scheme.go

/*
 * Copyright the original author or 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 customclient

import (
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
	"k8s.io/apimachinery/pkg/runtime"
	"k8s.io/apimachinery/pkg/runtime/schema"
	"k8s.io/apimachinery/pkg/runtime/serializer/json"
	"k8s.io/apimachinery/pkg/runtime/serializer/versioning"
)

var watchScheme = runtime.NewScheme()
var basicScheme = runtime.NewScheme()
var deleteScheme = runtime.NewScheme()
var parameterScheme = runtime.NewScheme()
var versionV1 = schema.GroupVersion{Version: "v1"}

func init() {
	metav1.AddToGroupVersion(watchScheme, versionV1)
	metav1.AddToGroupVersion(basicScheme, versionV1)
	metav1.AddToGroupVersion(parameterScheme, versionV1)
	metav1.AddToGroupVersion(deleteScheme, versionV1)
}

// basicNegotiatedSerializer is used to handle discovery and error handling serialization.
type basicNegotiatedSerializer struct{}

func (s basicNegotiatedSerializer) SupportedMediaTypes() []runtime.SerializerInfo {
	return []runtime.SerializerInfo{
		{
			MediaType:        "application/json",
			EncodesAsText:    true,
			Serializer:       json.NewSerializer(json.DefaultMetaFactory, basicScheme, basicScheme, false),
			PrettySerializer: json.NewSerializer(json.DefaultMetaFactory, basicScheme, basicScheme, true),
			StreamSerializer: &runtime.StreamSerializerInfo{
				EncodesAsText: true,
				Serializer:    json.NewSerializer(json.DefaultMetaFactory, basicScheme, basicScheme, false),
				Framer:        json.Framer,
			},
		},
	}
}

func (s basicNegotiatedSerializer) EncoderForVersion(encoder runtime.Encoder, gv runtime.GroupVersioner) runtime.Encoder {
	return versioning.NewDefaultingCodecForScheme(watchScheme, encoder, nil, gv, nil)
}

func (s basicNegotiatedSerializer) DecoderToVersion(decoder runtime.Decoder, gv runtime.GroupVersioner) runtime.Decoder {
	return versioning.NewDefaultingCodecForScheme(watchScheme, nil, decoder, nil, gv)
}