func (o objects) Kind(kind, name string) (runtime.Object, error) {
empty, _ := o.scheme.New("", kind)
nilValue := reflect.Zero(reflect.TypeOf(empty)).Interface().(runtime.Object)
arr, ok := o.types[kind]
if !ok {
if strings.HasSuffix(kind, "List") {
itemKind := kind[:len(kind)-4]
arr, ok := o.types[itemKind]
if !ok {
return empty, nil
}
out, err := o.scheme.New("", kind)
if err != nil {
return nilValue, err
}
if err := runtime.SetList(out, arr); err != nil {
return nilValue, err
}
if out, err = o.scheme.Copy(out); err != nil {
return nilValue, err
}
return out, nil
}
return nilValue, errors.NewNotFound(kind, name)
}
index := o.last[kind]
if index >= len(arr) {
index = len(arr) - 1
}
if index < 0 {
return nilValue, errors.NewNotFound(kind, name)
}
out, err := o.scheme.Copy(arr[index])
if err != nil {
return nilValue, err
}
o.last[kind] = index + 1
if status, ok := out.(*api.Status); ok {
if status.Details != nil {
status.Details.Kind = kind
}
if status.Status != api.StatusSuccess {
return nilValue, &errors.StatusError{*status}
}
}
return out, nil
}
func (c *mockBinderClient) GetPersistentVolumeClaim(namespace, name string) (*api.PersistentVolumeClaim, error) {
if c.claim != nil {
return c.claim, nil
} else {
return nil, errors.NewNotFound("persistentVolume", name)
}
}
// InterpretDeleteError converts a generic etcd error on a delete
// operation into the appropriate API error.
func InterpretDeleteError(err error, kind, name string) error {
switch {
case tools.IsEtcdNotFound(err):
return errors.NewNotFound(kind, name)
default:
return err
}
}
func (r *MinionRegistry) GetMinion(ctx api.Context, minionID string) (*api.Node, error) {
r.Lock()
defer r.Unlock()
if r.Err != nil {
return nil, r.Err
}
for _, node := range r.Minions.Items {
if node.Name == minionID {
return &node, nil
}
}
return nil, errors.NewNotFound("node", minionID)
}
func TestCheckGeneratedNameError(t *testing.T) {
expect := errors.NewNotFound("foo", "bar")
if err := CheckGeneratedNameError(Services, expect, &api.Pod{}); err != expect {
t.Errorf("NotFoundError should be ignored: %v", err)
}
expect = errors.NewAlreadyExists("foo", "bar")
if err := CheckGeneratedNameError(Services, expect, &api.Pod{}); err != expect {
t.Errorf("AlreadyExists should be returned when no GenerateName field: %v", err)
}
expect = errors.NewAlreadyExists("foo", "bar")
if err := CheckGeneratedNameError(Services, expect, &api.Pod{ObjectMeta: api.ObjectMeta{GenerateName: "foo"}}); err == nil || !errors.IsServerTimeout(err) {
t.Errorf("expected try again later error: %v", err)
}
}
func (e *EndpointRegistry) GetEndpoints(ctx api.Context, name string) (*api.Endpoints, error) {
// TODO: support namespaces in this mock
e.lock.Lock()
defer e.lock.Unlock()
if e.Err != nil {
return nil, e.Err
}
if e.Endpoints != nil {
for _, endpoint := range e.Endpoints.Items {
if endpoint.Name == name {
return &endpoint, nil
}
}
}
return nil, errors.NewNotFound("Endpoints", name)
}
func TestErrors(t *testing.T) {
o := NewObjects(api.Scheme, api.Scheme)
o.Add(&api.List{
Items: []runtime.Object{
// This first call to List will return this error
&(errors.NewNotFound("ServiceList", "").(*errors.StatusError).ErrStatus),
// The second call to List will return this error
&(errors.NewForbidden("ServiceList", "", nil).(*errors.StatusError).ErrStatus),
},
})
client := &Fake{ReactFn: ObjectReaction(o, latest.RESTMapper)}
_, err := client.Services("test").List(labels.Everything())
if !errors.IsNotFound(err) {
t.Fatalf("unexpected error: %v", err)
}
t.Logf("error: %#v", err.(*errors.StatusError).Status())
_, err = client.Services("test").List(labels.Everything())
if !errors.IsForbidden(err) {
t.Fatalf("unexpected error: %v", err)
}
}
func TestErrorsToAPIStatus(t *testing.T) {
cases := map[error]api.Status{
errors.NewNotFound("foo", "bar"): {
Status: api.StatusFailure,
Code: http.StatusNotFound,
Reason: api.StatusReasonNotFound,
Message: "foo \"bar\" not found",
Details: &api.StatusDetails{
Kind: "foo",
Name: "bar",
},
},
errors.NewAlreadyExists("foo", "bar"): {
Status: api.StatusFailure,
Code: http.StatusConflict,
Reason: "AlreadyExists",
Message: "foo \"bar\" already exists",
Details: &api.StatusDetails{
Kind: "foo",
Name: "bar",
},
},
errors.NewConflict("foo", "bar", stderrs.New("failure")): {
Status: api.StatusFailure,
Code: http.StatusConflict,
Reason: "Conflict",
Message: "foo \"bar\" cannot be updated: failure",
Details: &api.StatusDetails{
Kind: "foo",
Name: "bar",
},
},
}
for k, v := range cases {
actual := errToAPIStatus(k)
if !reflect.DeepEqual(actual, &v) {
t.Errorf("%s: Expected %#v, Got %#v", k, v, actual)
}
}
}
// Update performs an atomic update and set of the object. Returns the result of the update
// or an error. If the registry allows create-on-update, the create flow will be executed.
