strategy.go

Documentation: k8s.io/kubernetes/pkg/registry/resource/resourceclassparameters

     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 resourceclassparameters
    18  
    19  import (
    20  	"context"
    21  	"errors"
    22  
    23  	"k8s.io/apimachinery/pkg/fields"
    24  	"k8s.io/apimachinery/pkg/labels"
    25  	"k8s.io/apimachinery/pkg/runtime"
    26  	"k8s.io/apimachinery/pkg/util/validation/field"
    27  	"k8s.io/apiserver/pkg/registry/generic"
    28  	"k8s.io/apiserver/pkg/storage"
    29  	"k8s.io/apiserver/pkg/storage/names"
    30  	"k8s.io/kubernetes/pkg/api/legacyscheme"
    31  	"k8s.io/kubernetes/pkg/apis/resource"
    32  	"k8s.io/kubernetes/pkg/apis/resource/validation"
    33  )
    34  
    35  // resourceClassParametersStrategy implements behavior for ResourceClassParameters objects
    36  type resourceClassParametersStrategy struct {
    37  	runtime.ObjectTyper
    38  	names.NameGenerator
    39  }
    40  
    41  var Strategy = resourceClassParametersStrategy{legacyscheme.Scheme, names.SimpleNameGenerator}
    42  
    43  func (resourceClassParametersStrategy) NamespaceScoped() bool {
    44  	return true
    45  }
    46  
    47  func (resourceClassParametersStrategy) PrepareForCreate(ctx context.Context, obj runtime.Object) {
    48  }
    49  
    50  func (resourceClassParametersStrategy) Validate(ctx context.Context, obj runtime.Object) field.ErrorList {
    51  	resourceClassParameters := obj.(*resource.ResourceClassParameters)
    52  	return validation.ValidateResourceClassParameters(resourceClassParameters)
    53  }
    54  
    55  func (resourceClassParametersStrategy) WarningsOnCreate(ctx context.Context, obj runtime.Object) []string {
    56  	return nil
    57  }
    58  
    59  func (resourceClassParametersStrategy) Canonicalize(obj runtime.Object) {
    60  }
    61  
    62  func (resourceClassParametersStrategy) AllowCreateOnUpdate() bool {
    63  	return false
    64  }
    65  
    66  func (resourceClassParametersStrategy) PrepareForUpdate(ctx context.Context, obj, old runtime.Object) {
    67  }
    68  
    69  func (resourceClassParametersStrategy) ValidateUpdate(ctx context.Context, obj, old runtime.Object) field.ErrorList {
    70  	return validation.ValidateResourceClassParametersUpdate(obj.(*resource.ResourceClassParameters), old.(*resource.ResourceClassParameters))
    71  }
    72  
    73  func (resourceClassParametersStrategy) WarningsOnUpdate(ctx context.Context, obj, old runtime.Object) []string {
    74  	return nil
    75  }
    76  
    77  func (resourceClassParametersStrategy) AllowUnconditionalUpdate() bool {
    78  	return true
    79  }
    80  
    81  // Match returns a generic matcher for a given label and field selector.
    82  func Match(label labels.Selector, field fields.Selector) storage.SelectionPredicate {
    83  	return storage.SelectionPredicate{
    84  		Label:    label,
    85  		Field:    field,
    86  		GetAttrs: GetAttrs,
    87  	}
    88  }
    89  
    90  // GetAttrs returns labels and fields of a given object for filtering purposes.
    91  func GetAttrs(obj runtime.Object) (labels.Set, fields.Set, error) {
    92  	parameters, ok := obj.(*resource.ResourceClassParameters)
    93  	if !ok {
    94  		return nil, nil, errors.New("not a resourceclassparameters")
    95  	}
    96  	return labels.Set(parameters.Labels), toSelectableFields(parameters), nil
    97  }
    98  
    99  // toSelectableFields returns a field set that represents the object
   100  func toSelectableFields(class *resource.ResourceClassParameters) fields.Set {
   101  	fields := generic.ObjectMetaFieldsSet(&class.ObjectMeta, true)
   102  	return fields
   103  }
   104
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