VanityResource.cs

using System.Collections.Generic;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using Waher.Runtime.Language;
using Waher.Things;
using Waher.Things.Attributes;
using Waher.Things.DisplayableParameters;
 
namespace Waher.Service.IoTBroker.Sources.GatewayConfig
{
    public class VanityResource : ConfigurationNode
    {
        private string regex;
 
        public VanityResource()
            : base(null, null)
        {
            this.regex = string.Empty;
            this.Url = string.Empty;
        }
 
        public VanityResource(GatewayConfigSource Source, WebServer Parent, string Regex, string Url)
            : base(Source, Parent)
        {
            this.regex = Regex;
            this.Url = Url;
        }
 
        [Page(7, "Configuration")]
        [Header(56, "Regular expression:")]
        [ToolTip(57, "Regular expression defining a vanity resource or set of vanity resources.")]
        [Required]
        public string Regex
        {
            get => this.regex;
            set
            {
                new Regex(value);   // Check if syntax is correct.
                this.regex = value;
            }
        }
 
        [Page(7, "Configuration")]
        [Header(58, "URL:")]
        [ToolTip(59, "URL the resource points to. Can include references to named group in the regular expression.")]
        [Required]
        [Text(TextPosition.AfterField, 63, "Note: Changes will take effect after broker has been restarted.")]
        public string Url { get; set; }
 
        public override string NodeId => this.Regex;
 
        public override Task<string> GetTypeNameAsync(Language Language) => Language.GetStringAsync(typeof(GatewayConfigSource), 60, "Vanity Resource");
 
        public override Task<bool> AcceptsParentAsync(INode Parent)
        {
            return Task.FromResult(Parent is WebServer);
        }
 
        public override async Task<IEnumerable<Parameter>> GetDisplayableParametersAsync(Language Language, RequestOrigin Caller)
        {
            LinkedList<Parameter> Parameters = new LinkedList<Parameter>();
            Namespace Namespace = await Language.GetNamespaceAsync(typeof(GatewayConfigSource).Namespace);
 
            Parameters.AddLast(new StringParameter("Location", await Namespace.GetStringAsync(82, "Location"), this.Url));
 
            return Parameters;
        }
    }
}