mirror of https://github.com/k3s-io/k3s
93 lines
2.9 KiB
Go
93 lines
2.9 KiB
Go
/*
|
|
Copyright 2015 The Kubernetes Authors All rights reserved.
|
|
|
|
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 storage
|
|
|
|
import (
|
|
"fmt"
|
|
"strconv"
|
|
|
|
"k8s.io/kubernetes/pkg/api/errors"
|
|
"k8s.io/kubernetes/pkg/api/meta"
|
|
"k8s.io/kubernetes/pkg/api/unversioned"
|
|
"k8s.io/kubernetes/pkg/api/validation"
|
|
"k8s.io/kubernetes/pkg/runtime"
|
|
"k8s.io/kubernetes/pkg/util/validation/field"
|
|
)
|
|
|
|
type SimpleUpdateFunc func(runtime.Object) (runtime.Object, error)
|
|
|
|
// SimpleUpdateFunc converts SimpleUpdateFunc into UpdateFunc
|
|
func SimpleUpdate(fn SimpleUpdateFunc) UpdateFunc {
|
|
return func(input runtime.Object, _ ResponseMeta) (runtime.Object, *uint64, error) {
|
|
out, err := fn(input)
|
|
return out, nil, err
|
|
}
|
|
}
|
|
|
|
// ParseWatchResourceVersion takes a resource version argument and converts it to
|
|
// the etcd version we should pass to helper.Watch(). Because resourceVersion is
|
|
// an opaque value, the default watch behavior for non-zero watch is to watch
|
|
// the next value (if you pass "1", you will see updates from "2" onwards).
|
|
func ParseWatchResourceVersion(resourceVersion string) (uint64, error) {
|
|
if resourceVersion == "" || resourceVersion == "0" {
|
|
return 0, nil
|
|
}
|
|
version, err := strconv.ParseUint(resourceVersion, 10, 64)
|
|
if err != nil {
|
|
return 0, errors.NewInvalid(unversioned.GroupKind{}, "", field.ErrorList{
|
|
// Validation errors are supposed to return version-specific field
|
|
// paths, but this is probably close enough.
|
|
field.Invalid(field.NewPath("resourceVersion"), resourceVersion, err.Error()),
|
|
})
|
|
}
|
|
return version, nil
|
|
}
|
|
|
|
// ParseListResourceVersion takes a resource version argument and converts it to
|
|
// the etcd version.
|
|
func ParseListResourceVersion(resourceVersion string) (uint64, error) {
|
|
if resourceVersion == "" {
|
|
return 0, nil
|
|
}
|
|
version, err := strconv.ParseUint(resourceVersion, 10, 64)
|
|
return version, err
|
|
}
|
|
|
|
func NamespaceKeyFunc(prefix string, obj runtime.Object) (string, error) {
|
|
meta, err := meta.Accessor(obj)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
name := meta.GetName()
|
|
if ok, msg := validation.IsValidPathSegmentName(name); !ok {
|
|
return "", fmt.Errorf("invalid name: %v", msg)
|
|
}
|
|
return prefix + "/" + meta.GetNamespace() + "/" + name, nil
|
|
}
|
|
|
|
func NoNamespaceKeyFunc(prefix string, obj runtime.Object) (string, error) {
|
|
meta, err := meta.Accessor(obj)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
name := meta.GetName()
|
|
if ok, msg := validation.IsValidPathSegmentName(name); !ok {
|
|
return "", fmt.Errorf("invalid name: %v", msg)
|
|
}
|
|
return prefix + "/" + name, nil
|
|
}
|