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move ref.go to its own subpackage

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Kubernetes-commit: d9920c53a575a7c017a9cd120220ef2ad761a962
This commit is contained in:
Chao Xu 2017-04-10 14:20:02 -07:00 committed by Kubernetes Publisher
parent 449f25e669
commit 5b1ad11ba7
4 changed files with 64 additions and 142 deletions
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34
pkg/api/objectreference.go Normal file
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@ -0,0 +1,34 @@
/*
Copyright 2017 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.
*/
//TODO: consider making these methods functions, because we don't want helper
//functions in the k8s.io/api repo.
package api
import (
"k8s.io/apimachinery/pkg/runtime/schema"
)
func (obj *ObjectReference) SetGroupVersionKind(gvk schema.GroupVersionKind) {
obj.APIVersion, obj.Kind = gvk.ToAPIVersionAndKind()
}
func (obj *ObjectReference) GroupVersionKind() schema.GroupVersionKind {
return schema.FromAPIVersionAndKind(obj.APIVersion, obj.Kind)
}
func (obj *ObjectReference) GetObjectKind() schema.ObjectKind { return obj }

132
pkg/api/ref.go
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@ -1,132 +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 api
import (
"errors"
"fmt"
"net/url"
"strings"
"k8s.io/apimachinery/pkg/api/meta"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
)
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(scheme *runtime.Scheme, 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(scheme *runtime.Scheme, obj runtime.Object, fieldPath string) (*ObjectReference, error) {
ref, err := GetReference(scheme, 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 schema.GroupVersionKind) {
obj.APIVersion, obj.Kind = gvk.ToAPIVersionAndKind()
}
func (obj *ObjectReference) GroupVersionKind() schema.GroupVersionKind {
return schema.FromAPIVersionAndKind(obj.APIVersion, obj.Kind)
}
func (obj *ObjectReference) GetObjectKind() schema.ObjectKind { return obj }

10
pkg/api/methods.go → pkg/api/taint.go
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@ -21,16 +21,6 @@ package api
import "fmt" import "fmt"
// MatchToleration checks if the toleration matches tolerationToMatch. Tolerations are unique by <key,effect,operator,value>,
// if the two tolerations have same <key,effect,operator,value> combination, regard as they match.
// TODO: uniqueness check for tolerations in api validations.
func (t *Toleration) MatchToleration(tolerationToMatch *Toleration) bool {
return t.Key == tolerationToMatch.Key &&
t.Effect == tolerationToMatch.Effect &&
t.Operator == tolerationToMatch.Operator &&
t.Value == tolerationToMatch.Value
}
// MatchTaint checks if the taint matches taintToMatch. Taints are unique by key:effect, // MatchTaint checks if the taint matches taintToMatch. Taints are unique by key:effect,
// if the two taints have same key:effect, regard as they match. // if the two taints have same key:effect, regard as they match.
func (t *Taint) MatchTaint(taintToMatch Taint) bool { func (t *Taint) MatchTaint(taintToMatch Taint) bool {

30
pkg/api/toleration.go Normal file
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@ -0,0 +1,30 @@
/*
Copyright 2017 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.
*/
//TODO: consider making these methods functions, because we don't want helper
//functions in the k8s.io/api repo.
package api
// MatchToleration checks if the toleration matches tolerationToMatch. Tolerations are unique by <key,effect,operator,value>,
// if the two tolerations have same <key,effect,operator,value> combination, regard as they match.
// TODO: uniqueness check for tolerations in api validations.
func (t *Toleration) MatchToleration(tolerationToMatch *Toleration) bool {
return t.Key == tolerationToMatch.Key &&
t.Effect == tolerationToMatch.Effect &&
t.Operator == tolerationToMatch.Operator &&
t.Value == tolerationToMatch.Value
}