ThingRegistryClientExtension.cs

using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using System.Xml;
using TAG.Simulator.ObjectModel.Actors;
using Waher.Content.Xml;
using Waher.Networking.XMPP.Provisioning;
 
namespace TAG.Simulator.XMPP.IoT.Extensions
{
    public class ThingRegistryClientExtension : IoTXmppExtension
    {
        private string componentAddress;
 
        public ThingRegistryClientExtension(ISimulationNode Parent, Model Model)
            : base(Parent, Model)
        {
        }
 
        public override string LocalName => nameof(ThingRegistryClientExtension);
 
        public override ISimulationNode Create(ISimulationNode Parent, Model Model)
        {
            return new ThingRegistryClientExtension(Parent, Model);
        }
 
        public override Task FromXml(XmlElement Definition)
        {
            this.componentAddress = XML.Attribute(Definition, "componentAddress");
 
            return base.FromXml(Definition);
        }
 
        public override Task<object> Add(IActor Instance, Waher.Networking.XMPP.XmppClient Client)
        {
            if (Client.ContainsTag("ConcentratorServer"))
                throw new Exception("Define thing registry clients before any concentrator server extensions.");
 
            ThingRegistryClient Extension = new ThingRegistryClient(Client, this.componentAddress);
            Client.SetTag("ThingRegistryClient", Extension);
 
            Extension.Claimed += (Sender, e) =>
            {
                this.Model.ExternalEvent(Instance, "Claimed",
                    new KeyValuePair<string, object>("e", e),
                    new KeyValuePair<string, object>("Client", Client));
 
                return Task.CompletedTask;
            };
 
            Extension.Disowned += (Sender, e) =>
            {
                this.Model.ExternalEvent(Instance, "Disowned",
                    new KeyValuePair<string, object>("e", e),
                    new KeyValuePair<string, object>("Client", Client));
 
                return Task.CompletedTask;
            };
 
            Extension.Removed += (Sender, e) =>
            {
                this.Model.ExternalEvent(Instance, "Removed",
                    new KeyValuePair<string, object>("e", e),
                    new KeyValuePair<string, object>("Client", Client));
 
                return Task.CompletedTask;
            };
 
            return Task.FromResult<object>(Extension);
        }
    }
}