优化结构

pkg/mq/mq.go

@@ -12,6 +12,7 @@ var ErrUnavailable = errors.New("message broker unavailable")
 
 const (
 	ProviderEMQX     = "emqx"
+	ProviderKafka    = "kafka"
 	ProviderRabbitMQ = "rabbitmq"
 )
 

pkg/mq/subscription.go

@@ -12,7 +12,7 @@ func NormalizeSubscriptionSet(set SubscriptionSet) (SubscriptionSet, error) {
 	if set.Owner == "" {
 		return SubscriptionSet{}, fmt.Errorf("mq subscription owner is empty")
 	}
-	if set.Provider != ProviderEMQX && set.Provider != ProviderRabbitMQ {
+	if set.Provider != ProviderEMQX && set.Provider != ProviderKafka && set.Provider != ProviderRabbitMQ {
 		return SubscriptionSet{}, fmt.Errorf("unsupported mq provider %q", set.Provider)
 	}
 	if len(set.Topics) == 0 {