Split unstructured.go into several parts
No functional changes
This commit is contained in:
Mikhail Mazurskiy
@@ -0,0 +1,378 @@
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/*
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Copyright 2015 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 unstructured
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import (
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gojson "encoding/json"
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"errors"
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"fmt"
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"io"
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"strings"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/conversion/unstructured"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/runtime/schema"
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"k8s.io/apimachinery/pkg/types"
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"k8s.io/apimachinery/pkg/util/json"
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)
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func getNestedField(obj map[string]interface{}, fields ...string) interface{} {
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var val interface{} = obj
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for _, field := range fields {
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if _, ok := val.(map[string]interface{}); !ok {
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return nil
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}
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val = val.(map[string]interface{})[field]
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}
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return val
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}
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func getNestedString(obj map[string]interface{}, fields ...string) string {
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if str, ok := getNestedField(obj, fields...).(string); ok {
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return str
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}
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return ""
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}
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func getNestedInt64(obj map[string]interface{}, fields ...string) int64 {
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if str, ok := getNestedField(obj, fields...).(int64); ok {
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return str
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}
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return 0
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}
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func getNestedInt64Pointer(obj map[string]interface{}, fields ...string) *int64 {
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nested := getNestedField(obj, fields...)
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switch n := nested.(type) {
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case int64:
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return &n
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case *int64:
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return n
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default:
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return nil
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}
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}
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func getNestedSlice(obj map[string]interface{}, fields ...string) []string {
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if m, ok := getNestedField(obj, fields...).([]interface{}); ok {
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strSlice := make([]string, 0, len(m))
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for _, v := range m {
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if str, ok := v.(string); ok {
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strSlice = append(strSlice, str)
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}
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}
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return strSlice
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}
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return nil
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}
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func getNestedMap(obj map[string]interface{}, fields ...string) map[string]string {
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if m, ok := getNestedField(obj, fields...).(map[string]interface{}); ok {
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strMap := make(map[string]string, len(m))
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for k, v := range m {
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if str, ok := v.(string); ok {
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strMap[k] = str
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}
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}
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return strMap
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}
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return nil
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}
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func setNestedField(obj map[string]interface{}, value interface{}, fields ...string) {
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m := obj
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if len(fields) > 1 {
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for _, field := range fields[0 : len(fields)-1] {
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if _, ok := m[field].(map[string]interface{}); !ok {
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m[field] = make(map[string]interface{})
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}
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m = m[field].(map[string]interface{})
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}
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}
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m[fields[len(fields)-1]] = value
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}
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func setNestedSlice(obj map[string]interface{}, value []string, fields ...string) {
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m := make([]interface{}, 0, len(value))
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for _, v := range value {
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m = append(m, v)
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}
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setNestedField(obj, m, fields...)
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}
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func setNestedMap(obj map[string]interface{}, value map[string]string, fields ...string) {
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m := make(map[string]interface{}, len(value))
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for k, v := range value {
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m[k] = v
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}
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setNestedField(obj, m, fields...)
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}
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func extractOwnerReference(src interface{}) metav1.OwnerReference {
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v := src.(map[string]interface{})
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// though this field is a *bool, but when decoded from JSON, it's
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// unmarshalled as bool.
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var controllerPtr *bool
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controller, ok := (getNestedField(v, "controller")).(bool)
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if !ok {
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controllerPtr = nil
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} else {
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controllerCopy := controller
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controllerPtr = &controllerCopy
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}
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var blockOwnerDeletionPtr *bool
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blockOwnerDeletion, ok := (getNestedField(v, "blockOwnerDeletion")).(bool)
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if !ok {
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blockOwnerDeletionPtr = nil
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} else {
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blockOwnerDeletionCopy := blockOwnerDeletion
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blockOwnerDeletionPtr = &blockOwnerDeletionCopy
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}
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return metav1.OwnerReference{
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Kind: getNestedString(v, "kind"),
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Name: getNestedString(v, "name"),
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APIVersion: getNestedString(v, "apiVersion"),
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UID: (types.UID)(getNestedString(v, "uid")),
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Controller: controllerPtr,
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BlockOwnerDeletion: blockOwnerDeletionPtr,
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}
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}
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func setOwnerReference(src metav1.OwnerReference) map[string]interface{} {
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ret := make(map[string]interface{})
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setNestedField(ret, src.Kind, "kind")
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setNestedField(ret, src.Name, "name")
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setNestedField(ret, src.APIVersion, "apiVersion")
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setNestedField(ret, string(src.UID), "uid")
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// json.Unmarshal() extracts boolean json fields as bool, not as *bool and hence extractOwnerReference()
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// expects bool or a missing field, not *bool. So if pointer is nil, fields are omitted from the ret object.
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// If pointer is non-nil, they are set to the referenced value.
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if src.Controller != nil {
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setNestedField(ret, *src.Controller, "controller")
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}
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if src.BlockOwnerDeletion != nil {
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setNestedField(ret, *src.BlockOwnerDeletion, "blockOwnerDeletion")
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}
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return ret
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}
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func getOwnerReferences(object map[string]interface{}) ([]map[string]interface{}, error) {
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field := getNestedField(object, "metadata", "ownerReferences")
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if field == nil {
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return nil, fmt.Errorf("cannot find field metadata.ownerReferences in %v", object)
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}
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ownerReferences, ok := field.([]map[string]interface{})
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if ok {
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return ownerReferences, nil
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}
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// TODO: This is hacky...
