| | | 1 | | using System.Buffers; |
| | | 2 | | using System.Runtime.Serialization; |
| | | 3 | | using NLightning.Domain.Channels.ValueObjects; |
| | | 4 | | using NLightning.Domain.Protocol.Interfaces; |
| | | 5 | | using NLightning.Domain.Serialization.Interfaces; |
| | | 6 | | |
| | | 7 | | namespace NLightning.Infrastructure.Serialization.Payloads; |
| | | 8 | | |
| | | 9 | | using Converters; |
| | | 10 | | using Domain.Protocol.Payloads; |
| | | 11 | | using Exceptions; |
| | | 12 | | |
| | | 13 | | public class UpdateFailHtlcPayloadSerializer : IPayloadSerializer<UpdateFailHtlcPayload> |
| | | 14 | | { |
| | | 15 | | private readonly IValueObjectSerializerFactory _valueObjectSerializerFactory; |
| | | 16 | | |
| | 4 | 17 | | public UpdateFailHtlcPayloadSerializer(IValueObjectSerializerFactory valueObjectSerializerFactory) |
| | | 18 | | { |
| | 4 | 19 | | _valueObjectSerializerFactory = valueObjectSerializerFactory; |
| | 4 | 20 | | } |
| | | 21 | | |
| | | 22 | | public async Task SerializeAsync(IMessagePayload payload, Stream stream) |
| | | 23 | | { |
| | 4 | 24 | | if (payload is not UpdateFailHtlcPayload updateFailHtlcPayload) |
| | 0 | 25 | | throw new SerializationException($"Payload is not of type {nameof(UpdateFailHtlcPayload)}"); |
| | | 26 | | |
| | | 27 | | // Get the ChannelId serializer |
| | 4 | 28 | | var channelIdSerializer = |
| | 4 | 29 | | _valueObjectSerializerFactory.GetSerializer<ChannelId>() |
| | 4 | 30 | | ?? throw new SerializationException($"No serializer found for value object type {nameof(ChannelId)}"); |
| | 4 | 31 | | await channelIdSerializer.SerializeAsync(updateFailHtlcPayload.ChannelId, stream); |
| | | 32 | | |
| | 4 | 33 | | await stream.WriteAsync(EndianBitConverter.GetBytesBigEndian(updateFailHtlcPayload.Id)); |
| | 4 | 34 | | await stream.WriteAsync(EndianBitConverter.GetBytesBigEndian(updateFailHtlcPayload.Len)); |
| | 4 | 35 | | await stream.WriteAsync(updateFailHtlcPayload.Reason); |
| | 4 | 36 | | } |
| | | 37 | | |
| | | 38 | | public async Task<UpdateFailHtlcPayload?> DeserializeAsync(Stream stream) |
| | | 39 | | { |
| | 4 | 40 | | var buffer = ArrayPool<byte>.Shared.Rent(sizeof(ulong)); |
| | | 41 | | |
| | | 42 | | try |
| | | 43 | | { |
| | | 44 | | // Get the ChannelId serializer |
| | 4 | 45 | | var channelIdSerializer = |
| | 4 | 46 | | _valueObjectSerializerFactory.GetSerializer<ChannelId>() |
| | 4 | 47 | | ?? throw new SerializationException($"No serializer found for value object type {nameof(ChannelId)}"); |
| | 4 | 48 | | var channelId = await channelIdSerializer.DeserializeAsync(stream); |
| | | 49 | | |
| | 4 | 50 | | await stream.ReadExactlyAsync(buffer.AsMemory()[..sizeof(ulong)]); |
| | 4 | 51 | | var id = EndianBitConverter.ToUInt64BigEndian(buffer[..sizeof(ulong)]); |
| | | 52 | | |
| | 4 | 53 | | await stream.ReadExactlyAsync(buffer.AsMemory()[..sizeof(ushort)]); |
| | 4 | 54 | | var len = EndianBitConverter.ToUInt16BigEndian(buffer[..sizeof(ushort)]); |
| | | 55 | | |
| | 4 | 56 | | var reason = new byte[len]; |
| | 4 | 57 | | await stream.ReadExactlyAsync(reason); |
| | | 58 | | |
| | 4 | 59 | | return new UpdateFailHtlcPayload(channelId, id, reason); |
| | | 60 | | } |
| | 0 | 61 | | catch (Exception e) |
| | | 62 | | { |
| | 0 | 63 | | throw new PayloadSerializationException($"Error deserializing {nameof(UpdateFailHtlcPayload)}", e); |
| | | 64 | | } |
| | | 65 | | finally |
| | | 66 | | { |
| | 4 | 67 | | ArrayPool<byte>.Shared.Return(buffer); |
| | | 68 | | } |
| | 4 | 69 | | } |
| | | 70 | | |
| | | 71 | | async Task<IMessagePayload?> IPayloadSerializer.DeserializeAsync(Stream stream) |
| | | 72 | | { |
| | 0 | 73 | | return await DeserializeAsync(stream); |
| | 0 | 74 | | } |
| | | 75 | | } |