mirror of
https://github.com/k3s-io/kubernetes.git
synced 2025-10-30 21:30:16 +00:00
104 lines
3.4 KiB
Go
104 lines
3.4 KiB
Go
/*
|
|
Copyright 2014 Google Inc. 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 resource
|
|
|
|
import (
|
|
"fmt"
|
|
"reflect"
|
|
|
|
"github.com/GoogleCloudPlatform/kubernetes/pkg/api/meta"
|
|
"github.com/GoogleCloudPlatform/kubernetes/pkg/runtime"
|
|
"github.com/GoogleCloudPlatform/kubernetes/pkg/util/yaml"
|
|
)
|
|
|
|
// Mapper is a convenience struct for holding references to the three interfaces
|
|
// needed to create Info for arbitrary objects.
|
|
type Mapper struct {
|
|
runtime.ObjectTyper
|
|
meta.RESTMapper
|
|
ClientMapper
|
|
}
|
|
|
|
// InfoForData creates an Info object for the given data. An error is returned
|
|
// if any of the decoding or client lookup steps fail. Name and namespace will be
|
|
// set into Info if the mapping's MetadataAccessor can retrieve them.
|
|
func (m *Mapper) InfoForData(data []byte, source string) (*Info, error) {
|
|
json, err := yaml.ToJSON(data)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("unable to parse %q: %v", source, err)
|
|
}
|
|
data = json
|
|
version, kind, err := m.DataVersionAndKind(data)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("unable to get type info from %q: %v", source, err)
|
|
}
|
|
mapping, err := m.RESTMapping(kind, version)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("unable to recognize %q: %v", source, err)
|
|
}
|
|
obj, err := mapping.Codec.Decode(data)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("unable to load %q: %v", source, err)
|
|
}
|
|
client, err := m.ClientForMapping(mapping)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("unable to connect to a server to handle %q: %v", mapping.Resource, err)
|
|
}
|
|
name, _ := mapping.MetadataAccessor.Name(obj)
|
|
namespace, _ := mapping.MetadataAccessor.Namespace(obj)
|
|
resourceVersion, _ := mapping.MetadataAccessor.ResourceVersion(obj)
|
|
return &Info{
|
|
Mapping: mapping,
|
|
Client: client,
|
|
Namespace: namespace,
|
|
Name: name,
|
|
|
|
Object: obj,
|
|
ResourceVersion: resourceVersion,
|
|
}, nil
|
|
}
|
|
|
|
// InfoForData creates an Info object for the given Object. An error is returned
|
|
// if the object cannot be introspected. Name and namespace will be set into Info
|
|
// if the mapping's MetadataAccessor can retrieve them.
|
|
func (m *Mapper) InfoForObject(obj runtime.Object) (*Info, error) {
|
|
version, kind, err := m.ObjectVersionAndKind(obj)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("unable to get type info from the object %q: %v", reflect.TypeOf(obj), err)
|
|
}
|
|
mapping, err := m.RESTMapping(kind, version)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("unable to recognize %q: %v", kind, err)
|
|
}
|
|
client, err := m.ClientForMapping(mapping)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("unable to connect to a server to handle %q: %v", mapping.Resource, err)
|
|
}
|
|
name, _ := mapping.MetadataAccessor.Name(obj)
|
|
namespace, _ := mapping.MetadataAccessor.Namespace(obj)
|
|
resourceVersion, _ := mapping.MetadataAccessor.ResourceVersion(obj)
|
|
return &Info{
|
|
Mapping: mapping,
|
|
Client: client,
|
|
Namespace: namespace,
|
|
Name: name,
|
|
|
|
Object: obj,
|
|
ResourceVersion: resourceVersion,
|
|
}, nil
|
|
}
|