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interfaces, ok := field.([]interface{})
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if !ok {
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return nil, fmt.Errorf("expect metadata.ownerReferences to be a slice in %#v", object)
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}
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ownerReferences = make([]map[string]interface{}, 0, len(interfaces))
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for i := 0; i < len(interfaces); i++ {
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r, ok := interfaces[i].(map[string]interface{})
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if !ok {
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return nil, fmt.Errorf("expect element metadata.ownerReferences to be a map[string]interface{} in %#v", object)
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}
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ownerReferences = append(ownerReferences, r)
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}
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return ownerReferences, nil
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}
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var converter = unstructured.NewConverter(false)
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// UnstructuredJSONScheme is capable of converting JSON data into the Unstructured
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// type, which can be used for generic access to objects without a predefined scheme.
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// TODO: move into serializer/json.
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var UnstructuredJSONScheme runtime.Codec = unstructuredJSONScheme{}
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type unstructuredJSONScheme struct{}
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func (s unstructuredJSONScheme) Decode(data []byte, _ *schema.GroupVersionKind, obj runtime.Object) (runtime.Object, *schema.GroupVersionKind, error) {
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var err error
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if obj != nil {
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err = s.decodeInto(data, obj)
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} else {
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obj, err = s.decode(data)
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}
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if err != nil {
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return nil, nil, err
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}
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gvk := obj.GetObjectKind().GroupVersionKind()
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if len(gvk.Kind) == 0 {
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return nil, &gvk, runtime.NewMissingKindErr(string(data))
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}
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return obj, &gvk, nil
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}
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func (unstructuredJSONScheme) Encode(obj runtime.Object, w io.Writer) error {
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switch t := obj.(type) {
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case *Unstructured:
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return json.NewEncoder(w).Encode(t.Object)
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case *UnstructuredList:
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items := make([]map[string]interface{}, 0, len(t.Items))
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for _, i := range t.Items {
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items = append(items, i.Object)
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}
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listObj := make(map[string]interface{}, len(t.Object)+1)
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for k, v := range t.Object { // Make a shallow copy
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listObj[k] = v
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}
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listObj["items"] = items
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return json.NewEncoder(w).Encode(listObj)
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case *runtime.Unknown:
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// TODO: Unstructured needs to deal with ContentType.
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_, err := w.Write(t.Raw)
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return err
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default:
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return json.NewEncoder(w).Encode(t)
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}
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}
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func (s unstructuredJSONScheme) decode(data []byte) (runtime.Object, error) {
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type detector struct {
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Items gojson.RawMessage
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}
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var det detector
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if err := json.Unmarshal(data, &det); err != nil {
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return nil, err
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}
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if det.Items != nil {
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list := &UnstructuredList{}
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err := s.decodeToList(data, list)
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return list, err
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}
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// No Items field, so it wasn't a list.
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unstruct := &Unstructured{}
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err := s.decodeToUnstructured(data, unstruct)
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return unstruct, err
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}
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func (s unstructuredJSONScheme) decodeInto(data []byte, obj runtime.Object) error {
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switch x := obj.(type) {
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case *Unstructured:
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return s.decodeToUnstructured(data, x)
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case *UnstructuredList:
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return s.decodeToList(data, x)
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case *runtime.VersionedObjects:
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o, err := s.decode(data)
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if err == nil {
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x.Objects = []runtime.Object{o}
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}
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return err
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default:
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return json.Unmarshal(data, x)
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}
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}
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func (unstructuredJSONScheme) decodeToUnstructured(data []byte, unstruct *Unstructured) error {
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m := make(map[string]interface{})
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if err := json.Unmarshal(data, &m); err != nil {
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return err
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}
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unstruct.Object = m
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return nil
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}
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func (s unstructuredJSONScheme) decodeToList(data []byte, list *UnstructuredList) error {
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type decodeList struct {
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Items []gojson.RawMessage
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}
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var dList decodeList
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if err := json.Unmarshal(data, &dList); err != nil {
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return err
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}
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if err := json.Unmarshal(data, &list.Object); err != nil {
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return err
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}
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// For typed lists, e.g., a PodList, API server doesn't set each item's
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// APIVersion and Kind. We need to set it.
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listAPIVersion := list.GetAPIVersion()
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listKind := list.GetKind()
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itemKind := strings.TrimSuffix(listKind, "List")
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delete(list.Object, "items")
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list.Items = nil
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for _, i := range dList.Items {
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unstruct := &Unstructured{}
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if err := s.decodeToUnstructured([]byte(i), unstruct); err != nil {
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return err
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}
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// This is hacky. Set the item's Kind and APIVersion to those inferred
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// from the List.
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if len(unstruct.GetKind()) == 0 && len(unstruct.GetAPIVersion()) == 0 {
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unstruct.SetKind(itemKind)
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unstruct.SetAPIVersion(listAPIVersion)
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}
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list.Items = append(list.Items, *unstruct)
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}
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return nil
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}
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// UnstructuredObjectConverter is an ObjectConverter for use with
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// Unstructured objects. Since it has no schema or type information,
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// it will only succeed for no-op conversions. This is provided as a
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// sane implementation for APIs that require an object converter.
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type UnstructuredObjectConverter struct{}
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func (UnstructuredObjectConverter) Convert(in, out, context interface{}) error {
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unstructIn, ok := in.(*Unstructured)
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if !ok {
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return fmt.Errorf("input type %T in not valid for unstructured conversion", in)
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}
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unstructOut, ok := out.(*Unstructured)
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if !ok {
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return fmt.Errorf("output type %T in not valid for unstructured conversion", out)
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}
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// maybe deep copy the map? It is documented in the
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// ObjectConverter interface that this function is not
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// guaranteeed to not mutate the input. Or maybe set the input
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// object to nil.
