private static Task onDesiredPropertiesUpdate(TwinCollection desiredProperties, object userContext)
{
if (desiredProperties.Count == 0)
{
return(Task.CompletedTask);
}
try
{
Console.WriteLine("Desired property change:");
Console.WriteLine(JsonConvert.SerializeObject(desiredProperties));
var deviceClient = userContext as DeviceClient;
if (deviceClient == null)
{
throw new InvalidOperationException("UserContext doesn't contain " + "expected values");
}
var reportedProperties = new TwinCollection();
if (desiredProperties.Contains("interval") && desiredProperties["interval"] != null)
{
Interval = desiredProperties["interval"];
reportedProperties["interval"] = Interval;
}
if (desiredProperties.Contains("localhusturl") && !string.IsNullOrEmpty(desiredProperties["localhosturl"]))
{
LocalhostUrl = desiredProperties["localhosturl"];
reportedProperties["localhosturl"] = LocalhostUrl;
DataLoader = new DHTDataLoader(LocalhostUrl);
}
if (reportedProperties.Count > 0)
{
deviceClient.UpdateReportedPropertiesAsync(reportedProperties).ConfigureAwait(false);
}
}
catch (AggregateException ex)
{
foreach (Exception exception in ex.InnerExceptions)
{
Console.WriteLine();
Console.WriteLine("Error when receiving desired property: {0}", exception);
}
}
catch (Exception ex)
{
Console.WriteLine();
Console.WriteLine("Error when receiving desired property: {0}", ex.Message);
}
return(Task.CompletedTask);
}
private static async void ThreadBody(object userContext)
{
var url = LocalhostUrl;
Console.WriteLine($"Connecting to DHT sensor via url {url}");
DataLoader = new DHTDataLoader(url);
while (true)
{
var deviceClient = userContext as DeviceClient;
if (deviceClient == null)
{
throw new InvalidOperationException("UserContext doesn't contain " + "expected values");
}
var data = DataLoader.GetDHTData();
DHTMessageBody dhttMessageBody;
if (data == null)
{
Console.WriteLine("Error: Cannot read DHT Data from local machine");
}
else
{
dhttMessageBody = new DHTMessageBody
{
timeCreated = DateTime.Now.ToString("hh:mm:ss"),
humidity = data.Humidity,
temperature = data.Temperature
};
var jsonMessage = JsonConvert.SerializeObject(dhttMessageBody);
var pipeMessage = new Message(Encoding.UTF8.GetBytes(jsonMessage));
pipeMessage.Properties.Add("content-type", "application/json");
await deviceClient.SendEventAsync("output1", pipeMessage);
Console.WriteLine($"DHT data sent {dhttMessageBody.timeCreated}: {dhttMessageBody.temperature} | {dhttMessageBody.humidity}");
}
Thread.Sleep(Interval);
}
}
