ActionWithReasonNode.cs

using System.Threading.Tasks;
using System.Xml;
 
namespace Waher.Service.IoTBroker.StateMachines.Model.Actions.Runtime
{
    public abstract class ActionWithReasonNode : ActionNode
    {
        private Reason reason;
 
        public ActionWithReasonNode()
            : base()
        {
        }
 
        public override async Task Parse(XmlElement Xml)
        {
            await base.Parse(Xml);
 
            this.ConvertValueAttributeToElement<Reason>(Xml, true);
        }
 
        protected override void OnChildNodesUpdated()
        {
            base.OnChildNodesUpdated();
 
            this.reason = this.GetValueElement<Reason>();
        }
 
        public override sealed async Task Execute(EvaluationArguments Arguments)
        {
            string Reason = (await this.reason.Evaluate(Arguments))?.ToString();
 
            await this.Execute(Arguments, Reason);
        }
 
        public abstract Task Execute(EvaluationArguments Arguments, string Reason);
    }
}