diff options
author | HuabingZhao <zhao.huabing@zte.com.cn> | 2017-08-31 11:59:47 +0800 |
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committer | HuabingZhao <zhao.huabing@zte.com.cn> | 2017-08-31 12:00:09 +0800 |
commit | c0f3b093c704da85252044b3a177dbabab63c49a (patch) | |
tree | f6cb5d85315c307bcf4984ac04e76e84b9abeac6 /kube2msb/src/vendor/k8s.io/kubernetes/pkg/api/ref.go | |
parent | c1737d2abac61511e00f388538779d67464b8a98 (diff) |
add vendor package
Issue-Id: OOM-61
Change-Id: I251336e3b711b14f8ae9a8b0bf6055011a1d9bc8
Signed-off-by: HuabingZhao <zhao.huabing@zte.com.cn>
Diffstat (limited to 'kube2msb/src/vendor/k8s.io/kubernetes/pkg/api/ref.go')
-rw-r--r-- | kube2msb/src/vendor/k8s.io/kubernetes/pkg/api/ref.go | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/kube2msb/src/vendor/k8s.io/kubernetes/pkg/api/ref.go b/kube2msb/src/vendor/k8s.io/kubernetes/pkg/api/ref.go new file mode 100644 index 0000000..b864593 --- /dev/null +++ b/kube2msb/src/vendor/k8s.io/kubernetes/pkg/api/ref.go @@ -0,0 +1,130 @@ +/* +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 api + +import ( + "errors" + "fmt" + "net/url" + "strings" + + "k8s.io/kubernetes/pkg/api/meta" + "k8s.io/kubernetes/pkg/api/unversioned" + "k8s.io/kubernetes/pkg/runtime" +) + +var ( + // Errors that could be returned by GetReference. + ErrNilObject = errors.New("can't reference a nil object") + ErrNoSelfLink = errors.New("selfLink was empty, can't make reference") +) + +// GetReference returns an ObjectReference which refers to the given +// object, or an error if the object doesn't follow the conventions +// that would allow this. +// TODO: should take a meta.Interface see http://issue.k8s.io/7127 +func GetReference(obj runtime.Object) (*ObjectReference, error) { + if obj == nil { + return nil, ErrNilObject + } + if ref, ok := obj.(*ObjectReference); ok { + // Don't make a reference to a reference. + return ref, nil + } + + gvk := obj.GetObjectKind().GroupVersionKind() + + // if the object referenced is actually persisted, we can just get kind from meta + // if we are building an object reference to something not yet persisted, we should fallback to scheme + kind := gvk.Kind + if len(kind) == 0 { + // TODO: this is wrong + gvks, _, err := Scheme.ObjectKinds(obj) + if err != nil { + return nil, err + } + kind = gvks[0].Kind + } + + // An object that implements only List has enough metadata to build a reference + var listMeta meta.List + objectMeta, err := meta.Accessor(obj) + if err != nil { + listMeta, err = meta.ListAccessor(obj) + if err != nil { + return nil, err + } + } else { + listMeta = objectMeta + } + + // if the object referenced is actually persisted, we can also get version from meta + version := gvk.GroupVersion().String() + if len(version) == 0 { + selfLink := listMeta.GetSelfLink() + if len(selfLink) == 0 { + return nil, ErrNoSelfLink + } + selfLinkUrl, err := url.Parse(selfLink) + if err != nil { + return nil, err + } + // example paths: /<prefix>/<version>/* + parts := strings.Split(selfLinkUrl.Path, "/") + if len(parts) < 3 { + return nil, fmt.Errorf("unexpected self link format: '%v'; got version '%v'", selfLink, version) + } + version = parts[2] + } + + // only has list metadata + if objectMeta == nil { + return &ObjectReference{ + Kind: kind, + APIVersion: version, + ResourceVersion: listMeta.GetResourceVersion(), + }, nil + } + + return &ObjectReference{ + Kind: kind, + APIVersion: version, + Name: objectMeta.GetName(), + Namespace: objectMeta.GetNamespace(), + UID: objectMeta.GetUID(), + ResourceVersion: objectMeta.GetResourceVersion(), + }, nil +} + +// GetPartialReference is exactly like GetReference, but allows you to set the FieldPath. +func GetPartialReference(obj runtime.Object, fieldPath string) (*ObjectReference, error) { + ref, err := GetReference(obj) + if err != nil { + return nil, err + } + ref.FieldPath = fieldPath + return ref, nil +} + +// IsAnAPIObject allows clients to preemptively get a reference to an API object and pass it to places that +// intend only to get a reference to that object. This simplifies the event recording interface. +func (obj *ObjectReference) SetGroupVersionKind(gvk unversioned.GroupVersionKind) { + obj.APIVersion, obj.Kind = gvk.ToAPIVersionAndKind() +} +func (obj *ObjectReference) GroupVersionKind() unversioned.GroupVersionKind { + return unversioned.FromAPIVersionAndKind(obj.APIVersion, obj.Kind) +} |