maersai_heavy_back_vehicle/Service/TBox/Codec/Decoder.cs

using DotNetty.Buffers;
using DotNetty.Codecs;
using DotNetty.Transport.Channels;
using HybirdFrameworkCore.Utils;
using log4net;
using Service.TBox.Msg;
using Service.TBox.Msg.TBox;

namespace Service.TBox.Codec;

public class Decoder : ByteToMessageDecoder
{
    //TODO 实际开发时去掉
    public static Queue<BaseMsg> Msgs { get; set; } = new();
    //TODO 实际开发时去掉
    public static Queue<byte[]> BytesQueue { get; set; } = new();

    private static readonly ILog Log = LogManager.GetLogger(typeof(Decoder));

    private readonly int _fixedLength = 13;

    protected override void Decode(IChannelHandlerContext context, IByteBuffer input, List<object> output)
    {
        if (_fixedLength <= input.ReadableBytes)
        {
            byte[] bytes = new byte[_fixedLength-1];
            input.SkipBytes(1);
            input.ReadBytes(bytes);

            //TODO 实际开发时去掉
            BytesQueue.Enqueue(bytes);

            Log.Info($"receive {BitUtls.BytesToHexStr(bytes)}");

            int id = BitConverter.ToInt32(new byte[] { bytes[3], bytes[2], bytes[1], bytes[0] }, 0);
            BaseMsg baseMsg = id switch
            {
                0x1882D0F3 => ModelConvert.Decode<SocMsg>(bytes),
                0x18FF48A8 => ModelConvert.Decode<StatusMsg>(bytes),
                _ => ModelConvert.Decode<OtherMsg>(bytes),
            };

            //TODO 实际开发时去掉
            Msgs.Enqueue(baseMsg);
            output.Add(baseMsg);
        }
    }
}