func SelectorsForObject()

in pkg/polymorphichelpers/helpers.go [84:191]
100 lines of code
33 McCabe index (conditional complexity)

func SelectorsForObject(object runtime.Object) (namespace string, selector labels.Selector, err error) {
	switch t := object.(type) {
	case *extensionsv1beta1.ReplicaSet:
		namespace = t.Namespace
		selector, err = metav1.LabelSelectorAsSelector(t.Spec.Selector)
		if err != nil {
			return "", nil, fmt.Errorf("invalid label selector: %v", err)
		}
	case *appsv1.ReplicaSet:
		namespace = t.Namespace
		selector, err = metav1.LabelSelectorAsSelector(t.Spec.Selector)
		if err != nil {
			return "", nil, fmt.Errorf("invalid label selector: %v", err)
		}
	case *appsv1beta2.ReplicaSet:
		namespace = t.Namespace
		selector, err = metav1.LabelSelectorAsSelector(t.Spec.Selector)
		if err != nil {
			return "", nil, fmt.Errorf("invalid label selector: %v", err)
		}

	case *corev1.ReplicationController:
		namespace = t.Namespace
		selector = labels.SelectorFromSet(t.Spec.Selector)

	case *appsv1.StatefulSet:
		namespace = t.Namespace
		selector, err = metav1.LabelSelectorAsSelector(t.Spec.Selector)
		if err != nil {
			return "", nil, fmt.Errorf("invalid label selector: %v", err)
		}
	case *appsv1beta1.StatefulSet:
		namespace = t.Namespace
		selector, err = metav1.LabelSelectorAsSelector(t.Spec.Selector)
		if err != nil {
			return "", nil, fmt.Errorf("invalid label selector: %v", err)
		}
	case *appsv1beta2.StatefulSet:
		namespace = t.Namespace
		selector, err = metav1.LabelSelectorAsSelector(t.Spec.Selector)
		if err != nil {
			return "", nil, fmt.Errorf("invalid label selector: %v", err)
		}

	case *extensionsv1beta1.DaemonSet:
		namespace = t.Namespace
		selector, err = metav1.LabelSelectorAsSelector(t.Spec.Selector)
		if err != nil {
			return "", nil, fmt.Errorf("invalid label selector: %v", err)
		}
	case *appsv1.DaemonSet:
		namespace = t.Namespace
		selector, err = metav1.LabelSelectorAsSelector(t.Spec.Selector)
		if err != nil {
			return "", nil, fmt.Errorf("invalid label selector: %v", err)
		}
	case *appsv1beta2.DaemonSet:
		namespace = t.Namespace
		selector, err = metav1.LabelSelectorAsSelector(t.Spec.Selector)
		if err != nil {
			return "", nil, fmt.Errorf("invalid label selector: %v", err)
		}

	case *extensionsv1beta1.Deployment:
		namespace = t.Namespace
		selector, err = metav1.LabelSelectorAsSelector(t.Spec.Selector)
		if err != nil {
			return "", nil, fmt.Errorf("invalid label selector: %v", err)
		}
	case *appsv1.Deployment:
		namespace = t.Namespace
		selector, err = metav1.LabelSelectorAsSelector(t.Spec.Selector)
		if err != nil {
			return "", nil, fmt.Errorf("invalid label selector: %v", err)
		}
	case *appsv1beta1.Deployment:
		namespace = t.Namespace
		selector, err = metav1.LabelSelectorAsSelector(t.Spec.Selector)
		if err != nil {
			return "", nil, fmt.Errorf("invalid label selector: %v", err)
		}
	case *appsv1beta2.Deployment:
		namespace = t.Namespace
		selector, err = metav1.LabelSelectorAsSelector(t.Spec.Selector)
		if err != nil {
			return "", nil, fmt.Errorf("invalid label selector: %v", err)
		}

	case *batchv1.Job:
		namespace = t.Namespace
		selector, err = metav1.LabelSelectorAsSelector(t.Spec.Selector)
		if err != nil {
			return "", nil, fmt.Errorf("invalid label selector: %v", err)
		}

	case *corev1.Service:
		namespace = t.Namespace
		if t.Spec.Selector == nil || len(t.Spec.Selector) == 0 {
			return "", nil, fmt.Errorf("invalid service '%s': Service is defined without a selector", t.Name)
		}
		selector = labels.SelectorFromSet(t.Spec.Selector)

	default:
		return "", nil, fmt.Errorf("selector for %T not implemented", object)
	}

	return namespace, selector, nil
}