public void Execute()
{
var apple = new Product("Apple", Color.Green, Size.Small);
var tree = new Product("Tree", Color.Green, Size.Large);
var house = new Product("House", Color.Blue, Size.Large);
Product[] products = { apple, tree, house };
var filtrMngr = new FilterManager <Product>();
Console.WriteLine("Green products (new):");
foreach (var p in filtrMngr.Filter(products, new ColorSpecification(Color.Green)))
{
Console.WriteLine($" - {p.Name} is green");
}
Console.WriteLine("Large products");
foreach (var p in filtrMngr.Filter(products, new SizeSpecification(Size.Large)))
{
Console.WriteLine($" - {p.Name} is large");
}
Console.WriteLine("Large blue items");
foreach (var p in filtrMngr.Filter(products,
new AndSpecification <Product>(
new ColorSpecification(Color.Blue),
new SizeSpecification(Size.Large))))
{
Console.WriteLine($" - {p.Name} is big and blue");
}
}
// public void FindStocks()
// {
// Thread thread = new Thread(() => FindStocks(_settings.Filters));
// thread.Start();
// }
private void FindStocks(List <Filter> filters)
{
// UpdateStatus($"Filtering stocks by {filters.Count} filters");
IEnumerable <StockInfo> stocks = FilterManager.Filter(filters);
// UpdateStatus("Done");
Dispatcher.Invoke(() =>
{
grid.Items.Clear();
foreach (StockInfo stock in stocks)
{
grid.Items.Add(stock);
}
});
}
private void FindStocks(List <Filter> filters)
{
//string[] symbols = StockUtils.AllSymbols.ToArray();
//List<StockInfo> stocks = new List<StockInfo>();
//Dispatcher.Invoke(() => LblLoadProgress.Content = "Downloading Data");
//foreach (IEnumerable<string> batch in StockUtils.Split(symbols, 500))
//{
// string url = $"http://finance.yahoo.com/d/quotes.csv?s={string.Join(",", batch)}&f={"sl1r"}";
// WebRequest request = WebRequest.Create(url);
// request.Credentials = CredentialCache.DefaultCredentials;
// WebResponse response = request.GetResponse();
// Stream stream = response.GetResponseStream();
// string res = new StreamReader(stream).ReadToEnd();
// string[] lines = res.Split('\n');
// stocks.AddRange(
// lines.Take(lines.Length - 1)
// .TakeWhile(line => line != null)
// .Select(StockUtils.ParseCsvRow)
// .Select(
// vals =>
// new StockInfo()
// {
// Ticker = vals[0],
// LastTradePrice = NumberUtils.parseDouble(vals[1]),
// Pe = NumberUtils.parseDouble(vals[2])
// }));
//}
UpdateStatus($"Filtering stocks by {filters.Count} filters");
IEnumerable <StockInfo> stocks = FilterManager.Filter(filters);
UpdateStatus("Done");
Dispatcher.Invoke(() =>
{
// grid.DataContext = stocks;
//grid.Items.Refresh();
grid.Items.Clear();
foreach (StockInfo stock in stocks)
{
grid.Items.Add(stock);
}
});
}
