ContentBlock.cs

using System;
using System.Collections.Generic;
using System.Threading.Tasks;
 
namespace Waher.Networking.HTTP.Mcp.Model.ContentBlocks
{
    public abstract class ContentBlock : Annotations, IContentBlock
    {
        public ContentBlock()
            : base()
        {
        }
 
        public ContentBlock(McpRole[]? Audience, double? Priority, DateTime? LastModified,
            Dictionary<string, object>? MetaData)
            : base(Audience, Priority, LastModified)
        {
            this.MetaData = MetaData;
        }
 
        public Dictionary<string, object>? MetaData { get; }
 
        public abstract Type[] Encodes { get; }
 
        public abstract bool IsStructuredContent { get; }
 
        public abstract Task<Dictionary<string, object>> Encode(object Content);
 
        public override void Annotate(Dictionary<string, object> Object)
        {
            base.Annotate(Object);
 
            if (!(this.MetaData is null))
                Object["_meta"] = this.MetaData;
        }
    }
}