feat: add go vehicle identity resolver

go/vehicle-gateway/internal/gateway/tcp_server.go

@@ -14,6 +14,7 @@ import (
 
 	"lingniu-vehicle-ingest/go/vehicle-gateway/internal/envelope"
 	"lingniu-vehicle-ingest/go/vehicle-gateway/internal/eventbus"
+	"lingniu-vehicle-ingest/go/vehicle-gateway/internal/identity"
 )
 
 type FrameExtractor func([]byte) (frames [][]byte, remainder []byte, err error)
@@ -30,6 +31,7 @@ type TCPProtocol struct {
 type TCPServer struct {
 	protocol       TCPProtocol
 	sink           eventbus.Sink
+	resolver       identity.Resolver
 	logger         *slog.Logger
 	readBufferSize int
 	idleTimeout    time.Duration
@@ -39,6 +41,7 @@ type TCPServer struct {
 type TCPServerConfig struct {
 	Protocol       TCPProtocol
 	Sink           eventbus.Sink
+	Resolver       identity.Resolver
 	Logger         *slog.Logger
 	ReadBufferSize int
 	IdleTimeout    time.Duration
@@ -64,6 +67,9 @@ func NewTCPServer(cfg TCPServerConfig) (*TCPServer, error) {
 	if cfg.Logger == nil {
 		cfg.Logger = slog.Default()
 	}
+	if cfg.Resolver == nil {
+		cfg.Resolver = identity.NoopResolver{}
+	}
 	if cfg.ReadBufferSize <= 0 {
 		cfg.ReadBufferSize = 32 * 1024
 	}
@@ -76,6 +82,7 @@ func NewTCPServer(cfg TCPServerConfig) (*TCPServer, error) {
 	return &TCPServer{
 		protocol:       cfg.Protocol,
 		sink:           cfg.Sink,
+		resolver:       cfg.Resolver,
 		logger:         cfg.Logger,
 		readBufferSize: cfg.ReadBufferSize,
 		idleTimeout:    cfg.IdleTimeout,
@@ -181,6 +188,18 @@ func (s *TCPServer) handleFrame(ctx context.Context, raw []byte, source string)
 			ParseError:     err.Error(),
 		}
 		env.EventID = env.StableEventID()
+	} else {
+		resolved, resolveErr := s.resolver.Resolve(ctx, env)
+		if resolveErr != nil {
+			s.logger.Warn("identity resolve failed", "protocol", s.protocol.Protocol, "event_id", env.StableEventID(), "error", resolveErr)
+			if env.Parsed == nil {
+				env.Parsed = map[string]any{}
+			}
+			env.Parsed["identity"] = map[string]any{"resolved": false, "error": resolveErr.Error()}
+			env.ParseStatus = envelope.ParsePartial
+		} else {
+			env = resolved
+		}
 	}
 
 	if err := s.sink.PublishRaw(ctx, env); err != nil {