diff options
Diffstat (limited to 'kube2msb/src/vendor/k8s.io/kubernetes/pkg/api/meta/meta.go')
| -rw-r--r-- | kube2msb/src/vendor/k8s.io/kubernetes/pkg/api/meta/meta.go | 567 |
1 files changed, 0 insertions, 567 deletions
diff --git a/kube2msb/src/vendor/k8s.io/kubernetes/pkg/api/meta/meta.go b/kube2msb/src/vendor/k8s.io/kubernetes/pkg/api/meta/meta.go deleted file mode 100644 index 876aa4f..0000000 --- a/kube2msb/src/vendor/k8s.io/kubernetes/pkg/api/meta/meta.go +++ /dev/null @@ -1,567 +0,0 @@ -/* -Copyright 2014 The Kubernetes Authors. - -Licensed under the Apache License, Version 2.0 (the "License"); -you may not use this file except in compliance with the License. -You may obtain a copy of the License at - - http://www.apache.org/licenses/LICENSE-2.0 - -Unless required by applicable law or agreed to in writing, software -distributed under the License is distributed on an "AS IS" BASIS, -WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -See the License for the specific language governing permissions and -limitations under the License. -*/ - -package meta - -import ( - "fmt" - "reflect" - - "k8s.io/kubernetes/pkg/api/meta/metatypes" - "k8s.io/kubernetes/pkg/api/unversioned" - "k8s.io/kubernetes/pkg/conversion" - "k8s.io/kubernetes/pkg/runtime" - "k8s.io/kubernetes/pkg/types" - - "github.com/golang/glog" -) - -// errNotList is returned when an object implements the Object style interfaces but not the List style -// interfaces. -var errNotList = fmt.Errorf("object does not implement the List interfaces") - -// ListAccessor returns a List interface for the provided object or an error if the object does -// not provide List. -// IMPORTANT: Objects are a superset of lists, so all Objects return List metadata. Do not use this -// check to determine whether an object *is* a List. -// TODO: return bool instead of error -func ListAccessor(obj interface{}) (List, error) { - switch t := obj.(type) { - case List: - return t, nil - case unversioned.List: - return t, nil - case ListMetaAccessor: - if m := t.GetListMeta(); m != nil { - return m, nil - } - return nil, errNotList - case unversioned.ListMetaAccessor: - if m := t.GetListMeta(); m != nil { - return m, nil - } - return nil, errNotList - case Object: - return t, nil - case ObjectMetaAccessor: - if m := t.GetObjectMeta(); m != nil { - return m, nil - } - return nil, errNotList - default: - return nil, errNotList - } -} - -// errNotObject is returned when an object implements the List style interfaces but not the Object style -// interfaces. -var errNotObject = fmt.Errorf("object does not implement the Object interfaces") - -// Accessor takes an arbitrary object pointer and returns meta.Interface. -// obj must be a pointer to an API type. An error is returned if the minimum -// required fields are missing. Fields that are not required return the default -// value and are a no-op if set. -// TODO: return bool instead of error -func Accessor(obj interface{}) (Object, error) { - switch t := obj.(type) { - case Object: - return t, nil - case ObjectMetaAccessor: - if m := t.GetObjectMeta(); m != nil { - return m, nil - } - return nil, errNotObject - case List, unversioned.List, ListMetaAccessor, unversioned.ListMetaAccessor: - return nil, errNotObject - default: - return nil, errNotObject - } -} - -// TypeAccessor returns an interface that allows retrieving and modifying the APIVersion -// and Kind of an in-memory internal object. -// TODO: this interface is used to test code that does not have ObjectMeta or ListMeta -// in round tripping (objects which can use apiVersion/kind, but do not fit the Kube -// api conventions). -func TypeAccessor(obj interface{}) (Type, error) { - if typed, ok := obj.