public async Task WriteStream(Stream stream, CitylineRequest request, IContext context, CancellationToken cancellationToken = default)
{
var queue = new Queue <ICitylineProducer>(_providers);
while (!cancellationToken.IsCancellationRequested)
{
if (queue.Count > 0)
{
var provider = queue.Dequeue();
var name = provider.Name;
TicketHolder ticket = null;
if (request.Tickets == null)
{
request.Tickets = new Dictionary <string, string>();
}
if (request.Tickets.ContainsKey(name))
{
ticket = new TicketHolder(request.Tickets[name]);
}
ticket = ticket ?? new TicketHolder();
#pragma warning disable 4014
Task.Run(async() =>
{
try {
await RunProducer(provider, stream, ticket, context, cancellationToken);
if (request.Tickets.ContainsKey(name))
{
request.Tickets[name] = ticket.AsString();
}
else
{
request.Tickets.Add(name, ticket.AsString());
}
} finally {
queue.Enqueue(provider);
}
}).ContinueWith(t =>
{
if (t.Exception != null)
{
throw t.Exception;
}
}, cancellationToken, TaskContinuationOptions.OnlyOnFaulted, TaskScheduler.Current)
.ConfigureAwait(false)
;
#pragma warning restore 4014
await Task.Delay(200);
}
await Task.Delay(200);
}
}
protected BaseCitylineWriter(SemaphoreSlim semaphore, ICitylineProducer provider, Stream stream, TicketHolder ticket, CancellationToken cancellationToken = default)
{
this.semaphore = semaphore;
this.provider = provider;
this.stream = stream;
this.stream = stream;
this.ticket = ticket;
this.cancellationToken = cancellationToken;
}
private void addTicketHoldedToEvent(TicketHolder newTicketHolder, String thisEvent)
{
foreach (ShowEvent e in eventList)
{
if (e.EventName.Equals(thisEvent))
{
e.TicketHolders.Add(newTicketHolder);
e.takeSeat(newTicketHolder.Seat);
}
}
}
private void makeHolder()
{
String ticketHolder = txtName.Text;
int age = Convert.ToInt16(txtAge.Text);
String seat = DropDownSeats.SelectedValue;
DropDownSeats.Items.Remove(seat);
lblTicketsAvailableNum.Text = Convert.ToString((Convert.ToInt16(lblTicketsAvailableNum.Text) - 1));
String thisEvent = DropDownEventsList.SelectedItem.Text;
TicketHolder newTicketHolder = new TicketHolder(ticketHolder, age, seat, thisEvent);
ticketHolders.Add(newTicketHolder);
addTicketHoldedToEvent(newTicketHolder, thisEvent);
txtName.Text = "";
txtAge.Text = "";
printEvents();
}
private async Task RunProducer(ICitylineProducer provider, Stream stream, TicketHolder ticket, IContext context, CancellationToken cancellationToken = default)
{
ICitylineWriter writer;
if (this.UseJson)
{
writer = new CitylineJsonWriter(semaphore, provider, stream, ticket, cancellationToken);
}
else
{
writer = new CitylineLineWriter(semaphore, provider, stream, ticket, cancellationToken);
}
// Func<object, Task> emitter = new Func<object, Task>(async obj =>
// {
// var value = JsonConvert.SerializeObject(obj, settings);
// try
// {
// await semaphore.WaitAsync(cancellationToken);
// using (var writer = new StreamWriter(stream, new UTF8Encoding(false), value.Length + 1024, true))
// {
// if (UseJson)
// await WriteJson(writer, value, provider, ticket, CancellationToken.None); // CancellationToken.None, we don't want partial messages
// else
// await WriteText(writer, value, provider, ticket, CancellationToken.None);
// }
// }
// finally
// {
// semaphore.Release();
// }
// });
// context is shared, so this wont work
var response = await provider.GetFrame(ticket, context, writer, cancellationToken);
if (response == null)
{
return;
}
await writer.Write(response);
}
public void Can_serialize_ticket()
{
////Arrange
var sample = new SampleClass {
Name = "bob"
};
var ticketHolder = new TicketHolder();
ticketHolder.UpdateTicket(sample);
var ticketSource = ticketHolder.AsString();
////Act
var result = new TicketHolder(ticketSource);
////Assert
var actualSample = result.GetTicket <SampleClass>();
Assert.AreEqual("bob", actualSample.Name);
}
private async Task RunProducer(ICitylineProducer provider, Stream stream, TicketHolder ticket, IContext context, CancellationToken cancellationToken = default)
{
var response = await provider.GetFrame(ticket, context, cancellationToken);
if (response == null)
{
return;
}
lock (padLock)
{
using (var writer = new StreamWriter(stream, new UTF8Encoding(false), 1024, true)) {
writer.WriteLine($"id: {ticket.AsString()}");
writer.WriteLine($"event: {provider.Name}");
writer.WriteLine($"data: {JsonConvert.SerializeObject(response, settings)}");
writer.WriteLine();
}
}
}
protected override async Task Write(TextWriter writer, string dataValue, ICitylineProducer provider, TicketHolder ticket, CancellationToken cancellationToken = default(CancellationToken))
{
using (var jsonWriter = new JsonTextWriter(writer)
{
Formatting = Formatting.None
})
{
await jsonWriter.WriteStartObjectAsync(cancellationToken);
await jsonWriter.WritePropertyNameAsync("id", cancellationToken);
await jsonWriter.WriteValueAsync(ticket.AsString(), cancellationToken);
