Add LatestPricingDate to LocalPriceCache and optimize company name retrieval

.vscode/tasks.json

@@ -7,7 +7,7 @@
       "type": "process",
       "args": [
         "build",
-        "${workspaceFolder}/MarketData/MarketData.sln",
+        "${workspaceFolder}/MarketData.sln",
         "/property:GenerateFullPaths=true",
         "/consoleloggerparameters:NoSummary;ForceNoAlign"
       ],
@@ -19,7 +19,7 @@
       "type": "process",
       "args": [
         "publish",
-        "${workspaceFolder}/MarketData/MarketData.sln",
+        "${workspaceFolder}/MarketData.sln",
         "/property:GenerateFullPaths=true",
         "/consoleloggerparameters:NoSummary;ForceNoAlign"
       ],
@@ -33,9 +33,14 @@
         "watch",
         "run",
         "--project",
-        "${workspaceFolder}/MarketData/MarketData.sln"
+        "${workspaceFolder}/MarketData.sln"
       ],
       "problemMatcher": "$msCompile"
+    },
+    {
+        "label": "echo",
+        "type": "shell",
+        "command": "echo ${workspaceFolder}"
     }
   ]
 }

MarketData/MarketDataLib/Cache/LocalPriceCache.cs

@@ -3,14 +3,15 @@ using MarketData.Utils;
 using MarketData.DataAccess;
 
 // This cache is mainly used by gainloss generator.  This cache is intended to be front loaded and then used.
-// This cache will not attempt to load an item that is not found.  It does have a Refresh() that will reload only the most recent pricing data from the database in order to 
-// maintain the most updated pricing. 
+// This cache will not attempt to load an item that is not found.  It does have a Refresh() that will reload only the most recent 
+// pricing data from the database in order to maintain the most updated pricing. 
 namespace MarketData.Cache
 {
 	public class LocalPriceCache
 	{
 		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;
@@ -26,7 +27,8 @@ namespace MarketData.Cache
     {
       lock(thisLock)
       {
-        priceCache=new Dictionary<String,PricesByDate>(); 
+        priceCache=new Dictionary<String,PricesByDate>();
+        RefreshLatestDate();
       }
     }
 
@@ -51,18 +53,38 @@ 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];

MarketData/MarketDataLib/DataAccess/PricingDA.cs

@@ -682,6 +682,7 @@ namespace MarketData.DataAccess
 
       try
       {
+        if(null == symbols || 0==symbols.Count)return dictionary;
         StringBuilder sb = new StringBuilder();
         sqlConnection = SqlUtils.CreateMySqlConnection(MainDataSource.Instance.LocateDataSource("market_data"));
         sb.Append("select symbol, company from securitymaster where symbol in ");

MarketData/MarketDataLib/Generator/GainLoss/ActiveGainLossGenerator.cs

@@ -16,10 +16,6 @@ namespace MarketData.Generator.GainLoss
     public ActiveGainLossGenerator()
     {
     }
-    //public void RefreshPriceCache()
-    //{
-    //  LocalPriceCache.GetInstance().Refresh();
-    //}
 // *****************************************************************************************************************************************************************
 // ************************************************ G E N E R A T E  A C T I V E  G A I N  L O S S  /  G A I N  L O S S  P E R C E N T *****************************
 // *****************************************************************************************************************************************************************
@@ -28,7 +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,GainLossItem> gainLoss = new Dictionary<DateTime, GainLossItem>();
       DateGenerator dateGenerator = new DateGenerator();

MarketData/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();

MarketData/MarketDataLib/MarketDataModel/GainLoss/GainLossSummaryItemCollection.cs

@@ -99,8 +99,8 @@ namespace MarketData.MarketDataModel.GainLoss
     public GainLossSummaryItemCollection(PortfolioTrades portfolioTrades,DateTime? maxDateRef=null)
     {
       List<String> symbols=portfolioTrades.Symbols;
-
       Dictionary<String,bool> stopLimits = PortfolioDA.HasStopLimit(symbols);
+      Dictionary<String,String> namesDictionary = PricingDA.GetNamesForSymbols(symbols);
 
       foreach(String symbol in symbols)
       {
@@ -114,7 +114,8 @@ namespace MarketData.MarketDataModel.GainLoss
         GainLossSummaryItem gainLossSummaryItem=new GainLossSummaryItem();
         gainLossSummaryItem.Date=gainLossCompoundModelCollection[gainLossCompoundModelCollection.Count-1].Date;
         gainLossSummaryItem.Symbol=symbol;
-        gainLossSummaryItem.CompanyName=PricingDA.GetNameForSymbol(symbol);
+//        gainLossSummaryItem.CompanyName=PricingDA.GetNameForSymbol(symbol);
+        gainLossSummaryItem.CompanyName=namesDictionary.ContainsKey(symbol)?namesDictionary[symbol]:"";
         gainLossSummaryItem.CurrentGainLoss=gainLossCompoundModelCollection[gainLossCompoundModelCollection.Count-1].ActiveGainLoss;
         double previousGainLoss=1==gainLossCompoundModelCollection.Count?0.00:gainLossCompoundModelCollection[gainLossCompoundModelCollection.Count-2].ActiveGainLoss;
         gainLossSummaryItem.PreviousGainLoss=previousGainLoss;

MarketData/MarketDataLib/MarketDataModel/PricesByDate.cs

@@ -21,11 +21,8 @@ namespace MarketData.MarketDataModel
 		  if(Utility.IsEpoch(key))return;
       base.Add(key,price);
       if(key>maxDate) maxDate=key;
-//			if(!Utility.IsEpoch(minDate) && key<minDate)minDate=key;
 			if(Utility.IsEpoch(minDate))minDate=key;
 			else if(key<minDate)minDate=key;
-			//else if(Utility.IsEpoch(minDate)) minDate=key;
-			//else if(key<minDate && !Utility.IsEpoch(key)) minDate=key;
     }
     public DateTime MaxDate
     {