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unstructOut.Object = unstructIn.Object
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return nil
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}
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func (UnstructuredObjectConverter) ConvertToVersion(in runtime.Object, target runtime.GroupVersioner) (runtime.Object, error) {
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if kind := in.GetObjectKind().GroupVersionKind(); !kind.Empty() {
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gvk, ok := target.KindForGroupVersionKinds([]schema.GroupVersionKind{kind})
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if !ok {
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// TODO: should this be a typed error?
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return nil, fmt.Errorf("%v is unstructured and is not suitable for converting to %q", kind, target)
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}
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in.GetObjectKind().SetGroupVersionKind(gvk)
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}
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return in, nil
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}
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func (UnstructuredObjectConverter) ConvertFieldLabel(version, kind, label, value string) (string, string, error) {
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return "", "", errors.New("unstructured cannot convert field labels")
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}
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@@ -0,0 +1,43 @@
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/*
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Copyright 2017 The Kubernetes 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.
|
||||
*/
|
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package unstructured
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import (
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"io/ioutil"
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"sync"
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"testing"
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"github.com/stretchr/testify/assert"
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)
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// TestCodecOfUnstructuredList tests that there are no data races in Encode().
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// i.e. that it does not mutate the object being encoded.
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func TestCodecOfUnstructuredList(t *testing.T) {
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var wg sync.WaitGroup
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concurrency := 10
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list := UnstructuredList{
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Object: map[string]interface{}{},
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}
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wg.Add(concurrency)
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for i := 0; i < concurrency; i++ {
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go func() {
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defer wg.Done()
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assert.NoError(t, UnstructuredJSONScheme.Encode(&list, ioutil.Discard))
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}()
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}
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wg.Wait()
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}
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@@ -18,11 +18,7 @@ package unstructured
|
||||
|
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import (
|
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"bytes"
|
||||
gojson "encoding/json"
|
||||
"errors"
|
||||
"fmt"
|
||||
"io"
|
||||
"strings"
|
||||
|
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"github.com/golang/glog"
|
||||
|
||||
@@ -31,7 +27,6 @@ import (
|
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"k8s.io/apimachinery/pkg/runtime"
|
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"k8s.io/apimachinery/pkg/runtime/schema"
|
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"k8s.io/apimachinery/pkg/types"
|
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"k8s.io/apimachinery/pkg/util/json"
|
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utilruntime "k8s.io/apimachinery/pkg/util/runtime"
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)
|
||||
|
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@@ -54,13 +49,10 @@ type Unstructured struct {
|
||||
|
||||
var _ metav1.Object = &Unstructured{}
|
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var _ runtime.Unstructured = &Unstructured{}
|
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var _ runtime.Unstructured = &UnstructuredList{}
|
||||
|
||||
func (obj *Unstructured) GetObjectKind() schema.ObjectKind { return obj }
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func (obj *UnstructuredList) GetObjectKind() schema.ObjectKind { return obj }
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func (obj *Unstructured) GetObjectKind() schema.ObjectKind { return obj }
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|
||||
func (obj *Unstructured) IsUnstructuredObject() {}
|
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func (obj *UnstructuredList) IsUnstructuredObject() {}
|
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func (obj *Unstructured) IsUnstructuredObject() {}
|
||||
|
||||
func (obj *Unstructured) IsList() bool {
|
||||
if obj.Object != nil {
|
||||
@@ -69,7 +61,6 @@ func (obj *Unstructured) IsList() bool {
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}
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||||
return false
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||||
}
|
||||
func (obj *UnstructuredList) IsList() bool { return true }
|
||||
|
||||
func (obj *Unstructured) EachListItem(fn func(runtime.Object) error) error {
|
||||
if obj.Object == nil {
|
||||
@@ -95,15 +86,6 @@ func (obj *Unstructured) EachListItem(fn func(runtime.Object) error) error {
|
||||
return nil
|
||||
}
|
||||
|
||||
func (obj *UnstructuredList) EachListItem(fn func(runtime.Object) error) error {
|
||||
for i := range obj.Items {
|
||||
if err := fn(&obj.Items[i]); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (obj *Unstructured) UnstructuredContent() map[string]interface{} {
|
||||
if obj.Object == nil {
|
||||
obj.Object = make(map[string]interface{})
|
||||
@@ -111,25 +93,6 @@ func (obj *Unstructured) UnstructuredContent() map[string]interface{} {
|
||||
return obj.Object
|
||||
}
|
||||
|
||||
// UnstructuredContent returns a map contain an overlay of the Items field onto
|
||||
// the Object field. Items always overwrites overlay. Changing "items" in the
|
||||
// returned object will affect items in the underlying Items field, but changing
|
||||
// the "items" slice itself will have no effect.
|
||||
// TODO: expose SetUnstructuredContent on runtime.Unstructured that allows
|
||||
// items to be changed.
|
||||
func (obj *UnstructuredList) UnstructuredContent() map[string]interface{} {
|
||||
out := obj.Object
|
||||
if out == nil {
|
||||
out = make(map[string]interface{})
|
||||
}
|
||||
items := make([]interface{}, len(obj.Items))
|
||||
for i, item := range obj.Items {
|
||||
items[i] = item.Object
|
||||
}
|
||||
out["items"] = items
|
||||
return out
|
||||
}
|
||||
|
||||
// MarshalJSON ensures that the unstructured object produces proper
|
||||
// JSON when passed to Go's standard JSON library.
