private StockHandle FindStock( StockDescriptor stockDescriptor )
{
using ( var tom = Engine.ServiceProvider.CreateEntityRepository() )
{
var tradedStock = tom.TradedStocks.FindTradedStockByDescription( stockDescriptor );
if ( tradedStock != null )
{
return new StockHandle( tradedStock );
}
var creator = new StockCreator();
return creator.Create( stockDescriptor );
}
}
// TODO: dublicate of Functions.Stocks.GetOrCreateStock() but we first need some
// kind of protocol (for user and developer) before we can remove this code here
public StockHandle Create( StockDescriptor stockDescriptor )
{
if ( stockDescriptor.Isin.IsNullOrTrimmedEmpty() )
{
throw new ArgumentException( "Isin not set" );
}
if ( stockDescriptor.StockExchange.IsNullOrTrimmedEmpty() )
{
throw new ArgumentException( "Stock exchange not set" );
}
myLogger.Notice( "Creating stock: {0}", stockDescriptor.Isin );
using ( var tom = Engine.ServiceProvider.CreateEntityRepository() )
{
var tradedStock = tom.TradedStocks.FindTradedStockByDescription( stockDescriptor );
if ( tradedStock != null )
{
var sh = new StockHandle( tradedStock );
myLogger.Info( "Stock already exists: Company = {0},Isin = {1}, Symbol = {2}, Exchange = {3}",
sh.Company.Name, stockDescriptor.Isin, sh.TradedStock.Symbol, stockDescriptor.StockExchange );
return sh;
}
// TODO: this is somehow duplicate code from StockHandle.GetOrCreate - remove StockHandle.GetOrCreate
// ok - so no traded stock available for the given description - but maybe a stock is already there?
var stock = tom.Stocks.FirstOrDefault( s => s.Isin == stockDescriptor.Isin );
if ( stock == null )
{
var companyName = stockDescriptor.Name;
if ( companyName.IsNullOrTrimmedEmpty() )
{
companyName = DatumLocatorDefinitions.Standing.CompanyName.FetchSingle<string>( stockDescriptor.Isin ).Value;
}
// company name is not uniq enough so lets create a new one
var company = new Company( companyName );
stock = new Stock( company, stockDescriptor.Isin );
}
// we got a stock so lets create a traded stock - we already checked that there is none
// but first we need a stockexchange
var se = tom.StockExchanges.FindBySymbolOrName( stockDescriptor.StockExchange );
if ( se == null )
{
throw new InvalidOperationException( "Could not find StockExchange by symbol or name with: " + stockDescriptor.StockExchange );
}
var symbol = stockDescriptor.Symbol;
if ( symbol.IsNullOrTrimmedEmpty() )
{
symbol = DatumLocatorDefinitions.Standing.StockSymbol.FetchSingle<string>( stockDescriptor.Isin ).Value;
}
var wpkn = DatumLocatorDefinitions.Standing.Wpkn.FetchSingle<string>( stockDescriptor.Isin ).Value;
tradedStock = new TradedStock( stock, se );
tradedStock.Symbol = symbol;
tradedStock.Wpkn = wpkn;
tom.TradedStocks.AddObject( tradedStock );
tom.SaveChanges();
myLogger.Info( "Created stock with: Company = {0},Isin = {1}, Symbol = {2}, Exchange = {3}",
stock.Company.Name, stock.Isin, symbol, stockDescriptor.StockExchange );
return new StockHandle( tradedStock );
}
}
public void Add( StockDescriptor stockDescriptor )
{
var stock = FindStock( stockDescriptor );
Add( stock );
}
