private static void IndicatorScannerSerialPort_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
var strMessage = mIndicatorScannerSerialPort.ReadString();
if (strMessage == string.Empty || strMessage == null )
return;
Debug.Print("The type of data expected is: " + mMenu.DataRecieved.GetName());
Debug.Print("Data contents recieved from the Serial Port:\r\n" + strMessage);
switch (mMenu.DataRecieved)
{
case RecievedData.ScaleIndicator:
var objIndicatorData = new IndicatorData(strMessage);
if (objIndicatorData.HasValidDataString)
{
Debug.Print("Valid Data was sent from the Indicator...");
Settings.NetWeight = objIndicatorData.NetWeight;
if (mMenu.MenuSelection == MenuSelection.ViewPieceCount)
mMenu.DisplayInformation(Settings);
else
{
/*A new thread must be started in order for the WebGet function to work properly; otherwise WebGet(objIndicatorData) would just silently fail...
* http://www.codeproject.com/Articles/795829/Multithreading-with-Netduino-and-NET-Microframework
* https://www.youtube.com/watch?v=YZOrORB88-s */
var DataRequestThread = new Thread(delegate() { WebGet(objIndicatorData); });
DataRequestThread.Start();
}
}
break;
case RecievedData.ScannerJobAndSuffix:
Settings.JobNumber = strMessage;
Settings.StoreJobNumber();
mMenu.DataRecieved = RecievedData.None;
mMenu.DisplayInformation(Settings);
break;
case RecievedData.ScannerOperation:
Settings.Operation = strMessage;
Settings.StoreOperationNumber();
mMenu.DataRecieved = RecievedData.None;
mMenu.DisplayInformation(Settings);
break;
}
}
public static void WebGet(IndicatorData objIndicatorData)
{
try
{
var URL = Settings.ShopTrakTransactionsURL.SetParameters(new string[] { Settings.Job, Settings.Suffix.ToString(), Settings.Operation.ToString() });
Debug.Print("WebGet URL is: " + URL);
var objURI = new Uri(URL);
var webClient = new HTTP_Client(new IntegratedSocket(objURI.Host, (ushort)objURI.Port));
var response = webClient.Get(objURI.AbsolutePath);
Debug.Print("Data recieved from URL is:\r\n" + response.ResponseBody);
if (response.ResponseCode != 200) // Did we get the expected response? (a "200 OK")
throw new ApplicationException("HTTP Response: " + response.ResponseCode.ToString());
else if (response.ResponseBody == "[]") //Does the REST Dataset return empty?
throw new ApplicationException("Nobody punched in that Job.");
ArrayList arrayList = JsonSerializer.DeserializeString(response.ResponseBody) as ArrayList;
Hashtable hashtable = arrayList[0] as Hashtable; //get the first row of records
//Microsoft.SPOT.Time.TimeService.SetTimeZoneOffset(300);
Settings.PrintDateTime = DateTimeExtensions.FromASPNetAjax(hashtable["CurrentDateTime"].ToString()).AddHours(-5);//Central Time Zone has 5 hour offset from UTC
Settings.Item = hashtable["item"].ToString();
StringBuilder strBldrEmployees = new StringBuilder();
for (int intCounter = 0; intCounter < arrayList.Count; intCounter++) //iterate over all the rows to get the employees that are punched into the jobs
{
hashtable = arrayList[intCounter] as Hashtable;
strBldrEmployees.Append(hashtable["emp_num"].ToString().Trim() + ",");
}
strBldrEmployees.Remove(strBldrEmployees.ToString().LastIndexOf(","), 1); //remove the last comma from the string
Settings.Employees = strBldrEmployees.ToString();
//Instantiate my label so that I can populate the Format property with the value pulled from the SDCard.
var objLabel = new Label(new string[] { Settings.Item, Settings.JobNumber, Settings.OperationNumber.ToString("D3"), Settings.Employees,
Settings.PieceCount.ToString("N"), Settings.PrintDateTime.ToString("MM/dd/yy h:mm:ss tt"), Settings.PrintDateTime.ToString("dddd") });
objLabel.LabelFormat = Settings.LabelFormat;
Debug.Print("Data written to printer serial port is:\r\n" + objLabel.LabelText);
mPrinterSerialPort.WriteString(objLabel.LabelText);
}
catch (Exception objEx)
{
Debug.Print("Exception caught in WebGet()\r\n");
Debug.Print(objEx.Message);
mMenu.DisplayError(objEx);
}
}