func()

in thrift/server.go [135:215]

• 64 lines of code
• 16 McCabe index (conditional complexity)

func (s *Server) handle(origCtx context.Context, handler handler, method string, call *tchannel.InboundCall) error {
	reader, err := call.Arg2Reader()
	if err != nil {
		return err
	}
	headers, err := ReadHeaders(reader)
	if err != nil {
		return err
	}

	if err := argreader.EnsureEmpty(reader, "reading request headers"); err != nil {
		return err
	}

	if err := reader.Close(); err != nil {
		return err
	}

	reader, err = call.Arg3Reader()
	if err != nil {
		return err
	}

	tracer := tchannel.TracerFromRegistrar(s.ch)
	origCtx = tchannel.ExtractInboundSpan(origCtx, call, headers, tracer)
	ctx := s.ctxFn(origCtx, method, headers)

	wp := getProtocolReader(reader)
	success, resp, err := handler.server.Handle(ctx, method, wp.protocol)
	thriftProtocolPool.Put(wp)

	if handler.postResponseCB != nil {
		defer handler.postResponseCB(ctx, method, resp)
	}

	if err != nil {
		if _, ok := err.(thrift.TProtocolException); ok {
			// We failed to parse the Thrift generated code, so convert the error to bad request.
			err = tchannel.NewSystemError(tchannel.ErrCodeBadRequest, err.Error())
		}

		reader.Close()
		call.Response().SendSystemError(err)
		return nil
	}

	if err := argreader.EnsureEmpty(reader, "reading request body"); err != nil {
		return err
	}
	if err := reader.Close(); err != nil {
		return err
	}

	if !success {
		call.Response().SetApplicationError()
	}

	writer, err := call.Response().Arg2Writer()
	if err != nil {
		return err
	}

	if err := WriteHeaders(writer, ctx.ResponseHeaders()); err != nil {
		return err
	}
	if err := writer.Close(); err != nil {
		return err
	}

	writer, err = call.Response().Arg3Writer()

	wp = getProtocolWriter(writer)
	defer thriftProtocolPool.Put(wp)

	if err := resp.Write(wp.protocol); err != nil {
		call.Response().SendSystemError(err)
		return err
	}

	return writer.Close()
}