// 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)
}
}
func (s *Server) handle(origCtx context.Context, handler TChanServer, 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.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)
if err := writer.Close(); err != nil {
return err
}
return nil
}
