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-rw-r--r--src/kube2msb/vendor/k8s.io/kubernetes/pkg/runtime/codec.go198
1 files changed, 198 insertions, 0 deletions
diff --git a/src/kube2msb/vendor/k8s.io/kubernetes/pkg/runtime/codec.go b/src/kube2msb/vendor/k8s.io/kubernetes/pkg/runtime/codec.go
new file mode 100644
index 0000000..3f7681c
--- /dev/null
+++ b/src/kube2msb/vendor/k8s.io/kubernetes/pkg/runtime/codec.go
@@ -0,0 +1,198 @@
+/*
+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 runtime
+
+import (
+ "bytes"
+ "encoding/base64"
+ "fmt"
+ "io"
+ "net/url"
+ "reflect"
+
+ "k8s.io/kubernetes/pkg/api/unversioned"
+ "k8s.io/kubernetes/pkg/conversion/queryparams"
+)
+
+// codec binds an encoder and decoder.
+type codec struct {
+ Encoder
+ Decoder
+}
+
+// NewCodec creates a Codec from an Encoder and Decoder.
+func NewCodec(e Encoder, d Decoder) Codec {
+ return codec{e, d}
+}
+
+// Encode is a convenience wrapper for encoding to a []byte from an Encoder
+func Encode(e Encoder, obj Object) ([]byte, error) {
+ // TODO: reuse buffer
+ buf := &bytes.Buffer{}
+ if err := e.Encode(obj, buf); err != nil {
+ return nil, err
+ }
+ return buf.Bytes(), nil
+}
+
+// Decode is a convenience wrapper for decoding data into an Object.
+func Decode(d Decoder, data []byte) (Object, error) {
+ obj, _, err := d.Decode(data, nil, nil)
+ return obj, err
+}
+
+// DecodeInto performs a Decode into the provided object.
+func DecodeInto(d Decoder, data []byte, into Object) error {
+ out, gvk, err := d.Decode(data, nil, into)
+ if err != nil {
+ return err
+ }
+ if out != into {
+ return fmt.Errorf("unable to decode %s into %v", gvk, reflect.TypeOf(into))
+ }
+ return nil
+}
+
+// EncodeOrDie is a version of Encode which will panic instead of returning an error. For tests.
+func EncodeOrDie(e Encoder, obj Object) string {
+ bytes, err := Encode(e, obj)
+ if err != nil {
+ panic(err)
+ }
+ return string(bytes)
+}
+
+// UseOrCreateObject returns obj if the canonical ObjectKind returned by the provided typer matches gvk, or
+// invokes the ObjectCreator to instantiate a new gvk. Returns an error if the typer cannot find the object.
+func UseOrCreateObject(t ObjectTyper, c ObjectCreater, gvk unversioned.GroupVersionKind, obj Object) (Object, error) {
+ if obj != nil {
+ into, _, err := t.ObjectKinds(obj)
+ if err != nil {
+ return nil, err
+ }
+ if gvk == into[0] {
+ return obj, nil
+ }
+ }
+ return c.New(gvk)
+}
+
+// NoopEncoder converts an Decoder to a Serializer or Codec for code that expects them but only uses decoding.
+type NoopEncoder struct {
+ Decoder
+}
+
+var _ Serializer = NoopEncoder{}
+
+func (n NoopEncoder) Encode(obj Object, w io.Writer) error {
+ return fmt.Errorf("encoding is not allowed for this codec: %v", reflect.TypeOf(n.Decoder))
+}
+
+// NoopDecoder converts an Encoder to a Serializer or Codec for code that expects them but only uses encoding.
+type NoopDecoder struct {
+ Encoder
+}
+
+var _ Serializer = NoopDecoder{}
+
+func (n NoopDecoder) Decode(data []byte, gvk *unversioned.GroupVersionKind, into Object) (Object, *unversioned.GroupVersionKind, error) {
+ return nil, nil, fmt.Errorf("decoding is not allowed for this codec: %v", reflect.TypeOf(n.Encoder))
+}
+
+// NewParameterCodec creates a ParameterCodec capable of transforming url values into versioned objects and back.
+func NewParameterCodec(scheme *Scheme) ParameterCodec {
+ return &parameterCodec{
+ typer: scheme,
+ convertor: scheme,
+ creator: scheme,
+ }
+}
+
+// parameterCodec implements conversion to and from query parameters and objects.
+type parameterCodec struct {
+ typer ObjectTyper
+ convertor ObjectConvertor
+ creator ObjectCreater
+}
+
+var _ ParameterCodec = &parameterCodec{}
+
+// DecodeParameters converts the provided url.Values into an object of type From with the kind of into, and then
+// converts that object to into (if necessary). Returns an error if the operation cannot be completed.
+func (c *parameterCodec) DecodeParameters(parameters url.Values, from unversioned.GroupVersion, into Object) error {
+ if len(parameters) == 0 {
+ return nil
+ }
+ targetGVKs, _, err := c.typer.ObjectKinds(into)
+ if err != nil {
+ return err
+ }
+ targetGVK := targetGVKs[0]
+ if targetGVK.GroupVersion() == from {
+ return c.convertor.Convert(&parameters, into)
+ }
+ input, err := c.creator.New(from.WithKind(targetGVK.Kind))
+ if err != nil {
+ return err
+ }
+ if err := c.convertor.Convert(&parameters, input); err != nil {
+ return err
+ }
+ return c.convertor.Convert(input, into)
+}
+
+// EncodeParameters converts the provided object into the to version, then converts that object to url.Values.
+// Returns an error if conversion is not possible.
+func (c *parameterCodec) EncodeParameters(obj Object, to unversioned.GroupVersion) (url.Values, error) {
+ gvks, _, err := c.typer.ObjectKinds(obj)
+ if err != nil {
+ return nil, err
+ }
+ gvk := gvks[0]
+ if to != gvk.GroupVersion() {
+ out, err := c.convertor.ConvertToVersion(obj, to)
+ if err != nil {
+ return nil, err
+ }
+ obj = out
+ }
+ return queryparams.Convert(obj)
+}
+
+type base64Serializer struct {
+ Serializer
+}
+
+func NewBase64Serializer(s Serializer) Serializer {
+ return &base64Serializer{s}
+}
+
+func (s base64Serializer) Encode(obj Object, stream io.Writer) error {
+ e := base64.NewEncoder(base64.StdEncoding, stream)
+ err := s.Serializer.Encode(obj, e)
+ e.Close()
+ return err
+}
+
+func (s base64Serializer) Decode(data []byte, defaults *unversioned.GroupVersionKind, into Object) (Object, *unversioned.GroupVersionKind, error) {
+ out := make([]byte, base64.StdEncoding.DecodedLen(len(data)))
+ n, err := base64.StdEncoding.Decode(out, data)
+ if err != nil {
+ return nil, nil, err
+ }
+ return s.Serializer.Decode(out[:n], defaults, into)
+}