|
||||
func (u *Unstructured) MarshalJSON() ([]byte, error) {
|
||||
@@ -155,112 +118,6 @@ func (in *Unstructured) DeepCopy() *Unstructured {
|
||||
return out
|
||||
}
|
||||
|
||||
func (in *UnstructuredList) DeepCopy() *UnstructuredList {
|
||||
if in == nil {
|
||||
return nil
|
||||
}
|
||||
out := new(UnstructuredList)
|
||||
*out = *in
|
||||
out.Object = unstructured.DeepCopyJSON(in.Object)
|
||||
out.Items = make([]Unstructured, len(in.Items))
|
||||
for i := range in.Items {
|
||||
in.Items[i].DeepCopyInto(&out.Items[i])
|
||||
}
|
||||
return out
|
||||
}
|
||||
|
||||
func getNestedField(obj map[string]interface{}, fields ...string) interface{} {
|
||||
var val interface{} = obj
|
||||
for _, field := range fields {
|
||||
if _, ok := val.(map[string]interface{}); !ok {
|
||||
return nil
|
||||
}
|
||||
val = val.(map[string]interface{})[field]
|
||||
}
|
||||
return val
|
||||
}
|
||||
|
||||
func getNestedString(obj map[string]interface{}, fields ...string) string {
|
||||
if str, ok := getNestedField(obj, fields...).(string); ok {
|
||||
return str
|
||||
}
|
||||
return ""
|
||||
}
|
||||
|
||||
func getNestedInt64(obj map[string]interface{}, fields ...string) int64 {
|
||||
if str, ok := getNestedField(obj, fields...).(int64); ok {
|
||||
return str
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
func getNestedInt64Pointer(obj map[string]interface{}, fields ...string) *int64 {
|
||||
nested := getNestedField(obj, fields...)
|
||||
switch n := nested.(type) {
|
||||
case int64:
|
||||
return &n
|
||||
case *int64:
|
||||
return n
|
||||
default:
|
||||
return nil
|
||||
}
|
||||
}
|
||||
|
||||
func getNestedSlice(obj map[string]interface{}, fields ...string) []string {
|
||||
if m, ok := getNestedField(obj, fields...).([]interface{}); ok {
|
||||
strSlice := make([]string, 0, len(m))
|
||||
for _, v := range m {
|
||||
if str, ok := v.(string); ok {
|
||||
strSlice = append(strSlice, str)
|
||||
}
|
||||
}
|
||||
return strSlice
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func getNestedMap(obj map[string]interface{}, fields ...string) map[string]string {
|
||||
if m, ok := getNestedField(obj, fields...).(map[string]interface{}); ok {
|
||||
strMap := make(map[string]string, len(m))
|
||||
for k, v := range m {
|
||||
if str, ok := v.(string); ok {
|
||||
strMap[k] = str
|
||||
}
|
||||
}
|
||||
return strMap
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func setNestedField(obj map[string]interface{}, value interface{}, fields ...string) {
|
||||
m := obj
|
||||
if len(fields) > 1 {
|
||||
for _, field := range fields[0 : len(fields)-1] {
|
||||
if _, ok := m[field].(map[string]interface{}); !ok {
|
||||
m[field] = make(map[string]interface{})
|
||||
}
|
||||
m = m[field].(map[string]interface{})
|
||||
}
|
||||
}
|
||||
m[fields[len(fields)-1]] = value
|
||||
}
|
||||
|
||||
func setNestedSlice(obj map[string]interface{}, value []string, fields ...string) {
|
||||
m := make([]interface{}, 0, len(value))
|
||||
for _, v := range value {
|
||||
m = append(m, v)
|
||||
}
|
||||
setNestedField(obj, m, fields...)
|
||||
}
|
||||
|
||||
func setNestedMap(obj map[string]interface{}, value map[string]string, fields ...string) {
|
||||
m := make(map[string]interface{}, len(value))
|
||||
for k, v := range value {
|
||||
m[k] = v
|
||||
}
|
||||
setNestedField(obj, m, fields...)
|
||||
}
|
||||
|
||||
func (u *Unstructured) setNestedField(value interface{}, fields ...string) {
|
||||
if u.Object == nil {
|
||||
u.Object = make(map[string]interface{})
|
||||
@@ -282,79 +139,6 @@ func (u *Unstructured) setNestedMap(value map[string]string, fields ...string) {
|
||||
setNestedMap(u.Object, value, fields...)
|
||||
}
|
||||
|
||||
func extractOwnerReference(src interface{}) metav1.OwnerReference {
|
||||
v := src.(map[string]interface{})
|
||||
// though this field is a *bool, but when decoded from JSON, it's
|
||||
// unmarshalled as bool.
|
||||
var controllerPtr *bool
|
||||
controller, ok := (getNestedField(v, "controller")).(bool)
|
||||
if !ok {
|
||||
controllerPtr = nil
|
||||
} else {
|
||||
controllerCopy := controller
|
||||
controllerPtr = &controllerCopy
|
||||
}
|
||||
var blockOwnerDeletionPtr *bool
|
||||
blockOwnerDeletion, ok := (getNestedField(v, "blockOwnerDeletion")).(bool)
|
||||
if !ok {
|
||||
blockOwnerDeletionPtr = nil
|
||||
} else {
|
||||
blockOwnerDeletionCopy := blockOwnerDeletion
|
||||
blockOwnerDeletionPtr = &blockOwnerDeletionCopy
|
||||
}
|
||||
return metav1.OwnerReference{
|
||||
Kind: getNestedString(v, "kind"),
|
||||
Name: getNestedString(v, "name"),
|
||||
APIVersion: getNestedString(v, "apiVersion"),
|
||||
UID: (types.UID)(getNestedString(v, "uid")),
|
||||
Controller: controllerPtr,
|
||||
BlockOwnerDeletion: blockOwnerDeletionPtr,
|
||||
}
|
||||
}
|
||||
|
||||
func setOwnerReference(src metav1.OwnerReference) map[string]interface{} {
|
||||
ret := make(map[string]interface{})
|
||||
setNestedField(ret, src.Kind, "kind")
|
||||
setNestedField(ret, src.Name, "name")
|
||||
setNestedField(ret, src.APIVersion, "apiVersion")
|
||||
setNestedField(ret, string(src.UID), "uid")
|
||||
// json.Unmarshal() extracts boolean json fields as bool, not as *bool and hence extractOwnerReference()
|
||||
// expects bool or a missing field, not *bool. So if pointer is nil, fields are omitted from the ret object.
