NewRouter supports custom backend clients

NewRouter needs to support custom clients
This is needed where the backend clients are mocked
and we need url path parameters to be available in our
unit tests.
Using the same router code allows us to do this.

Issue-ID: MULTICLOUD-547
Change-Id: Id51b6f0a9afe4965efaf2611fc642bccb9ac1d39
Signed-off-by: Kiran Kamineni <kiran.k.kamineni@intel.com>

3 files changed, 23 insertions, 16 deletions

diff --git a/src/k8splugin/api/api.go b/src/k8splugin/api/api.go
index b566609b..67a91282 100644
--- a/src/k8splugin/api/api.go
+++ b/src/k8splugin/api/api.go
@@ -20,7 +20,8 @@ import (
 )
 
 // NewRouter creates a router instance that serves the VNFInstance web methods
-func NewRouter(kubeconfig string) *mux.Router {
+func NewRouter(kubeconfig string, defClient rb.DefinitionManager,
+	profileClient rb.ProfileManager) *mux.Router {
 	router := mux.NewRouter()
 
 	vnfInstanceHandler := router.PathPrefix("/v1/vnf_instances").Subrouter()
@@ -30,22 +31,28 @@ func NewRouter(kubeconfig string) *mux.Router {
 	vnfInstanceHandler.HandleFunc("/{cloudRegionID}/{namespace}/{externalVNFID}", GetHandler).Methods("GET")
 
 	//rbd is resource bundle definition
+	if defClient == nil {
+		defClient = rb.NewDefinitionClient()
+	}
+	defHandler := rbDefinitionHandler{client: defClient}
 	resRouter := router.PathPrefix("/v1/rb").Subrouter()
-	rbdef := rbDefinitionHandler{client: rb.NewDefinitionClient()}
-	resRouter.HandleFunc("/definition", rbdef.createHandler).Methods("POST")
-	resRouter.HandleFunc("/definition/{rbdID}/content", rbdef.uploadHandler).Methods("POST")
-	resRouter.HandleFunc("/definition", rbdef.listHandler).Methods("GET")
-	resRouter.HandleFunc("/definition/{rbdID}", rbdef.getHandler).Methods("GET")
-	resRouter.HandleFunc("/definition/{rbdID}", rbdef.deleteHandler).Methods("DELETE")
+	resRouter.HandleFunc("/definition", defHandler.createHandler).Methods("POST")
+	resRouter.HandleFunc("/definition/{rbdID}/content", defHandler.uploadHandler).Methods("POST")
+	resRouter.HandleFunc("/definition", defHandler.listHandler).Methods("GET")
+	resRouter.HandleFunc("/definition/{rbdID}", defHandler.getHandler).Methods("GET")
+	resRouter.HandleFunc("/definition/{rbdID}", defHandler.deleteHandler).Methods("DELETE")
 
 	//rbp is resource bundle profile
-	rbprofile := rbProfileHandler{client: rb.NewProfileClient()}
-	resRouter.HandleFunc("/profile", rbprofile.createHandler).Methods("POST")
-	resRouter.HandleFunc("/profile/{rbpID}/content", rbprofile.uploadHandler).Methods("POST")
-	resRouter.HandleFunc("/profile/help", rbprofile.helpHandler).Methods("GET")
-	resRouter.HandleFunc("/profile", rbprofile.listHandler).Methods("GET")
-	resRouter.HandleFunc("/profile/{rbpID}", rbprofile.getHandler).Methods("GET")
-	resRouter.HandleFunc("/profile/{rbpID}", rbprofile.deleteHandler).Methods("DELETE")
+	if profileClient == nil {
+		profileClient = rb.NewProfileClient()
+	}
+	profileHandler := rbProfileHandler{client: profileClient}
+	resRouter.HandleFunc("/profile", profileHandler.createHandler).Methods("POST")
+	resRouter.HandleFunc("/profile/{rbpID}/content", profileHandler.uploadHandler).Methods("POST")
+	resRouter.HandleFunc("/profile/help", profileHandler.helpHandler).Methods("GET")
+	resRouter.HandleFunc("/profile", profileHandler.listHandler).Methods("GET")
+	resRouter.HandleFunc("/profile/{rbpID}", profileHandler.getHandler).Methods("GET")
+	resRouter.HandleFunc("/profile/{rbpID}", profileHandler.deleteHandler).Methods("DELETE")
 
 	// (TODO): Fix update method
 	// vnfInstanceHandler.HandleFunc("/{vnfInstanceId}", UpdateHandler).Methods("PUT")
diff --git a/src/k8splugin/api/handler_test.go b/src/k8splugin/api/handler_test.go
index 2bac3111..40d198b7 100644
--- a/src/k8splugin/api/handler_test.go
+++ b/src/k8splugin/api/handler_test.go
@@ -48,7 +48,7 @@ func (c *mockCSAR) DestroyVNF(data map[string][]string, namespace string,
 }
 
 func executeRequest(req *http.Request) *httptest.ResponseRecorder {
-	router := NewRouter("")
+	router := NewRouter("", nil, nil)
 	recorder := httptest.NewRecorder()
 	router.ServeHTTP(recorder, req)
 
diff --git a/src/k8splugin/cmd/main.go b/src/k8splugin/cmd/main.go
index c07446a7..e0e715be 100644
--- a/src/k8splugin/cmd/main.go
+++ b/src/k8splugin/cmd/main.go
@@ -43,7 +43,7 @@ func main() {
 		log.Fatal(err)
 	}
 
-	httpRouter := api.NewRouter(kubeconfig)
+	httpRouter := api.NewRouter(kubeconfig, nil, nil)
 	loggedRouter := handlers.LoggingHandler(os.Stdout, httpRouter)
 	log.Println("Starting Kubernetes Multicloud API")