MettlerToledo.Multi added to the project

TestBenchFramework/BenchControl/MettlerToledo/Multi/ReadMassOp.cs

@@ -0,0 +1,75 @@
+///
+/// Copyright (c) 2013-2015 Sensus Metering Systems
+///
+using System;
+using log4net;
+using TBF.Boxes;
+
+namespace TBF.BenchControl.MettlerToledo.Multi
+{
+	public class ReadMassOp : IOperation
+	{
+		private static readonly ILog log = LogManager.GetLogger(typeof(ReadMassOp));
+		public override string ToString() { return string.Format("ReadMassOp(.,.)"); }
+
+		bool done;
+
+		/// Set by the constructor
+		BalanceDev balanceDev;
+        FloatBox result;
+
+		/// <summary>
+		/// Events:  BalanceDone, Error
+		/// </summary>
+		/// <param name="balanceDev">Balance device instance</param>
+		/// <param name="requiredReadingsCount">Required mass readings count (>= 3)</param>
+		/// <param name="result">Reference to the measured mass in kg</param>
+        public ReadMassOp(BalanceDev balanceDev, ref FloatBox result)
+        {
+			if (balanceDev == null) throw new ArgumentNullException("balanceDev");
+			this.balanceDev = balanceDev;
+
+			this.result = result;
+
+			log.Debug(this.ToString());
+        }
+
+		/// <summary>Start this operation</summary>
+		public void Start()
+        {
+			done = false;
+			balanceDev.GetImmediateMassMeasurement();
+		}
+
+		/// <summary>Run this operation</summary>
+		/// <returns>
+		///		Event.None
+		///		Event.BalanceDone
+		///		Event.Error . . . . . Current.Tick == null
+		/// </returns>
+		public Event Run()
+		{
+            if (balanceDev.MsrmntState == MsrmntState.Valid)
+            {
+                result.Val = balanceDev.Mass;
+                done = true;
+                log.InfoFormat("ReadMassOp.Run() ... mass={0} ... returning Event.BalanceDone", balanceDev.Mass);
+                balanceDev.GetImmediateMassMeasurement();	/// Start another measurement
+                return Event.BalanceDone;				    /// Mass read OK
+            }
+            else if (done)
+            {
+                return Event.BalanceDone;			        /// Mass has already been read (at least once)
+            }
+            else
+            {
+                return Event.None;
+            }
+		}
+
+		/// <summary>Stop this operation</summary>
+		public void Stop()
+		{
+		}
+	}
+}