private static async Task SimulateData(CancellationToken ct)
{
var serializer = new DataContractJsonSerializer(typeof(TelemetryMessage));
var sensor = DeviceInfo.Sensors.FirstOrDefault(x => (x.DataType == Configuration[SensorDataTypeSetting]));
if (sensor == null)
{
throw new Exception($"No preconfigured Sensor for DataType '{Configuration[SensorDataTypeSetting]}' found.");
}
while (true)
{
if (ct.IsCancellationRequested)
{
break;
}
if (Math.Abs(_lastAmbientLightSent - _ambientLight) > double.Epsilon)
{
_lastAmbientLightSent = _ambientLight;
var telemetryMessage = new TelemetryMessage()
{
SensorId = sensor.Id,
SensorReading = _ambientLight.ToString(CultureInfo.InvariantCulture),
EventTimestamp = DateTime.UtcNow.ToString("o"),
SensorType = sensor.Type,
SensorDataType = sensor.DataType,
SpaceId = sensor.SpaceId
};
try
{
List <Task> tasks = new List <Task>();
using (var stream = new MemoryStream())
{
serializer.WriteObject(stream, telemetryMessage);
var binaryMessage = stream.ToArray();
Message eventMessage = new Message(binaryMessage);
eventMessage.Properties.Add("Sensor", "");
eventMessage.Properties.Add("MessageVersion", "1.0");
eventMessage.Properties.Add("x-ms-flighting-udf-execution-manually-enabled", "true");
Console.WriteLine(
$"\t{DateTime.UtcNow.ToLocalTime()}> Sending message: {Encoding.ASCII.GetString( binaryMessage )}");
tasks.Add(TopologyDeviceClient.SendEventAsync(eventMessage));
}
await Task.WhenAll(tasks);
}
catch (Exception ex)
{
Console.WriteLine($"Error occurred in {nameof( SimulateData )}: {ex}");
}
}
await Task.Delay(int.Parse(Configuration[MessageIntervalInMilliSecondsSetting]), ct);
}
}
private static async Task SimulateData(CancellationToken ct)
{
bool atLeastOneSensorMatchFound = false;
var serializer = new DataContractJsonSerializer(typeof(TelemetryMessage));
foreach (Sensor sensor in DeviceInfo.Sensors)
{
if (SensorInfosByDataType.ContainsKey(sensor.DataType))
{
atLeastOneSensorMatchFound = true;
break;
}
}
if (!atLeastOneSensorMatchFound)
{
throw new Exception(
$"No preconfigured Sensor found for any of the following datatypes: {string.Join( ", ", SensorInfosByDataType.Keys )}");
}
Console.WriteLine();
Console.WriteLine("Beginning to simulate data...");
Console.WriteLine();
while (true)
{
if (ct.IsCancellationRequested)
{
break;
}
foreach (Sensor sensor in DeviceInfo.Sensors)
{
if (!SensorInfosByDataType.TryGetValue(sensor.DataType, out SensorInfo sensorInfo))
{
continue;
}
if (sensorInfo.IsCurrentValueDifferent())
{
sensorInfo.UpdateLastValueSentWithCurrentValue();
var currentValue = sensorInfo.GetCurrentValue();
var telemetryMessage = new TelemetryMessage()
{
SensorId = sensor.Id,
SensorReading = currentValue.ToString(),
EventTimestamp = DateTime.UtcNow.ToString("o"),
SensorType = sensor.Type,
SensorDataType = sensor.DataType,
SpaceId = sensor.SpaceId,
IoTHubDeviceId = IoTHubDeviceId
};
try
{
List <Task> tasks = new List <Task>();
using (var stream = new MemoryStream())
{
serializer.WriteObject(stream, telemetryMessage);
var binaryMessage = stream.ToArray();
Message eventMessage = new Message(binaryMessage);
eventMessage.Properties.Add("Sensor", "");
eventMessage.Properties.Add("MessageVersion", "1.0");
eventMessage.Properties.Add("x-ms-flighting-udf-execution-manually-enabled", "true");
Console.WriteLine(
$"\t{DateTime.UtcNow.ToLocalTime()}> Sending message: {Encoding.ASCII.GetString( binaryMessage )}");
tasks.Add(TopologyDeviceClient.SendEventAsync(eventMessage));
}
await Task.WhenAll(tasks);
}
catch (Exception ex)
{
Console.WriteLine($"Error occurred in {nameof( SimulateData )}: {ex}");
}
}
}
await Task.Delay(int.Parse(Configuration[MessageIntervalInMilliSecondsSetting]), ct);
}
}