Resolve "Add an option to send gNMI Subscribe requests via SBI"

Description

#227 (closed)

controller/nucleus/deviceWatcher.go

@@ -9,9 +9,9 @@ import (
 	"code.fbi.h-da.de/danet/gosdn/controller/nucleus/errors"
 	"code.fbi.h-da.de/danet/gosdn/controller/nucleus/types"
 	"code.fbi.h-da.de/danet/gosdn/forks/goarista/gnmi"
+	"github.com/google/uuid"
 	gpb "github.com/openconfig/gnmi/proto/gnmi"
 	log "github.com/sirupsen/logrus"
-	"go.mongodb.org/mongo-driver/x/mongo/driver/uuid"
 )
 
 const (
@@ -67,11 +67,7 @@ func (d *DeviceWatcher) SubToDevices(paths [][]string, opts *gnmi.SubscribeOptio
 
 func (d *DeviceWatcher) subscribeToPndDevices(pndID string, devices []device.Device, opts *gnmi.SubscribeOptions) {
 	for _, device := range devices {
-		subID, err := uuid.New()
-		if err != nil {
-			log.Error(err)
-			return
-		}
+		subID := uuid.New()
 
 		stopContext, cancel := context.WithCancel(context.Background())
 		d.addToDeviceSubscriptions(subID, &deviceSubscriptionHelper{
@@ -87,7 +83,7 @@ func (d *DeviceWatcher) callSubscribe(stopContext context.Context, pndID string,
 	gNMIOptionsCtx = context.WithValue(gNMIOptionsCtx, types.CtxKeyOpts, opts)
 
 	// SubscriptionInformation conatins pnd ID, device ID and name to be used in the internal subscribe to check
-	// from which device a response or a problem occurs in case of an error
+	// from which device a response was sent
 	if err := device.Transport().SubscribeInternal(gNMIOptionsCtx, handleSubscribeResponse, &transport.SubscriptionInformation{
 		PndID:       pndID,
 		DeviceID:    device.ID().String(),