deviceService = scope.Resolve <DeviceService>();
AlarmService alarmService = scope.Resolve <AlarmService>();
TelemetryService telemetryService = scope.Resolve <TelemetryService>();
FreezingAlgorithme algorithme = scope.Resolve <FreezingAlgorithme>();
telemetryService.InsertTelemetries(telemetries);
string siteId = deviceService.GetSiteId(telemetries.First().DeviceId);
log.Info($"Telemetries inserted");
Task <FreezeForecast> forecast = algorithme.Execute(telemetries.Last());
log.Info($"FreezeForecast executed");
log.Info($"Create humidity alarm ...");
alarmService.CreateHumidityAlarm(telemetries.Last(), siteId);
log.Info($"Create temperature alarm ...");
alarmService.CreateTemperatureAlarm(telemetries.Last(), siteId);
log.Info($"Create battery alarm ...");
alarmService.CreateBatteryAlarm(telemetries.Last(), siteId);
FreezeForecast freeze = await forecast;
if (freeze.FreezingStart.HasValue && Freeze(freeze.FreezingProbabilityList.FirstOrDefault().Value))
{
log.Info($"Create freeze alarm (if not already active)...");
alarmService.CreateFreezingAlarm(telemetries.Last(), siteId, freeze.FreezingProbabilityList.FirstOrDefault().Value);
}
else if (!Freeze(freeze.FreezingProbabilityList.FirstOrDefault().Value))
{
log.Info($"Set latest freeze alarm as inactive ...");
alarmService.SetFreezeAlarmAsInactive(telemetries.Last().DeviceId);
}
log.Info($"Remove CommunicationFail alarm ...");
alarmService.CheckForActiveCommunicationFailureAlarms(telemetries.First().DeviceId);
log.Info($"Update last communication date ...");
deviceService.UpdateLastCommunication(telemetries.Last().DeviceId, DateTime.UtcNow);
}
}
catch (Exception e)
{
log.Error($"Error on processing telemetries", e);
throw;
}
}
