Dependencies for the affinity router and the
affinity routing daemon.
Change-Id: Icda72c3594ef7f8f0bc0c33dc03087a4c25529ca
diff --git a/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/unstructured/helpers.go b/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/unstructured/helpers.go
new file mode 100644
index 0000000..75ac693
--- /dev/null
+++ b/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/unstructured/helpers.go
@@ -0,0 +1,454 @@
+/*
+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 (
+ gojson "encoding/json"
+ "fmt"
+ "io"
+ "strings"
+
+ metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+ "k8s.io/apimachinery/pkg/runtime"
+ "k8s.io/apimachinery/pkg/runtime/schema"
+ "k8s.io/apimachinery/pkg/types"
+ "k8s.io/apimachinery/pkg/util/json"
+)
+
+// NestedFieldCopy returns a deep copy of the value of a nested field.
+// Returns false if the value is missing.
+// No error is returned for a nil field.
+func NestedFieldCopy(obj map[string]interface{}, fields ...string) (interface{}, bool, error) {
+ val, found, err := NestedFieldNoCopy(obj, fields...)
+ if !found || err != nil {
+ return nil, found, err
+ }
+ return runtime.DeepCopyJSONValue(val), true, nil
+}
+
+// NestedFieldNoCopy returns a reference to a nested field.
+// Returns false if value is not found and an error if unable
+// to traverse obj.
+func NestedFieldNoCopy(obj map[string]interface{}, fields ...string) (interface{}, bool, error) {
+ var val interface{} = obj
+
+ for i, field := range fields {
+ if val == nil {
+ return nil, false, nil
+ }
+ if m, ok := val.(map[string]interface{}); ok {
+ val, ok = m[field]
+ if !ok {
+ return nil, false, nil
+ }
+ } else {
+ return nil, false, fmt.Errorf("%v accessor error: %v is of the type %T, expected map[string]interface{}", jsonPath(fields[:i+1]), val, val)
+ }
+ }
+ return val, true, nil
+}
+
+// NestedString returns the string value of a nested field.
+// Returns false if value is not found and an error if not a string.
+func NestedString(obj map[string]interface{}, fields ...string) (string, bool, error) {
+ val, found, err := NestedFieldNoCopy(obj, fields...)
+ if !found || err != nil {
+ return "", found, err
+ }
+ s, ok := val.(string)
+ if !ok {
+ return "", false, fmt.Errorf("%v accessor error: %v is of the type %T, expected string", jsonPath(fields), val, val)
+ }
+ return s, true, nil
+}
+
+// NestedBool returns the bool value of a nested field.
+// Returns false if value is not found and an error if not a bool.
+func NestedBool(obj map[string]interface{}, fields ...string) (bool, bool, error) {
+ val, found, err := NestedFieldNoCopy(obj, fields...)
+ if !found || err != nil {
+ return false, found, err
+ }
+ b, ok := val.(bool)
+ if !ok {
+ return false, false, fmt.Errorf("%v accessor error: %v is of the type %T, expected bool", jsonPath(fields), val, val)
+ }
+ return b, true, nil
+}
+
+// NestedFloat64 returns the float64 value of a nested field.
+// Returns false if value is not found and an error if not a float64.
+func NestedFloat64(obj map[string]interface{}, fields ...string) (float64, bool, error) {
+ val, found, err := NestedFieldNoCopy(obj, fields...)
+ if !found || err != nil {
+ return 0, found, err
+ }
+ f, ok := val.(float64)
+ if !ok {
+ return 0, false, fmt.Errorf("%v accessor error: %v is of the type %T, expected float64", jsonPath(fields), val, val)
+ }
+ return f, true, nil
+}
+
+// NestedInt64 returns the int64 value of a nested field.
+// Returns false if value is not found and an error if not an int64.
+func NestedInt64(obj map[string]interface{}, fields ...string) (int64, bool, error) {
+ val, found, err := NestedFieldNoCopy(obj, fields...)
