mirror of https://github.com/docker/cli.git
143 lines
3.9 KiB
Go
143 lines
3.9 KiB
Go
/*
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Copyright 2014 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package runtime
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import (
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"errors"
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"k8s.io/apimachinery/pkg/conversion"
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"k8s.io/apimachinery/pkg/runtime/schema"
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)
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type encodable struct {
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E Encoder `json:"-"`
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obj Object
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versions []schema.GroupVersion
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}
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func (e encodable) GetObjectKind() schema.ObjectKind { return e.obj.GetObjectKind() }
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func (e encodable) DeepCopyObject() Object {
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out := e
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out.obj = e.obj.DeepCopyObject()
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copy(out.versions, e.versions)
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return out
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}
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// NewEncodable creates an object that will be encoded with the provided codec on demand.
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// Provided as a convenience for test cases dealing with internal objects.
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func NewEncodable(e Encoder, obj Object, versions ...schema.GroupVersion) Object {
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if _, ok := obj.(*Unknown); ok {
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return obj
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}
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return encodable{e, obj, versions}
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}
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func (e encodable) UnmarshalJSON(in []byte) error {
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return errors.New("runtime.encodable cannot be unmarshalled from JSON")
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}
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// Marshal may get called on pointers or values, so implement MarshalJSON on value.
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// http://stackoverflow.com/questions/21390979/custom-marshaljson-never-gets-called-in-go
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func (e encodable) MarshalJSON() ([]byte, error) {
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return Encode(e.E, e.obj)
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}
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// NewEncodableList creates an object that will be encoded with the provided codec on demand.
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// Provided as a convenience for test cases dealing with internal objects.
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func NewEncodableList(e Encoder, objects []Object, versions ...schema.GroupVersion) []Object {
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out := make([]Object, len(objects))
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for i := range objects {
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if _, ok := objects[i].(*Unknown); ok {
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out[i] = objects[i]
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continue
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}
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out[i] = NewEncodable(e, objects[i], versions...)
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}
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return out
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}
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func (e *Unknown) UnmarshalJSON(in []byte) error {
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if e == nil {
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return errors.New("runtime.Unknown: UnmarshalJSON on nil pointer")
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}
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e.TypeMeta = TypeMeta{}
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e.Raw = append(e.Raw[0:0], in...)
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e.ContentEncoding = ""
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e.ContentType = ContentTypeJSON
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return nil
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}
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// Marshal may get called on pointers or values, so implement MarshalJSON on value.
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// http://stackoverflow.com/questions/21390979/custom-marshaljson-never-gets-called-in-go
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func (e Unknown) MarshalJSON() ([]byte, error) {
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// If ContentType is unset, we assume this is JSON.
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if e.ContentType != "" && e.ContentType != ContentTypeJSON {
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return nil, errors.New("runtime.Unknown: MarshalJSON on non-json data")
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}
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if e.Raw == nil {
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return []byte("null"), nil
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}
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return e.Raw, nil
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}
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func Convert_runtime_Object_To_runtime_RawExtension(in *Object, out *RawExtension, s conversion.Scope) error {
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if in == nil {
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out.Raw = []byte("null")
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return nil
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}
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obj := *in
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if unk, ok := obj.(*Unknown); ok {
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if unk.Raw != nil {
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out.Raw = unk.Raw
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return nil
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}
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obj = out.Object
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}
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if obj == nil {
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out.Raw = nil
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return nil
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}
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out.Object = obj
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return nil
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}
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func Convert_runtime_RawExtension_To_runtime_Object(in *RawExtension, out *Object, s conversion.Scope) error {
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if in.Object != nil {
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*out = in.Object
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return nil
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}
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data := in.Raw
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if len(data) == 0 || (len(data) == 4 && string(data) == "null") {
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*out = nil
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return nil
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}
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*out = &Unknown{
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Raw: data,
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// TODO: Set ContentEncoding and ContentType appropriately.
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// Currently we set ContentTypeJSON to make tests passing.
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ContentType: ContentTypeJSON,
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}
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return nil
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}
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func DefaultEmbeddedConversions() []interface{} {
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return []interface{}{
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Convert_runtime_Object_To_runtime_RawExtension,
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Convert_runtime_RawExtension_To_runtime_Object,
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}
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}
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