Sitecore xConnect XConnectDataAdapterProvider extension to only goals and other events specified in configuration

CustomXConnectDataAdapterProvider.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Xml;

using Sitecore.Analytics.Model;
using Sitecore.Analytics.XConnect.DataAccess;
using Sitecore.Framework.Conditions;
using Sitecore.Xml;

namespace MyProject.Analytics.XConnect.DataAccess
{
    public class CustomXConnectDataAdapterProvider : XConnectDataAdapterProvider
    {
        private bool FilteringEnabled { get; set; }
        private bool IncludeGoals { get; set; }
        private Guid[] _pageEventDefinitions = Array.Empty<Guid>();

        public override void SaveVisit(VisitData visit)
        {
            Condition.Requires(visit, nameof(visit)).IsNotNull();

            if (FilteringEnabled)
            {
                var events = visit.Pages.SelectMany(x => x.PageEvents).ToList();
                if (IncludeGoals)
                {
                    if (!events.Any(x => x.IsGoal) && !events.Any(x => _pageEventDefinitions.Contains(x.PageEventDefinitionId)))
                        return;
                }
                else
                {
                    if (!events.Any(x => _pageEventDefinitions.Contains(x.PageEventDefinitionId)))
                        return;
                }
            }

            base.SaveVisit(visit);
        }

        private void AddFilterEvents(XmlNode configNode)
        {
            Condition.Requires(configNode.Name, "configNode.Name").IsEqualTo("PageEventDefinitionId");
            AddFacet(new Guid(XmlUtil.GetAttribute("Id", configNode)));
        }

        private void AddFacet(Guid id)
        {
            var source = new HashSet<Guid>(_pageEventDefinitions);
            if (!source.Add(id))
                return;
            Interlocked.Exchange(ref _pageEventDefinitions, source.ToArray());
        }
    }
}