private void HandleMqttMessage(MqttApplicationMessageReceivedEventArgs e)
{
var topics = e.ApplicationMessage.Topic.Split('/');
var device = topics[1];
var command = topics[3];
var value = Encoding.UTF8.GetString(e.ApplicationMessage.Payload);
int dataType;
if (!int.TryParse(command, out dataType))
{
_logger.LogInformation("Invalid format for data type {DataType}", command);
return;
}
if (!AllowedCodes.Contains(dataType))
{
_logger.LogInformation("Unknown data type {DataType}", dataType);
return;
}
int payLoad;
if (string.IsNullOrEmpty(value) || !int.TryParse(value, out payLoad))
{
_logger.LogInformation("Invalid payload format. Payload: {Payload}", value);
return;
}
var limits = CodeMinMax[dataType];
if (payLoad < limits.min || payLoad > limits.max)
{
_logger.LogInformation("Payload out of bounds. Payload: {Payload}, min: {Min}, max: {max}", payLoad, limits.min, limits.max);
return;
}
_deviceState.SetProperty(command, payLoad);
using (var scope = _serviceScopeFactory.CreateScope())
{
var hub = scope.ServiceProvider.GetService <IHubContext <MqttHub> >();
hub.Clients.All.SendAsync("Receive", device, command, value);
}
}
protected async override Task Handle(HandleMqttMessage request, CancellationToken cancellationToken)
{
_logger.LogInformation("Handling mqtt message. Topic {Topic}, Payload {Payload}", request.Topic, request.Payload);
var topics = request.Topic.Split('/');
// Topic format is devices/{deviceId}/{dataType}
if (topics.Length != 4)
{
_logger.LogInformation("Unsupported topic format. {Topic}", request.Topic);
return;
}
var deviceId = topics[1];
var dataTypeString = topics[3];
int dataType;
if (!int.TryParse(dataTypeString, out dataType))
{
_logger.LogInformation("Invalid format for data type {DataType}", dataTypeString);
return;
}
if (!AllowedCodes.Contains(dataType))
{
_logger.LogInformation("Unknown data type {DataType}", dataType);
return;
}
string payloadString = UTF8Encoding.UTF8.GetString(request.Payload);
int payLoad;
if (string.IsNullOrEmpty(payloadString) || !int.TryParse(payloadString, out payLoad))
{
_logger.LogInformation("Invalid payload format. Payload: {Payload}", payloadString);
return;
}
var limits = CodeMinMax[dataType];
if (payLoad < limits.min || payLoad > limits.max)
{
_logger.LogInformation("Payload out of bounds. Payload: {Payload}, min: {Min}, max: {max}", payLoad, limits.min, limits.max);
return;
}
var device = await _deviceRepository.Get(deviceId);
if (device is null)
{
_logger.LogInformation("No device with id {Id}", deviceId);
return;
}
var entry = new DeviceDataIncoming
{
DeviceId = device.Id,
DataType = dataType,
TimeStamp = DateTime.Now,
Value = payLoad
};
await _deviceDataIncomingRepository.Create(entry);
switch (dataType)
{
case 1000: device.InsideTemperature = payLoad; break;
case 1001: device.OutsideTemperature = payLoad; break;
case 1010: device.HasOutsideTemperatureSensor = payLoad == 0 ? false : true; break;
case 1011: device.OutsideTemperature = payLoad; break;
case 1020: device.OutsideTemperature = payLoad; break;
case 2000: device.OperationTimeInSec = payLoad; break;
case 2010: device.WorkingHour = payLoad; break;
case 4040: device.IsOperational = payLoad == 0 ? false : true; break;
case 4050: device.SilentMode = payLoad == 0 ? false : true; break;
case 8000: device.MachineIsBroken = payLoad == 0 ? false : true; break;
case 9000: device.SerialNumber = payLoad; break;
default: break;
}
await _deviceRepository.Update(device);
}