Refactorization : BenchControl -> Rig

TBF/Rig/MettlerToledo/Standard/GetSerNumOp.cs

@@ -0,0 +1,84 @@
+///
+/// Copyright (c) 2013-2015 Sensus Metering Systems
+///
+using System;
+using log4net;
+
+namespace TBF.Rig.MettlerToledo.Standard
+{
+	public class GetSerNumOp : IOperation
+	{
+		private static readonly ILog log = LogManager.GetLogger(typeof(GetSerNumOp));
+        public override string ToString() { return string.Format("GetSerNumOp(.,.)"); }
+
+		/// Set by the constructor
+		BalanceNewDev scale;
+		string serialNumber;
+        bool activityStarted;
+
+		/// <summary>
+		/// Events:  BalanceDone, Error
+		/// </summary>
+		/// <param name="scale">Balance device instance</param>
+		/// <param name="serialNumber">Reference to the serialNumber</param>
+		public GetSerNumOp(BalanceNewDev scale, ref string serialNumber)
+        {
+			if (scale == null) throw new ArgumentNullException("balanceDev");
+			this.scale = scale;
+			this.serialNumber = serialNumber;
+
+			log.Debug(this.ToString());
+        }
+
+		/// <summary>Start this operation</summary>
+		public void Start()
+        {
+            if (scale.Activity == Activity.Idle)
+            {
+                scale.SendGetSerialNumberCmd();
+                activityStarted = true;
+                scale.Activity = Activity.RunningOperation;
+            }
+            else
+            {
+                activityStarted = false;
+            }
+        }
+
+		/// <summary>Run this operation</summary>
+		/// <returns>
+		///		Event.None
+		///		Event.BalanceDone
+		/// </returns>
+		public Event Run()
+		{
+            if (!activityStarted && scale.Activity == Activity.Idle)
+            {
+                scale.SendGetSerialNumberCmd();
+                activityStarted = true;
+                scale.Activity = Activity.RunningOperation;
+                return Event.Busy;
+            }
+
+            if (scale.MsrmntState == MsrmntState.Valid)
+			{
+				serialNumber = scale.SerialNumber;
+				return Event.BalanceDone;				    /// S/N read successful
+			}
+
+            if (scale.MsrmntState == MsrmntState.Failed)
+            {
+                return Event.Error;	/// S/N read failed
+            }
+
+            return Event.Busy;								/// No result yet
+		}
+
+		/// <summary>Stop this operation</summary>
+		public void Stop()
+		{
+            if (scale.MsrmntState == MsrmntState.Busy) scale.MsrmntState = MsrmntState.Failed;
+            scale.Activity = Activity.Idle;
+		}
+	}
+}