|
||||
// If pointer is non-nil, they are set to the referenced value.
|
||||
if src.Controller != nil {
|
||||
setNestedField(ret, *src.Controller, "controller")
|
||||
}
|
||||
if src.BlockOwnerDeletion != nil {
|
||||
setNestedField(ret, *src.BlockOwnerDeletion, "blockOwnerDeletion")
|
||||
}
|
||||
return ret
|
||||
}
|
||||
|
||||
func getOwnerReferences(object map[string]interface{}) ([]map[string]interface{}, error) {
|
||||
field := getNestedField(object, "metadata", "ownerReferences")
|
||||
if field == nil {
|
||||
return nil, fmt.Errorf("cannot find field metadata.ownerReferences in %v", object)
|
||||
}
|
||||
ownerReferences, ok := field.([]map[string]interface{})
|
||||
if ok {
|
||||
return ownerReferences, nil
|
||||
}
|
||||
// TODO: This is hacky...
|
||||
interfaces, ok := field.([]interface{})
|
||||
if !ok {
|
||||
return nil, fmt.Errorf("expect metadata.ownerReferences to be a slice in %#v", object)
|
||||
}
|
||||
ownerReferences = make([]map[string]interface{}, 0, len(interfaces))
|
||||
for i := 0; i < len(interfaces); i++ {
|
||||
r, ok := interfaces[i].(map[string]interface{})
|
||||
if !ok {
|
||||
return nil, fmt.Errorf("expect element metadata.ownerReferences to be a map[string]interface{} in %#v", object)
|
||||
}
|
||||
ownerReferences = append(ownerReferences, r)
|
||||
}
|
||||
return ownerReferences, nil
|
||||
}
|
||||
|
||||
func (u *Unstructured) GetOwnerReferences() []metav1.OwnerReference {
|
||||
original, err := getOwnerReferences(u.Object)
|
||||
if err != nil {
|
||||
@@ -523,8 +307,6 @@ func (u *Unstructured) GroupVersionKind() schema.GroupVersionKind {
|
||||
return gvk
|
||||
}
|
||||
|
||||
var converter = unstructured.NewConverter(false)
|
||||
|
||||
func (u *Unstructured) GetInitializers() *metav1.Initializers {
|
||||
field := getNestedField(u.Object, "metadata", "initializers")
|
||||
if field == nil {
|
||||
@@ -571,272 +353,3 @@ func (u *Unstructured) GetClusterName() string {
|
||||
func (u *Unstructured) SetClusterName(clusterName string) {
|
||||
u.setNestedField(clusterName, "metadata", "clusterName")
|
||||
}
|
||||
|
||||
// UnstructuredList allows lists that do not have Golang structs
|
||||
// registered to be manipulated generically. This can be used to deal
|
||||
// with the API lists from a plug-in.
|
||||
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
|
||||
// +k8s:deepcopy-gen=true
|
||||
type UnstructuredList struct {
|
||||
Object map[string]interface{}
|
||||
|
||||
// Items is a list of unstructured objects.
|
||||
Items []Unstructured `json:"items"`
|
||||
}
|
||||
|
||||
var _ metav1.ListInterface = &UnstructuredList{}
|
||||
|
||||
// MarshalJSON ensures that the unstructured list object produces proper
|
||||
// JSON when passed to Go's standard JSON library.
|
||||
func (u *UnstructuredList) MarshalJSON() ([]byte, error) {
|
||||
var buf bytes.Buffer
|
||||
err := UnstructuredJSONScheme.Encode(u, &buf)
|
||||
return buf.Bytes(), err
|
||||
}
|
||||
|
||||
// UnmarshalJSON ensures that the unstructured list object properly
|
||||
// decodes JSON when passed to Go's standard JSON library.
|
||||
func (u *UnstructuredList) UnmarshalJSON(b []byte) error {
|
||||
_, _, err := UnstructuredJSONScheme.Decode(b, nil, u)
|
||||
return err
|
||||
}
|
||||
|
||||
func (u *UnstructuredList) setNestedField(value interface{}, fields ...string) {
|
||||
if u.Object == nil {
|
||||
u.Object = make(map[string]interface{})
|
||||
}
|
||||
setNestedField(u.Object, value, fields...)