+ if !found || err != nil {
+ return 0, found, err
+ }
+ i, ok := val.(int64)
+ if !ok {
+ return 0, false, fmt.Errorf("%v accessor error: %v is of the type %T, expected int64", jsonPath(fields), val, val)
+ }
+ return i, true, nil
+}
+
+// NestedStringSlice returns a copy of []string value of a nested field.
+// Returns false if value is not found and an error if not a []interface{} or contains non-string items in the slice.
+func NestedStringSlice(obj map[string]interface{}, fields ...string) ([]string, bool, error) {
+ val, found, err := NestedFieldNoCopy(obj, fields...)
+ if !found || err != nil {
+ return nil, found, err
+ }
+ m, ok := val.([]interface{})
+ if !ok {
+ return nil, false, fmt.Errorf("%v accessor error: %v is of the type %T, expected []interface{}", jsonPath(fields), val, val)
+ }
+ strSlice := make([]string, 0, len(m))
+ for _, v := range m {
+ if str, ok := v.(string); ok {
+ strSlice = append(strSlice, str)
+ } else {
+ return nil, false, fmt.Errorf("%v accessor error: contains non-string key in the slice: %v is of the type %T, expected string", jsonPath(fields), v, v)
+ }
+ }
+ return strSlice, true, nil
+}
+
+// NestedSlice returns a deep copy of []interface{} value of a nested field.
+// Returns false if value is not found and an error if not a []interface{}.
+func NestedSlice(obj map[string]interface{}, fields ...string) ([]interface{}, bool, error) {
+ val, found, err := NestedFieldNoCopy(obj, fields...)
+ if !found || err != nil {
+ return nil, found, err
+ }
+ _, ok := val.([]interface{})
+ if !ok {
+ return nil, false, fmt.Errorf("%v accessor error: %v is of the type %T, expected []interface{}", jsonPath(fields), val, val)
+ }
+ return runtime.DeepCopyJSONValue(val).([]interface{}), true, nil
+}
+
+// NestedStringMap returns a copy of map[string]string value of a nested field.
+// Returns false if value is not found and an error if not a map[string]interface{} or contains non-string values in the map.
+func NestedStringMap(obj map[string]interface{}, fields ...string) (map[string]string, bool, error) {
+ m, found, err := nestedMapNoCopy(obj, fields...)
+ if !found || err != nil {
+ return nil, found, err
+ }
+ strMap := make(map[string]string, len(m))
+ for k, v := range m {
+ if str, ok := v.(string); ok {
+ strMap[k] = str
+ } else {
+ return nil, false, fmt.Errorf("%v accessor error: contains non-string key in the map: %v is of the type %T, expected string", jsonPath(fields), v, v)
+ }
+ }
+ return strMap, true, nil
+}
+
+// NestedMap returns a deep copy of map[string]interface{} value of a nested field.
+// Returns false if value is not found and an error if not a map[string]interface{}.
+func NestedMap(obj map[string]interface{}, fields ...string) (map[string]interface{}, bool, error) {
+ m, found, err := nestedMapNoCopy(obj, fields...)
+ if !found || err != nil {
+ return nil, found, err
+ }
+ return runtime.DeepCopyJSON(m), true, nil
+}
+
+// nestedMapNoCopy returns a map[string]interface{} value of a nested field.
+// Returns false if value is not found and an error if not a map[string]interface{}.
+func nestedMapNoCopy(obj map[string]interface{}, fields ...string) (map[string]interface{}, bool, error) {
+ val, found, err := NestedFieldNoCopy(obj, fields...)
+ if !found || err != nil {
+ return nil, found, err
+ }
+ m, ok := val.(map[string]interface{})
+ if !ok {
+ return nil, false, fmt.Errorf("%v accessor error: %v is of the type %T, expected map[string]interface{}", jsonPath(fields), val, val)
+ }
+ return m, true, nil
+}
+
+// SetNestedField sets the value of a nested field to a deep copy of the value provided.
+// Returns an error if value cannot be set because one of the nesting levels is not a map[string]interface{}.
+func SetNestedField(obj map[string]interface{}, value interface{}, fields ...string) error {
+ return setNestedFieldNoCopy(obj, runtime.DeepCopyJSONValue(value), fields...)
