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Merge pull request #26044 from smarterclayton/multiversion_encode

Browse Source 
Automatic merge from submit-queue

Guarantee that Encode handles nested objects again
This commit is contained in:
Kubernetes Submit Queue 2016-08-18 21:10:55 -07:00 committed by GitHub
commit c19e9cc89d
44 changed files with 790 additions and 423 deletions
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2
cmd/kube-proxy/app/options/options.go
View File

@ -50,7 +50,7 @@ type ProxyServerConfig struct {
func NewProxyConfig() *ProxyServerConfig {
config := componentconfig.KubeProxyConfiguration{}
api.Scheme.Convert(&v1alpha1.KubeProxyConfiguration{}, &config)
api.Scheme.Convert(&v1alpha1.KubeProxyConfiguration{}, &config, nil)
return &ProxyServerConfig{
KubeProxyConfiguration: config,
ContentType: "application/vnd.kubernetes.protobuf",

2
cmd/kubelet/app/options/options.go
View File

@ -58,7 +58,7 @@ type KubeletServer struct {
// NewKubeletServer will create a new KubeletServer with default values.
func NewKubeletServer() *KubeletServer {
config := componentconfig.KubeletConfiguration{}
api.Scheme.Convert(&v1alpha1.KubeletConfiguration{}, &config)
api.Scheme.Convert(&v1alpha1.KubeletConfiguration{}, &config, nil)
return &KubeletServer{
AuthPath: util.NewStringFlag("/var/lib/kubelet/kubernetes_auth"), // deprecated
KubeConfig: util.NewStringFlag("/var/lib/kubelet/kubeconfig"),

4
pkg/api/meta/restmapper_test.go
View File

@ -28,11 +28,11 @@ import (
type fakeConvertor struct{}
func (fakeConvertor) Convert(in, out interface{}) error {
func (fakeConvertor) Convert(in, out, context interface{}) error {
return nil
}
func (fakeConvertor) ConvertToVersion(in runtime.Object, _ unversioned.GroupVersion) (runtime.Object, error) {
func (fakeConvertor) ConvertToVersion(in runtime.Object, _ runtime.GroupVersioner) (runtime.Object, error) {
return in, nil
}

2
pkg/api/serialization_proto_test.go
View File

@ -106,7 +106,7 @@ func BenchmarkEncodeCodecFromInternalProtobuf(b *testing.B) {
width := len(items)
encodable := make([]api.Pod, width)
for i := range items {
if err := api.Scheme.Convert(&items[i], &encodable[i]); err != nil {
if err := api.Scheme.Convert(&items[i], &encodable[i], nil); err != nil {
b.Fatal(err)
}
}

21
pkg/api/serialization_test.go
View File

@ -43,7 +43,6 @@ import (
"k8s.io/kubernetes/pkg/conversion"
"k8s.io/kubernetes/pkg/runtime"
"k8s.io/kubernetes/pkg/runtime/serializer/streaming"
"k8s.io/kubernetes/pkg/runtime/serializer/versioning"
"k8s.io/kubernetes/pkg/util/diff"
"k8s.io/kubernetes/pkg/util/sets"
"k8s.io/kubernetes/pkg/watch"
@ -93,7 +92,11 @@ func roundTrip(t *testing.T, codec runtime.Codec, item runtime.Object) {
name := reflect.TypeOf(item).Elem().Name()
data, err := runtime.Encode(codec, item)
if err != nil {
t.Errorf("%v: %v (%s)", name, err, printer.Sprintf("%#v", item))
if runtime.IsNotRegisteredError(err) {
t.Logf("%v: not registered: %v (%s)", name, err, printer.Sprintf("%#v", item))
} else {
t.Errorf("%v: %v (%s)", name, err, printer.Sprintf("%#v", item))
}
return
}
@ -181,10 +184,14 @@ func TestSetControllerConversion(t *testing.T) {
t.Fatalf("unexpected encoding error: %v", err)
}
decoder := api.Codecs.UniversalDecoder(*extGroup.GroupVersion(), *defaultGroup.GroupVersion())
if err := versioning.EnableCrossGroupDecoding(decoder, extGroup.GroupVersion().Group, defaultGroup.GroupVersion().Group); err != nil {
t.Fatalf("unexpected error while enabling cross-group decoding: %v", err)
}
decoder := api.Codecs.DecoderToVersion(
api.Codecs.UniversalDeserializer(),
runtime.NewMultiGroupVersioner(
*defaultGroup.GroupVersion(),
unversioned.GroupKind{Group: defaultGroup.GroupVersion().Group},
unversioned.GroupKind{Group: extGroup.GroupVersion().Group},
),
)
t.Logf("rs.v1beta1.extensions -> rc._internal")
if err := runtime.DecodeInto(decoder, data, rc); err != nil {
@ -475,7 +482,7 @@ func BenchmarkEncodeCodecFromInternal(b *testing.B) {
width := len(items)
encodable := make([]api.Pod, width)
for i := range items {
if err := api.Scheme.Convert(&items[i], &encodable[i]); err != nil {
if err := api.Scheme.Convert(&items[i], &encodable[i], nil); err != nil {
b.Fatal(err)
}
}

