Import of https://github.com/ciena/voltctl at commit 40d61fbf3f910ed4017cf67c9c79e8e1f82a33a5
Change-Id: I8464c59e60d76cb8612891db3303878975b5416c
diff --git a/vendor/k8s.io/apimachinery/pkg/api/meta/multirestmapper.go b/vendor/k8s.io/apimachinery/pkg/api/meta/multirestmapper.go
new file mode 100644
index 0000000..6b01bf1
--- /dev/null
+++ b/vendor/k8s.io/apimachinery/pkg/api/meta/multirestmapper.go
@@ -0,0 +1,210 @@
+/*
+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"
+ "strings"
+
+ "k8s.io/apimachinery/pkg/runtime/schema"
+ utilerrors "k8s.io/apimachinery/pkg/util/errors"
+)
+
+// MultiRESTMapper is a wrapper for multiple RESTMappers.
+type MultiRESTMapper []RESTMapper
+
+func (m MultiRESTMapper) String() string {
+ nested := []string{}
+ for _, t := range m {
+ currString := fmt.Sprintf("%v", t)
+ splitStrings := strings.Split(currString, "\n")
+ nested = append(nested, strings.Join(splitStrings, "\n\t"))
+ }
+
+ return fmt.Sprintf("MultiRESTMapper{\n\t%s\n}", strings.Join(nested, "\n\t"))
+}
+
+// ResourceSingularizer converts a REST resource name from plural to singular (e.g., from pods to pod)
+// This implementation supports multiple REST schemas and return the first match.
+func (m MultiRESTMapper) ResourceSingularizer(resource string) (singular string, err error) {
+ for _, t := range m {
+ singular, err = t.ResourceSingularizer(resource)
+ if err == nil {
+ return
+ }
+ }
+ return
+}
+
+func (m MultiRESTMapper) ResourcesFor(resource schema.GroupVersionResource) ([]schema.GroupVersionResource, error) {
+ allGVRs := []schema.GroupVersionResource{}
+ for _, t := range m {
+ gvrs, err := t.ResourcesFor(resource)
+ // ignore "no match" errors, but any other error percolates back up
+ if IsNoMatchError(err) {
+ continue
+ }
+ if err != nil {
+ return nil, err
+ }
+
+ // walk the existing values to de-dup
+ for _, curr := range gvrs {
+ found := false
+ for _, existing := range allGVRs {
+ if curr == existing {
+ found = true
+ break
+ }
+ }
+
+ if !found {
+ allGVRs = append(allGVRs, curr)
+ }
+ }
+ }
+
+ if len(allGVRs) == 0 {
+ return nil, &NoResourceMatchError{PartialResource: resource}
+ }
+
+ return allGVRs, nil
+}
+
+func (m MultiRESTMapper) KindsFor(resource schema.GroupVersionResource) (gvk []schema.GroupVersionKind, err error) {
+ allGVKs := []schema.GroupVersionKind{}
+ for _, t := range m {
+ gvks, err := t.KindsFor(resource)
+ // ignore "no match" errors, but any other error percolates back up
+ if IsNoMatchError(err) {
+ continue
+ }
+ if err != nil {
+ return nil, err
+ }
+
+ // walk the existing values to de-dup
+ for _, curr := range gvks {
+ found := false
+ for _, existing := range allGVKs {
+ if curr == existing {
+ found = true
+ break
+ }
+ }
+
+ if !found {
+ allGVKs = append(allGVKs, curr)
+ }
+ }
+ }
+
+ if len(allGVKs) == 0 {
+ return nil, &NoResourceMatchError{PartialResource: resource}
+ }
+
+ return allGVKs, nil
+}
+
+func (m MultiRESTMapper) ResourceFor(resource schema.GroupVersionResource) (schema.GroupVersionResource, error) {
+ resources, err := m.ResourcesFor(resource)
+ if err != nil {
+ return schema.GroupVersionResource{}, err
+ }
+ if len(resources) == 1 {
+ return resources[0], nil
+ }
+
+ return schema.GroupVersionResource{}, &AmbiguousResourceError{PartialResource: resource, MatchingResources: resources}
+}
+
+func (m MultiRESTMapper) KindFor(resource schema.GroupVersionResource) (schema.GroupVersionKind, error) {
+ kinds, err := m.KindsFor(resource)
+ if err != nil {
+ return schema.GroupVersionKind{}, err
+ }
+ if len(kinds) == 1 {
+ return kinds[0], nil
+ }
+
+ return schema.GroupVersionKind{}, &AmbiguousResourceError{PartialResource: resource, MatchingKinds: kinds}
+}
+
+// RESTMapping provides the REST mapping for the resource based on the
+// kind and version. This implementation supports multiple REST schemas and
+// return the first match.
+func (m MultiRESTMapper) RESTMapping(gk schema.GroupKind, versions ...string) (*RESTMapping, error) {
+ allMappings := []*RESTMapping{}
+ errors := []error{}
+
+ for _, t := range m {
+ currMapping, err := t.RESTMapping(gk, versions...)
+ // ignore "no match" errors, but any other error percolates back up
+ if IsNoMatchError(err) {
+ continue
+ }
+ if err != nil {
+ errors = append(errors, err)
+ continue
+ }
+
+ allMappings = append(allMappings, currMapping)
+ }
+
+ // if we got exactly one mapping, then use it even if other requested failed
+ if len(allMappings) == 1 {
+ return allMappings[0], nil
+ }
+ if len(allMappings) > 1 {
+ var kinds []schema.GroupVersionKind
+ for _, m := range allMappings {
+ kinds = append(kinds, m.GroupVersionKind)
+ }
+ return nil, &AmbiguousKindError{PartialKind: gk.WithVersion(""), MatchingKinds: kinds}
+ }
+ if len(errors) > 0 {
+ return nil, utilerrors.NewAggregate(errors)
+ }
+ return nil, &NoKindMatchError{GroupKind: gk, SearchedVersions: versions}
+}
+
+// RESTMappings returns all possible RESTMappings for the provided group kind, or an error
+// if the type is not recognized.
+func (m MultiRESTMapper) RESTMappings(gk schema.GroupKind, versions ...string) ([]*RESTMapping, error) {
+ var allMappings []*RESTMapping
+ var errors []error
+
+ for _, t := range m {
+ currMappings, err := t.RESTMappings(gk, versions...)
+ // ignore "no match" errors, but any other error percolates back up
+ if IsNoMatchError(err) {
+ continue
+ }
+ if err != nil {
+ errors = append(errors, err)
+ continue
+ }
+ allMappings = append(allMappings, currMappings...)
+ }
+ if len(errors) > 0 {
+ return nil, utilerrors.NewAggregate(errors)
+ }
+ if len(allMappings) == 0 {
+ return nil, &NoKindMatchError{GroupKind: gk, SearchedVersions: versions}
+ }
+ return allMappings, nil
+}