Umbraco-CMS/src/Umbraco.PublishedCache.NuCache/DataSource/PropertyData.cs

using System;
using System.ComponentModel;
using System.Runtime.Serialization;
using Newtonsoft.Json;
using Umbraco.Cms.Infrastructure.Serialization;

namespace Umbraco.Cms.Infrastructure.PublishedCache.DataSource
{

    [DataContract] // NOTE: Use DataContract annotations here to control how MessagePack serializes/deserializes the data to use INT keys
    public class PropertyData
    {
        private string? _culture;
        private string? _segment;

        [DataMember(Order = 0)]
        [JsonConverter(typeof(AutoInterningStringConverter))]
        [DefaultValue("")]
        [JsonProperty(DefaultValueHandling = DefaultValueHandling.IgnoreAndPopulate, PropertyName = "c")]
        public string? Culture
        {
            get => _culture;
            set => _culture = value ?? throw new ArgumentNullException(nameof(value)); // TODO: or fallback to string.Empty? CANNOT be null
        }

        [DataMember(Order = 1)]
        [JsonConverter(typeof(AutoInterningStringConverter))]
        [DefaultValue("")]
        [JsonProperty(DefaultValueHandling = DefaultValueHandling.IgnoreAndPopulate, PropertyName = "s")]
        public string? Segment
        {
            get => _segment;
            set => _segment = value ?? throw new ArgumentNullException(nameof(value)); // TODO: or fallback to string.Empty? CANNOT be null
        }

        [DataMember(Order = 2)]
        [JsonProperty("v")]
        public object? Value { get; set; }

        // Legacy properties used to deserialize existing nucache db entries
        [IgnoreDataMember]
        [JsonProperty("culture")]
        private string LegacyCulture
        {
            set => Culture = value;
        }

        [IgnoreDataMember]
        [JsonProperty("seg")]
        private string LegacySegment
        {
            set => Segment = value;
        }

        [IgnoreDataMember]
        [JsonProperty("val")]
        private object LegacyValue
        {
            set => Value = value;
        }
    }
}