|
||||
}
|
||||
|
||||
func (u *UnstructuredList) GetAPIVersion() string {
|
||||
return getNestedString(u.Object, "apiVersion")
|
||||
}
|
||||
|
||||
func (u *UnstructuredList) SetAPIVersion(version string) {
|
||||
u.setNestedField(version, "apiVersion")
|
||||
}
|
||||
|
||||
func (u *UnstructuredList) GetKind() string {
|
||||
return getNestedString(u.Object, "kind")
|
||||
}
|
||||
|
||||
func (u *UnstructuredList) SetKind(kind string) {
|
||||
u.setNestedField(kind, "kind")
|
||||
}
|
||||
|
||||
func (u *UnstructuredList) GetResourceVersion() string {
|
||||
return getNestedString(u.Object, "metadata", "resourceVersion")
|
||||
}
|
||||
|
||||
func (u *UnstructuredList) SetResourceVersion(version string) {
|
||||
u.setNestedField(version, "metadata", "resourceVersion")
|
||||
}
|
||||
|
||||
func (u *UnstructuredList) GetSelfLink() string {
|
||||
return getNestedString(u.Object, "metadata", "selfLink")
|
||||
}
|
||||
|
||||
func (u *UnstructuredList) SetSelfLink(selfLink string) {
|
||||
u.setNestedField(selfLink, "metadata", "selfLink")
|
||||
}
|
||||
|
||||
func (u *UnstructuredList) GetContinue() string {
|
||||
return getNestedString(u.Object, "metadata", "continue")
|
||||
}
|
||||
|
||||
func (u *UnstructuredList) SetContinue(c string) {
|
||||
u.setNestedField(c, "metadata", "continue")
|
||||
}
|
||||
|
||||
func (u *UnstructuredList) SetGroupVersionKind(gvk schema.GroupVersionKind) {
|
||||
u.SetAPIVersion(gvk.GroupVersion().String())
|
||||
u.SetKind(gvk.Kind)
|
||||
}
|
||||
|
||||
func (u *UnstructuredList) GroupVersionKind() schema.GroupVersionKind {
|
||||
gv, err := schema.ParseGroupVersion(u.GetAPIVersion())
|
||||
if err != nil {
|
||||
return schema.GroupVersionKind{}
|
||||
}
|
||||
gvk := gv.WithKind(u.GetKind())
|
||||
return gvk
|
||||
}
|
||||
|
||||
// UnstructuredJSONScheme is capable of converting JSON data into the Unstructured
|
||||
// type, which can be used for generic access to objects without a predefined scheme.
|
||||
// TODO: move into serializer/json.
|
||||
var UnstructuredJSONScheme runtime.Codec = unstructuredJSONScheme{}
|
||||
|
||||
type unstructuredJSONScheme struct{}
|
||||
|
||||
func (s unstructuredJSONScheme) Decode(data []byte, _ *schema.GroupVersionKind, obj runtime.Object) (runtime.Object, *schema.GroupVersionKind, error) {
|
||||
var err error
|
||||
if obj != nil {
|
||||
err = s.decodeInto(data, obj)
|
||||
} else {
|
||||
obj, err = s.decode(data)
|
||||
}
|
||||
|
||||
if err != nil {
|
||||
return nil, nil, err
|
||||
}
|
||||
|
||||
gvk := obj.GetObjectKind().GroupVersionKind()
|
||||
if len(gvk.Kind) == 0 {
|
||||
return nil, &gvk, runtime.NewMissingKindErr(string(data))
|
||||
}
|
||||
|
||||
return obj, &gvk, nil
|
||||
}
|
||||
|
||||
func (unstructuredJSONScheme) Encode(obj runtime.Object, w io.Writer) error {
|
||||
switch t := obj.(type) {
|
||||
case *Unstructured:
|
||||
return json.NewEncoder(w).Encode(t.Object)
|
||||
case *UnstructuredList:
|
||||
items := make([]map[string]interface{}, 0, len(t.Items))
|
||||
for _, i := range t.Items {
|
||||
items = append(items, i.Object)
|
||||
}
|
||||
listObj := make(map[string]interface{}, len(t.Object)+1)
|
||||
for k, v := range t.Object { // Make a shallow copy
|
||||
listObj[k] = v
|
||||
}
|
||||
listObj["items"] = items
|
||||
return json.NewEncoder(w).Encode(listObj)
|
||||
case *runtime.Unknown:
|
||||
// TODO: Unstructured needs to deal with ContentType.
|
||||
_, err := w.Write(t.Raw)
|
||||
return err
|
||||
default:
|
||||
return json.NewEncoder(w).Encode(t)
|
||||
}
|
||||
}
|
||||
|
||||
func (s unstructuredJSONScheme) decode(data []byte) (runtime.Object, error) {
|
||||
type detector struct {
|
||||
Items gojson.RawMessage
|
||||
}
|
||||
var det detector
|
||||
if err := json.Unmarshal(data, &det); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
if det.Items != nil {
|
||||
list := &UnstructuredList{}
|
||||
err := s.decodeToList(data, list)
|
||||
return list, err
|
||||
}
|
||||
|
||||
// No Items field, so it wasn't a list.
|
||||
unstruct := &Unstructured{}
|
||||
err := s.decodeToUnstructured(data, unstruct)
|
||||
return unstruct, err
|
||||
}
|
||||
|
||||
func (s unstructuredJSONScheme) decodeInto(data []byte, obj runtime.Object) error {
|
||||
switch x := obj.(type) {
|
||||
case *Unstructured:
|
||||
return s.decodeToUnstructured(data, x)
|
||||
case *UnstructuredList:
|
||||
return s.decodeToList(data, x)
|
||||
case *runtime.VersionedObjects:
|
||||
o, err := s.decode(data)
|
||||
if err == nil {
|
||||
x.Objects = []runtime.Object{o}
|
||||
}
|
||||
return err
|
||||
default:
|
||||
return json.Unmarshal(data, x)
|
||||
}
|
||||
}
|
||||
|
||||
func (unstructuredJSONScheme) decodeToUnstructured(data []byte, unstruct *Unstructured) error {
|
||||
m := make(map[string]interface{})
|
||||
if err := json.Unmarshal(data, &m); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
unstruct.Object = m
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (s unstructuredJSONScheme) decodeToList(data []byte, list *UnstructuredList) error {
|
||||
type decodeList struct {
|
||||
Items []gojson.RawMessage
|
||||
}
|
||||
|
||||
var dList decodeList
|
||||
if err := json.Unmarshal(data, &dList); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
if err := json.Unmarshal(data, &list.Object); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// For typed lists, e.g., a PodList, API server doesn't set each item's
|
||||
// APIVersion and Kind. We need to set it.
