Sorting Sitecore Items by Popularity using xDB

ViewValue.cs

using Sitecore.Analytics.Aggregation.Data.Model;
using System;

namespace Website.Logic.Analytics.Views
{
    public class ViewValue : DictionaryValue
    {
        internal static ViewValue Reduce(ViewValue left, ViewValue right)
        {
            var viewValue = new ViewValue();

            viewValue.Count = left.Count + right.Count;
            viewValue.TemplateId = left.TemplateId
            
            return viewValue;
        }

        public long Count { get; set; }
        public Guid TemplateId { get; set; }
    }
}