k8s.io/client-go@v0.31.1/openapi/cached/client.go (about) 1 /* 2 Copyright 2017 The Kubernetes Authors. 3 4 Licensed under the Apache License, Version 2.0 (the "License"); 5 you may not use this file except in compliance with the License. 6 You may obtain a copy of the License at 7 8 http://www.apache.org/licenses/LICENSE-2.0 9 10 Unless required by applicable law or agreed to in writing, software 11 distributed under the License is distributed on an "AS IS" BASIS, 12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 See the License for the specific language governing permissions and 14 limitations under the License. 15 */ 16 17 package cached 18 19 import ( 20 "sync" 21 22 "k8s.io/client-go/openapi" 23 ) 24 25 type client struct { 26 delegate openapi.Client 27 28 once sync.Once 29 result map[string]openapi.GroupVersion 30 err error 31 } 32 33 func NewClient(other openapi.Client) openapi.Client { 34 return &client{ 35 delegate: other, 36 } 37 } 38 39 func (c *client) Paths() (map[string]openapi.GroupVersion, error) { 40 c.once.Do(func() { 41 uncached, err := c.delegate.Paths() 42 if err != nil { 43 c.err = err 44 return 45 } 46 47 result := make(map[string]openapi.GroupVersion, len(uncached)) 48 for k, v := range uncached { 49 result[k] = newGroupVersion(v) 50 } 51 c.result = result 52 }) 53 return c.result, c.err 54 }