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apiextensions: add structural schema extension unfolding

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This commit is contained in:
Dr. Stefan Schimanski 2019-05-07 18:48:40 +02:00
parent 4f28fa8907
commit 6acd9215b0
2 changed files with 79 additions and 9 deletions
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63
staging/src/k8s.io/apiextensions-apiserver/pkg/apiserver/schema/unfold.go Normal file
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@ -0,0 +1,63 @@
/*
Copyright 2019 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 schema
// Unfold expands vendor extensions of a structural schema.
// It mutates the receiver.
func (s *Structural) Unfold() *Structural {
if s == nil {
return nil
}
mapper := Visitor{
Structural: func(s *Structural) bool {
if !s.XIntOrString {
return false
}
skipAnyOf := isIntOrStringAnyOfPattern(s)
skipFirstAllOfAnyOf := isIntOrStringAllOfPattern(s)
if skipAnyOf || skipFirstAllOfAnyOf {
return false
}
if s.AnyOf == nil {
s.AnyOf = []NestedValueValidation{
{ForbiddenGenerics: Generic{Type: "integer"}},
{ForbiddenGenerics: Generic{Type: "string"}},
}
} else {
s.AllOf = append([]NestedValueValidation{
{
ValueValidation: ValueValidation{
AnyOf: []NestedValueValidation{
{ForbiddenGenerics: Generic{Type: "integer"}},
{ForbiddenGenerics: Generic{Type: "string"}},
},
},
},
}, s.AllOf...)
}
return true
},
NestedValueValidation: nil, // x-kubernetes-int-or-string cannot be set in nested value validation
}
mapper.Visit(s)
return s
}

25
staging/src/k8s.io/apiextensions-apiserver/pkg/apiserver/schema/validation.go
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@ -97,15 +97,8 @@ func validateStructuralInvariants(s *Structural, lvl level, fldPath *field.Path)
// - type: integer
// - type: string
// - ... zero or more
skipAnyOf := false
skipFirstAllOfAnyOf := false
if s.XIntOrString && s.ValueValidation != nil {
if len(s.ValueValidation.AnyOf) == 2 && reflect.DeepEqual(s.ValueValidation.AnyOf, intOrStringAnyOf) {
skipAnyOf = true
} else if len(s.ValueValidation.AllOf) >= 1 && len(s.ValueValidation.AllOf[0].AnyOf) == 2 && reflect.DeepEqual(s.ValueValidation.AllOf[0].AnyOf, intOrStringAnyOf) {
skipFirstAllOfAnyOf = true
}
}
skipAnyOf := isIntOrStringAnyOfPattern(s)
skipFirstAllOfAnyOf := isIntOrStringAllOfPattern(s)
allErrs = append(allErrs, validateValueValidation(s.ValueValidation, skipAnyOf, skipFirstAllOfAnyOf, lvl, fldPath)...)
@ -157,6 +150,20 @@ func validateStructuralInvariants(s *Structural, lvl level, fldPath *field.Path)
return allErrs
}
func isIntOrStringAnyOfPattern(s *Structural) bool {
if s == nil || s.ValueValidation == nil {
return false
}
return len(s.ValueValidation.AnyOf) == 2 && reflect.DeepEqual(s.ValueValidation.AnyOf, intOrStringAnyOf)
}
func isIntOrStringAllOfPattern(s *Structural) bool {
if s == nil || s.ValueValidation == nil {
return false
}
return len(s.ValueValidation.AllOf) >= 1 && len(s.ValueValidation.AllOf[0].AnyOf) == 2 && reflect.DeepEqual(s.ValueValidation.AllOf[0].AnyOf, intOrStringAnyOf)
}
// validateGeneric checks the generic fields of a structural schema.
func validateGeneric(g *Generic, lvl level, fldPath *field.Path) field.ErrorList {
if g == nil {