knative.dev/pkg@v0.0.0-20260602142205-ac97e43f6622/reconciler/testing/sorter.go (about)

     1  /*
     2  Copyright 2019 The Knative 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  package testing
    17  
    18  import (
    19  	"fmt"
    20  	"reflect"
    21  
    22  	"k8s.io/apimachinery/pkg/runtime"
    23  	util_runtime "k8s.io/apimachinery/pkg/util/runtime"
    24  	"k8s.io/client-go/tools/cache"
    25  )
    26  
    27  func NewObjectSorter(scheme *runtime.Scheme) ObjectSorter {
    28  	cache := make(map[reflect.Type]cache.Indexer)
    29  
    30  	for _, v := range scheme.AllKnownTypes() {
    31  		cache[v] = emptyIndexer()
    32  	}
    33  
    34  	ls := ObjectSorter{
    35  		cache: cache,
    36  	}
    37  
    38  	return ls
    39  }
    40  
    41  type ObjectSorter struct {
    42  	cache map[reflect.Type]cache.Indexer
    43  }
    44  
    45  func (o *ObjectSorter) AddObjects(objs ...runtime.Object) {
    46  	for _, obj := range objs {
    47  		t := reflect.TypeOf(obj).Elem()
    48  		indexer, ok := o.cache[t]
    49  		if !ok {
    50  			panic(fmt.Sprintf("Unrecognized type %T", obj))
    51  		}
    52  		indexer.Add(obj)
    53  	}
    54  }
    55  
    56  func (o *ObjectSorter) ObjectsForScheme(scheme *runtime.Scheme) []runtime.Object {
    57  	var objs []runtime.Object
    58  
    59  	for _, t := range scheme.AllKnownTypes() {
    60  		indexer := o.cache[t]
    61  		for _, item := range indexer.List() {
    62  			objs = append(objs, item.(runtime.Object))
    63  		}
    64  	}
    65  
    66  	return objs
    67  }
    68  
    69  func (o *ObjectSorter) ObjectsForSchemeFunc(funcs ...func(scheme *runtime.Scheme) error) []runtime.Object {
    70  	scheme := runtime.NewScheme()
    71  
    72  	for _, addToScheme := range funcs {
    73  		util_runtime.Must(addToScheme(scheme))
    74  	}
    75  
    76  	return o.ObjectsForScheme(scheme)
    77  }
    78  
    79  func (o *ObjectSorter) IndexerForObjectType(obj runtime.Object) cache.Indexer {
    80  	objType := reflect.TypeOf(obj).Elem()
    81  
    82  	indexer, ok := o.cache[objType]
    83  
    84  	if !ok {
    85  		panic(fmt.Sprintf("indexer for type %v doesn't exist", objType.Name()))
    86  	}
    87  
    88  	return indexer
    89  }
    90  
    91  func emptyIndexer() cache.Indexer {
    92  	return cache.NewIndexer(cache.MetaNamespaceKeyFunc, cache.Indexers{cache.NamespaceIndex: cache.MetaNamespaceIndexFunc})
    93  }