private static async void SendDeviceToCloudMessagesAsync(SIKData dataset)
{
var messageString = JsonConvert.SerializeObject(dataset);
var message = new Message(Encoding.ASCII.GetBytes(messageString));
await deviceClient.SendEventAsync(message);
}
// ConcurrentQueue listener
async Task StartBackgroundLoop()
{
CancellationTokenSource cancelToken = new CancellationTokenSource();
try
{
await Task.Run(
async() =>
{
SIKData SIKdata = new SIKData();
string data;
char[] braces = new char[] { '{', '}' };
while (true)
{
if (cq.TryDequeue(out data))
{
//Debug.WriteLine(string.Format("{0}**", data));
// Process into fields
SIKdata = await ProcessData(data.Trim(braces));
try
{
// Update local cache
Cache.Add(SIKdata);
CurrentRecordCache = (SIKDataViewModel)SIKdata;
RunOnGUI(() =>
{
SensorsLive.SIKdata = CurrentRecordCache;
});
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
}
try
{
// Store record as CSV via a datawriter to a stream. How to do with calls?
// await WriteSIKData(data);
// Post to IoT Hub if enabled by user
if (cloudFlag)
{
SendToCloud(SIKdata);
}
}
catch (Exception exf)
{
Debug.WriteLine(exf.Message);
}
}
}
}, cancelToken.Token
);
}
catch (OperationCanceledException)
{
}
}
void SendToCloud(SIKData SIKdata)
{
try
{
SendDeviceToCloudMessagesAsync(SIKdata);
this.state.cloudWire.Update(DataFlow.Active);
this.state.cloudWire.Update(WireState.Solid);
RunOnGUI(() =>
{
totalMessagesSent += 1;
this.state.messagesSent.Update(totalMessagesSent.ToString());
});
}
catch
{
state.cloudWire.Update(DataFlow.Stopped);
state.cloudWire.Update(WireState.Cut);
return;
}
}
async Task <SIKData> ProcessData(string data)
{
SIKData SIKdata = new SIKData();
//Debug.WriteLine(string.Format("{0}***", data));
try
{
string[] fields = data.Split(',');
foreach (string f in fields)
{
string[] keyData = f.Split(':');
switch (keyData[0])
{
// No processing for N = Satellite Id
case "I":
SIKdata.IR = Convert.ToInt32(keyData[1]);
break;
case "U":
SIKdata.UV = Convert.ToInt32(keyData[1]);
break;
case "V":
SIKdata.Visible = Convert.ToInt32(keyData[1]);
break;
case "T":
SIKdata.Temperature = Convert.ToInt32(keyData[1]);
break;
case "H":
SIKdata.Heading = Convert.ToInt32(keyData[1]);
SIKdata.ModifiedHeading = SIKdata.Heading - 46;
break;
case "X":
SIKdata.X = Convert.ToInt32(keyData[1]);
break;
case "Y":
SIKdata.Y = Convert.ToInt32(keyData[1]);
break;
case "Z":
SIKdata.Z = Convert.ToInt32(keyData[1]);
break;
case "P":
SIKdata.Pitch = Convert.ToInt32(keyData[1]);
break;
case "R":
SIKdata.Roll = Convert.ToInt32(keyData[1]);
break;
}
}
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
}
return(SIKdata);
}