6
pkg/api/testapi/testapi.go
View File

@ -281,7 +281,7 @@ func (g TestGroup) Codec() runtime.Codec {
if serializer.Serializer == nil {
return api.Codecs.LegacyCodec(g.externalGroupVersion)
}
return api.Codecs.CodecForVersions(serializer, api.Codecs.UniversalDeserializer(), []unversioned.GroupVersion{g.externalGroupVersion}, nil)
return api.Codecs.CodecForVersions(serializer, api.Codecs.UniversalDeserializer(), unversioned.GroupVersions{g.externalGroupVersion}, nil)
}
// NegotiatedSerializer returns the negotiated serializer for the server.
@ -309,7 +309,7 @@ func (g TestGroup) StorageCodec() runtime.Codec {
}
ds := recognizer.NewDecoder(s, api.Codecs.UniversalDeserializer())
return api.Codecs.CodecForVersions(s, ds, []unversioned.GroupVersion{g.externalGroupVersion}, nil)
return api.Codecs.CodecForVersions(s, ds, unversioned.GroupVersions{g.externalGroupVersion}, nil)
}
// Converter returns the api.Scheme for the API version to test against, as set by the
@ -393,7 +393,7 @@ func (g TestGroup) RESTMapper() meta.RESTMapper {
}
// ExternalGroupVersions returns all external group versions allowed for the server.
func ExternalGroupVersions() []unversioned.GroupVersion {
func ExternalGroupVersions() unversioned.GroupVersions {
versions := []unversioned.GroupVersion{}
for _, g := range Groups {
gv := g.GroupVersion()

38
pkg/api/unversioned/group_version.go
View File

@ -179,6 +179,25 @@ func (gv GroupVersion) String() string {
return gv.Version
}
// KindForGroupVersionKinds identifies the preferred GroupVersionKind out of a list. It returns ok false
// if none of the options match the group. It prefers a match to group and version over just group.
// TODO: Move GroupVersion to a package under pkg/runtime, since it's used by scheme.
// TODO: Introduce an adapter type between GroupVersion and runtime.GroupVersioner, and use LegacyCodec(GroupVersion)
// in fewer places.
func (gv GroupVersion) KindForGroupVersionKinds(kinds []GroupVersionKind) (target GroupVersionKind, ok bool) {
for _, gvk := range kinds {
if gvk.Group == gv.Group && gvk.Version == gv.Version {
return gvk, true
}
}
for _, gvk := range kinds {
if gvk.Group == gv.Group {
return gv.WithKind(gvk.Kind), true
}
}
return GroupVersionKind{}, false
}
// ParseGroupVersion turns "group/version" string into a GroupVersion struct. It reports error
// if it cannot parse the string.
func ParseGroupVersion(gv string) (GroupVersion, error) {
@ -241,6 +260,25 @@ func (gv *GroupVersion) UnmarshalText(value []byte) error {
return gv.unmarshal(value)
}
// GroupVersions can be used to represent a set of desired group versions.
// TODO: Move GroupVersions to a package under pkg/runtime, since it's used by scheme.
// TODO: Introduce an adapter type between GroupVersions and runtime.GroupVersioner, and use LegacyCodec(GroupVersion)
// in fewer places.
type GroupVersions []GroupVersion
// KindForGroupVersionKinds identifies the preferred GroupVersionKind out of a list. It returns ok false
// if none of the options match the group.
func (gvs GroupVersions) KindForGroupVersionKinds(kinds []GroupVersionKind) (target GroupVersionKind, ok bool) {
for _, gv := range gvs {
target, ok := gv.KindForGroupVersionKinds(kinds)
if !ok {
continue
}
return target, true
}
return GroupVersionKind{}, false
}
// ToAPIVersionAndKind is a convenience method for satisfying runtime.Object on types that
// do not use TypeMeta.
func (gvk *GroupVersionKind) ToAPIVersionAndKind() (string, string) {