(runtime.Object); ok { - return objectAccessor{typed}, nil - } - v, err := conversion.EnforcePtr(obj) - if err != nil { - return nil, err - } - t := v.Type() - if v.Kind() != reflect.Struct { - return nil, fmt.Errorf("expected struct, but got %v: %v (%#v)", v.Kind(), t, v.Interface()) - } - - typeMeta := v.FieldByName("TypeMeta") - if !typeMeta.IsValid() { - return nil, fmt.Errorf("struct %v lacks embedded TypeMeta type", t) - } - a := &genericAccessor{} - if err := extractFromTypeMeta(typeMeta, a); err != nil { - return nil, fmt.Errorf("unable to find type fields on %#v: %v", typeMeta, err) - } - return a, nil -} - -type objectAccessor struct { - runtime.Object -} - -func (obj objectAccessor) GetKind() string { - return obj.GetObjectKind().GroupVersionKind().Kind -} - -func (obj objectAccessor) SetKind(kind string) { - gvk := obj.GetObjectKind().GroupVersionKind() - gvk.Kind = kind - obj.GetObjectKind().SetGroupVersionKind(gvk) -} - -func (obj objectAccessor) GetAPIVersion() string { - return obj.GetObjectKind().GroupVersionKind().GroupVersion().String() -} - -func (obj objectAccessor) SetAPIVersion(version string) { - gvk := obj.GetObjectKind().GroupVersionKind() - gv, err := unversioned.ParseGroupVersion(version) - if err != nil { - gv = unversioned.GroupVersion{Version: version} - } - gvk.Group, gvk.Version = gv.Group, gv.Version - obj.GetObjectKind().SetGroupVersionKind(gvk) -} - -// NewAccessor returns a MetadataAccessor that can retrieve -// or manipulate resource version on objects derived from core API -// metadata concepts. -func NewAccessor() MetadataAccessor { - return resourceAccessor{} -} - -// resourceAccessor implements ResourceVersioner and SelfLinker. -type resourceAccessor struct{} - -func (resourceAccessor) Kind(obj runtime.Object) (string, error) { - return objectAccessor{obj}.GetKind(), nil -} - -func (resourceAccessor) SetKind(obj runtime.Object, kind string) error { - objectAccessor{obj}.SetKind(kind) - return nil -} - -func (resourceAccessor) APIVersion(obj runtime.Object) (string, error) { - return objectAccessor{obj}.GetAPIVersion(), nil -} - -func (resourceAccessor) SetAPIVersion(obj runtime.Object, version string) error { - objectAccessor{obj}.SetAPIVersion(version) - return nil -} - -func (resourceAccessor) Namespace(obj runtime.Object) (string, error) { - accessor, err := Accessor(obj) - if err != nil { - return "", err - } - return accessor.GetNamespace(), nil -} - -func (resourceAccessor) SetNamespace(obj runtime.Object, namespace string) error { - accessor, err := Accessor(obj) - if err != nil { - return err - } - accessor.SetNamespace(namespace) - return nil -} - -func (resourceAccessor) Name(obj runtime.Object) (string, error) { - accessor, err := Accessor(obj) - if err != nil { - return "", err - } - return accessor.GetName(), nil -} - -func (resourceAccessor) SetName(obj runtime.Object, name string) error { - accessor, err := Accessor(obj) - if err != nil { - return err - } - accessor.SetName(name) - return nil -} - -func (resourceAccessor) GenerateName(obj runtime.Object) (string, error) { - accessor, err := Accessor(obj) - if err != nil { - return "", err - } - return accessor.GetGenerateName(), nil -} - -func (resourceAccessor) SetGenerateName(obj runtime.Object, name string) error { - accessor, err := Accessor(obj) - if err != nil { - return err - } - accessor.SetGenerateName(name) - return nil -} - -func (resourceAccessor) UID(obj runtime.Object) (types.UID, error) { - accessor, err := Accessor(obj) - if err != nil { - return "", err - } - return accessor.GetUID(), nil -} - -func (resourceAccessor) SetUID(obj runtime.Object, uid types.UID) error { - accessor, err := Accessor(obj) - if err != nil { - return err - } - accessor.SetUID(uid) - return nil -} - -func (resourceAccessor) SelfLink(obj runtime.Object) (string, error) { - accessor, err := ListAccessor(obj) - if err != nil { - return "", err - } - return accessor.GetSelfLink(), nil -} - -func (resourceAccessor) SetSelfLink(obj