public void OnTick(object source, ElapsedEventArgs e)
{
TraderContext db = new TraderContext();
List<Quote> quotes = db.Quotes.Include("Symbol").Where(x => x.timestamp > _lastPeek).OrderBy(y => y.timestamp).ToList<Quote>();
_lastPeek = quotes.Max(x => x.timestamp);
List<QuoteMessage> msg = new List<QuoteMessage>();
foreach (Quote q in quotes)
{
msg.Add(new QuoteMessage(q));
}
_owner.NewQuotes(msg);
db.Dispose();
}
static void Main(string[] args)
{
Console.WriteLine("Testing the entity framework...");
TraderContext db = new TraderContext();
Console.WriteLine("Clearing the database...");
var d_quotes = from q in db.Quotes select q;
foreach (var i in d_quotes) db.Quotes.Remove(i);
var d_symbol = from s in db.Symbols select s;
foreach (var i in d_symbol) db.Symbols.Remove(i);
var d_position = from p in db.Positions select p;
foreach (var i in d_position) db.Positions.Remove(i);
var d_trade = from t in db.Trades select t;
foreach (var i in d_trade) db.Trades.Remove(i);
Console.WriteLine("Adding records to database...");
db.Symbols.Add(new Symbol("GOOG"));
db.Symbols.Add(new Symbol("LNC"));
db.SaveChanges();
Quote q1 = new Quote();
q1.timestamp = DateTime.Now;
q1.price = 50.47;
q1.Symbol = db.Symbols.First();
db.Quotes.Add(q1);
Position p1 = new Position();
p1.SymbolName = "GOOG";
p1.price = 5000;
p1.quantity = 150;
p1.status = positionStatus.Open;
db.Positions.Add(p1);
db.SaveChanges();
Trade t1 = new Trade();
t1.timestamp = DateTime.Now;
t1.quantity = 40;
t1.price = 10.10;
t1.type = tradeTypes.Buy;
t1.SymbolName = "GOOG";
db.Trades.Add(t1);
var q_addtopos = from p in db.Positions.Include("Trades") where p.SymbolName == "GOOG" select p;
Position goog_pos = q_addtopos.FirstOrDefault();
goog_pos.Trades.Add(t1);
db.SaveChanges();
WatchList w = new WatchList();
w.ListName = "Default";
db.WatchLists.Add(w);
db.SaveChanges();
WatchListItem wi1 = new WatchListItem();
wi1.ListName = "Default";
wi1.SymbolName = "GOOG";
db.WatchListItems.Add(wi1);
WatchListItem wi2 = new WatchListItem();
wi2.ListName = "Default";
wi2.SymbolName = "LNC";
db.WatchListItems.Add(wi2);
db.SaveChanges();
Console.WriteLine("Retrieving records from database...");
Console.WriteLine("\nSymbols");
var query = from s in db.Symbols orderby s.name select s;
foreach (var i in query)
{
Console.WriteLine("Symbol: " + i.name);
}
Console.WriteLine("\nQuotes");
var q_search = from q in db.Quotes select q;
foreach (var i in q_search)
{
Console.WriteLine("Record: " + i.QuoteId.ToString());
Console.WriteLine("Symbol: " + i.Symbol.name);
Console.WriteLine("Timestamp: " + i.timestamp.ToString());
Console.WriteLine("Price: " + i.price.ToString());
}
Console.WriteLine("\nPositions");
var p_search = from p in db.Positions select p;
foreach (var i in p_search)
{
Console.WriteLine("Record: " + i.PositionId.ToString());
Console.WriteLine("Symbol: " + i.Symbol.name);
Console.WriteLine("Trade count: " + i.Trades.Count.ToString());
foreach (var t in i.Trades)
{
Console.WriteLine("\tTrade Id: " + t.TradeId.ToString());
Console.WriteLine("\tType: " + t.type.ToString());
Console.WriteLine("\tPrice: " + t.price.ToString());
Console.WriteLine("\tQuantity: " + t.quantity.ToString());
Console.WriteLine("\tTimestamp: " + t.timestamp.ToString());
}
}
Console.WriteLine("\nWatchlist");
var wlist = from l in db.WatchLists.Include("Items") select l;
WatchList deflist = wlist.FirstOrDefault();
foreach (var i in deflist.Items)
{
Console.WriteLine("\t" + i.Symbol.name);
}
Console.WriteLine("\nTesting complete.");
Console.ReadLine();
db.Dispose();
}
