func()

in pkg/providers/apisix/apisix_consumer.go [91:178]
78 lines of code
13 McCabe index (conditional complexity)

func (c *apisixConsumerController) sync(ctx context.Context, ev *types.Event) error {
	event := ev.Object.(kube.ApisixConsumerEvent)
	key := event.Key
	namespace, name, err := cache.SplitMetaNamespaceKey(key)
	if err != nil {
		log.Errorf("found ApisixConsumer resource with invalid meta namespace key %s: %s", key, err)
		return err
	}

	var multiVersioned kube.ApisixConsumer
	switch event.GroupVersion {
	case config.ApisixV2:
		multiVersioned, err = c.ApisixConsumerLister.V2(namespace, name)
	default:
		return fmt.Errorf("unsupported ApisixConsumer group version %s", event.GroupVersion)
	}

	if err != nil {
		if !k8serrors.IsNotFound(err) {
			log.Errorw("failed to get ApisixConsumer",
				zap.Error(err),
				zap.String("key", key),
				zap.String("version", event.GroupVersion),
			)
			return err
		}
		if ev.Type == types.EventSync {
			// ignore not found error in delay sync
			return nil
		}
		if ev.Type != types.EventDelete {
			log.Warnw("ApisixConsumer was deleted before it can be delivered",
				zap.String("key", key),
				zap.String("version", event.GroupVersion),
			)
			// Don't need to retry.
			return nil
		}
	}
	if ev.Type == types.EventDelete {
		if multiVersioned != nil {
			// We still find the resource while we are processing the DELETE event,
			// that means object with same namespace and name was created, discarding
			// this stale DELETE event.
			log.Warnf("discard the stale ApisixConsumer delete event since the %s exists", key)
			return nil
		}
		multiVersioned = ev.Tombstone.(kube.ApisixConsumer)
	}

	var errRecord error
	switch event.GroupVersion {
	case config.ApisixV2:
		ac := multiVersioned.V2()

		consumer, err := c.translator.TranslateApisixConsumerV2(ac)
		if err != nil {
			log.Errorw("failed to translate ApisixConsumer",
				zap.Error(err),
				zap.Any("ApisixConsumer", ac),
			)
			errRecord = err
			goto updateStatus
		}
		log.Debugw("got consumer object from ApisixConsumer",
			zap.Any("consumer", consumer),
			zap.Any("ApisixConsumer", ac),
		)

		if err := c.SyncConsumer(ctx, consumer, ev.Type); err != nil {
			log.Errorw("failed to sync Consumer to APISIX",
				zap.Error(err),
				zap.Any("consumer", consumer),
			)
			errRecord = err
			goto updateStatus
		}
	}
updateStatus:
	c.pool.Queue(func(wu pool.WorkUnit) (interface{}, error) {
		if wu.IsCancelled() {
			return nil, nil
		}
		c.updateStatus(multiVersioned, errRecord)
		return true, nil
	})
	return errRecord
}