Timeout.cs

using System;
using System.Collections.Generic;
using System.IO;
using System.Threading.Tasks;
using System.Xml;
using Waher.Content;
using Waher.Content.Xml;
using Waher.Script;
 
namespace TAG.Simulator.ObjectModel.Activities
{
    public class Timeout : ActivityNode, ITriggerNode
    {
        private Duration limit;
 
        public Timeout(ISimulationNode Parent, Model Model)
            : base(Parent, Model)
        {
        }
 
        public override string LocalName => nameof(Timeout);
 
        public override ISimulationNode Create(ISimulationNode Parent, Model Model)
        {
            return new Timeout(Parent, Model);
        }
 
        public override Task FromXml(XmlElement Definition)
        {
            this.limit = XML.Attribute(Definition, "limit", Duration.Zero);
 
            return base.FromXml(Definition);
        }
 
        public override Task Initialize()
        {
            if (this.Parent is Wait Wait)
                Wait.Register(this);
 
            return base.Initialize();
        }
 
        public override async Task<LinkedListNode<IActivityNode>> Execute(Variables Variables)
        {
            await Activity.ExecuteActivity(Variables, this.FirstNode);
            return null;
        }
 
        public Task GetTask()
        {
            DateTime Now = DateTime.Now;
            DateTime TP = Now + this.limit;
            double ms = (TP - Now).TotalMilliseconds;
            if (ms < 0)
                ms = 0;
 
            return Task.Delay((int)ms);
        }
 
        public void ExportPlantUml(StreamWriter Output, int Indentation, bool First, char QuoteChar)
        {
            Indent(Output, Indentation);
 
            if (First)
                Output.WriteLine("split");
            else
                Output.WriteLine("split again");
 
            Indentation++;
            Indent(Output, Indentation);
 
            Output.Write("#FireBrick:");
            Values.Duration.ExportText(this.limit, Output);
            Output.WriteLine("<");
 
            base.ExportPlantUml(Output, Indentation + 1, QuoteChar);
        }
 
    }
}