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decoder.go
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decoder.go
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package encoding
import (
"encoding/json"
"github.com/ghodss/yaml"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/apimachinery/pkg/runtime/serializer"
)
// Decoder is the standard interface for decoding and encoding resources
type Decoder interface {
Decode(data []byte, defaults *schema.GroupVersionKind) (runtime.Object, error)
EncodeYAML(obj runtime.Object) ([]byte, error)
EncodeJSON(obj runtime.Object) ([]byte, error)
}
type decoder struct {
scheme *runtime.Scheme
decoder runtime.Decoder
}
// NewDecoder creates a new universal decoder
func NewDecoder(scheme *runtime.Scheme, strict bool) Decoder {
return &decoder{
scheme: scheme,
decoder: serializer.NewCodecFactory(scheme, func(options *serializer.CodecFactoryOptions) {
options.Strict = strict
}).UniversalDeserializer(),
}
}
func (d *decoder) Decode(data []byte, defaults *schema.GroupVersionKind) (runtime.Object, error) {
obj, _, err := d.decoder.Decode(data, defaults, nil)
if err != nil {
// Decode into unstructured if the object is not registered
if runtime.IsNotRegisteredError(err) {
obj = &unstructured.Unstructured{}
return obj, yaml.Unmarshal(data, obj)
}
return nil, err
}
return obj, nil
}
func (d *decoder) EncodeYAML(o runtime.Object) ([]byte, error) {
return yaml.Marshal(o)
}
func (d *decoder) EncodeJSON(o runtime.Object) ([]byte, error) {
return json.Marshal(o)
}