Import of https://github.com/ciena/voltctl at commit 40d61fbf3f910ed4017cf67c9c79e8e1f82a33a5
Change-Id: I8464c59e60d76cb8612891db3303878975b5416c
diff --git a/vendor/k8s.io/apimachinery/pkg/runtime/serializer/json/json.go b/vendor/k8s.io/apimachinery/pkg/runtime/serializer/json/json.go
new file mode 100644
index 0000000..382c485
--- /dev/null
+++ b/vendor/k8s.io/apimachinery/pkg/runtime/serializer/json/json.go
@@ -0,0 +1,303 @@
+/*
+Copyright 2014 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 json
+
+import (
+ "encoding/json"
+ "io"
+ "strconv"
+ "unsafe"
+
+ "github.com/ghodss/yaml"
+ jsoniter "github.com/json-iterator/go"
+ "github.com/modern-go/reflect2"
+
+ "k8s.io/apimachinery/pkg/runtime"
+ "k8s.io/apimachinery/pkg/runtime/schema"
+ "k8s.io/apimachinery/pkg/runtime/serializer/recognizer"
+ "k8s.io/apimachinery/pkg/util/framer"
+ utilyaml "k8s.io/apimachinery/pkg/util/yaml"
+)
+
+// NewSerializer creates a JSON serializer that handles encoding versioned objects into the proper JSON form. If typer
+// is not nil, the object has the group, version, and kind fields set.
+func NewSerializer(meta MetaFactory, creater runtime.ObjectCreater, typer runtime.ObjectTyper, pretty bool) *Serializer {
+ return &Serializer{
+ meta: meta,
+ creater: creater,
+ typer: typer,
+ yaml: false,
+ pretty: pretty,
+ }
+}
+
+// NewYAMLSerializer creates a YAML serializer that handles encoding versioned objects into the proper YAML form. If typer
+// is not nil, the object has the group, version, and kind fields set. This serializer supports only the subset of YAML that
+// matches JSON, and will error if constructs are used that do not serialize to JSON.
+func NewYAMLSerializer(meta MetaFactory, creater runtime.ObjectCreater, typer runtime.ObjectTyper) *Serializer {
+ return &Serializer{
+ meta: meta,
+ creater: creater,
+ typer: typer,
+ yaml: true,
+ }
+}
+
+type Serializer struct {
+ meta MetaFactory
+ creater runtime.ObjectCreater
+ typer runtime.ObjectTyper
+ yaml bool
+ pretty bool
+}
+
+// Serializer implements Serializer
+var _ runtime.Serializer = &Serializer{}
+var _ recognizer.RecognizingDecoder = &Serializer{}
+
+type customNumberExtension struct {
+ jsoniter.DummyExtension
+}
+
+func (cne *customNumberExtension) CreateDecoder(typ reflect2.Type) jsoniter.ValDecoder {
+ if typ.String() == "interface {}" {
+ return customNumberDecoder{}
+ }
+ return nil
+}
+
+type customNumberDecoder struct {
+}
+
+func (customNumberDecoder) Decode(ptr unsafe.Pointer, iter *jsoniter.Iterator) {
+ switch iter.WhatIsNext() {
+ case jsoniter.NumberValue:
+ var number jsoniter.Number
+ iter.ReadVal(&number)
+ i64, err := strconv.ParseInt(string(number), 10, 64)
+ if err == nil {
+ *(*interface{})(ptr) = i64
+ return
+ }
+ f64, err := strconv.ParseFloat(string(number), 64)
+ if err == nil {
+ *(*interface{})(ptr) = f64
+ return
+ }
+ iter.ReportError("DecodeNumber", err.Error())
+ default:
+ *(*interface{})(ptr) = iter.Read()
+ }
+}
+
+// CaseSensitiveJsonIterator returns a jsoniterator API that's configured to be
+// case-sensitive when unmarshalling, and otherwise compatible with
+// the encoding/json standard library.
+func CaseSensitiveJsonIterator() jsoniter.API {
+ config := jsoniter.Config{
+ EscapeHTML: true,
+ SortMapKeys: true,
+ ValidateJsonRawMessage: true,
+ CaseSensitive: true,
+ }.Froze()
+ // Force jsoniter to decode number to interface{} via int64/float64, if possible.
+ config.RegisterExtension(&customNumberExtension{})
+ return config
+}
+
+// Private copy of jsoniter to try to shield against possible mutations
+// from outside. Still does not protect from package level jsoniter.Register*() functions - someone calling them
+// in some other library will mess with every usage of the jsoniter library in the whole program.
+// See https://github.com/json-iterator/go/issues/265
+var caseSensitiveJsonIterator = CaseSensitiveJsonIterator()
+
+// gvkWithDefaults returns group kind and version defaulting from provided default
+func gvkWithDefaults(actual, defaultGVK schema.GroupVersionKind) schema.GroupVersionKind {
+ if len(actual.Kind) == 0 {
+ actual.Kind = defaultGVK.Kind
+ }
+ if len(actual.Version) == 0 && len(actual.Group) == 0 {
+ actual.Group = defaultGVK.Group
+ actual.Version = defaultGVK.Version
+ }
+ if len(actual.Version) == 0 && actual.Group == defaultGVK.Group {
+ actual.Version = defaultGVK.Version
+ }
+ return actual
+}
+
+// Decode attempts to convert the provided data into YAML or JSON, extract the stored schema kind, apply the provided default gvk, and then
+// load that data into an object matching the desired schema kind or the provided into.
+// If into is *runtime.Unknown, the raw data will be extracted and no decoding will be performed.
