public MsgBodyReader(IGenericBsonSerializer <T> serializer, ResponseMsgMessage message)
{
Serializer = serializer;
Message = message;
CursorResult = new CursorResult <T>
{
MongoCursor = new MongoCursor <T>
{
Items = CursorItemsPool <T> .Pool.Get()
}
};
}
private async Task StartReadAsync()
{
if (_reader is null)
{
ThrowHelper.ConnectionException <bool>(_endpoint);
}
_logger.LogInformation($"Channel {_channelNum} start reading");
MongoResponseMessage message;
// TaskCompletionSourceWithCancellation<MongoResponseMessage>? completion;
ParserCompletion?completion;
while (_shutdownToken.IsCancellationRequested == false)
{
try
{
var headerResult = await _reader.ReadAsync(MessageHeaderReader, _shutdownToken.Token)
.ConfigureAwait(false);
_reader.Advance();
_logger.GotMessage(headerResult.Message.ResponseTo);
switch (headerResult.Message.Opcode)
{
case Opcode.Reply:
_logger.GotReplyMessage(headerResult.Message.ResponseTo);
var replyResult = await _reader.ReadAsync(ReplyMessageReader, _shutdownToken.Token)
.ConfigureAwait(false);
_reader.Advance();
message = new ReplyMessage(headerResult.Message, replyResult.Message);
break;
case Opcode.OpMsg:
_logger.GotMsgMessage(headerResult.Message.ResponseTo);
var msgResult = await _reader.ReadAsync(MsgMessageReader, _shutdownToken.Token)
.ConfigureAwait(false);
_reader.Advance();
message = new ResponseMsgMessage(headerResult.Message, msgResult.Message);
break;
case Opcode.Message:
case Opcode.Update:
case Opcode.Insert:
case Opcode.Query:
case Opcode.GetMore:
case Opcode.Delete:
case Opcode.KillCursors:
case Opcode.Compressed:
default:
_logger.UnknownOpcodeMessage(headerResult.Message);
if (_completionMap.TryGetValue(headerResult.Message.ResponseTo, out completion))
{
completion.CompletionSource.TrySetException(
new NotSupportedException($"Opcode '{headerResult.Message.Opcode}' not supported"));
}
continue;
//TODO: need to read pipe to end
break;
}
if (_completionMap.TryGetValue(message.Header.ResponseTo, out completion))
{
var result = await completion.ParseAsync(message).ConfigureAwait(false);
completion.CompletionSource.TrySetResult(result);
}
else
{
_logger.LogError("Message not found");
}
}
catch (Exception e)
{
_logger.LogError(e.ToString());
}
}
}
public MsgType0BodyReader(IGenericBsonSerializer <T> serializer, ResponseMsgMessage message)
: base(serializer, message)
{
_payloadLength = message.Header.MessageLength;
_state = ParserState.Initial;
}
public MsgType1BodyReader(IGenericBsonSerializer <T> serializer, ResponseMsgMessage message)
: base(serializer, message)
{
}
