122 lines
3.2 KiB
Go
122 lines
3.2 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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// this file contains factories with no other dependencies
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package util
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import (
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"sync"
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"k8s.io/apimachinery/pkg/api/meta"
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restclient "k8s.io/client-go/rest"
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api "k8s.io/kubernetes/pkg/apis/core"
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"k8s.io/kubernetes/pkg/kubectl/cmd/util/openapi"
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openapivalidation "k8s.io/kubernetes/pkg/kubectl/cmd/util/openapi/validation"
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"k8s.io/kubernetes/pkg/kubectl/genericclioptions/resource"
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"k8s.io/kubernetes/pkg/kubectl/validation"
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)
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type ring1Factory struct {
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clientAccessFactory ClientAccessFactory
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// openAPIGetter loads and caches openapi specs
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openAPIGetter openAPIGetter
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}
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type openAPIGetter struct {
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once sync.Once
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getter openapi.Getter
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}
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func NewObjectMappingFactory(clientAccessFactory ClientAccessFactory) ObjectMappingFactory {
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f := &ring1Factory{
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clientAccessFactory: clientAccessFactory,
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}
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return f
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}
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func (f *ring1Factory) ClientForMapping(mapping *meta.RESTMapping) (resource.RESTClient, error) {
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cfg, err := f.clientAccessFactory.ToRESTConfig()
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if err != nil {
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return nil, err
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}
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if err := setKubernetesDefaults(cfg); err != nil {
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return nil, err
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}
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gvk := mapping.GroupVersionKind
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switch gvk.Group {
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case api.GroupName:
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cfg.APIPath = "/api"
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default:
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cfg.APIPath = "/apis"
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}
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gv := gvk.GroupVersion()
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cfg.GroupVersion = &gv
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return restclient.RESTClientFor(cfg)
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}
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func (f *ring1Factory) UnstructuredClientForMapping(mapping *meta.RESTMapping) (resource.RESTClient, error) {
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cfg, err := f.clientAccessFactory.ToRESTConfig()
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if err != nil {
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return nil, err
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}
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if err := restclient.SetKubernetesDefaults(cfg); err != nil {
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return nil, err
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}
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cfg.APIPath = "/apis"
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if mapping.GroupVersionKind.Group == api.GroupName {
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cfg.APIPath = "/api"
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}
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gv := mapping.GroupVersionKind.GroupVersion()
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cfg.ContentConfig = resource.UnstructuredPlusDefaultContentConfig()
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cfg.GroupVersion = &gv
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return restclient.RESTClientFor(cfg)
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}
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func (f *ring1Factory) Validator(validate bool) (validation.Schema, error) {
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if !validate {
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return validation.NullSchema{}, nil
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}
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resources, err := f.OpenAPISchema()
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if err != nil {
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return nil, err
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}
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return validation.ConjunctiveSchema{
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openapivalidation.NewSchemaValidation(resources),
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validation.NoDoubleKeySchema{},
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}, nil
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}
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// OpenAPISchema returns metadata and structural information about Kubernetes object definitions.
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func (f *ring1Factory) OpenAPISchema() (openapi.Resources, error) {
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discovery, err := f.clientAccessFactory.ToDiscoveryClient()
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if err != nil {
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return nil, err
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}
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// Lazily initialize the OpenAPIGetter once
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f.openAPIGetter.once.Do(func() {
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// Create the caching OpenAPIGetter
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f.openAPIGetter.getter = openapi.NewOpenAPIGetter(discovery)
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})
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// Delegate to the OpenAPIGetter
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return f.openAPIGetter.getter.Get()
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}
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