QueryBase.cs

using System;
using System.Collections.Generic;
using System.Security.Cryptography.X509Certificates;
using System.Threading.Tasks;
using Waher.Runtime.Inventory;
 
namespace Waher.Content.Queries
{
    public abstract class QueryBase : IContentQuery
    {
        public QueryBase()
        {
        }
 
        public abstract string[] UriSchemes
        {
            get;
        }
 
        public abstract bool CanQuery(Uri Uri, out Grade Grade);
 
        public virtual Task<ContentResponse> QueryAsync(Uri Uri, object Data, X509Certificate Certificate,
            EventHandler<RemoteCertificateEventArgs> RemoteCertificateValidator, params KeyValuePair<string, string>[] Headers)
        {
            return this.QueryAsync(Uri, Data, Certificate, RemoteCertificateValidator, InternetContent.DefaultTimeout, Headers);
        }
 
        public virtual async Task<ContentResponse> QueryAsync(Uri Uri, object Data, X509Certificate Certificate,
            EventHandler<RemoteCertificateEventArgs> RemoteCertificateValidator, int TimeoutMs, params KeyValuePair<string, string>[] Headers)
        {
            ContentResponse P = await InternetContent.EncodeAsync(Data, System.Text.Encoding.UTF8);
            if (P.HasError)
                return P;
 
            ContentBinaryResponse Result = await this.QueryAsync(Uri, P.Encoded, P.ContentType, Certificate,
                RemoteCertificateValidator, TimeoutMs, Headers);
 
            if (Result.HasError)
                return new ContentResponse(Result.Error);
            else
                return await InternetContent.DecodeAsync(Result.ContentType, Result.Encoded, Uri);
        }
 
        public virtual Task<ContentBinaryResponse> QueryAsync(Uri Uri, byte[] EncodedData, string ContentType, 
            X509Certificate Certificate, EventHandler<RemoteCertificateEventArgs> RemoteCertificateValidator, params KeyValuePair<string, string>[] Headers)
        {
            return this.QueryAsync(Uri, EncodedData, ContentType, Certificate, RemoteCertificateValidator, InternetContent.DefaultTimeout, Headers);
        }
 
        public abstract Task<ContentBinaryResponse> QueryAsync(Uri Uri, byte[] EncodedData, string ContentType, 
            X509Certificate Certificate, EventHandler<RemoteCertificateEventArgs> RemoteCertificateValidator, int TimeoutMs, params KeyValuePair<string, string>[] Headers);
 
    }
}