init

Common/DTS.Common.Import/.svn/pristine/86/8659e7340a0242155551ab7a02b8edce0b97e50c.svn-base

@@ -0,0 +1,46 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DTS.Common.Import.Persist
+{
+    public class PersistCalculator : IPersistCalculator
+    {
+
+        private double _done;
+        private double _total;
+
+        public double ProgressValue { get => _done / _total; }
+
+        public void AddDone(double value)
+        {
+            _done += value;
+        }
+
+        public void AddDone()
+        {
+            _done++;
+        }
+
+        public void AddToTotal(double value)
+        {
+            if (value < 0)
+            {
+                throw new ArgumentOutOfRangeException("value", "value should not be less or equal to zero.");
+            }
+            _total += value;
+        }
+
+    }
+
+    public interface IPersistCalculator
+    {
+        void AddDone();
+        void AddDone(double value);
+        double ProgressValue { get; }
+        void AddToTotal(double value);
+
+    }
+}