GetTokenEvents.cs

using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using System.Xml;
using Waher.Content;
using Waher.IoTGateway;
using Waher.Networking.HTTP;
using Waher.Script;
using Waher.Script.Abstraction.Elements;
using Waher.Service.IoTBroker.DataStorage;
using Waher.Service.IoTBroker.NeuroFeatures;
using Waher.Service.IoTBroker.NeuroFeatures.Events;
using System.Text;
using Waher.Networking.XMPP.Server;
 
namespace Waher.Service.IoTBroker.WebServices.Agent.Tokens
{
    public class GetTokenEvents : AgentPostResource
    {
        public GetTokenEvents()
            : base("Tokens/GetTokenEvents",
                new KeyValuePair<Type, Expression>(typeof(Dictionary<string, object>), new Expression(jsonPattern)),
                new KeyValuePair<Type, Expression>(typeof(XmlDocument), new Expression(xmlPattern)))
        {
        }
 
        private static readonly string jsonPattern = Resources.LoadResourceAsText(typeof(GetTokenEvents).Namespace + ".JSON.GetTokenEvents.req");
        private static readonly string xmlPattern = Resources.LoadResourceAsText(typeof(GetTokenEvents).Namespace + ".XML.GetTokenEvents.req");
 
        public override async Task POST(HttpRequest Request, HttpResponse Response, Dictionary<string, IElement> Parameters)
        {
            AccountUser User = AssertUserAuthenticated(Request);
            string TokenId = (string)Parameters["PTokenId"].AssociatedObjectValue;
 
            int Offset = 0;
            int MaxCount = int.MaxValue;
 
            if (Parameters.TryGetValue("POffset", out IElement E) && !(E is null) &&
                E.AssociatedObjectValue is double d)
            {
                Offset = (int)d;
            }
 
            if (Parameters.TryGetValue("PMaxCount", out E) && !(E is null) &&
                E.AssociatedObjectValue is double d2)
            {
                MaxCount = (int)d2;
            }
            
            string BareJid = User.UserName + "@" + Gateway.Domain;
 
            Token Token = await NeuroFeaturesProcessor.GetToken(TokenId, true)
                ?? throw new NotFoundException("Token not found.");
 
            await GetToken.AssertAuthorization(Token, new XmppAddress(BareJid));
 
            IEnumerable<TokenEvent> Events = await NeuroFeaturesProcessor.GetTokenEvents(Token, Offset, MaxCount);
 
            StringBuilder Xml = new StringBuilder();
 
            Xml.Append("<events xmlns='");
            Xml.Append(NeuroFeaturesProcessor.NeuroFeaturesNamespace);
            Xml.Append("'>");
 
            foreach (TokenEvent Event in Events)
                Event.Serialize(Xml);
 
            Xml.Append("</events>");
 
            XmlDocument Doc = new XmlDocument()
            {
                PreserveWhitespace = true
            };
            Doc.LoadXml(Xml.ToString());
 
            await Response.Return(new NamedDictionary<string, object>("EventsResult", AgentNamespace)
            {
                { "Events", Doc }
            });
        }
 
    }
}