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