private static void ConnectCallback(IAsyncResult ar)
{
// Signal the main thread to continue.
_connectSignal.Set();
if (_stopSignal)
{
return;
}
TcpListener listener = (TcpListener)ar.AsyncState;
TcpClient client = listener.EndAcceptTcpClient(ar);
//client.SendTimeout = 5000;
//client.ReceiveTimeout = 5000;
string remoteIP = client.Client.RemoteEndPoint.ToString().Split(':')[0];
try
{
Utils.Log("Get report submitted from " + remoteIP);
using (var socketStream = client.GetStream())
{
ReportInfo report = ReportSendReceiver.ReceiveReport(socketStream);
report.CallingIP = remoteIP;
HandleReport(report, socketStream);
}
client.Close();
}
catch (Exception ex)
{
Utils.Log("Exception when handle connection from {0}, error: {1}", remoteIP, ex.Message);
Utils.Log(ex.StackTrace);
}
}
private static void ThreadFunc(object ctx)
{
while (true)
{
try
{
if (_stopSignal)
{
break;
}
//1. get new pdf file
string pdfFile = QueryPdfFile();
if (string.IsNullOrEmpty(pdfFile))
{
Thread.Sleep(2000);
continue;
}
//2. start handle report
ReportInfo report = new ReportInfo();
report.PdfReport = File.ReadAllBytes(pdfFile);
report.Status = ReportStatus.SubmitInitial;
Utils.Log("Start to handle new report, id:{0}, path:{1}", report.Id, pdfFile);
bool reportDone = false;
do
{
TcpClient client = new TcpClient();
//client.SendTimeout = 5000;//5s
//client.ReceiveTimeout = 5000;//5s
client.Connect(IPAddress.Parse(ServerIP), ServerPort);//it will throw an exception if failed to connect.
using (NetworkStream socketStream = client.GetStream())
{
Utils.Log("Send report with status: " + report.Status);
ReportSendReceiver.SendReport(report, socketStream);
report = ReportSendReceiver.ReceiveReport(socketStream);
Utils.Log("Receive report with status: " + report.Status);
if (report.IsServerDone() || report.HasError())
{
reportDone = true;
}
else
{
_reportConfirmedSignal.Reset();
_reportToConfirm = report;
if (ReportSendEvent != null)
{
ReportSendEvent(new ReportSendEventArg()
{
HasError = false, Report = report, NeedConfirm = report.NeedConfirm()
});
}
_reportConfirmedSignal.WaitOne();
_reportToConfirm = null;
}
}
client.Close();
}while (!reportDone);
//4. clear work
if (ReportSendEvent != null)
{
ReportSendEvent(new ReportSendEventArg()
{
HasError = report.HasError(), Report = report, NeedConfirm = report.NeedConfirm()
});
}
Utils.Log("Report done with status: " + report.Status);
if (report.HasError())
{
//move to error report folder
Utils.Log("Report has error, will send to errorbox. error: " + report.ErrorMessage);
string targetFile = Path.Combine(PdfReportFolder, "Errorbox", Path.GetFileName(pdfFile));
File.Move(pdfFile, targetFile);
}
else
{
File.Delete(pdfFile);
}
}
catch (Exception ex)
{
if (ReportSendEvent != null)
{
ReportSendEvent(new ReportSendEventArg()
{
HasError = true, ErrorMessage = ex.Message
});
}
Utils.Log("Exception happen from Report Client main thread, message: " + ex.Message);
Utils.Log(ex.StackTrace);
Thread.Sleep(1000);
}
}
_isRunning = false;
Utils.Log("Report Client stopped");
}
private static void HandleReport(ReportInfo report, NetworkStream socket)
{
Utils.Log("Start handle report with status:{0}, id:{1}, thread:{2}", report.Status, report.Id, Thread.CurrentThread.ManagedThreadId);
if (report.Status == ReportStatus.SubmitInitial)
{
//save report
SaveReport(report);
string patientId = ParsePatientId(report);
report.PatientId = patientId;
Utils.Log("Try parse PatientId, and patientId is: " + patientId);
if (string.IsNullOrEmpty(patientId))
{
Utils.Log("Failed parse patientId, send to client to confirm");
report.Status = ReportStatus.FailedGetPatientId;
ReportSendReceiver.SendReport(report, socket);
return;
}
//check exist report
byte[] existReport = GetExistReport(patientId);
if (existReport != null)
{
Utils.Log("Patient already has report, send client to confirm");
report.PdfReportExist = existReport;
report.Status = ReportStatus.ConfirmExistReport;
ReportSendReceiver.SendReport(report, socket);
return;
}
//all is OK, let client confirm whether the patientId is correct.
Utils.Log("All is OK, send client to confirm");
report.Status = ReportStatus.ConfirmPatientId;
ReportSendReceiver.SendReport(report, socket);
}
else if (report.Status == ReportStatus.SubmitNewPatientId)
{
Utils.Log("Client changed patientId, the new patienId is: " + report.PatientId);
byte[] existReport = GetExistReport(report.PatientId);
if (existReport != null)
{
Utils.Log("Patient already has report, send client to confirm");
report.PdfReportExist = existReport;
report.Status = ReportStatus.ConfirmExistReport;
ReportSendReceiver.SendReport(report, socket);
return;
}
Utils.Log("Client confirmed OK, report handle finish!");
report.Status = ReportStatus.ConfirmOK;
if (ReportReceiveEvent != null)
{
ReportReceiveEventArg arg = new ReportReceiveEventArg();
arg.IsOverwriteExist = report.ExistReportAction == ExistReportAction.Overwrite;
arg.PatientId = report.PatientId;
arg.CallingIP = report.CallingIP;
arg.ReportPath = report.GetReportPath();
ReportReceiveEvent(arg);
}
ReportSendReceiver.SendReport(report, socket);
}
else if (report.Status == ReportStatus.SubmitOK)
{
Utils.Log("Client confirmed OK, report handle finish!");
report.Status = ReportStatus.ConfirmOK;
if (ReportReceiveEvent != null)
{
ReportReceiveEventArg arg = new ReportReceiveEventArg();
arg.IsOverwriteExist = report.ExistReportAction == ExistReportAction.Overwrite;
arg.PatientId = report.PatientId;
arg.CallingIP = report.CallingIP;
arg.ReportPath = report.GetReportPath();
ReportReceiveEvent(arg);
}
ReportSendReceiver.SendReport(report, socket);
}
}