|
||||
listAPIVersion := list.GetAPIVersion()
|
||||
listKind := list.GetKind()
|
||||
itemKind := strings.TrimSuffix(listKind, "List")
|
||||
|
||||
delete(list.Object, "items")
|
||||
list.Items = nil
|
||||
for _, i := range dList.Items {
|
||||
unstruct := &Unstructured{}
|
||||
if err := s.decodeToUnstructured([]byte(i), unstruct); err != nil {
|
||||
return err
|
||||
}
|
||||
// This is hacky. Set the item's Kind and APIVersion to those inferred
|
||||
// from the List.
|
||||
if len(unstruct.GetKind()) == 0 && len(unstruct.GetAPIVersion()) == 0 {
|
||||
unstruct.SetKind(itemKind)
|
||||
unstruct.SetAPIVersion(listAPIVersion)
|
||||
}
|
||||
list.Items = append(list.Items, *unstruct)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// UnstructuredObjectConverter is an ObjectConverter for use with
|
||||
// Unstructured objects. Since it has no schema or type information,
|
||||
// it will only succeed for no-op conversions. This is provided as a
|
||||
// sane implementation for APIs that require an object converter.
|
||||
type UnstructuredObjectConverter struct{}
|
||||
|
||||
func (UnstructuredObjectConverter) Convert(in, out, context interface{}) error {
|
||||
unstructIn, ok := in.(*Unstructured)
|
||||
if !ok {
|
||||
return fmt.Errorf("input type %T in not valid for unstructured conversion", in)
|
||||
}
|
||||
|
||||
unstructOut, ok := out.(*Unstructured)
|
||||
if !ok {
|
||||
return fmt.Errorf("output type %T in not valid for unstructured conversion", out)
|
||||
}
|
||||
|
||||
// maybe deep copy the map? It is documented in the
|
||||
// ObjectConverter interface that this function is not
|
||||
// guaranteeed to not mutate the input. Or maybe set the input
|
||||
// object to nil.
|
||||
unstructOut.Object = unstructIn.Object
|
||||
return nil
|
||||
}
|
||||
|
||||
func (UnstructuredObjectConverter) ConvertToVersion(in runtime.Object, target runtime.GroupVersioner) (runtime.Object, error) {
|
||||
if kind := in.GetObjectKind().GroupVersionKind(); !kind.Empty() {
|
||||
gvk, ok := target.KindForGroupVersionKinds([]schema.GroupVersionKind{kind})
|
||||
if !ok {
|
||||
// TODO: should this be a typed error?
|
||||
return nil, fmt.Errorf("%v is unstructured and is not suitable for converting to %q", kind, target)
|
||||
}
|
||||
in.GetObjectKind().SetGroupVersionKind(gvk)
|
||||
}
|
||||
return in, nil
|
||||
}
|
||||
|
||||
func (UnstructuredObjectConverter) ConvertFieldLabel(version, kind, label, value string) (string, string, error) {
|
||||
return "", "", errors.New("unstructured cannot convert field labels")
|
||||
}
|
||||
|
||||
@@ -0,0 +1,165 @@
|
||||
/*
|
||||
Copyright 2015 The Kubernetes 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 unstructured
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
|
||||
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
||||
"k8s.io/apimachinery/pkg/conversion/unstructured"
|
||||
"k8s.io/apimachinery/pkg/runtime"
|
||||
"k8s.io/apimachinery/pkg/runtime/schema"
|
||||
)
|
||||
|
||||
var _ runtime.Unstructured = &UnstructuredList{}
|
||||
var _ metav1.ListInterface = &UnstructuredList{}
|
||||
|
||||
// UnstructuredList allows lists that do not have Golang structs
|
||||
// registered to be manipulated generically. This can be used to deal
|
||||
// with the API lists from a plug-in.
|
||||
// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
|
||||
// +k8s:deepcopy-gen=true
|
||||
type UnstructuredList struct {
|
||||
Object map[string]interface{}
|
||||
|
||||
// Items is a list of unstructured objects.
|
||||
Items []Unstructured `json:"items"`
|
||||
}
|
||||
|
||||
func (u *UnstructuredList) GetObjectKind() schema.ObjectKind { return u }
|
||||
|
||||
func (u *UnstructuredList) IsUnstructuredObject() {}
|
||||
|
||||
func (u *UnstructuredList) IsList() bool { return true }
|
||||
|
||||
func (u *UnstructuredList) EachListItem(fn func(runtime.Object) error) error {
|
||||
for i := range u.Items {
|
||||
if err := fn(&u.Items[i]); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// UnstructuredContent returns a map contain an overlay of the Items field onto
|
||||
// the Object field. Items always overwrites overlay. Changing "items" in the
|
||||
// returned object will affect items in the underlying Items field, but changing
|
||||
// the "items" slice itself will have no effect.
|
||||
// TODO: expose SetUnstructuredContent on runtime.Unstructured that allows
|
||||
// items to be changed.
