private void IncrementProgress(SynchronizationContext sync, SendingProgressForm form)
{
SendOrPostCallback c = (state) =>
{
form.Increment();
};
sync.Post(c, null);
}
private void StopProgressOnCancel(SynchronizationContext sync, SendingProgressForm form)
{
SendOrPostCallback c = (state) =>
{
MessageBox.Show("Cancelled");
form.Close();
};
sync.Post(c, null);
}
private void CompleteProgress(SynchronizationContext sync, SendingProgressForm form)
{
SendOrPostCallback c = (state) =>
{
form.To100();
MessageBox.Show("Completed");
form.Close();
};
sync.Post(c, null);
}
private SendingProgressForm ShowProgressForm(SynchronizationContext sync, int itemsCount, CancellationTokenSource tokenSource)
{
SendingProgressForm form = new SendingProgressForm(itemsCount);
SendOrPostCallback c = (state) =>
{
EventHandler cancelHandler = (o, args) =>
{
tokenSource.Cancel();
};
form.SetCancelClickAction(cancelHandler);
form.Show();
};
sync.Post(c, null);
return(form);
}
private void buttonTransmit_Click(object sender, EventArgs e)
{
System.Runtime.GCSettings.LatencyMode = GCLatencyMode.LowLatency;
if (activitiesTempStorage == null)
{
MessageBox.Show("There's nothing to transmit");
return;
}
DisableFilterBox();
DisableButtons();
var sync = SynchronizationContext.Current;
if (!this.sender.Authorized && e.GetType() != typeof(LoginPasswordEventArgs))
{
Task.Factory.StartNew(() =>
{
LoginWithForm(sync);
});
return;
}
string login = string.Empty, password = string.Empty;
if (!this.sender.Authorized)
{
login = (e as LoginPasswordEventArgs).Login;
password = (e as LoginPasswordEventArgs).Password;
if (login == string.Empty || password == string.Empty)
{
EnableButtons();
EnableFilterBox();
return;
}
}
Task authorizationTask = new Task(() =>
{
if (!this.sender.Authorized) // after first 'if' data was obtained as EventArgs
{
HttpStatusCode authorizationStatusCode;
bool success;
try
{
success = this.sender.Authorize(login, password, out authorizationStatusCode);
}
catch (WebException ex)
{
MessageBox.Show($"An error occured while authorization\n{ex.Message}");
return;
}
if (!success)
{
int authCode = (int)authorizationStatusCode;
MessageBox.Show($"Authorization failed. Code {authCode}: {authorizationStatusCode}");
EnableButtonsFromAnotherTask(sync);
EnableFilterBoxFromAnotherTask(sync);
}
}
});
authorizationTask.Start();
authorizationTask.Wait();
if (!this.sender.Authorized)
{
return;
}
Task <List <Report> > splittingActivitiesListTask = new Task <List <Report> >(() =>
{
List <Report> r = new List <Report>();
while (activitiesTempStorage.Count > 0)
{
var a = activitiesTempStorage.Take(activitiesToSendAtOneTime).ToList();
r.Add(new Report()
{
Activities = a
});
activitiesTempStorage.RemoveRange(0, a.Count);
}
return(r);
});
splittingActivitiesListTask.Start();
List <Report> reports = splittingActivitiesListTask.Result;
var tokenSource = new CancellationTokenSource();
var cancellation = tokenSource.Token;
SendingProgressForm sendingProgressForm = ShowProgressForm(sync, reports.Count, tokenSource);
Task sendingTask = new Task((token) =>
{
CancellationToken cancellationToken = (CancellationToken)token;
while (reports.Any())
{
cancellationToken.ThrowIfCancellationRequested();
var report = reports.First();
HttpStatusCode sendStatusCode;
string result;
try
{
result = this.sender.SendActivities(report, out sendStatusCode);
}
catch (Exception ex)
{
MessageBox.Show($"An error occured while sending activities\n{ex.Message}");
return;
}
int code = (int)sendStatusCode;
if (sendStatusCode == HttpStatusCode.Created)
{
reports.Remove(report);
IncrementProgress(sync, sendingProgressForm);
}
}
processor.MarkRegistriesAsProcessed(activitiesTempStorage.RegistriesIds);
},
cancellation, TaskCreationOptions.LongRunning);
Task continuation = sendingTask.ContinueWith((obj) =>
{
if (cancellation.IsCancellationRequested)
{
StopProgressOnCancel(sync, sendingProgressForm);
}
else
{
CompleteProgress(sync, sendingProgressForm);
}
activitiesTempStorage = null;
EnableFilterBoxFromAnotherTask(sync);
EnableButtonsFromAnotherTask(sync);
ClearDataFromAnotherTask(sync);
});
sendingTask.Start();
}