Rename IsEmpty to Empty

Signed-off-by: Kara Alexandra <kalexandra@us.ibm.com>

pkg/api/errors/errors.go

@@ -329,9 +329,9 @@ func NewGenericServerResponse(code int, verb string, qualifiedResource unversion
 		}
 	}
 	switch {
-	case !qualifiedResource.IsEmpty() && len(name) > 0:
+	case !qualifiedResource.Empty() && len(name) > 0:
 		message = fmt.Sprintf("%s (%s %s %s)", message, strings.ToLower(verb), qualifiedResource.String(), name)
-	case !qualifiedResource.IsEmpty():
+	case !qualifiedResource.Empty():
 		message = fmt.Sprintf("%s (%s %s)", message, strings.ToLower(verb), qualifiedResource.String())
 	}
 	var causes []unversioned.StatusCause

pkg/api/meta/restmapper.go

@@ -183,7 +183,7 @@ func (m *DefaultRESTMapper) ResourceSingularizer(resourceType string) (string, e
 		if !ok {
 			continue
 		}
-		if singular.IsEmpty() {
+		if singular.Empty() {
 			singular = currSingular
 			continue
 		}
@@ -193,7 +193,7 @@ func (m *DefaultRESTMapper) ResourceSingularizer(resourceType string) (string, e
 		}
 	}
 
-	if singular.IsEmpty() {
+	if singular.Empty() {
 		return resourceType, fmt.Errorf("no singular of resource %v has been defined", resourceType)
 	}
 

pkg/api/unversioned/group_version.go

@@ -50,7 +50,7 @@ func (gr GroupResource) WithVersion(version string) GroupVersionResource {
 	return GroupVersionResource{Group: gr.Group, Version: version, Resource: gr.Resource}
 }
 
-func (gr GroupResource) IsEmpty() bool {
+func (gr GroupResource) Empty() bool {
 	return len(gr.Group) == 0 && len(gr.Resource) == 0
 }
 
@@ -81,7 +81,7 @@ type GroupVersionResource struct {
 	Resource string `protobuf:"bytes,3,opt,name=resource"`
 }
 
-func (gvr GroupVersionResource) IsEmpty() bool {
+func (gvr GroupVersionResource) Empty() bool {
 	return len(gvr.Group) == 0 && len(gvr.Version) == 0 && len(gvr.Resource) == 0
 }
 
@@ -106,7 +106,7 @@ type GroupKind struct {
 	Kind  string `protobuf:"bytes,2,opt,name=kind"`
 }
 
-func (gk GroupKind) IsEmpty() bool {
+func (gk GroupKind) Empty() bool {
 	return len(gk.Group) == 0 && len(gk.Kind) == 0
 }
 
@@ -131,8 +131,8 @@ type GroupVersionKind struct {
 	Kind    string `protobuf:"bytes,3,opt,name=kind"`
 }
 
-// IsEmpty returns true if group, version, and kind are empty
+// Empty returns true if group, version, and kind are empty
-func (gvk GroupVersionKind) IsEmpty() bool {
+func (gvk GroupVersionKind) Empty() bool {
 	return len(gvk.Group) == 0 && len(gvk.Version) == 0 && len(gvk.Kind) == 0
 }
 
@@ -156,8 +156,8 @@ type GroupVersion struct {
 	Version string `protobuf:"bytes,2,opt,name=version"`
 }
 
-// IsEmpty returns true if group and version are empty
+// Empty returns true if group and version are empty
-func (gv GroupVersion) IsEmpty() bool {
+func (gv GroupVersion) Empty() bool {
 	return len(gv.Group) == 0 && len(gv.Version) == 0
 }
 
@@ -165,7 +165,7 @@ func (gv GroupVersion) IsEmpty() bool {
 // it returns "v1".
 func (gv GroupVersion) String() string {
 	// special case the internal apiVersion for the legacy kube types
-	if gv.IsEmpty() {
+	if gv.Empty() {
 		return ""
 	}
 

pkg/apiserver/api_installer.go

@@ -137,7 +137,7 @@ func (a *APIInstaller) getResourceKind(path string, storage rest.Storage) (unver
 			fqKindToRegister = a.group.GroupVersion.WithKind(fqKind.Kind)
 		}
 	}
-	if fqKindToRegister.IsEmpty() {
+	if fqKindToRegister.Empty() {
 		return unversioned.GroupVersionKind{}, fmt.Errorf("unable to locate fully qualified kind for %v: found %v when registering for %v", reflect.TypeOf(object), fqKinds, a.group.GroupVersion)
 	}
 	return fqKindToRegister, nil

pkg/client/typed/discovery/discovery_client.go

@@ -234,7 +234,7 @@ func (d *DiscoveryClient) ServerVersion() (*version.Info, error) {
 
