Optimize GainLossController

MarketData/MarketDataLib/Generator/ParityGenerator.cs

@@ -17,6 +17,37 @@ namespace MarketData.Generator
     private ParityGenerator()
     {
     }
+
+    /// <summary>
+    /// Given PortfolioTrades for a symbol and corresponding latestPrice gives us the breakeven element.
+    /// This call avoid calling the database.  Used by GetGainLossWithDetailByDate in the GainLossController
+    /// </summary>
+    /// <param name="symbolTrades"></param>
+    /// <param name="latestPrice"></param>
+    /// <returns></returns>
+    public static ParityElement GenerateBreakEven(PortfolioTrades symbolTrades,Price latestPrice)
+    {
+      try
+      {
+        ParityElement parityElement=new ParityElement();
+        Price zeroPrice=null;
+        if(null==symbolTrades||0==symbolTrades.Count)return null;
+        PortfolioTrades openTrades=symbolTrades.GetOpenTrades();
+        GainLossGenerator gainLossGenerator=new GainLossGenerator();
+        zeroPrice=ParityGenerator.GenerateGainLossValue(openTrades,latestPrice);
+        parityElement.ParityOffsetPrice=zeroPrice.Close;
+        parityElement.ParityOffsetPercent=((latestPrice.Close-zeroPrice.Close)/zeroPrice.Close);
+        parityElement.Symbol=latestPrice.Symbol;
+        parityElement.PricingDate=latestPrice.Date;
+        return parityElement;
+      }
+      catch(Exception exception)
+      {
+        MDTrace.WriteLine(LogLevel.DEBUG,String.Format("{0}",exception));
+        return null;
+      }
+    }
+
     public static ParityElement GenerateBreakEven(String symbol)
     {
       try