protected async override Task<SensorTelemetryData> ReadDataAsync()
{
SensorTelemetryData measure = new SensorTelemetryData();
if (this.Units == PressureUnits.kPa || this.Units == PressureUnits.Pa)
{
PressureGetPascalResult pResults = await this.consumer.GetPascalAsync();
measure.Value = this.Units == PressureUnits.kPa ? pResults.Pascal / 1000 : pResults.Pascal;
return measure;
}
else if (this.Units == PressureUnits.InchesOfMercury)
{
PressureGetInchesOfMercuryResult fResult = await this.consumer.GetInchesOfMercuryAsync();
measure.Value = fResult.InchesOfMercury;
return measure;
}else if (this.Units == PressureUnits.InchesOfMercury)
{
PressureGetMmOfMercuryResult fResult = await this.consumer.GetMmOfMercuryAsync();
measure.Value = fResult.MmOfMercury;
return measure;
}
throw new ArgumentException(String.Format("Unknown Units {0} for Pressure", Units));
}
/// <summary>
/// Send message to Azure Event Hub using HTTP/REST API
/// </summary>
/// <param name="message"></param>
public async void sendMeasure(SensorTelemetryData measure)
{
bool hasMutex = false;
try
{
hasMutex = mutex.WaitOne(1000);
if (hasMutex)
{
if (this.deviceClient == null)
InitIoTHubConnection();
measure = ApplySettingsToMeasure(measure);
string message = measure.ToJson();
var msgBytes = new Message(Encoding.UTF8.GetBytes(message));
await this.deviceClient.SendEventAsync(msgBytes);
Debug.WriteLine("Sent: {0}", message);
}
}
catch(Exception ex)
{
Debug.WriteLine("Exception when sending message:" + ex.Message);
}
finally
{
if (hasMutex)
{
mutex.ReleaseMutex();
}
}
}
protected async override Task<SensorTelemetryData> ReadDataAsync()
{
HumidityGetRHResult RHResult = await this.consumer.GetRHAsync();
SensorTelemetryData measure = new SensorTelemetryData();
measure.UnitOfMeasure = "RH%";
measure.Value = RHResult.RH;
return measure;
}
private SensorTelemetryData ApplySettingsToMeasure(SensorTelemetryData measure)
{
measure.displayname = this.localSettings.DisplayName;
measure.location = this.localSettings.Location;
measure.organization = this.localSettings.Organization;
return measure;
}
/// <summary>
/// Send message to Azure Event Hub using HTTP/REST API
/// </summary>
/// <param name="message"></param>
public async void sendMeasure(SensorTelemetryData measure)
{
measure = ApplySettingsToMeasure(measure);
string message = measure.ToJson();
if (this.EventHubConnectionInitialized)
{
try
{
HttpStringContent content = new HttpStringContent(message, Windows.Storage.Streams.UnicodeEncoding.Utf8, "application/json");
HttpResponseMessage postResult = await httpClient.PostAsync(uri, content);
if (postResult.IsSuccessStatusCode)
{
Debug.WriteLine("Message Sent: {0}", content);
}
else
{
Debug.WriteLine("Failed sending message: {0}", postResult.ReasonPhrase);
}
}
catch (Exception e)
{
Debug.WriteLine("Exception when sending message:" + e.Message);
}
}
}