runtime.Object, selfLink string) error { - accessor, err := ListAccessor(obj) - if err != nil { - return err - } - accessor.SetSelfLink(selfLink) - return nil -} - -func (resourceAccessor) Labels(obj runtime.Object) (map[string]string, error) { - accessor, err := Accessor(obj) - if err != nil { - return nil, err - } - return accessor.GetLabels(), nil -} - -func (resourceAccessor) SetLabels(obj runtime.Object, labels map[string]string) error { - accessor, err := Accessor(obj) - if err != nil { - return err - } - accessor.SetLabels(labels) - return nil -} - -func (resourceAccessor) Annotations(obj runtime.Object) (map[string]string, error) { - accessor, err := Accessor(obj) - if err != nil { - return nil, err - } - return accessor.GetAnnotations(), nil -} - -func (resourceAccessor) SetAnnotations(obj runtime.Object, annotations map[string]string) error { - accessor, err := Accessor(obj) - if err != nil { - return err - } - accessor.SetAnnotations(annotations) - return nil -} - -func (resourceAccessor) ResourceVersion(obj runtime.Object) (string, error) { - accessor, err := ListAccessor(obj) - if err != nil { - return "", err - } - return accessor.GetResourceVersion(), nil -} - -func (resourceAccessor) SetResourceVersion(obj runtime.Object, version string) error { - accessor, err := ListAccessor(obj) - if err != nil { - return err - } - accessor.SetResourceVersion(version) - return nil -} - -// extractFromOwnerReference extracts v to o. v is the OwnerReferences field of an object. -func extractFromOwnerReference(v reflect.Value, o *metatypes.OwnerReference) error { - if err := runtime.Field(v, "APIVersion", &o.APIVersion); err != nil { - return err - } - if err := runtime.Field(v, "Kind", &o.Kind); err != nil { - return err - } - if err := runtime.Field(v, "Name", &o.Name); err != nil { - return err - } - if err := runtime.Field(v, "UID", &o.UID); err != nil { - return err - } - var controllerPtr *bool - if err := runtime.Field(v, "Controller", &controllerPtr); err != nil { - return err - } - if controllerPtr != nil { - controller := *controllerPtr - o.Controller = &controller - } - return nil -} - -// setOwnerReference sets v to o. v is the OwnerReferences field of an object. -func setOwnerReference(v reflect.Value, o *metatypes.OwnerReference) error { - if err := runtime.SetField(o.APIVersion, v, "APIVersion"); err != nil { - return err - } - if err := runtime.SetField(o.Kind, v, "Kind"); err != nil { - return err - } - if err := runtime.SetField(o.Name, v, "Name"); err != nil { - return err - } - if err := runtime.SetField(o.UID, v, "UID"); err != nil { - return err - } - if o.Controller != nil { - controller := *(o.Controller) - if err := runtime.SetField(&controller, v, "Controller"); err != nil { - return err - } - } - return nil -} - -// genericAccessor contains pointers to strings that can modify an arbitrary -// struct and implements the Accessor interface. -type genericAccessor struct { - namespace *string - name *string - generateName *string - uid *types.UID - apiVersion *string - kind *string - resourceVersion *string - selfLink *string - creationTimestamp *unversioned.Time - deletionTimestamp **unversioned.Time - labels *map[string]string - annotations *map[string]string - ownerReferences reflect.Value - finalizers *[]string -} - -func (a genericAccessor) GetNamespace() string { - if a.namespace == nil { - return "" - } - return *a.namespace -} - -func (a genericAccessor) SetNamespace(namespace string) { - if a.namespace == nil { - return - } - *a.namespace = namespace -} - -func (a genericAccessor) GetName() string { - if a.name == nil { - return "" - } - return *a.name -} - -func (a genericAccessor) SetName(name string) { - if a.name == nil { - return - } - *a.name = name -} - -func (a genericAccessor) GetGenerateName() string { - if a.generateName == nil { - return "" - } - return *a.generateName -} - -func (a genericAccessor) SetGenerateName(generateName string) { - if a.generateName == nil { - return - } - *a.generateName = generateName -} - -func (a genericAccessor) GetUID() types.UID { - if a.uid == nil { - return "" - } - return *a.uid -} - -func (a genericAccessor) SetUID(uid types.UID) { - if a.uid == nil { - return - } - *a.uid = uid -} - -func (a genericAccessor) GetAPIVersion() string { - return *a.apiVersion -} - -func (a genericAccessor) SetAPIVersion(version string) { - *a.apiVersion = version -} - -func (a genericAccessor) GetKind() string { - return *a.kind -} - -func (a genericAccessor) SetKind(kind string) { - *a.kind = kind -} - -func (a genericAccessor) GetResourceVersion() string { - return *a.resourceVersion -} - -func (a genericAccessor) SetResourceVersion(version string) { - *a.resourceVersion = version -} - -func (a genericAccessor) GetSelfLink() string { - return *a.selfLink -} - -func (a genericAccessor) SetSelfLink(selfLink string) { - *a.selfLink = selfLink -} - -func (a genericAccessor) GetCreationTimestamp() unversioned.Time { - return *a.creationTimestamp -} - -func (a genericAccessor) SetCreationTimestamp(timestamp unversioned.Time) { - *a.creationTimestamp = timestamp -} - -func (a genericAccessor) GetDeletionTimestamp() *unversioned.Time { - return *a.deletionTimestamp -} - -func (a genericAccessor) SetDeletionTimestamp(timestamp *unversioned.Time) { - *a.deletionTimestamp = timestamp -} - -func (a genericAccessor) GetLabels() map[string]string { - if a.labels == nil { - return nil - } - return *a.labels -} - -func (a genericAccessor) SetLabels(labels map[string]string) { - *a.labels = labels -} - -func (a genericAccessor) GetAnnotations() map[string]string { - if a.annotations == nil { - return nil - } - return *a.annotations -} - -func (a genericAccessor) SetAnnotations(annotations map[string]string) { - if a.annotations == nil { - emptyAnnotations := make(map[string]string) - a.annotations = &emptyAnnotations - } - *a.annotations = annotations -} - -func (a genericAccessor) GetFinalizers() []string { - if a.finalizers == nil { - return nil - } - return *a.finalizers -} - -func (a genericAccessor) SetFinalizers(finalizers []string) { - *a.finalizers = finalizers -} - -func (a genericAccessor) GetOwnerReferences() []metatypes.OwnerReference { - var ret []metatypes.OwnerReference - s := a.ownerReferences - if s.Kind() != reflect.Ptr || s.Elem().Kind() != reflect.Slice { - glog.Errorf("expect %v to be a pointer to slice", s) - return ret - } - s = s.Elem() - // Set the capacity to one element greater to avoid copy if the caller later append an element. - ret = make([]metatypes.OwnerReference, s.Len(), s.Len()+1) - for i := 0; i < s.Len(); i++ { - if err := extractFromOwnerReference(s.Index(i), &ret[i]); err != nil { - glog.Errorf("extractFromOwnerReference failed: %v", err) - return ret - } - } - return ret -} - -func (a genericAccessor) SetOwnerReferences(references []metatypes.OwnerReference) { - s := a.ownerReferences - if s.Kind() != reflect.Ptr || s.Elem().Kind() != reflect.Slice { - glog.Errorf("expect %v to be a pointer to slice", s) - } - s = s.Elem() - newReferences := reflect.MakeSlice(s.Type(), len(references), len(references)) - for i := 0; i < len(references); i++ { - if err := setOwnerReference(newReferences.Index(i), &references[i]); err != nil { - glog.Errorf("setOwnerReference failed: %v", err) - return - } - } - s.Set(newReferences) -} - -// extractFromTypeMeta extracts pointers to version and kind fields from an object -func extractFromTypeMeta(v reflect.Value, a *genericAccessor) error { - if err := runtime.FieldPtr(v, "APIVersion", &a.apiVersion); err != nil { - return err - } - if err := runtime.FieldPtr(v, "Kind", &a.kind); err != nil { - return err - } - return nil -} |