UriNode.cs

using System;
using System.Text;
using Waher.Persistence.Attributes;
 
namespace Waher.Content.Semantic.Model
{
    public class UriNode : SemanticElement
    {
        private Uri parsed;
        private string uri;
        private string shortName;
 
        public UriNode()
        {
        }
 
        public UriNode(Uri Uri)
            : this(Uri, null)
        {
        }
 
        public UriNode(Uri Uri, string Short)
        {
            this.parsed = Uri;
            this.uri = Uri.ToString();
            this.shortName = Short ?? this.uri;
        }
 
        [IgnoreMember]
        public Uri Uri => this.parsed;
 
        public string ShortName
        {
            get => this.shortName;
            set => this.shortName = value;
        }
 
        public override bool IsLiteral => false;
 
        public bool HasShortName => !string.IsNullOrEmpty(this.shortName);
 
        public override object AssociatedObjectValue => this.uri;
 
        public string UriString
        {
            get => this.uri;
            set
            {
                this.parsed = new Uri(value);
                this.uri = value;
            }
        }
 
        public override string ToString()
        {
            StringBuilder sb = new StringBuilder();
 
            sb.Append('<');
            sb.Append(this.uri);
            sb.Append('>');
 
            return sb.ToString();
        }
 
        public override bool Equals(object obj)
        {
            return obj is UriNode Typed &&
                Typed.parsed.ToString() == this.parsed.ToString();
        }
 
        public override int GetHashCode()
        {
            return this.parsed.ToString().GetHashCode();
        }
 
        public override int CompareTo(object obj)
        {
            if (obj is UriNode Typed)
                return this.parsed.ToString().CompareTo(Typed.parsed.ToString());
            else
                return base.CompareTo(obj);
        }
    }
}