ParseDataStream(
InputByteArray inputArray, SessionSettings sessionSettings,
string DataStreamName, TypeTelnetDevice?TypeDevice = null)
{
var accumCmdList = new WorkstationCommandList();
var responseItemList = new ResponseItemList();
TelnetCommandList telList = null;
ResponseHeader curRespHeader = null;
ResponseHeader nextRespHeader = null;
DataStreamHeader dsh = null;
ControlFunctionList funcList = null;
bool didParse = true;
while ((didParse == true) && (inputArray.RemainingLength > 0))
{
didParse = false;
curRespHeader = nextRespHeader;
nextRespHeader = null;
if ((didParse == false) && (dsh == null))
{
var telCmd = inputArray.NextTelnetCommand();
if (telCmd != null)
{
if (telList == null)
{
telList = new TelnetCommandList();
}
telList.Add(telCmd);
var s1 = telCmd.ToString();
didParse = true;
}
}
// parse the data stream header.
if ((didParse == false) && (dsh == null))
{
var code = inputArray.PeekDataStreamCode();
if (code != null)
{
var rv = DataStreamHeader.Factory(inputArray);
dsh = rv.Item1;
didParse = true;
// update the type of device depending on data stream header stream
// code.
if ((TypeDevice == null) && (dsh != null) && (dsh.Errmsg == null))
{
TypeDevice = dsh.StreamCode.ToTypeTelnetDevice();
}
}
}
// parse as a sequence of workstation commands.
if (didParse == false)
{
if ((TypeDevice == null) || (TypeDevice.Value != TypeTelnetDevice.Printer))
{
var rv = Process5250.ParseWorkstationCommandList(
inputArray, sessionSettings);
var anotherDsh = rv.Item1;
var wrkstnCmdList = rv.Item2;
if ((anotherDsh != null) && (anotherDsh.Errmsg == null))
{
didParse = true;
dsh = anotherDsh;
}
// draw the fields and literals on the canvas.
if (wrkstnCmdList?.Count > 0)
{
accumCmdList.Append(wrkstnCmdList);
didParse = true;
}
}
}
// parse as sequence of SCS control functions. ( printer data stream ).
if (didParse == false)
{
if ((TypeDevice == null) || (TypeDevice.Value == TypeTelnetDevice.Printer))
{
var rv = ControlFunctionList.ParseDataStream(inputArray);
if (rv.Item1?.Count > 0)
{
didParse = true;
funcList = rv.Item1;
}
}
}
// parse as response stream header.
if ((didParse == false) &&
(ResponseHeader.IsResponseHeader(inputArray).Item1 == true))
{
curRespHeader = new ResponseHeader(inputArray);
didParse = true;
responseItemList.Add(curRespHeader);
var rv = Response5250.ParseResponseStream(inputArray, curRespHeader);
responseItemList.Append(rv.Item1);
}
}
return(new Tuple <WorkstationCommandList, ResponseItemList,
DataStreamHeader, TelnetCommandList, ControlFunctionList>(
accumCmdList, responseItemList, dsh, telList, funcList));
}
private OpenPdfDocument PrintToPdf(
DataStreamHeader dsh, ControlFunctionList funcList,
OpenPdfDocument OpenDoc = null)
{
OpenPdfDocument openDoc = OpenDoc;
if (dsh is StartPrinterFileDataStreamHeader)
{
var docPath = "c:\\downloads\\printout.pdf";
openDoc = new OpenPdfDocument(docPath);
}
else if (dsh is PrinterDataStreamHeader)
{
if (openDoc == null)
{
var docPath = "c:\\downloads\\printout.pdf";
openDoc = new OpenPdfDocument(docPath);
}
if (funcList != null)
{
foreach (var func in funcList)
{
if (func.ControlCode == ControlFunctionCode.CarriageReturn)
{
openDoc.ApplyCarriageReturn();
}
else if (func.ControlCode == ControlFunctionCode.NewLine)
{
openDoc.ApplyNewLine();
}
else if (func.ControlCode == ControlFunctionCode.PresentationPosition)
{
var presentPos = func as PresentationPositionControlFunction;
if (presentPos.Direction == PresentationPositionDirection.Horizontal)
{
openDoc.ApplyPos(presentPos.PositionValue - 1);
}
}
else if (func.ControlCode == ControlFunctionCode.Text)
{
var textFunc = func as TextControlFunction;
openDoc.ApplyText(textFunc.TextBytes.EbcdicBytesToString());
}
else if ((func.ControlCode == ControlFunctionCode.Undocumented2) ||
(func.ControlCode == ControlFunctionCode.Undocumented3))
{
openDoc.ApplyText(" ");
}
else if (func.ControlCode == ControlFunctionCode.FormFeed)
{
openDoc.ApplyNewPage();
}
}
if (funcList.IsSingleNullList() == true)
{
openDoc.CloseDoc();
openDoc = null;
}
}
}
return(openDoc);
}