await jsonWriter.WritePropertyNameAsync("event", cancellationToken);
await jsonWriter.WriteValueAsync(provider.Name, cancellationToken);
await jsonWriter.WritePropertyNameAsync("data", cancellationToken);
await jsonWriter.WriteValueAsync(dataValue, cancellationToken);
await jsonWriter.WriteEndObjectAsync(cancellationToken);
await writer.WriteAsync('\n');
}
}
public CitylineJsonWriter(SemaphoreSlim semaphore, ICitylineProducer provider, Stream stream, TicketHolder ticket, CancellationToken cancellationToken = default) : base(semaphore, provider, stream, ticket, cancellationToken)
{
}
protected abstract Task Write(TextWriter writer, string dataValue, ICitylineProducer provider, TicketHolder ticket, CancellationToken cancellationToken);
protected override async Task Write(TextWriter writer, string dataValue, ICitylineProducer provider, TicketHolder ticket, CancellationToken cancellationToken = default(CancellationToken))
{
await writer.WriteLineAsync($"id: {ticket.AsString()}");
await writer.WriteLineAsync($"event: {provider.Name}");
await writer.WriteLineAsync($"data: {dataValue}");
await writer.WriteLineAsync("");
}
public void CreateStudentTicket(string Name, string Number, int TicketNumber)
{
TicketHolder.TranslatesAutoresizingMaskIntoConstraints = false;
UIView Ticket = new UIView();
Ticket.BackgroundColor = UIColor.FromRGBA(21, 21, 30, 255);
Ticket.HeightAnchor.ConstraintEqualTo(160).Active = true;
Ticket.WidthAnchor.ConstraintEqualTo(UIScreen.MainScreen.Bounds.Width).Active = true;
UILabel StudentName = new UILabel();
// StudentName.LineBreakMode = UILineBreakMode.Clip;
StudentName.Text = Name;
StudentName.TextColor = UIColor.White;
StudentName.Font.WithSize(40);
Ticket.AddSubview(StudentName);
UILabel StudentNumber = new UILabel();
StudentNumber.Text = Number;
StudentNumber.TextColor = UIColor.White;
StudentNumber.Font.WithSize(40);
Ticket.AddSubview(StudentNumber);
TicketHolder.AddArrangedSubview(Ticket);
UIImageView ImageView = new UIImageView();
ImageView.BackgroundColor = UIColor.Black;
ImageView.ContentMode = UIViewContentMode.ScaleAspectFit;
ImageView.Image = UIImage.FromBundle("GoingPro_Icon.png");
ImageView.Frame = new CoreGraphics.CGRect(15, 15, 50, 50);
StudentName.Frame = new RectangleF(75, 18, 500, 20);
StudentNumber.Frame = new RectangleF(75, 36, 90, 20);
Ticket.AddSubview(ImageView);
UIDropDown DropDown = new UIDropDown(Ticket, View, new List <string>()
{
"Showing Responsibility",
"Showing Respect",
"Demonstrating Initiative",
"Being Safe",
"Demonstrating Professionalism"
}, new CoreGraphics.CGRect(25, 85, TicketHolder.Bounds.Width - 65, 30), Scroll, TicketNumber, this);
UIDropDown DropDown2 = new UIDropDown(Ticket, View, new List <string>()
{
"KTC",
"MySchool",
"KCTC",
"KIH",
}, new CoreGraphics.CGRect(25, 120, 100, 30), Scroll, TicketNumber, this);
UIDropDown DropDown3 = new UIDropDown(Ticket, View, new List <string>()
{
"Classrooms",
"Parking Lot",
"Vending Machines",
"Commons",
}, new CoreGraphics.CGRect(182, 120, 100, 30), Scroll, TicketNumber, this);
DropDown2.OptionSelected += (e) =>
{
Console.WriteLine("Here " + e);
DropDown3.Options = BLL[e].ToList();
DropDown3.GenerateNewOptions();
return(null);
};
LayoutSpinner.Add(TicketNumber, new List <UIDropDown>()
{
DropDown, DropDown2, DropDown3
});
NumberOfTickets += 1;
}
public async Task DoWriteStream(Stream stream, CitylineRequest request, IContext context, CancellationToken cancellationToken = default)
{
ConcurrentDictionary <Task, object> tasks = new ConcurrentDictionary <Task, object>();
var queue = new ConcurrentQueue <ICitylineProducer>(_providers);
while (!cancellationToken.IsCancellationRequested)
{
if (queue.Count > 0)
{
if (!queue.TryDequeue(out ICitylineProducer provider))
{
continue;
}
var name = provider.Name;
TicketHolder ticket = null;
if (request.Tickets == null)
{
request.Tickets = new Dictionary <string, string>();
}
if (request.Tickets.ContainsKey(name))
{
ticket = new TicketHolder(request.Tickets[name]);
}
ticket = ticket ?? new TicketHolder();
#pragma warning disable 4014
tasks.TryAdd(Task.Run(async() =>
{
try
{
var ownSource = new CancellationTokenSource();
cancellationToken.Register(ownSource.Cancel);
await RunProducer(provider, stream, ticket, context, ownSource.Token);
if (request.Tickets.ContainsKey(name))
{
request.Tickets[name] = ticket.AsString();
}
else
{
request.Tickets.Add(name, ticket.AsString());
}
}
catch (Exception ex) {
_logger.WriteLine($"Producer {provider.Name} failed: {ex}");
}
finally
{
queue.Enqueue(provider);
}
}).ContinueWith(task =>
{
_logger.WriteLine($"Task failed for {provider.Name} failed: {task.Exception}");
if (task.Exception != null)
{
throw task.Exception;
}
}, cancellationToken, TaskContinuationOptions.OnlyOnFaulted, TaskScheduler.Current)
.ContinueWith(task => tasks.TryRemove(task, out object value)), null);
#pragma warning restore 4014
}
await Task.Delay(200, cancellationToken);
}
await Task.WhenAll(tasks.Keys);
}
