NLog.Targets.Stackify - Added logLastParameter to skip scanning of all parameters

Author: snakefoot

Src/NLog.Targets.Stackify/StackifyTarget.cs

@@ -29,6 +29,7 @@ public class StackifyTarget : TargetWithLayout
         public bool? logMethodNames { get; set; }
         public bool? logAllParams { get; set; }
         public bool? logAllProperties { get; set; }
+        public bool? logLastParameter { get; set; }
 
         private List<string> _GlobalContextKeys = new List<string>();
         private List<string> _MappedContextKeys = new List<string>();
@@ -240,45 +241,47 @@ internal LogMsg Translate(LogEventInfo loggingEvent)
             msg.Msg = (formattedMessage ?? "").Trim();
 
             object debugObject = null;
-            Dictionary<string, object> args = new Dictionary<string, object>();
 
             if ((loggingEvent.Parameters != null) && (loggingEvent.Parameters.Length > 0))
-            {
-
-                for (int i = 0; i < loggingEvent.Parameters.Length; i++)
+            {
+                Dictionary<string, object> args = (logAllParams ?? true) ? new Dictionary<string, object>() : null;
+                if (args != null || (logLastParameter ?? true))
                 {
-                    var item = loggingEvent.Parameters[i];
-
-                    if (item == null)
+                    for (int i = 0; i < loggingEvent.Parameters.Length; i++)
                     {
-                        continue;
-                    }
-                    else if (item is Exception)
-                    {
-                        if (loggingEvent.Exception == null)
+                        var item = loggingEvent.Parameters[i];
+
+                        if (item == null)
                         {
-                            loggingEvent.Exception = (Exception)item;
+                            continue;
+                        }
+                        else if (item is Exception)
+                        {
+                            if (loggingEvent.Exception == null)
+                            {
+                                loggingEvent.Exception = (Exception)item;
+                            }
+                        }
+                        else if (item.ToString() == msg.Msg)
+                        {
+                            //ignore it.   
+                        }
+                        else if (args != null)
+                        {
+                            args["arg" + i] = loggingEvent.Parameters[i];
+                            debugObject = item;
+                        }
+                        else
+                        {
+                            debugObject = item;
                         }
                     }
-                    else if (item.ToString() == msg.Msg)
-                    {
-                        //ignore it.   
-                    }
-                    else if (logAllParams ?? true)
-                    {
-                        args["arg" + i] = loggingEvent.Parameters[i];
-                        debugObject = item;
-                    }
-                    else
+
+                    if (args != null && args.Count > 1)
                     {
-                        debugObject = item;
+                        debugObject = args;
                     }
                 }
-
-                if ((logAllParams ?? true) && args != null && args.Count > 1)
-                {
-                    debugObject = args;
-                }
             }