Tighten up some exceptions in the log

MarketData/MarketDataLib/Helper/MarketDataHelper.cs

@@ -239,6 +239,7 @@ namespace MarketData.Helper
         responseString = Utility.KeepAfter(responseString, "earnings_announcements_earnings_table");
         if (null == responseString) return null;
         responseString = Utility.KeepBefore(responseString, "]  ]");
+        responseString = Utility.RemoveAfter(responseString, "earnings_announcements_sales_table");  // so don't bleed into next table
         if (null == responseString) return null;
         responseString = responseString + "]";
         responseString = Utility.KeepAfter(responseString, "[  [");
@@ -264,7 +265,7 @@ namespace MarketData.Helper
           if (null != periodEndingItems && 2 == periodEndingItems.Length)
           {
             int month = (int)FeedParser.ParseValueLong(periodEndingItems[0]);
-            int year = (int)FeedParser.ParseValueLong(periodEndingItems[1]);
+            int year = (int)FeedParser.ParseValueLong(periodEndingItems[1]); 
             earningsAnnouncement.PeriodEnding = new DateTime(year, month, DateTime.DaysInMonth(year, month));
           }
           earningsAnnouncement.Estimate = FeedParser.ParseValue(columnData[2]);
@@ -1537,7 +1538,6 @@ namespace MarketData.Helper
         symbol = symbol.ToUpper();
 
         WebProxy webProxy = HttpNetRequest.GetProxy("GetCompanyProfileYahoo");
-//        sb.Append("http://finance.yahoo.com/q/pr?s=").Append(symbol).Append("+Profile");
         sb.Append("https://finance.yahoo.com/quote/").Append(symbol).Append("/profile/");
         strRequest = sb.ToString();
         MDTrace.WriteLine(LogLevel.DEBUG,strRequest);
@@ -1628,8 +1628,12 @@ namespace MarketData.Helper
 
       // parse inner JSON
       JObject inner = Newtonsoft.Json.Linq.JObject.Parse(bodyJson);
-
-      return inner["quoteSummary"]?["result"]?[0]?["assetProfile"]?["longBusinessSummary"]?.ToString();
+      JToken resultToken = inner["quoteSummary"]?["result"];       // Ensure result is an array with at least one element
+      if (resultToken is not JArray resultArray || resultArray.Count == 0)
+      {
+        return null;
+      }
+      return resultArray[0]?["assetProfile"]?["longBusinessSummary"]?.ToString();
     }
 
     /// <summary>

MarketData/MarketDataLib/Utility/Utility.cs

@@ -374,16 +374,20 @@ namespace MarketData.Utils
 
     public static String KeepBefore(String strItem,String strKeepBefore)
     {
+      if(null==strItem)return strItem;
       int startPos=strItem.IndexOf(strKeepBefore);
       if(-1==startPos)return null;
       return strItem.Substring(0,startPos);
     }
+
     public static String KeepAfter(String strItem,String strKeepAfter)
     {
+      if(null==strItem)return strItem;
       int startPos=strItem.IndexOf(strKeepAfter);
       if(-1==startPos)return null;
       return strItem.Substring(startPos+strKeepAfter.Length);
     }
+
     public static String KeepAfterLast(String strItem,String strKeepAfter)
     {
       if(null==strItem)return null;
@@ -391,6 +395,21 @@ namespace MarketData.Utils
       if(-1==startPos)return null;
       return strItem.Substring(startPos+strKeepAfter.Length);
     }
+
+    /// <summary>
+    /// RemoveAfter - If remove after cannot find the target it simply returns the strign that was provided.
+    /// </summary>
+    /// <param name="strItem"></param>
+    /// <param name="strRemoveAfter"></param>
+    /// <returns></returns>
+    public static String RemoveAfter(String strItem,String strRemoveAfter)
+    {
+      if(null==strItem)return strItem;
+      int endPos=strItem.IndexOf(strRemoveAfter);
+      if(-1==endPos)return strItem;
+      return strItem.Substring(0,endPos + 1);
+    }
+
     public static String Find(String strItem,String search,char delimeter)
     {
       if(null==strItem)return null;
@@ -412,6 +431,7 @@ namespace MarketData.Utils
       if(!foundDelimeter)return null;
       return sb.ToString();
     }
+
     public static String FindFirst(String strItem,String search,char delimeter)
     {
       if(null==strItem)return null;
@@ -433,10 +453,12 @@ namespace MarketData.Utils
       if(!foundDelimeter)return null;
       return sb.ToString();
     }
+
     public static String AddQuotes(String item)
     {
       return "\"" + item + "\"";
     }
+
     public static long DateToLong(DateTime date)
     {
       int year = date.Year;
@@ -444,6 +466,7 @@ namespace MarketData.Utils
       int day = date.Day;
       return (year * 10000) + (month * 100) + day;
     }
+
     public static DateTime LongToDate(long longDate)
     {
       int year = (int)(longDate / 10000);
@@ -451,6 +474,7 @@ namespace MarketData.Utils
       int day = (int)(longDate - ((int)(longDate / 100)) * 100);
       return new DateTime(year, month, day);
     }
+    
     public static String DayOfWeekToString(DayOfWeek dayOfWeek)
     {
       switch(dayOfWeek)