SftpOpenRequest
using Renci.SshNet.Sftp.Responses;
using System;
using System.Text;
namespace Renci.SshNet.Sftp.Requests
{
    internal sealed class SftpOpenRequest : SftpRequest
    {
        private readonly Action<SftpHandleResponse> _handleAction;
        private byte[] _fileName;
        public override SftpMessageTypes SftpMessageType => SftpMessageTypes.Open;
        public string Filename {
            get {
                return Encoding.GetString(_fileName, 0, _fileName.Length);
            }
            private set {
                _fileName = Encoding.GetBytes(value);
            }
        }
        public Flags Flags { get; }
        public Encoding Encoding { get; }
        protected override int BufferCapacity => base.BufferCapacity + 4 + _fileName.Length + 4 + 4;
        public SftpOpenRequest(uint protocolVersion, uint requestId, string fileName, Encoding encoding, Flags flags, Action<SftpHandleResponse> handleAction, Action<SftpStatusResponse> statusAction)
            : base(protocolVersion, requestId, statusAction)
        {
            Encoding = encoding;
            Filename = fileName;
            Flags = flags;
            _handleAction = handleAction;
        }
        protected override void LoadData()
        {
            base.LoadData();
            throw new NotSupportedException();
        }
        protected override void SaveData()
        {
            base.SaveData();
            WriteBinaryString(_fileName);
            Write((uint)Flags);
            Write(0);
        }
        public override void Complete(SftpResponse response)
        {
            SftpHandleResponse sftpHandleResponse = response as SftpHandleResponse;
            if (sftpHandleResponse != null)
                _handleAction(sftpHandleResponse);
            else
                base.Complete(response);
        }
    }
}