public async Task Handle(GpsDataReceivedEvent @event)
{
_logger.LogDebug("Received GPS data from broker...");
var sensorDataEntity = new SensorData
{
SensorKey = "gps",
TimeStamp = DateTime.UtcNow,
Value = JsonConvert.SerializeObject(new GpsData
{
Latitude = @event.Latitude,
Longitude = @event.Longitude
})
};
try
{
// Validate payload
new GpsDataValidator().Validate(sensorDataEntity);
// Save to DB
await _sensorDataRepository.CreateAsync(sensorDataEntity);
// Notify clients via SignalR
await _hubContext.Clients.All.SendAsync(Constants.Topics.GpsPosition, sensorDataEntity.Value);
}
catch (ValidationException ex)
{
_logger.LogError(ex, "Received invalid GPS data!");
}
catch (Exception ex)
{
_logger.LogError(ex, $"Unknown error at {nameof(GpsDataReceivedEventHandler)}");
}
}
public async Task Handle(SaveSensorDataEvent @event)
{
// Validate
if (string.IsNullOrEmpty(@event.SensorKey) || !double.TryParse(@event.Value.ToString(), out _))
{
return;
}
// Save in DB
var entity = new SensorData
{
SensorKey = @event.SensorKey,
Value = @event.Value.ToString(CultureInfo.InvariantCulture),
TimeStamp = @event.Time ?? DateTime.UtcNow
};
SensorDataValidatorExecutor.Execute(entity, true);
var created = await _sensorDataRepository.CreateAsync(entity);
var data = JsonConvert.SerializeObject(created);
// Notify UI via SignalR (uses 'sensor' topic)
await _hubContext.Clients.All.SendAsync(Constants.Topics.Sensor, data);
}
public async Task Handle(CompassDataReceivedEvent @event)
{
_logger.LogDebug("Received compass data from broker...");
var sensorDataEntity = new SensorData
{
SensorKey = "compass",
TimeStamp = DateTime.UtcNow,
Value = @event.Angle.ToString()
};
try
{
// Save to DB
await _sensorDataRepository.CreateAsync(sensorDataEntity);
// Notify clients via SignalR
await _hubContext.Clients.All.SendAsync(Constants.Topics.Compass, sensorDataEntity.Value);
}
catch (Exception ex)
{
_logger.LogError(ex, $"Unknown error at {nameof(CompassDataReceivedEventHandler)}");
}
}
