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fake_discovery_helper.go
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/
fake_discovery_helper.go
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/*
Copyright 2017 the Heptio Ark contributors.
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 test
import (
"errors"
"fmt"
"k8s.io/apimachinery/pkg/api/meta"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime/schema"
)
type FakeDiscoveryHelper struct {
ResourceList []*metav1.APIResourceList
Mapper meta.RESTMapper
AutoReturnResource bool
APIGroupsList []metav1.APIGroup
}
func NewFakeDiscoveryHelper(autoReturnResource bool, resources map[schema.GroupVersionResource]schema.GroupVersionResource) *FakeDiscoveryHelper {
helper := &FakeDiscoveryHelper{
AutoReturnResource: autoReturnResource,
Mapper: &FakeMapper{
Resources: resources,
},
}
if resources == nil {
return helper
}
apiResourceMap := make(map[string][]metav1.APIResource)
for _, gvr := range resources {
var gvString string
if gvr.Version != "" && gvr.Group != "" {
gvString = fmt.Sprintf("%s/%s", gvr.Group, gvr.Version)
} else {
gvString = fmt.Sprintf("%s%s", gvr.Group, gvr.Version)
}
apiResourceMap[gvString] = append(apiResourceMap[gvString], metav1.APIResource{Name: gvr.Resource})
helper.APIGroupsList = append(helper.APIGroupsList,
metav1.APIGroup{
Name: gvr.Group,
PreferredVersion: metav1.GroupVersionForDiscovery{
GroupVersion: gvString,
Version: gvr.Version,
},
})
}
for group, resources := range apiResourceMap {
helper.ResourceList = append(helper.ResourceList, &metav1.APIResourceList{GroupVersion: group, APIResources: resources})
}
return helper
}
func (dh *FakeDiscoveryHelper) Resources() []*metav1.APIResourceList {
return dh.ResourceList
}
func (dh *FakeDiscoveryHelper) Refresh() error {
return nil
}
func (dh *FakeDiscoveryHelper) ResourceFor(input schema.GroupVersionResource) (schema.GroupVersionResource, metav1.APIResource, error) {
if dh.AutoReturnResource {
return schema.GroupVersionResource{
Group: input.Group,
Version: input.Version,
Resource: input.Resource,
},
metav1.APIResource{
Name: input.Resource,
},
nil
}
gvr, err := dh.Mapper.ResourceFor(input)
if err != nil {
return schema.GroupVersionResource{}, metav1.APIResource{}, err
}
var gvString string
if gvr.Version != "" && gvr.Group != "" {
gvString = fmt.Sprintf("%s/%s", gvr.Group, gvr.Version)
} else {
gvString = gvr.Version + gvr.Group
}
for _, gr := range dh.ResourceList {
if gr.GroupVersion != gvString {
continue
}
for _, resource := range gr.APIResources {
if resource.Name == gvr.Resource {
return gvr, resource, nil
}
}
}
return schema.GroupVersionResource{}, metav1.APIResource{}, errors.New("APIResource not found")
}
func (dh *FakeDiscoveryHelper) APIGroups() []metav1.APIGroup {
return dh.APIGroupsList
}