diff options
Diffstat (limited to 'vendor/k8s.io/apimachinery/pkg/api/meta/priority.go')
| -rw-r--r-- | vendor/k8s.io/apimachinery/pkg/api/meta/priority.go | 222 |
1 files changed, 0 insertions, 222 deletions
diff --git a/vendor/k8s.io/apimachinery/pkg/api/meta/priority.go b/vendor/k8s.io/apimachinery/pkg/api/meta/priority.go deleted file mode 100644 index df28e64ff..000000000 --- a/vendor/k8s.io/apimachinery/pkg/api/meta/priority.go +++ /dev/null @@ -1,222 +0,0 @@ -/* -Copyright 2016 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" - - "k8s.io/apimachinery/pkg/runtime/schema" -) - -const ( - AnyGroup = "*" - AnyVersion = "*" - AnyResource = "*" - AnyKind = "*" -) - -// PriorityRESTMapper is a wrapper for automatically choosing a particular Resource or Kind -// when multiple matches are possible -type PriorityRESTMapper struct { - // Delegate is the RESTMapper to use to locate all the Kind and Resource matches - Delegate RESTMapper - - // ResourcePriority is a list of priority patterns to apply to matching resources. - // The list of all matching resources is narrowed based on the patterns until only one remains. - // A pattern with no matches is skipped. A pattern with more than one match uses its - // matches as the list to continue matching against. - ResourcePriority []schema.GroupVersionResource - - // KindPriority is a list of priority patterns to apply to matching kinds. - // The list of all matching kinds is narrowed based on the patterns until only one remains. - // A pattern with no matches is skipped. A pattern with more than one match uses its - // matches as the list to continue matching against. - KindPriority []schema.GroupVersionKind -} - -func (m PriorityRESTMapper) String() string { - return fmt.Sprintf("PriorityRESTMapper{\n\t%v\n\t%v\n\t%v\n}", m.ResourcePriority, m.KindPriority, m.Delegate) -} - -// ResourceFor finds all resources, then passes them through the ResourcePriority patterns to find a single matching hit. -func (m PriorityRESTMapper) ResourceFor(partiallySpecifiedResource schema.GroupVersionResource) (schema.GroupVersionResource, error) { - originalGVRs, err := m.Delegate.ResourcesFor(partiallySpecifiedResource) - if err != nil { - return schema.GroupVersionResource{}, err - } - if len(originalGVRs) == 1 { - return originalGVRs[0], nil - } - - remainingGVRs := append([]schema.GroupVersionResource{}, originalGVRs...) - for _, pattern := range m.ResourcePriority { - matchedGVRs := []schema.GroupVersionResource{} - for _, gvr := range remainingGVRs { - if resourceMatches(pattern, gvr) { - matchedGVRs = append(matchedGVRs, gvr) - } - } - - switch len(matchedGVRs) { - case 0: - // if you have no matches, then nothing matched this pattern just move to the next - continue - case 1: - // one match, return - return matchedGVRs[0], nil - default: - // more than one match, use the matched hits as the list moving to the next pattern. - // this way you can have a series of selection criteria - remainingGVRs = matchedGVRs - } - } - - return schema.GroupVersionResource{}, &AmbiguousResourceError{PartialResource: partiallySpecifiedResource, MatchingResources: originalGVRs} -} - -// KindFor finds all kinds, then passes them through the KindPriority patterns to find a single matching hit. -func (m PriorityRESTMapper) KindFor(partiallySpecifiedResource schema.GroupVersionResource) (schema.GroupVersionKind, error) { - originalGVKs, err := m.Delegate.KindsFor(partiallySpecifiedResource) - if err != nil { - return schema.GroupVersionKind{}, err - } - if len(originalGVKs) == 1 { - return originalGVKs[0], nil - } - - remainingGVKs := append([]schema.GroupVersionKind{}, originalGVKs...) - for _, pattern := range m.KindPriority { - matchedGVKs := []schema.GroupVersionKind{} - for _, gvr := range remainingGVKs { - if kindMatches(pattern, gvr) { - matchedGVKs = append(matchedGVKs, gvr) - } - } - - switch len(matchedGVKs) { - case 0: - // if you have no matches, then nothing matched this pattern just move to the next - continue - case 1: - // one match, return - return matchedGVKs[0], nil - default: - // more than one match, use the matched hits as the list moving to the next pattern. - // this way you can have a series of selection criteria - remainingGVKs = matchedGVKs - } - } - - return schema.GroupVersionKind{}, &AmbiguousResourceError{PartialResource: partiallySpecifiedResource, MatchingKinds: originalGVKs} -} - -func resourceMatches(pattern schema.GroupVersionResource, resource schema.GroupVersionResource) bool { - if pattern.Group != AnyGroup && pattern.Group != resource.Group { - return false - } - if pattern.Version != AnyVersion && pattern.Version != resource.Version { - return false - } - if pattern.Resource != AnyResource && pattern.Resource != resource.Resource { - return false - } - - return true -} - -func kindMatches(pattern schema.GroupVersionKind, kind schema.GroupVersionKind) bool { - if pattern.Group != AnyGroup && pattern.Group != kind.Group { - return false - } - if pattern.Version != AnyVersion && pattern.Version != kind.Version { - return false - } - if pattern.Kind != AnyKind && pattern.Kind != kind.Kind { - return false - } - - return true -} - -func (m PriorityRESTMapper) RESTMapping(gk schema.GroupKind, versions ...string) (mapping *RESTMapping, err error) { - mappings, err := m.Delegate.RESTMappings(gk, versions...) - if err != nil { - return nil, err - } - - // any versions the user provides take priority - priorities := m.KindPriority - if len(versions) > 0 { - priorities = make([]schema.GroupVersionKind, 0, len(m.KindPriority)+len(versions)) - for _, version := range versions { - gv := schema.GroupVersion{ - Version: version, - Group: gk.Group, - } - priorities = append(priorities, gv.WithKind(AnyKind)) - } - priorities = append(priorities, m.KindPriority...) - } - - remaining := append([]*RESTMapping{}, mappings...) - for _, pattern := range priorities { - var matching []*RESTMapping - for _, m := range remaining { - if kindMatches(pattern, m.GroupVersionKind) { - matching = append(matching, m) - } - } - - switch len(matching) { - case 0: - // if you have no matches, then nothing matched this pattern just move to the next - continue - case 1: - // one match, return - return matching[0], nil - default: - // more than one match, use the matched hits as the list moving to the next pattern. - // this way you can have a series of selection criteria - remaining = matching - } - } - if len(remaining) == 1 { - return remaining[0], nil - } - - var kinds []schema.GroupVersionKind - for _, m := range mappings { - kinds = append(kinds, m.GroupVersionKind) - } - return nil, &AmbiguousKindError{PartialKind: gk.WithVersion(""), MatchingKinds: kinds} -} - -func (m PriorityRESTMapper) RESTMappings(gk schema.GroupKind, versions ...string) ([]*RESTMapping, error) { - return m.Delegate.RESTMappings(gk, versions...) -} - -func (m PriorityRESTMapper) ResourceSingularizer(resource string) (singular string, err error) { - return m.Delegate.ResourceSingularizer(resource) -} - -func (m PriorityRESTMapper) ResourcesFor(partiallySpecifiedResource schema.GroupVersionResource) ([]schema.GroupVersionResource, error) { - return m.Delegate.ResourcesFor(partiallySpecifiedResource) -} - -func (m PriorityRESTMapper) KindsFor(partiallySpecifiedResource schema.GroupVersionResource) (gvk []schema.GroupVersionKind, err error) { - return m.Delegate.KindsFor(partiallySpecifiedResource) -} |