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etcd.go
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etcd.go
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package etcd
import (
"time"
kapi "k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/api/rest"
"k8s.io/kubernetes/pkg/api/unversioned"
"k8s.io/kubernetes/pkg/fields"
"k8s.io/kubernetes/pkg/labels"
"k8s.io/kubernetes/pkg/registry/generic"
etcdgeneric "k8s.io/kubernetes/pkg/registry/generic/etcd"
"k8s.io/kubernetes/pkg/runtime"
"k8s.io/kubernetes/pkg/storage"
"github.com/openshift/origin/pkg/oauth/api"
"github.com/openshift/origin/pkg/oauth/registry/oauthaccesstoken"
"github.com/openshift/origin/pkg/util"
"github.com/openshift/origin/pkg/util/observe"
)
// rest implements a RESTStorage for access tokens against etcd
type REST struct {
// Cannot inline because we don't want the Update function
store *etcdgeneric.Etcd
}
const EtcdPrefix = "/oauth/accesstokens"
// NewREST returns a RESTStorage object that will work against access tokens
func NewREST(s storage.Interface, backends ...storage.Interface) *REST {
store := &etcdgeneric.Etcd{
NewFunc: func() runtime.Object { return &api.OAuthAccessToken{} },
NewListFunc: func() runtime.Object { return &api.OAuthAccessTokenList{} },
KeyRootFunc: func(ctx kapi.Context) string {
return EtcdPrefix
},
KeyFunc: func(ctx kapi.Context, name string) (string, error) {
return util.NoNamespaceKeyFunc(ctx, EtcdPrefix, name)
},
ObjectNameFunc: func(obj runtime.Object) (string, error) {
return obj.(*api.OAuthAccessToken).Name, nil
},
PredicateFunc: func(label labels.Selector, field fields.Selector) generic.Matcher {
return oauthaccesstoken.Matcher(label, field)
},
TTLFunc: func(obj runtime.Object, existing uint64, update bool) (uint64, error) {
token := obj.(*api.OAuthAccessToken)
expires := uint64(token.ExpiresIn)
return expires, nil
},
EndpointName: "oauthaccesstokens",
Storage: s,
}
store.CreateStrategy = oauthaccesstoken.Strategy
if len(backends) > 0 {
// Build identical stores that talk to a single etcd, so we can verify the token is distributed after creation
watchers := []rest.Watcher{}
for i := range backends {
watcher := *store
watcher.Storage = backends[i]
watchers = append(watchers, &watcher)
}
// Observe the cluster for the particular resource version, requiring at least one backend to succeed
observer := observe.NewClusterObserver(s.Versioner(), watchers, 1)
// After creation, wait for the new token to propagate
store.AfterCreate = func(obj runtime.Object) error {
return observer.ObserveResourceVersion(obj.(*api.OAuthAccessToken).ResourceVersion, 5*time.Second)
}
}
return &REST{store}
}
func (r *REST) New() runtime.Object {
return r.store.NewFunc()
}
func (r *REST) NewList() runtime.Object {
return r.store.NewListFunc()
}
func (r *REST) Get(ctx kapi.Context, name string) (runtime.Object, error) {
return r.store.Get(ctx, name)
}
func (r *REST) List(ctx kapi.Context, options *unversioned.ListOptions) (runtime.Object, error) {
return r.store.List(ctx, options)
}
func (r *REST) Create(ctx kapi.Context, obj runtime.Object) (runtime.Object, error) {
return r.store.Create(ctx, obj)
}
func (r *REST) Delete(ctx kapi.Context, name string, options *kapi.DeleteOptions) (runtime.Object, error) {
return r.store.Delete(ctx, name, options)
}