+}
+
+func setNestedFieldNoCopy(obj map[string]interface{}, value interface{}, fields ...string) error {
+ m := obj
+
+ for i, field := range fields[:len(fields)-1] {
+ if val, ok := m[field]; ok {
+ if valMap, ok := val.(map[string]interface{}); ok {
+ m = valMap
+ } else {
+ return fmt.Errorf("value cannot be set because %v is not a map[string]interface{}", jsonPath(fields[:i+1]))
+ }
+ } else {
+ newVal := make(map[string]interface{})
+ m[field] = newVal
+ m = newVal
+ }
+ }
+ m[fields[len(fields)-1]] = value
+ return nil
+}
+
+// SetNestedStringSlice sets the string slice value of a nested field.
+// Returns an error if value cannot be set because one of the nesting levels is not a map[string]interface{}.
+func SetNestedStringSlice(obj map[string]interface{}, value []string, fields ...string) error {
+ m := make([]interface{}, 0, len(value)) // convert []string into []interface{}
+ for _, v := range value {
+ m = append(m, v)
+ }
+ return setNestedFieldNoCopy(obj, m, fields...)
+}
+
+// SetNestedSlice sets the slice value of a nested field.
+// Returns an error if value cannot be set because one of the nesting levels is not a map[string]interface{}.
+func SetNestedSlice(obj map[string]interface{}, value []interface{}, fields ...string) error {
+ return SetNestedField(obj, value, fields...)
+}
+
+// SetNestedStringMap sets the map[string]string value of a nested field.
+// Returns an error if value cannot be set because one of the nesting levels is not a map[string]interface{}.
+func SetNestedStringMap(obj map[string]interface{}, value map[string]string, fields ...string) error {
+ m := make(map[string]interface{}, len(value)) // convert map[string]string into map[string]interface{}
+ for k, v := range value {
+ m[k] = v
+ }
+ return setNestedFieldNoCopy(obj, m, fields...)
+}
+
+// SetNestedMap sets the map[string]interface{} value of a nested field.
+// Returns an error if value cannot be set because one of the nesting levels is not a map[string]interface{}.
+func SetNestedMap(obj map[string]interface{}, value map[string]interface{}, fields ...string) error {
+ return SetNestedField(obj, value, fields...)
+}
+
+// RemoveNestedField removes the nested field from the obj.
+func RemoveNestedField(obj map[string]interface{}, fields ...string) {
+ m := obj
+ for _, field := range fields[:len(fields)-1] {
+ if x, ok := m[field].(map[string]interface{}); ok {
+ m = x
+ } else {
+ return
+ }
+ }
+ delete(m, fields[len(fields)-1])
+}
+
+func getNestedString(obj map[string]interface{}, fields ...string) string {
+ val, found, err := NestedString(obj, fields...)
+ if !found || err != nil {
+ return ""
+ }
+ return val
+}
+
+func jsonPath(fields []string) string {
+ return "." + strings.Join(fields, ".")
+}
+
+func extractOwnerReference(v map[string]interface{}) metav1.OwnerReference {
+ // though this field is a *bool, but when decoded from JSON, it's
+ // unmarshalled as bool.
+ var controllerPtr *bool
+ if controller, found, err := NestedBool(v, "controller"); err == nil && found {
+ controllerPtr = &controller
+ }
+ var blockOwnerDeletionPtr *bool
+ if blockOwnerDeletion, found, err := NestedBool(v, "blockOwnerDeletion"); err == nil && found {
+ blockOwnerDeletionPtr = &blockOwnerDeletion
+ }
+ 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,
+ }
+}
+
+// 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([]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 = make([]Unstructured, 0, len(dList.Items))
+ 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
+}
+
+type JSONFallbackEncoder struct {
+ runtime.Encoder
+}
+
+func (c JSONFallbackEncoder) Encode(obj runtime.Object, w io.Writer) error {
+ err := c.Encoder.Encode(obj, w)
+ if runtime.IsNotRegisteredError(err) {
+ switch obj.(type) {
+ case *Unstructured, *UnstructuredList:
+ return UnstructuredJSONScheme.Encode(obj, w)
+ }
+ }
+ return err
+}