6
pkg/api/v1/conversion_test.go
View File

@ -127,7 +127,7 @@ func TestPodSpecConversion(t *testing.T) {
ServiceAccountName: name,
}
v := versioned.PodSpec{}
if err := api.Scheme.Convert(i, &v); err != nil {
if err := api.Scheme.Convert(i, &v, nil); err != nil {
t.Fatalf("unexpected error: %v", err)
}
if v.ServiceAccountName != name {
@ -152,7 +152,7 @@ func TestPodSpecConversion(t *testing.T) {
}
for k, v := range testCases {
got := api.PodSpec{}
err := api.Scheme.Convert(v, &got)
err := api.Scheme.Convert(v, &got, nil)
if err != nil {
t.Fatalf("unexpected error for case %d: %v", k, err)
}
@ -206,7 +206,7 @@ func TestResourceListConversion(t *testing.T) {
for i, test := range tests {
output := api.ResourceList{}
err := api.Scheme.Convert(&test.input, &output)
err := api.Scheme.Convert(&test.input, &output, nil)
if err != nil {
t.Fatalf("unexpected error for case %d: %v", i, err)
}

2
pkg/api/v1/defaults_test.go
View File

@ -40,7 +40,7 @@ func roundTrip(t *testing.T, obj runtime.Object) runtime.Object {
return nil
}
obj3 := reflect.New(reflect.TypeOf(obj).Elem()).Interface().(runtime.Object)
err = api.Scheme.Convert(obj2, obj3)
err = api.Scheme.Convert(obj2, obj3, nil)
if err != nil {
t.Errorf("%v\nSource: %#v", err, obj2)
return nil

2
pkg/apis/abac/v0/conversion_test.go
View File

@ -67,7 +67,7 @@ func TestConversion(t *testing.T) {
}
for k, tc := range testcases {
internal := &api.Policy{}
if err := api.Scheme.Convert(tc.old, internal); err != nil {
if err := api.Scheme.Convert(tc.old, internal, nil); err != nil {
t.Errorf("%s: unexpected error: %v", k, err)
}
if !reflect.DeepEqual(internal, tc.expected) {

1
pkg/apis/extensions/register.go
View File

@ -68,6 +68,7 @@ func addKnownTypes(scheme *runtime.Scheme) error {
&Ingress{},
&IngressList{},
&api.ListOptions{},
&api.DeleteOptions{},
&ReplicaSet{},
&ReplicaSetList{},
&api.ExportOptions{},

4
pkg/apis/extensions/v1beta1/conversion_test.go
View File

@ -59,7 +59,7 @@ func TestJobSpecConversion(t *testing.T) {
ManualSelector: test.in,
}
v := versioned.JobSpec{}
if err := api.Scheme.Convert(i, &v); err != nil {
if err := api.Scheme.Convert(i, &v, nil); err != nil {
t.Fatalf("unexpected error: %v", err)
}
if !reflect.DeepEqual(test.expectOut, v.AutoSelector) {
@ -73,7 +73,7 @@ func TestJobSpecConversion(t *testing.T) {
AutoSelector: test.in,
}
e := batch.JobSpec{}
if err := api.Scheme.Convert(i, &e); err != nil {
if err := api.Scheme.Convert(i, &e, nil); err != nil {
t.Fatalf("unexpected error: %v", err)
}
if !reflect.DeepEqual(test.expectOut, e.ManualSelector) {

