Dependencies for the affinity router and the
affinity routing daemon.
Change-Id: Icda72c3594ef7f8f0bc0c33dc03087a4c25529ca
diff --git a/vendor/k8s.io/apimachinery/pkg/conversion/queryparams/convert.go b/vendor/k8s.io/apimachinery/pkg/conversion/queryparams/convert.go
new file mode 100644
index 0000000..b3804aa
--- /dev/null
+++ b/vendor/k8s.io/apimachinery/pkg/conversion/queryparams/convert.go
@@ -0,0 +1,198 @@
+/*
+Copyright 2014 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 queryparams
+
+import (
+ "fmt"
+ "net/url"
+ "reflect"
+ "strings"
+)
+
+// Marshaler converts an object to a query parameter string representation
+type Marshaler interface {
+ MarshalQueryParameter() (string, error)
+}
+
+// Unmarshaler converts a string representation to an object
+type Unmarshaler interface {
+ UnmarshalQueryParameter(string) error
+}
+
+func jsonTag(field reflect.StructField) (string, bool) {
+ structTag := field.Tag.Get("json")
+ if len(structTag) == 0 {
+ return "", false
+ }
+ parts := strings.Split(structTag, ",")
+ tag := parts[0]
+ if tag == "-" {
+ tag = ""
+ }
+ omitempty := false
+ parts = parts[1:]
+ for _, part := range parts {
+ if part == "omitempty" {
+ omitempty = true
+ break
+ }
+ }
+ return tag, omitempty
+}
+
+func formatValue(value interface{}) string {
+ return fmt.Sprintf("%v", value)
+}
+
+func isPointerKind(kind reflect.Kind) bool {
+ return kind == reflect.Ptr
+}
+
+func isStructKind(kind reflect.Kind) bool {
+ return kind == reflect.Struct
+}
+
+func isValueKind(kind reflect.Kind) bool {
+ switch kind {
+ case reflect.String, reflect.Bool, reflect.Int, reflect.Int8, reflect.Int16,
+ reflect.Int32, reflect.Int64, reflect.Uint, reflect.Uint8,
+ reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Float32,
+ reflect.Float64, reflect.Complex64, reflect.Complex128:
+ return true
+ default:
+ return false
+ }
+}
+
+func zeroValue(value reflect.Value) bool {
+ return reflect.DeepEqual(reflect.Zero(value.Type()).Interface(), value.Interface())
+}
+
+func customMarshalValue(value reflect.Value) (reflect.Value, bool) {
+ // Return unless we implement a custom query marshaler
+ if !value.CanInterface() {
+ return reflect.Value{}, false
+ }
+
+ marshaler, ok := value.Interface().(Marshaler)
+ if !ok {
+ if !isPointerKind(value.Kind()) && value.CanAddr() {
+ marshaler, ok = value.Addr().Interface().(Marshaler)
+ if !ok {
+ return reflect.Value{}, false
+ }
+ } else {
+ return reflect.Value{}, false
+ }
+ }
+
+ // Don't invoke functions on nil pointers
+ // If the type implements MarshalQueryParameter, AND the tag is not omitempty, AND the value is a nil pointer, "" seems like a reasonable response
+ if isPointerKind(value.Kind()) && zeroValue(value) {
+ return reflect.ValueOf(""), true
+ }
+
+ // Get the custom marshalled value
+ v, err := marshaler.MarshalQueryParameter()
+ if err != nil {
+ return reflect.Value{}, false
+ }
+ return reflect.ValueOf(v), true
+}
+
+func addParam(values url.Values, tag string, omitempty bool, value reflect.Value) {
+ if omitempty && zeroValue(value) {
+ return
+ }
+ val := ""
+ iValue := fmt.Sprintf("%v", value.Interface())
+
+ if iValue != "<nil>" {
+ val = iValue
+ }
+ values.Add(tag, val)
+}
+
+func addListOfParams(values url.Values, tag string, omitempty bool, list reflect.Value) {
+ for i := 0; i < list.Len(); i++ {
+ addParam(values, tag, omitempty, list.Index(i))
+ }
+}
+
+// Convert takes an object and converts it to a url.Values object using JSON tags as
+// parameter names. Only top-level simple values, arrays, and slices are serialized.
+// Embedded structs, maps, etc. will not be serialized.
+func Convert(obj interface{}) (url.Values, error) {
+ result := url.Values{}
+ if obj == nil {
+ return result, nil
+ }
+ var sv reflect.Value
+ switch reflect.TypeOf(obj).Kind() {
+ case reflect.Ptr, reflect.Interface:
+ sv = reflect.ValueOf(obj).Elem()
+ default:
+ return nil, fmt.Errorf("expecting a pointer or interface")
+ }
+ st := sv.Type()
+ if !isStructKind(st.Kind()) {
+ return nil, fmt.Errorf("expecting a pointer to a struct")
+ }
+
+ // Check all object fields
+ convertStruct(result, st, sv)
+
+ return result, nil
+}
+
+func convertStruct(result url.Values, st reflect.Type, sv reflect.Value) {
+ for i := 0; i < st.NumField(); i++ {
+ field := sv.Field(i)
+ tag, omitempty := jsonTag(st.Field(i))
+ if len(tag) == 0 {
+ continue
+ }
+ ft := field.Type()
+
+ kind := ft.Kind()
+ if isPointerKind(kind) {
+ ft = ft.Elem()
+ kind = ft.Kind()
+ if !field.IsNil() {
+ field = reflect.Indirect(field)
+ // If the field is non-nil, it should be added to params
+ // and the omitempty should be overwite to false
+ omitempty = false
+ }
+ }
+
+ switch {
+ case isValueKind(kind):
+ addParam(result, tag, omitempty, field)
+ case kind == reflect.Array || kind == reflect.Slice:
+ if isValueKind(ft.Elem().Kind()) {
+ addListOfParams(result, tag, omitempty, field)
+ }
+ case isStructKind(kind) && !(zeroValue(field) && omitempty):
+ if marshalValue, ok := customMarshalValue(field); ok {
+ addParam(result, tag, omitempty, marshalValue)
+ } else {
+ convertStruct(result, ft, field)
+ }
+ }
+ }
+}