private static void Main(string[] args)
{
var shoppy = new Shoppy();
shoppy.TestShoppy();
return;
;
var stockTicker = new StockTicker();
var stockListner = new RxStockMonitor(stockTicker);
ThreadPool.QueueUserWorkItem((_)=>stockTicker.Notify(new StockTick() { Price = 100, QuoteSymbol = "MSFT" }));
ThreadPool.QueueUserWorkItem((_)=>stockTicker.Notify(new StockTick() { Price = 150, QuoteSymbol = "INTC" }));
ThreadPool.QueueUserWorkItem((_)=>stockTicker.Notify(new StockTick() { Price = 170, QuoteSymbol = "MSFT" }));
ThreadPool.QueueUserWorkItem((_)=>stockTicker.Notify(new StockTick() { Price = 195.5M, QuoteSymbol = "MSFT" }));
while (true)
{
Console.Write("enter symbol: ");
var symbol = Console.ReadLine();
if (symbol.ToLower() == "x")
{
break;
}
Console.WriteLine("enter value: ");
var val = decimal.Parse(Console.ReadLine());
for (int i = 0; i < 30; i++)
{
int i1 = i;
Task.Run(() => stockTicker.Notify(new StockTick() { Price = val, QuoteSymbol = symbol + i1 }));
}
}
Console.WriteLine("Bye Bye");
}
private static void ManualSimulator(StockTicker stockTicker)
{
//////////////////////////////////////////////////////
// A small program to let you enter the Ticks info. //
// Symbol X will exit the program //
//////////////////////////////////////////////////////
while (true)
{
Console.Write("enter symbol (or x to exit): ");
var symbol = Console.ReadLine();
if (symbol.ToLower() == "x")
{
break;
}
Console.WriteLine("enter price: ");
decimal price;
if (decimal.TryParse(Console.ReadLine(), out price))
{
stockTicker.Notify(new StockTick() { Price = price, QuoteSymbol = symbol });
}
else
{
Console.WriteLine("price should be decimal");
}
}
}
private static void TestConcurrentTicks(StockTicker stockTicker)
{
ThreadPool.QueueUserWorkItem((_) => stockTicker.Notify(new StockTick() {Price = 100, QuoteSymbol = "MSFT"}));
ThreadPool.QueueUserWorkItem((_) => stockTicker.Notify(new StockTick() {Price = 150, QuoteSymbol = "INTC"}));
ThreadPool.QueueUserWorkItem((_) => stockTicker.Notify(new StockTick() {Price = 170, QuoteSymbol = "MSFT"}));
ThreadPool.QueueUserWorkItem((_) => stockTicker.Notify(new StockTick() {Price = 195.5M, QuoteSymbol = "MSFT"}));
}
private static void Main(string[] args)
{
//
// Uncomment the StockTicker version you wish to test
//
var stockTicker = new StockTicker();
//var stockTicker = new RxStockMonitor(stockTicker);
//
// Uncomment to test the case of Concurrent Ticks
//
//TestConcurrentTicks(stockTicker);
// A small program to let you enter the Ticks info.