|
||||
func (u *UnstructuredList) UnstructuredContent() map[string]interface{} {
|
||||
out := u.Object
|
||||
if out == nil {
|
||||
out = make(map[string]interface{})
|
||||
}
|
||||
items := make([]interface{}, len(u.Items))
|
||||
for i, item := range u.Items {
|
||||
items[i] = item.Object
|
||||
}
|
||||
out["items"] = items
|
||||
return out
|
||||
}
|
||||
|
||||
func (u *UnstructuredList) DeepCopy() *UnstructuredList {
|
||||
if u == nil {
|
||||
return nil
|
||||
}
|
||||
out := new(UnstructuredList)
|
||||
*out = *u
|
||||
out.Object = unstructured.DeepCopyJSON(u.Object)
|
||||
out.Items = make([]Unstructured, len(u.Items))
|
||||
for i := range u.Items {
|
||||
u.Items[i].DeepCopyInto(&out.Items[i])
|
||||
}
|
||||
return out
|
||||
}
|
||||
|
||||
// MarshalJSON ensures that the unstructured list object produces proper
|
||||
// JSON when passed to Go's standard JSON library.
|
||||
func (u *UnstructuredList) MarshalJSON() ([]byte, error) {
|
||||
var buf bytes.Buffer
|
||||
err := UnstructuredJSONScheme.Encode(u, &buf)
|
||||
return buf.Bytes(), err
|
||||
}
|
||||
|
||||
// UnmarshalJSON ensures that the unstructured list object properly
|
||||
// decodes JSON when passed to Go's standard JSON library.
|
||||
func (u *UnstructuredList) UnmarshalJSON(b []byte) error {
|
||||
_, _, err := UnstructuredJSONScheme.Decode(b, nil, u)
|
||||
return err
|
||||
}
|
||||
|
||||
func (u *UnstructuredList) GetAPIVersion() string {
|
||||
return getNestedString(u.Object, "apiVersion")
|
||||
}
|
||||
|
||||
func (u *UnstructuredList) SetAPIVersion(version string) {
|
||||
u.setNestedField(version, "apiVersion")
|
||||
}
|
||||
|
||||
func (u *UnstructuredList) GetKind() string {
|
||||
return getNestedString(u.Object, "kind")
|
||||
}
|
||||
|
||||
func (u *UnstructuredList) SetKind(kind string) {
|
||||
u.setNestedField(kind, "kind")
|
||||
}
|
||||
|
||||
func (u *UnstructuredList) GetResourceVersion() string {
|
||||
return getNestedString(u.Object, "metadata", "resourceVersion")
|
||||
}
|
||||
|
||||
func (u *UnstructuredList) SetResourceVersion(version string) {
|
||||
u.setNestedField(version, "metadata", "resourceVersion")
|
||||
}
|
||||
|
||||
func (u *UnstructuredList) GetSelfLink() string {
|
||||
return getNestedString(u.Object, "metadata", "selfLink")
|
||||
}
|
||||
|
||||
func (u *UnstructuredList) SetSelfLink(selfLink string) {
|
||||
u.setNestedField(selfLink, "metadata", "selfLink")
|
||||
}
|
||||
|
||||
func (u *UnstructuredList) GetContinue() string {
|
||||
return getNestedString(u.Object, "metadata", "continue")
|
||||
}
|
||||
|
||||
func (u *UnstructuredList) SetContinue(c string) {
|
||||
u.setNestedField(c, "metadata", "continue")
|
||||
}
|
||||
|
||||
func (u *UnstructuredList) SetGroupVersionKind(gvk schema.GroupVersionKind) {
|
||||
u.SetAPIVersion(gvk.GroupVersion().String())
|
||||
u.SetKind(gvk.Kind)
|
||||
}
|
||||
|
||||
func (u *UnstructuredList) GroupVersionKind() schema.GroupVersionKind {
|
||||
gv, err := schema.ParseGroupVersion(u.GetAPIVersion())
|
||||
if err != nil {
|
||||
return schema.GroupVersionKind{}
|
||||
}
|
||||
gvk := gv.WithKind(u.GetKind())
|
||||
return gvk
|
||||
}
|
||||
|
||||
func (u *UnstructuredList) setNestedField(value interface{}, fields ...string) {
|
||||
if u.Object == nil {
|
||||
u.Object = make(map[string]interface{})
|
||||
}
|
||||
setNestedField(u.Object, value, fields...)
|
||||
}
|
||||
@@ -17,31 +17,9 @@ limitations under the License.
|
||||
package unstructured
|
||||
|
||||
import (
|
||||
"io/ioutil"
|
||||
"sync"
|
||||
"testing"
|
||||
|
||||
"github.com/stretchr/testify/assert"
|
||||
)
|
||||
|
||||
// TestCodecOfUnstructuredList tests that there are no data races in Encode().
|
||||
// i.e. that it does not mutate the object being encoded.
|
||||
func TestCodecOfUnstructuredList(t *testing.T) {
|
||||
var wg sync.WaitGroup
|
||||
concurrency := 10
|
||||
list := UnstructuredList{
|
||||
Object: map[string]interface{}{},
|
||||
}
|
||||
wg.Add(concurrency)
|
||||
for i := 0; i < concurrency; i++ {
|
||||
go func() {
|
||||
defer wg.Done()
|
||||
assert.NoError(t, UnstructuredJSONScheme.Encode(&list, ioutil.Discard))
|
||||
}()
|
||||
}
|
||||
wg.Wait()
|
||||
}
|
||||
|
||||
func TestUnstructuredList(t *testing.T) {
|
||||
list := &UnstructuredList{
|
||||
Object: map[string]interface{}{"kind": "List", "apiVersion": "v1"},
|
||||
Reference in New Issue
Block a user