added event to app framework, fixed typo, tested and working

application-framework/event/type.go

@@ -12,6 +12,8 @@ const (
 	Update
 	// Delete is a delete event.
 	Delete
+	// Subscribe is a gNMI subscribe event.
+	Subscribe
 )
 
 // String implements the stringer interface for types.
@@ -23,6 +25,8 @@ func (t Type) String() string {
 		return "update"
 	case Delete:
 		return "delete"
+	case Subscribe:
+		return "subscribe"
 	}
 
 	return "unknown"
@@ -30,9 +34,10 @@ func (t Type) String() string {
 
 var (
 	typeLookup = map[string]Type{
-		"add":    Add,
-		"update": Update,
-		"delete": Delete,
+		"add":       Add,
+		"update":    Update,
+		"delete":    Delete,
+		"subscribe": Subscribe,
 	}
 )
 

controller/event/event.go

@@ -20,7 +20,7 @@ const (
 	// TypeDelete is a delete event.
 	TypeDelete = "delete"
 
-	// TypeSusbcribe is a gNMI subscribe event.
+	// TypeSubscribe is a gNMI subscribe event.
 	TypeSubscribe = "subscribe"
 )