// A bool is returned along with the object and any errors, to indicate object creation.
func (e *Etcd) Update(ctx api.Context, obj runtime.Object) (runtime.Object, bool, error) {
trace := util.NewTrace("Update " + reflect.TypeOf(obj).String())
defer trace.LogIfLong(time.Second)
name, err := e.ObjectNameFunc(obj)
if err != nil {
return nil, false, err
}
key, err := e.KeyFunc(ctx, name)
if err != nil {
return nil, false, err
}
// If AllowUnconditionalUpdate() is true and the object specified by the user does not have a resource version,
// then we populate it with the latest version.
// Else, we check that the version specified by the user matches the version of latest etcd object.
resourceVersion, err := e.Helper.Versioner.ObjectResourceVersion(obj)
if err != nil {
return nil, false, err
}
doUnconditionalUpdate := resourceVersion == 0 && e.UpdateStrategy.AllowUnconditionalUpdate()
// TODO: expose TTL
creating := false
out := e.NewFunc()
err = e.Helper.GuaranteedUpdate(key, out, true, func(existing runtime.Object, res tools.ResponseMeta) (runtime.Object, *uint64, error) {
version, err := e.Helper.Versioner.ObjectResourceVersion(existing)
if err != nil {
return nil, nil, err
}
if version == 0 {
if !e.UpdateStrategy.AllowCreateOnUpdate() {
return nil, nil, qingerr.NewNotFound(e.EndpointName, name)
}
creating = true
if err := rest.BeforeCreate(e.CreateStrategy, ctx, obj); err != nil {
return nil, nil, err
}
ttl, err := e.calculateTTL(obj, 0, false)
if err != nil {
return nil, nil, err
}
return obj, &ttl, nil
}
creating = false
if doUnconditionalUpdate {
// Update the object's resource version to match the latest etcd object's resource version.
err = e.Helper.Versioner.UpdateObject(obj, res.Expiration, res.ResourceVersion)
if err != nil {
return nil, nil, err
}
} else {
// Check if the object's resource version matches the latest resource version.
newVersion, err := e.Helper.Versioner.ObjectResourceVersion(obj)
if err != nil {
return nil, nil, err
}
if newVersion != version {
return nil, nil, qingerr.NewConflict(e.EndpointName, name, fmt.Errorf("the object has been modified; please apply your changes to the latest version and try again"))
}
}
if err := rest.BeforeUpdate(e.UpdateStrategy, ctx, obj, existing); err != nil {
return nil, nil, err
}
ttl, err := e.calculateTTL(obj, res.TTL, true)
if err != nil {
return nil, nil, err
}
if int64(ttl) != res.TTL {
return obj, &ttl, nil
}
return obj, nil, nil
})
if err != nil {
if creating {
err = etcderr.InterpretCreateError(err, e.EndpointName, name)
err = rest.CheckGeneratedNameError(e.CreateStrategy, err, obj)
} else {
err = etcderr.InterpretUpdateError(err, e.EndpointName, name)
}
return nil, false, err
}
if creating {
if e.AfterCreate != nil {
if err := e.AfterCreate(out); err != nil {
return nil, false, err
}
}
} else {
if e.AfterUpdate != nil {
if err := e.AfterUpdate(out); err != nil {
return nil, false, err
}
}
}
if e.Decorator != nil {
if err := e.Decorator(obj); err != nil {
return nil, false, err
}
}
return out, creating, nil
}