add router handler option

pkg/handler/relay/handler.go

@@ -35,9 +35,7 @@ func NewHandler(opts ...handler.Option) handler.Handler {
 
 	return &relayHandler{
 		bypass: options.Bypass,
-		router: (&chain.Router{}).
-			WithLogger(options.Logger).
-			WithResolver(options.Resolver),
+		router: options.Router,
 		logger: options.Logger,
 	}
 }
@@ -47,16 +45,9 @@ func (h *relayHandler) Init(md md.Metadata) (err error) {
 		return err
 	}
 
-	h.router.WithRetry(h.md.retryCount)
-
 	return nil
 }
 
-// WithChain implements chain.Chainable interface
-func (h *relayHandler) WithChain(chain *chain.Chain) {
-	h.router.WithChain(chain)
-}
-
 // Forward implements handler.Forwarder.
 func (h *relayHandler) Forward(group *chain.NodeGroup) {
 	h.group = group

pkg/handler/relay/metadata.go

@@ -12,7 +12,6 @@ import (
 type metadata struct {
 	authenticator auth.Authenticator
 	readTimeout   time.Duration
-	retryCount    int
 	enableBind    bool
 	udpBufferSize int
 	noDelay       bool
@@ -22,7 +21,6 @@ func (h *relayHandler) parseMetadata(md mdata.Metadata) (err error) {
 	const (
 		users         = "users"
 		readTimeout   = "readTimeout"
-		retryCount    = "retry"
 		enableBind    = "bind"
 		udpBufferSize = "udpBufferSize"
 		noDelay       = "nodelay"
@@ -42,7 +40,6 @@ func (h *relayHandler) parseMetadata(md mdata.Metadata) (err error) {
 	}
 
 	h.md.readTimeout = mdata.GetDuration(md, readTimeout)
-	h.md.retryCount = mdata.GetInt(md, retryCount)
 	h.md.enableBind = mdata.GetBool(md, enableBind)
 	h.md.noDelay = mdata.GetBool(md, noDelay)