// Symbol X will exit the program
while (true)
{
Console.Write("enter symbol: ");
var symbol = Console.ReadLine();
if (symbol.ToLower() == "x")
{
break;
}
Console.WriteLine("enter value: ");
var val = decimal.Parse(Console.ReadLine());
for (int i = 0; i < 30; i++)
{
int i1 = i;
Task.Run(() => stockTicker.Notify(new StockTick() { Price = val, QuoteSymbol = symbol + i1 }));
}
}
Console.WriteLine("Bye Bye");
}
public StockSimulator(StockTicker ticker)
{
_ticker = ticker;
_ticks = new[]
{
new StockTick() {QuoteSymbol = "MSFT", Price = 53.49M},
new StockTick() {QuoteSymbol = "INTC", Price = 32.68M},
new StockTick() {QuoteSymbol = "ORCL", Price = 41.48M},
new StockTick() {QuoteSymbol = "CSCO", Price = 28.33M},
};
}
private static void Main(string[] args)
{
var stockTicker = new StockTicker();
/////////////////////////////////////////////////////////////
// //
// 1. Uncomment the StockMonitor version you wish to test //
// //
/////////////////////////////////////////////////////////////
// Regular events StockMonitor
var stockMonitor = new StockMonitor(stockTicker);
// Rx StockMonitor
//var stockMonitor = new RxStockMonitor(stockTicker);
//////////////////////////////////////////////////////////////////
// //
// 2. (optional) Uncomment to test the case of Concurrent Ticks //
// //
//////////////////////////////////////////////////////////////////
//TestConcurrentTicks(stockTicker);
//////////////////////////////////////////////////////
// A small program to let you enter the Ticks info. //
// Symbol X will exit the program //
//////////////////////////////////////////////////////
while (true)
{
Console.Write("enter symbol (or x to exit): ");
var symbol = Console.ReadLine();
if (symbol.ToLower() == "x")
{
break;
}
Console.WriteLine("enter price: ");
decimal price;
if (decimal.TryParse(Console.ReadLine(), out price))
{
stockTicker.Notify(new StockTick() {Price = price, QuoteSymbol = symbol});
}
else
{
Console.WriteLine("price should be decimal");
}
}
GC.KeepAlive(stockMonitor);
Console.WriteLine("Bye Bye");
}
public RxStockMonitor(StockTicker ticker)
{
const decimal maxChangeRatio = 0.1m;
IObservable<StockTick> ticks =
Observable.FromEventPattern<EventHandler<StockTick>, StockTick>(
h => ticker.StockTick += h, //#A
h => ticker.StockTick -= h) //#B
.Select(tickEvent => tickEvent.EventArgs)
.Synchronize();
IObservable<IGroupedObservable<string, StockTick>> groupedTicks =
ticks.GroupBy(tick => tick.QuoteSymbol);
var drasticChanges =
from tick in ticks
group tick by tick.QuoteSymbol
into company
from tickPair in company.Buffer(2, 1)
let changeRatio = Math.Abs((tickPair[1].Price - tickPair[0].Price)/tickPair[0].Price)
where changeRatio > maxChangeRatio
select new DrasticChange()
{
Symbol = company.Key,
ChangeRatio = changeRatio,
OldPrice = tickPair[0].Price,
NewPrice = tickPair[1].Price
};
_subscription =
drasticChanges.Subscribe(change =>
{
Console.WriteLine("Stock:{0} has changed with {1} ratio, Old Price:{2} New Price:{3}", change.Symbol,
change.ChangeRatio,
change.OldPrice,
change.NewPrice);
},
ex => { /* code that handles erros */}, //#C
() =>{/* code that handles the observable completenss */}); //#C
}
private static void Main(string[] args)
{
_stockTicker = new StockTicker();
/////////////////////////////////////////////////////////////
// //
// 1. Uncomment the StockMonitor version you wish to test //
// //
/////////////////////////////////////////////////////////////
// Regular events StockMonitor
//var stockMonitor = new StockMonitor(_stockTicker);
// Rx StockMonitor - uses Rx to consume and process the stock ticks
var stockMonitor = new RxStockMonitor(_stockTicker);
ShowMenu();
GC.KeepAlive(stockMonitor);
Console.WriteLine("Press <enter> to continue...");
Console.ReadLine();
Console.WriteLine("Bye Bye");
}
private static void AutomaticSimulator(StockTicker stockTicker)
{
var simulator = new StockSimulator(stockTicker);
simulator.Run();
}
object _stockTickLocker = new object(); //#A
#endregion Fields
#region Constructors
public StockMonitor(StockTicker ticker)
{
_ticker = ticker;
//var stockTicker = new StockTicker();
ticker.StockTick += OnStockTick;
}
public StockMonitor(StockTicker ticker)
{
_ticker = ticker;
ticker.StockTick += OnStockTick;
}
public StockMonitor(StockTicker ticker)
{
_ticker = ticker;
//var stockTicker = new StockTicker();
ticker.StockTick += OnStockTick;
}
public StockMonitor(StockTicker ticker)
{
_ticker = ticker;
_ticker.StockTick += OnStockTick;
}
private static void AutomaticSimulator(StockTicker stockTicker)
{
var simulator = new StockSimulator(stockTicker);
simulator.Run();
}