e0ebcf4216
The codec factory should support two distinct interfaces - negotiating for a serializer with a client, vs reading or writing data to a storage form (etcd, disk, etc). Make the EncodeForVersion and DecodeToVersion methods only take Encoder and Decoder, and slight refactoring elsewhere. In the storage factory, use a content type to control what serializer to pick, and use the universal deserializer. This ensures that storage can read JSON (which might be from older objects) while only writing protobuf. Add exceptions for those resources that may not be able to write to protobuf (specifically third party resources, but potentially others in the future).
68 lines
2.3 KiB
Go
68 lines
2.3 KiB
Go
/*
|
|
Copyright 2016 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 framework
|
|
|
|
import (
|
|
"k8s.io/kubernetes/pkg/api/unversioned"
|
|
"k8s.io/kubernetes/pkg/runtime"
|
|
"k8s.io/kubernetes/pkg/runtime/serializer/versioning"
|
|
)
|
|
|
|
// NewSingleContentTypeSerializer wraps a serializer in a NegotiatedSerializer that handles one content type
|
|
func NewSingleContentTypeSerializer(scheme *runtime.Scheme, serializer runtime.Serializer, contentType string) runtime.StorageSerializer {
|
|
return &wrappedSerializer{
|
|
scheme: scheme,
|
|
serializer: serializer,
|
|
contentType: contentType,
|
|
}
|
|
}
|
|
|
|
type wrappedSerializer struct {
|
|
scheme *runtime.Scheme
|
|
serializer runtime.Serializer
|
|
contentType string
|
|
}
|
|
|
|
var _ runtime.StorageSerializer = &wrappedSerializer{}
|
|
|
|
func (s *wrappedSerializer) SupportedMediaTypes() []string {
|
|
return []string{s.contentType}
|
|
}
|
|
func (s *wrappedSerializer) SerializerForMediaType(mediaType string, options map[string]string) (runtime.SerializerInfo, bool) {
|
|
if mediaType != s.contentType {
|
|
return runtime.SerializerInfo{}, false
|
|
}
|
|
|
|
return runtime.SerializerInfo{
|
|
Serializer: s.serializer,
|
|
MediaType: mediaType,
|
|
EncodesAsText: true, // TODO: this should be parameterized
|
|
}, true
|
|
}
|
|
|
|
func (s *wrappedSerializer) UniversalDeserializer() runtime.Decoder {
|
|
return s.serializer
|
|
}
|
|
|
|
func (s *wrappedSerializer) EncoderForVersion(encoder runtime.Encoder, gv unversioned.GroupVersion) runtime.Encoder {
|
|
return versioning.NewCodec(encoder, nil, s.scheme, s.scheme, s.scheme, runtime.ObjectTyperToTyper(s.scheme), []unversioned.GroupVersion{gv}, nil)
|
|
}
|
|
|
|
func (s *wrappedSerializer) DecoderToVersion(decoder runtime.Decoder, gv unversioned.GroupVersion) runtime.Decoder {
|
|
return versioning.NewCodec(nil, decoder, s.scheme, s.scheme, s.scheme, runtime.ObjectTyperToTyper(s.scheme), nil, []unversioned.GroupVersion{gv})
|
|
}
|