59 lines
2.1 KiB
Go
59 lines
2.1 KiB
Go
/*
|
|
Copyright 2024 The Kubernetes Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package validate
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"strings"
|
|
|
|
"k8s.io/apimachinery/pkg/api/operation"
|
|
"k8s.io/apimachinery/pkg/util/validation/field"
|
|
)
|
|
|
|
// ZeroOrOneOfUnion verifies that at most one member of a union is specified.
|
|
//
|
|
// ZeroOrOneOfMembership must define all the members of the union.
|
|
//
|
|
// For example:
|
|
//
|
|
// var ZeroOrOneOfMembershipForABC = validate.NewUnionMembership(
|
|
// validate.NewUnionMember("a"),
|
|
// validate.NewUnionMember("b"),
|
|
// validate.NewUnionMember("c"),
|
|
// )
|
|
// func ValidateABC(ctx context.Context, op operation.Operation, fldPath *field.Path, in *ABC) (errs field.ErrorList) {
|
|
// errs = append(errs, validate.ZeroOrOneOfUnion(ctx, op, fldPath, in, oldIn,
|
|
// ZeroOrOneOfMembershipForABC,
|
|
// func(in *ABC) bool { return in.A != nil },
|
|
// func(in *ABC) bool { return in.B != ""},
|
|
// func(in *ABC) bool { return in.C != 0 },
|
|
// )...)
|
|
// return errs
|
|
// }
|
|
func ZeroOrOneOfUnion[T any](_ context.Context, op operation.Operation, fldPath *field.Path, obj, oldObj T, union *UnionMembership, isSetFns ...ExtractorFn[T, bool]) field.ErrorList {
|
|
options := UnionValidationOptions{
|
|
ErrorForEmpty: nil,
|
|
ErrorForMultiple: func(fldPath *field.Path, specifiedFields []string, allFields []string) *field.Error {
|
|
return field.Invalid(fldPath, fmt.Sprintf("{%s}", strings.Join(specifiedFields, ", ")),
|
|
fmt.Sprintf("must specify at most one of: %s", strings.Join(allFields, ", "))).WithOrigin("zeroOrOneOf")
|
|
},
|
|
}
|
|
|
|
errs := unionValidate(op, fldPath, obj, oldObj, union, options, isSetFns...)
|
|
return errs
|
|
}
|