k8s.io/kube-openapi@v0.0.0-20240228011516-70dd3763d340/pkg/util/proto/testing/openapi_v3.go (about)

     1  /*
     2  Copyright 2022 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 testing
    18  
    19  import (
    20  	"os"
    21  	"path/filepath"
    22  	"sync"
    23  
    24  	openapi_v3 "github.com/google/gnostic-models/openapiv3"
    25  )
    26  
    27  type FakeV3 struct {
    28  	Path string
    29  
    30  	lock      sync.Mutex
    31  	documents map[string]*openapi_v3.Document
    32  	errors    map[string]error
    33  }
    34  
    35  func (f *FakeV3) OpenAPIV3Schema(groupVersion string) (*openapi_v3.Document, error) {
    36  	f.lock.Lock()
    37  	defer f.lock.Unlock()
    38  
    39  	if existing, ok := f.documents[groupVersion]; ok {
    40  		return existing, nil
    41  	} else if existingError, ok := f.errors[groupVersion]; ok {
    42  		return nil, existingError
    43  	}
    44  
    45  	_, err := os.Stat(f.Path)
    46  	if err != nil {
    47  		return nil, err
    48  	}
    49  	spec, err := os.ReadFile(filepath.Join(f.Path, groupVersion+".json"))
    50  	if err != nil {
    51  		return nil, err
    52  	}
    53  
    54  	if f.documents == nil {
    55  		f.documents = make(map[string]*openapi_v3.Document)
    56  	}
    57  
    58  	if f.errors == nil {
    59  		f.errors = make(map[string]error)
    60  	}
    61  
    62  	result, err := openapi_v3.ParseDocument(spec)
    63  	if err != nil {
    64  		f.errors[groupVersion] = err
    65  		return nil, err
    66  	}
    67  
    68  	f.documents[groupVersion] = result
    69  	return result, nil
    70  }