Move Ingress godeps to vendor/

vendor/k8s.io/kubernetes/pkg/api/rest/update.go

@@ -0,0 +1,105 @@
+/*
+Copyright 2014 The Kubernetes Authors All rights reserved.
+
+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 rest
+
+import (
+	"fmt"
+
+	"k8s.io/kubernetes/pkg/api"
+	"k8s.io/kubernetes/pkg/api/errors"
+	"k8s.io/kubernetes/pkg/api/validation"
+	"k8s.io/kubernetes/pkg/runtime"
+	"k8s.io/kubernetes/pkg/util/validation/field"
+)
+
+// RESTUpdateStrategy defines the minimum validation, accepted input, and
+// name generation behavior to update an object that follows Kubernetes
+// API conventions. A resource may have many UpdateStrategies, depending on
+// the call pattern in use.
+type RESTUpdateStrategy interface {
+	runtime.ObjectTyper
+	// NamespaceScoped returns true if the object must be within a namespace.
+	NamespaceScoped() bool
+	// AllowCreateOnUpdate returns true if the object can be created by a PUT.
+	AllowCreateOnUpdate() bool
+	// PrepareForUpdate is invoked on update before validation to normalize
+	// the object.  For example: remove fields that are not to be persisted,
+	// sort order-insensitive list fields, etc.  This should not remove fields
+	// whose presence would be considered a validation error.
+	PrepareForUpdate(obj, old runtime.Object)
+	// ValidateUpdate is invoked after default fields in the object have been
+	// filled in before the object is persisted.  This method should not mutate
+	// the object.
+	ValidateUpdate(ctx api.Context, obj, old runtime.Object) field.ErrorList
+	// Canonicalize is invoked after validation has succeeded but before the
+	// object has been persisted.  This method may mutate the object.
+	Canonicalize(obj runtime.Object)
+	// AllowUnconditionalUpdate returns true if the object can be updated
+	// unconditionally (irrespective of the latest resource version), when
+	// there is no resource version specified in the object.
+	AllowUnconditionalUpdate() bool
+}
+
+// TODO: add other common fields that require global validation.
+func validateCommonFields(obj, old runtime.Object) (field.ErrorList, error) {
+	allErrs := field.ErrorList{}
+	objectMeta, err := api.ObjectMetaFor(obj)
+	if err != nil {
+		return nil, fmt.Errorf("failed to get new object metadata: %v", err)
+	}
+	oldObjectMeta, err := api.ObjectMetaFor(old)
+	if err != nil {
+		return nil, fmt.Errorf("failed to get old object metadata: %v", err)
+	}
+	allErrs = append(allErrs, validation.ValidateObjectMetaUpdate(objectMeta, oldObjectMeta, field.NewPath("metadata"))...)
+
+	return allErrs, nil
+}
+
+// BeforeUpdate ensures that common operations for all resources are performed on update. It only returns
+// errors that can be converted to api.Status. It will invoke update validation with the provided existing
+// and updated objects.
+func BeforeUpdate(strategy RESTUpdateStrategy, ctx api.Context, obj, old runtime.Object) error {
+	objectMeta, kind, kerr := objectMetaAndKind(strategy, obj)
+	if kerr != nil {
+		return kerr
+	}
+	if strategy.NamespaceScoped() {
+		if !api.ValidNamespace(ctx, objectMeta) {
+			return errors.NewBadRequest("the namespace of the provided object does not match the namespace sent on the request")
+		}
+	} else {
+		objectMeta.Namespace = api.NamespaceNone
+	}
+
+	strategy.PrepareForUpdate(obj, old)
+
+	// Ensure some common fields, like UID, are validated for all resources.
+	errs, err := validateCommonFields(obj, old)
+	if err != nil {
+		return errors.NewInternalError(err)
+	}
+
+	errs = append(errs, strategy.ValidateUpdate(ctx, obj, old)...)
+	if len(errs) > 0 {
+		return errors.NewInvalid(kind.GroupKind(), objectMeta.Name, errs)
+	}
+
+	strategy.Canonicalize(obj)
+
+	return nil
+}