From 8371775411ce92f78df6bcf85b89096b0939b611 Mon Sep 17 00:00:00 2001
From: Sean <skessler1964@gmail.com>
Date: Tue, 8 Apr 2025 12:59:57 -0400
Subject: [PATCH] Optimizations

---
 MarketDataLib/Cache/LocalPriceCache.cs        | 28 +++++++++++++++++--
 .../Generator/GainLoss/GainLossGenerator.cs   |  6 ++--
 .../GainLoss/GainLossGeneratorCum.cs          | 10 ++-----
 3 files changed, 31 insertions(+), 13 deletions(-)

diff --git a/MarketDataLib/Cache/LocalPriceCache.cs b/MarketDataLib/Cache/LocalPriceCache.cs
index afc3e56..4130bd9 100644
--- a/MarketDataLib/Cache/LocalPriceCache.cs
+++ b/MarketDataLib/Cache/LocalPriceCache.cs
@@ -15,6 +15,7 @@ namespace MarketData.Cache
 	{
 		private Dictionary<String,PricesByDate> priceCache=new Dictionary<String,PricesByDate>();
     private static LocalPriceCache instance=null;
+    private DateTime latestDate = Utility.Epoch;
     private Thread cacheMonitorThread=null;
     private volatile bool threadRun=true;
     private int cacheCycle=300000;
@@ -30,7 +31,8 @@ namespace MarketData.Cache
     {
       lock(thisLock)
       {
-        priceCache=new Dictionary<String,PricesByDate>(); 
+        priceCache=new Dictionary<String,PricesByDate>();
+        RefreshLatestDate();
       }
     }
 
@@ -55,18 +57,38 @@ namespace MarketData.Cache
     {
       lock(typeof(LocalPriceCache))
       {
-        if(null==instance)instance=new LocalPriceCache();
+        if(null==instance)
+        {
+          instance=new LocalPriceCache();
+          instance.RefreshLatestDate();
+        }
         return instance;
       }
     }
 
+    public void RefreshLatestDate()
+    {
+      lock(typeof(LocalPriceCache))
+      {
+        latestDate=PricingDA.GetLatestDate();
+      }
+    }
+
+    public DateTime GetLatestDate()
+    {
+      lock(typeof(LocalPriceCache))
+      {
+        return latestDate;
+      }
+    }
+
     public void Refresh()
     {
       lock(typeof(LocalPriceCache))
       {
         List<String> symbols=new List<String>(priceCache.Keys);
         Dictionary<String, DateTime> maxDbDates = PricingDA.GetLatestDates(symbols);
-
+        RefreshLatestDate();
         foreach(String symbol in symbols)
         {
           PricesByDate symbolPrices=priceCache[symbol];
diff --git a/MarketDataLib/Generator/GainLoss/GainLossGenerator.cs b/MarketDataLib/Generator/GainLoss/GainLossGenerator.cs
index fa196d9..89dd369 100644
--- a/MarketDataLib/Generator/GainLoss/GainLossGenerator.cs
+++ b/MarketDataLib/Generator/GainLoss/GainLossGenerator.cs
@@ -24,7 +24,8 @@ namespace MarketData.Generator.GainLoss
       if (null == portfolioTrades || 0 == portfolioTrades.Count) return null;
       LocalPriceCache.GetInstance().Add(portfolioTrades);
       DateTime minTradeDate = portfolioTrades.GetMinTradeDate();
-      DateTime maxDate = PricingDA.GetLatestDate();
+//      DateTime maxDate = PricingDA.GetLatestDate();
+      DateTime maxDate=LocalPriceCache.GetInstance().GetLatestDate();
       if(null!=maxDateRef)maxDate=maxDateRef.Value;
       Dictionary<DateTime,TotalGainLossItem> gainLossCollection = new Dictionary<DateTime, TotalGainLossItem>();
       DateGenerator dateGenerator = new DateGenerator();
@@ -76,7 +77,8 @@ namespace MarketData.Generator.GainLoss
       if (null == portfolioTrades || 0 == portfolioTrades.Count) return null;
       LocalPriceCache.GetInstance().Add(portfolioTrades);
       DateTime minTradeDate = portfolioTrades.GetMinTradeDate();
-      DateTime maxDate = PricingDA.GetLatestDate();
+//      DateTime maxDate = PricingDA.GetLatestDate();
+      DateTime maxDate=LocalPriceCache.GetInstance().GetLatestDate();
       if(null!=maxDateRef)maxDate=maxDateRef.Value;
       Dictionary<DateTime,TotalGainLossItem> gainLossCollection = new Dictionary<DateTime, TotalGainLossItem>();
       DateGenerator dateGenerator = new DateGenerator();
diff --git a/MarketDataLib/Generator/GainLoss/GainLossGeneratorCum.cs b/MarketDataLib/Generator/GainLoss/GainLossGeneratorCum.cs
index 82afbc6..0d3c043 100644
--- a/MarketDataLib/Generator/GainLoss/GainLossGeneratorCum.cs
+++ b/MarketDataLib/Generator/GainLoss/GainLossGeneratorCum.cs
@@ -24,7 +24,7 @@ namespace MarketData.Generator.GainLoss
       {
         if(!ValidatePortfolioTrades(portfolioTrades))return null;
         DateTime minDate=portfolioTrades.GetMinTradeDate();
-        DateTime maxDate=PricingDA.GetLatestDate();
+        DateTime maxDate = LocalPriceCache.GetInstance().GetLatestDate();
         if(null!=maxDateRef) maxDate=maxDateRef.Value;
         double prevGainLoss=double.NaN;
         List<DateTime> historicalDates=dateGenerator.GenerateHistoricalDates(minDate,maxDate);
@@ -103,9 +103,8 @@ namespace MarketData.Generator.GainLoss
       {
         if(!ValidatePortfolioTrades(portfolioTrades)) return null;
         DateTime minDate=portfolioTrades.Min(x => x.TradeDate);
-        DateTime maxDate=PricingDA.GetLatestDate();
+        DateTime maxDate = LocalPriceCache.GetInstance().GetLatestDate();
         double prevGainLoss=double.NaN;
-//        LocalPriceCache.GetInstance().RemoveDate(maxDate);
         List<DateTime> historicalDates=dateGenerator.GenerateHistoricalDates(minDate,maxDate);
 
         foreach(DateTime currentDate in historicalDates)
@@ -124,11 +123,6 @@ namespace MarketData.Generator.GainLoss
           foreach(PortfolioTrade openPosition in openPositions)
           {
             exposure+=openPosition.Shares*openPosition.Price;
-            //if(!LocalPriceCache.GetInstance().ContainsPrice(openPosition.Symbol,currentDate))
-            //{
-            //  Prices prices=PricingDA.GetPricesForward(openPosition.Symbol,currentDate,90);
-            //  LocalPriceCache.GetInstance().Add(prices);
-            //}
             Price price=LocalPriceCache.GetInstance().GetPrice(openPosition.Symbol,currentDate);
             if(null==price)
             {