/
encoding.go
101 lines (89 loc) · 3.95 KB
/
encoding.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
// Copyright (c) 2021 SAP SE or an SAP affiliate company. All rights reserved. This file is licensed under the Apache Software License, v. 2 except as noted otherwise in the LICENSE file
//
// 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 encoding
import (
"bytes"
"fmt"
schedulerconfig "github.com/gardener/gardener/pkg/scheduler/apis/config"
schedulerconfigv1alpha1 "github.com/gardener/gardener/pkg/scheduler/apis/config/v1alpha1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/serializer"
"k8s.io/apimachinery/pkg/runtime/serializer/versioning"
utilruntime "k8s.io/apimachinery/pkg/util/runtime"
)
var scheme *runtime.Scheme
func init() {
scheme = runtime.NewScheme()
utilruntime.Must(schedulerconfigv1alpha1.AddToScheme(scheme))
utilruntime.Must(schedulerconfig.AddToScheme(scheme))
}
// DecodeSchedulerConfiguration decodes the given raw extension into an external schedulerConfiguration version.
func DecodeSchedulerConfiguration(rawConfig *runtime.RawExtension, withDefaults bool) (*schedulerconfigv1alpha1.SchedulerConfiguration, error) {
if cfg, ok := rawConfig.Object.(*schedulerconfigv1alpha1.SchedulerConfiguration); ok {
return cfg, nil
}
return DecodeSchedulerConfigurationFromBytes(rawConfig.Raw, withDefaults)
}
// DecodeSchedulerConfigurationFromBytes decodes the given byte slice into an external schedulerConfiguration version.
func DecodeSchedulerConfigurationFromBytes(bytes []byte, withDefaults bool) (*schedulerconfigv1alpha1.SchedulerConfiguration, error) {
cfg := &schedulerconfigv1alpha1.SchedulerConfiguration{
TypeMeta: metav1.TypeMeta{
APIVersion: schedulerconfigv1alpha1.SchemeGroupVersion.String(),
Kind: "schedulerConfiguration",
},
}
if _, _, err := getDecoder(withDefaults).Decode(bytes, nil, cfg); err != nil {
return nil, err
}
return cfg, nil
}
// EncodeSchedulerConfiguration encodes the given external GardenletConfiguration version into a raw extension.
func EncodeSchedulerConfiguration(cfg *schedulerconfigv1alpha1.SchedulerConfiguration) (*runtime.RawExtension, error) {
raw, err := EncodeSchedulerConfigurationToBytes(cfg)
if err != nil {
return nil, err
}
return &runtime.RawExtension{
Raw: raw,
Object: cfg,
}, nil
}
// EncodeSchedulerConfigurationToBytes encodes the given external schedulerConfiguration version into a byte slice.
func EncodeSchedulerConfigurationToBytes(cfg *schedulerconfigv1alpha1.SchedulerConfiguration) ([]byte, error) {
encoder, err := getEncoder(schedulerconfigv1alpha1.SchemeGroupVersion, runtime.ContentTypeJSON)
if err != nil {
return nil, err
}
var b bytes.Buffer
if err := encoder.Encode(cfg, &b); err != nil {
return nil, err
}
return b.Bytes(), nil
}
func getDecoder(withDefaulter bool) runtime.Decoder {
if withDefaulter {
return serializer.NewCodecFactory(scheme).UniversalDecoder()
}
return versioning.NewCodec(nil, serializer.NewCodecFactory(scheme).UniversalDeserializer(), runtime.UnsafeObjectConvertor(scheme),
scheme, scheme, nil, runtime.DisabledGroupVersioner, runtime.InternalGroupVersioner, scheme.Name())
}
func getEncoder(gv runtime.GroupVersioner, mediaType string) (runtime.Encoder, error) {
codec := serializer.NewCodecFactory(scheme)
si, ok := runtime.SerializerInfoForMediaType(codec.SupportedMediaTypes(), mediaType)
if !ok {
return nil, fmt.Errorf("could not find encoder for media type %q", runtime.ContentTypeJSON)
}
return codec.EncoderForVersion(si.Serializer, gv), nil
}