diff --git a/server_handler.go b/server_handler.go
index c228a73..6308760 100644
--- a/server_handler.go
+++ b/server_handler.go
@@ -7,8 +7,8 @@ import (
 )
 
 type ServerHandler interface {
-	RegisterCodec(codec protocol.ServerCodec, contentType string)
-	GetCodec(contentType string) (protocol.ServerCodec, error)
+	Init() error
+	OnStart()
 
 	OnPreRead(r io.Reader)
 	OnPostRead(r io.Reader)
@@ -18,4 +18,11 @@ type ServerHandler interface {
 
 	OnPreWriteError(w io.Writer, err error)
 	OnPostWriteError(w io.Writer, err error)
+
+	OnStop()
+
+	Validate()
+
+	RegisterCodec(codec protocol.ServerCodec, contentType string)
+	GetCodec(contentType string) (protocol.ServerCodec, error)
 }
diff --git a/server_handlers.go b/server_handlers.go
index 4a6c506..30c6e72 100644
--- a/server_handlers.go
+++ b/server_handlers.go
@@ -8,20 +8,23 @@ import (
 	"git.loafle.net/commons_go/rpc/protocol"
 )
 
+func NewServerHandler() ServerHandler {
+	sh := &ServerHandlers{}
+
+	return sh
+}
+
 type ServerHandlers struct {
 	codecs map[string]protocol.ServerCodec
 }
 
-// RegisterCodec adds a new codec to the server.
-//
-// Codecs are defined to process a given serialization scheme, e.g., JSON or
-// XML. A codec is chosen based on the "Content-Type" header from the request,
-// excluding the charset definition.
-func (sh *ServerHandlers) RegisterCodec(codec protocol.ServerCodec, contentType string) {
-	if nil == sh.codecs {
-		sh.codecs = make(map[string]protocol.ServerCodec)
-	}
-	sh.codecs[strings.ToLower(contentType)] = codec
+func (sh *ServerHandlers) Init() error {
+
+	return nil
+}
+
+func (sh *ServerHandlers) OnStart() {
+	// no op
 }
 
 func (sh *ServerHandlers) OnPreRead(r io.Reader) {
@@ -48,9 +51,25 @@ func (sh *ServerHandlers) OnPostWriteError(w io.Writer, err error) {
 	// no op
 }
 
+func (sh *ServerHandlers) OnStop() {
+	// no op
+}
+
 func (sh *ServerHandlers) Validate() {
 }
 
+// RegisterCodec adds a new codec to the server.
+//
+// Codecs are defined to process a given serialization scheme, e.g., JSON or
+// XML. A codec is chosen based on the "Content-Type" header from the request,
+// excluding the charset definition.
+func (sh *ServerHandlers) RegisterCodec(codec protocol.ServerCodec, contentType string) {
+	if nil == sh.codecs {
+		sh.codecs = make(map[string]protocol.ServerCodec)
+	}
+	sh.codecs[strings.ToLower(contentType)] = codec
+}
+
 func (sh *ServerHandlers) GetCodec(contentType string) (protocol.ServerCodec, error) {
 	var codec protocol.ServerCodec
 	if contentType == "" && len(sh.codecs) == 1 {