Tighten up some exceptions in the log

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)