change RouterFactory method name

cluster/router.go

@@ -25,7 +25,7 @@ import (
 // Extension - Router
 
 type RouterFactory interface {
-	GetRouter(common.URL) (Router, error)
+	Router(common.URL) (Router, error)
 }
 
 type Router interface {

cluster/router/router_factory.go

@@ -16,6 +16,6 @@ type ConditionRouterFactory struct {
 func NewConditionRouterFactory() cluster.RouterFactory {
 	return ConditionRouterFactory{}
 }
-func (c ConditionRouterFactory) GetRouter(url common.URL) (cluster.Router, error) {
+func (c ConditionRouterFactory) Router(url common.URL) (cluster.Router, error) {
 	return newConditionRouter(url)
 }