XmppSensor.cs

using System;
using System.Threading.Tasks;
using Waher.Content;
using Waher.Networking.XMPP;
using Waher.Networking.XMPP.Sensor;
using Waher.Things.SensorData;
 
namespace Waher.Client.WPF.Model.Things
{
    public class XmppSensor : XmppContact
    {
        private readonly bool suportsEvents;
 
        public XmppSensor(TreeNode Parent, XmppClient Client, string BareJid, bool SupportsEventSubscripton, bool SupportsRdp)
            : base(Parent, Client, BareJid, SupportsRdp)
        {
            this.suportsEvents = SupportsEventSubscripton;
        }
 
        public override string TypeName
        {
            get { return "Sensor"; }
        }
 
        public override bool CanReadSensorData => true;
        public override bool CanSubscribeToSensorData => this.suportsEvents;
 
        public override async Task<SensorDataClientRequest> StartSensorDataMomentaryReadout()
        {
            XmppAccountNode XmppAccountNode = this.XmppAccountNode;
            SensorClient SensorClient;
 
            if (!(XmppAccountNode is null) && !((SensorClient = XmppAccountNode.SensorClient) is null))
                return await SensorClient.RequestReadout(this.RosterItem.LastPresenceFullJid, FieldType.Momentary);
            else
                return null;
        }
 
        public override async Task<SensorDataClientRequest> StartSensorDataFullReadout()
        {
            XmppAccountNode XmppAccountNode = this.XmppAccountNode;
            SensorClient SensorClient;
 
            if (!(XmppAccountNode is null) && !((SensorClient = XmppAccountNode.SensorClient) is null))
                return await SensorClient.RequestReadout(this.RosterItem.LastPresenceFullJid, FieldType.All);
            else
                throw new NotSupportedException();
        }
 
        public override async Task<SensorDataSubscriptionRequest> SubscribeSensorDataMomentaryReadout(FieldSubscriptionRule[] Rules)
        {
            XmppAccountNode XmppAccountNode = this.XmppAccountNode;
            SensorClient SensorClient;
 
            if (!(XmppAccountNode is null) && !((SensorClient = XmppAccountNode.SensorClient) is null))
            {
                return await SensorClient.Subscribe(this.RosterItem.LastPresenceFullJid, FieldType.Momentary, Rules,
                    Duration.FromSeconds(1), Duration.FromMinutes(1), false);
            }
            else
                return null;
        }
 
    }
}