 // SwaggerSchema retrieves and parses the swagger API schema the server supports.
 func (d *DiscoveryClient) SwaggerSchema(version unversioned.GroupVersion) (*swagger.ApiDeclaration, error) {
-	if version.IsEmpty() {
+	if version.Empty() {
 		return nil, fmt.Errorf("groupVersion cannot be empty")
 	}
 

pkg/kubectl/cmd/explain.go

@@ -84,7 +84,7 @@ func RunExplain(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []st
 	if fullySpecifiedGVR != nil {
 		gvk, _ = mapper.KindFor(*fullySpecifiedGVR)
 	}
-	if gvk.IsEmpty() {
+	if gvk.Empty() {
 		gvk, err = mapper.KindFor(groupResource.WithVersion(""))
 		if err != nil {
 			return err

pkg/kubectl/cmd/util/factory.go

@@ -1270,10 +1270,10 @@ func (f *Factory) PrinterForMapping(cmd *cobra.Command, mapping *meta.RESTMappin
 		if err != nil {
 			return nil, err
 		}
-		if version.IsEmpty() && mapping != nil {
+		if version.Empty() && mapping != nil {
 			version = mapping.GroupVersionKind.GroupVersion()
 		}
-		if version.IsEmpty() {
+		if version.Empty() {
 			return nil, fmt.Errorf("you must specify an output-version when using this output format")
 		}
 

pkg/kubectl/resource/builder.go

@@ -454,7 +454,7 @@ func (b *Builder) mappingFor(resourceArg string) (*meta.RESTMapping, error) {
 	if fullySpecifiedGVR != nil {
 		gvk, _ = b.mapper.KindFor(*fullySpecifiedGVR)
 	}
-	if gvk.IsEmpty() {
+	if gvk.Empty() {
 		var err error
 		gvk, err = b.mapper.KindFor(groupResource.WithVersion(""))
 		if err != nil {

pkg/kubectl/resource/result.go

@@ -250,7 +250,7 @@ func AsVersionedObjects(infos []*Info, version unversioned.GroupVersion, encoder
 
 		// objects that are not part of api.Scheme must be converted to JSON
 		// TODO: convert to map[string]interface{}, attach to runtime.Unknown?
-		if !version.IsEmpty() {
+		if !version.Empty() {
 			if _, _, err := api.Scheme.ObjectKinds(info.Object); runtime.IsNotRegisteredError(err) {
 				// TODO: ideally this would encode to version, but we don't expose multiple codecs here.
 				data, err := runtime.Encode(encoder, info.Object)
@@ -277,7 +277,7 @@ func AsVersionedObjects(infos []*Info, version unversioned.GroupVersion, encoder
 func tryConvert(converter runtime.ObjectConvertor, object runtime.Object, versions ...unversioned.GroupVersion) (runtime.Object, error) {
 	var last error
 	for _, version := range versions {
-		if version.IsEmpty() {
+		if version.Empty() {
 			return object, nil
 		}
 		obj, err := converter.ConvertToVersion(object, version)

pkg/kubectl/resource/visitor.go

@@ -385,7 +385,7 @@ func (v FlattenListVisitor) Visit(fn VisitorFunc) error {
 
 		// If we have a GroupVersionKind on the list, prioritize that when asking for info on the objects contained in the list
 		var preferredGVKs []unversioned.GroupVersionKind
-		if info.Mapping != nil && !info.Mapping.GroupVersionKind.IsEmpty() {
+		if info.Mapping != nil && !info.Mapping.GroupVersionKind.Empty() {
 			preferredGVKs = append(preferredGVKs, info.Mapping.GroupVersionKind)
 		}
 

pkg/registry/thirdpartyresourcedata/codec.go

@@ -517,7 +517,7 @@ func (t *thirdPartyResourceDataEncoder) Encode(obj runtime.Object, stream io.Wri
 			listItems[ix] = json.RawMessage(buff.Bytes())
 		}
 
-		if t.gvk.IsEmpty() {
+		if t.gvk.Empty() {
 			return fmt.Errorf("thirdPartyResourceDataEncoder was not given a target version")
 		}
 

pkg/runtime/unstructured.go

@@ -188,7 +188,7 @@ func (UnstructuredObjectConverter) Convert(in, out, context interface{}) error {
 }
 
 func (UnstructuredObjectConverter) ConvertToVersion(in Object, target GroupVersioner) (Object, error) {
-	if kind := in.GetObjectKind().GroupVersionKind(); !kind.IsEmpty() {
+	if kind := in.GetObjectKind().GroupVersionKind(); !kind.Empty() {
 		gvk, ok := target.KindForGroupVersionKinds([]unversioned.GroupVersionKind{kind})
 		if !ok {
 			// TODO: should this be a typed error?