コード例 #1
0
ファイル: server.go プロジェクト: uber/tchannel-go
// Handle handles an incoming TChannel call and forwards it to the correct handler.
func (s *Server) Handle(ctx context.Context, call *tchannel.InboundCall) {
	op := call.MethodString()
	service, method, ok := getServiceMethod(op)
	if !ok {
		log.Fatalf("Handle got call for %s which does not match the expected call format", op)
	}

	s.RLock()
	handler, ok := s.handlers[service]
	s.RUnlock()
	if !ok {
		log.Fatalf("Handle got call for service %v which is not registered", service)
	}

	if err := s.handle(ctx, handler, method, call); err != nil {
		s.onError(err)
	}
}
コード例 #2
0
ファイル: server.go プロジェクト: glycerine/tchannel-go
// Handle handles an incoming TChannel call and forwards it to the correct handler.
func (s *Server) Handle(ctx context.Context, call *tchannel.InboundCall) {
	parts := strings.Split(string(call.Operation()), "::")
	if len(parts) != 2 {
		log.Fatalf("Handle got call for %v which does not match the expected call format", parts)
	}

	service, method := parts[0], parts[1]
	s.mut.RLock()
	handler, ok := s.handlers[service]
	s.mut.RUnlock()
	if !ok {
		log.Fatalf("Handle got call for service %v which is not registered", service)
	}

	if err := s.handle(ctx, handler, method, call); err != nil {
		s.onError(err)
	}
}
コード例 #3
0
ファイル: server.go プロジェクト: glycerine/tchannel-go
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 := reader.Close(); err != nil {
		return err
	}

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

	ctx := WithHeaders(origCtx, headers)
	protocol := thrift.NewTBinaryProtocolTransport(&readWriterTransport{Reader: reader})
	success, resp, err := handler.server.Handle(ctx, method, protocol)
	if err != nil {
		reader.Close()
		call.Response().SendSystemError(err)
		return nil
	}
	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()
	protocol = thrift.NewTBinaryProtocolTransport(&readWriterTransport{Writer: writer})
	resp.Write(protocol)
	err = writer.Close()

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

	return err
}
コード例 #4
0
ファイル: server.go プロジェクト: uber/tchannel-go
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 := 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 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 := 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)
	resp.Write(wp.protocol)
	thriftProtocolPool.Put(wp)
	err = writer.Close()

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

	return err
}