Dependencies for the affinity router and the
affinity routing daemon.
Change-Id: Icda72c3594ef7f8f0bc0c33dc03087a4c25529ca
diff --git a/vendor/k8s.io/apimachinery/pkg/api/meta/lazy.go b/vendor/k8s.io/apimachinery/pkg/api/meta/lazy.go
new file mode 100644
index 0000000..431a0a6
--- /dev/null
+++ b/vendor/k8s.io/apimachinery/pkg/api/meta/lazy.go
@@ -0,0 +1,104 @@
+/*
+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.
+*/
+
+package meta
+
+import (
+ "sync"
+
+ "k8s.io/apimachinery/pkg/runtime/schema"
+)
+
+// lazyObject defers loading the mapper and typer until necessary.
+type lazyObject struct {
+ loader func() (RESTMapper, error)
+
+ lock sync.Mutex
+ loaded bool
+ err error
+ mapper RESTMapper
+}
+
+// NewLazyObjectLoader handles unrecoverable errors when creating a RESTMapper / ObjectTyper by
+// returning those initialization errors when the interface methods are invoked. This defers the
+// initialization and any server calls until a client actually needs to perform the action.
+func NewLazyRESTMapperLoader(fn func() (RESTMapper, error)) RESTMapper {
+ obj := &lazyObject{loader: fn}
+ return obj
+}
+
+// init lazily loads the mapper and typer, returning an error if initialization has failed.
+func (o *lazyObject) init() error {
+ o.lock.Lock()
+ defer o.lock.Unlock()
+ if o.loaded {
+ return o.err
+ }
+ o.mapper, o.err = o.loader()
+ o.loaded = true
+ return o.err
+}
+
+var _ RESTMapper = &lazyObject{}
+
+func (o *lazyObject) KindFor(resource schema.GroupVersionResource) (schema.GroupVersionKind, error) {
+ if err := o.init(); err != nil {
+ return schema.GroupVersionKind{}, err
+ }
+ return o.mapper.KindFor(resource)
+}
+
+func (o *lazyObject) KindsFor(resource schema.GroupVersionResource) ([]schema.GroupVersionKind, error) {
+ if err := o.init(); err != nil {
+ return []schema.GroupVersionKind{}, err
+ }
+ return o.mapper.KindsFor(resource)
+}
+
+func (o *lazyObject) ResourceFor(input schema.GroupVersionResource) (schema.GroupVersionResource, error) {
+ if err := o.init(); err != nil {
+ return schema.GroupVersionResource{}, err
+ }
+ return o.mapper.ResourceFor(input)
+}
+
+func (o *lazyObject) ResourcesFor(input schema.GroupVersionResource) ([]schema.GroupVersionResource, error) {
+ if err := o.init(); err != nil {
+ return []schema.GroupVersionResource{}, err
+ }
+ return o.mapper.ResourcesFor(input)
+}
+
+func (o *lazyObject) RESTMapping(gk schema.GroupKind, versions ...string) (*RESTMapping, error) {
+ if err := o.init(); err != nil {
+ return nil, err
+ }
+ return o.mapper.RESTMapping(gk, versions...)
+}
+
+func (o *lazyObject) RESTMappings(gk schema.GroupKind, versions ...string) ([]*RESTMapping, error) {
+ if err := o.init(); err != nil {
+ return nil, err
+ }
+ return o.mapper.RESTMappings(gk, versions...)
+}
+
+func (o *lazyObject) ResourceSingularizer(resource string) (singular string, err error) {
+ if err := o.init(); err != nil {
+ return "", err
+ }
+ return o.mapper.ResourceSingularizer(resource)
+}