+// If into is not registered with the typer, then the object will be straight decoded using normal JSON/YAML unmarshalling.
+// If into is provided and the original data is not fully qualified with kind/version/group, the type of the into will be used to alter the returned gvk.
+// If into is nil or data's gvk different from into's gvk, it will generate a new Object with ObjectCreater.New(gvk)
+// On success or most errors, the method will return the calculated schema kind.
+// The gvk calculate priority will be originalData > default gvk > into
+func (s *Serializer) Decode(originalData []byte, gvk *schema.GroupVersionKind, into runtime.Object) (runtime.Object, *schema.GroupVersionKind, error) {
+ if versioned, ok := into.(*runtime.VersionedObjects); ok {
+ into = versioned.Last()
+ obj, actual, err := s.Decode(originalData, gvk, into)
+ if err != nil {
+ return nil, actual, err
+ }
+ versioned.Objects = []runtime.Object{obj}
+ return versioned, actual, nil
+ }
+
+ data := originalData
+ if s.yaml {
+ altered, err := yaml.YAMLToJSON(data)
+ if err != nil {
+ return nil, nil, err
+ }
+ data = altered
+ }
+
+ actual, err := s.meta.Interpret(data)
+ if err != nil {
+ return nil, nil, err
+ }
+
+ if gvk != nil {
+ *actual = gvkWithDefaults(*actual, *gvk)
+ }
+
+ if unk, ok := into.(*runtime.Unknown); ok && unk != nil {
+ unk.Raw = originalData
+ unk.ContentType = runtime.ContentTypeJSON
+ unk.GetObjectKind().SetGroupVersionKind(*actual)
+ return unk, actual, nil
+ }
+
+ if into != nil {
+ _, isUnstructured := into.(runtime.Unstructured)
+ types, _, err := s.typer.ObjectKinds(into)
+ switch {
+ case runtime.IsNotRegisteredError(err), isUnstructured:
+ if err := caseSensitiveJsonIterator.Unmarshal(data, into); err != nil {
+ return nil, actual, err
+ }
+ return into, actual, nil
+ case err != nil:
+ return nil, actual, err
+ default:
+ *actual = gvkWithDefaults(*actual, types[0])
+ }
+ }
+
+ if len(actual.Kind) == 0 {
+ return nil, actual, runtime.NewMissingKindErr(string(originalData))
+ }
+ if len(actual.Version) == 0 {
+ return nil, actual, runtime.NewMissingVersionErr(string(originalData))
+ }
+
+ // use the target if necessary
+ obj, err := runtime.UseOrCreateObject(s.typer, s.creater, *actual, into)
+ if err != nil {
+ return nil, actual, err
+ }
+
+ if err := caseSensitiveJsonIterator.Unmarshal(data, obj); err != nil {
+ return nil, actual, err
+ }
+ return obj, actual, nil
+}
+
+// Encode serializes the provided object to the given writer.
+func (s *Serializer) Encode(obj runtime.Object, w io.Writer) error {
+ if s.yaml {
+ json, err := caseSensitiveJsonIterator.Marshal(obj)
+ if err != nil {
+ return err
+ }
+ data, err := yaml.JSONToYAML(json)
+ if err != nil {
+ return err
+ }
+ _, err = w.Write(data)
+ return err
+ }
+
+ if s.pretty {
+ data, err := caseSensitiveJsonIterator.MarshalIndent(obj, "", " ")
+ if err != nil {
+ return err
+ }
+ _, err = w.Write(data)
+ return err
+ }
+ encoder := json.NewEncoder(w)
+ return encoder.Encode(obj)
+}
+
+// RecognizesData implements the RecognizingDecoder interface.
+func (s *Serializer) RecognizesData(peek io.Reader) (ok, unknown bool, err error) {
+ if s.yaml {
+ // we could potentially look for '---'
+ return false, true, nil
+ }
+ _, _, ok = utilyaml.GuessJSONStream(peek, 2048)
+ return ok, false, nil
+}
+
+// Framer is the default JSON framing behavior, with newlines delimiting individual objects.
+var Framer = jsonFramer{}
+
+type jsonFramer struct{}
+
+// NewFrameWriter implements stream framing for this serializer
+func (jsonFramer) NewFrameWriter(w io.Writer) io.Writer {
+ // we can write JSON objects directly to the writer, because they are self-framing
+ return w
+}
+
+// NewFrameReader implements stream framing for this serializer
+func (jsonFramer) NewFrameReader(r io.ReadCloser) io.ReadCloser {
+ // we need to extract the JSON chunks of data to pass to Decode()
+ return framer.NewJSONFramedReader(r)
+}
+
+// YAMLFramer is the default JSON framing behavior, with newlines delimiting individual objects.
+var YAMLFramer = yamlFramer{}
+
+type yamlFramer struct{}
+
+// NewFrameWriter implements stream framing for this serializer
+func (yamlFramer) NewFrameWriter(w io.Writer) io.Writer {
+ return yamlFrameWriter{w}
+}
+
+// NewFrameReader implements stream framing for this serializer
+func (yamlFramer) NewFrameReader(r io.ReadCloser) io.ReadCloser {
+ // extract the YAML document chunks directly
+ return utilyaml.NewDocumentDecoder(r)
+}
+
+type yamlFrameWriter struct {
+ w io.Writer
+}
+
+// Write separates each document with the YAML document separator (`---` followed by line
+// break). Writers must write well formed YAML documents (include a final line break).
+func (w yamlFrameWriter) Write(data []byte) (n int, err error) {
+ if _, err := w.w.Write([]byte("---\n")); err != nil {
+ return 0, err
+ }
+ return w.w.Write(data)
+}