2
pkg/apis/extensions/v1beta1/defaults_test.go
View File

@ -728,7 +728,7 @@ func roundTrip(t *testing.T, obj runtime.Object) runtime.Object {
return nil
}
obj3 := reflect.New(reflect.TypeOf(obj).Elem()).Interface().(runtime.Object)
err = api.Scheme.Convert(obj2, obj3)
err = api.Scheme.Convert(obj2, obj3, nil)
if err != nil {
t.Errorf("%v\nSource: %#v", err, obj2)
return nil

2
pkg/apis/policy/register.go
View File

@ -17,6 +17,7 @@ limitations under the License.
package policy
import (
"k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/api/unversioned"
"k8s.io/kubernetes/pkg/runtime"
)
@ -48,6 +49,7 @@ func addKnownTypes(scheme *runtime.Scheme) error {
scheme.AddKnownTypes(SchemeGroupVersion,
&PodDisruptionBudget{},
&PodDisruptionBudgetList{},
&api.ListOptions{},
)
return nil
}

2
pkg/apiserver/apiserver.go
View File

@ -320,7 +320,7 @@ type StripVersionNegotiatedSerializer struct {
runtime.NegotiatedSerializer
}
func (n StripVersionNegotiatedSerializer) EncoderForVersion(encoder runtime.Encoder, gv unversioned.GroupVersion) runtime.Encoder {
func (n StripVersionNegotiatedSerializer) EncoderForVersion(encoder runtime.Encoder, gv runtime.GroupVersioner) runtime.Encoder {
serializer, ok := encoder.(runtime.Serializer)
if !ok {
// The stripVersionEncoder needs both an encoder and decoder, but is called from a context that doesn't have access to the

4
pkg/apiserver/negotiate_test.go
View File

@ -64,11 +64,11 @@ func (n *fakeNegotiater) StreamingSerializerForMediaType(mediaType string, optio
}, n.streamSerializer != nil
}
func (n *fakeNegotiater) EncoderForVersion(serializer runtime.Encoder, gv unversioned.GroupVersion) runtime.Encoder {
func (n *fakeNegotiater) EncoderForVersion(serializer runtime.Encoder, gv runtime.GroupVersioner) runtime.Encoder {
return n.serializer
}
func (n *fakeNegotiater) DecoderToVersion(serializer runtime.Decoder, gv unversioned.GroupVersion) runtime.Decoder {
func (n *fakeNegotiater) DecoderToVersion(serializer runtime.Decoder, gv runtime.GroupVersioner) runtime.Decoder {
return n.serializer
}

2
pkg/auth/authorizer/abac/abac.go
View File

@ -89,7 +89,7 @@ func NewFromFile(path string) (policyList, error) {
if err := runtime.DecodeInto(decoder, b, oldPolicy); err != nil {
return nil, policyLoadError{path, i, b, err}
}
if err := api.Scheme.Convert(oldPolicy, p); err != nil {
if err := api.Scheme.Convert(oldPolicy, p, nil); err != nil {
return nil, policyLoadError{path, i, b, err}
}
pl = append(pl, p)

4
pkg/auth/authorizer/abac/abac_test.go
View File

@ -562,7 +562,7 @@ func TestSubjectMatches(t *testing.T) {
for k, tc := range testCases {
policy := &api.Policy{}
if err := api.Scheme.Convert(tc.Policy, policy); err != nil {
if err := api.Scheme.Convert(tc.Policy, policy, nil); err != nil {
t.Errorf("%s: error converting: %v", k, err)
continue
}
@ -950,7 +950,7 @@ func TestPolicy(t *testing.T) {
}
for _, test := range tests {
policy := &api.Policy{}
if err := api.Scheme.Convert(test.policy, policy); err != nil {
if err := api.Scheme.Convert(test.policy, policy, nil); err != nil {
t.Errorf("%s: error converting: %v", test.name, err)
continue
}

4
pkg/client/unversioned/clientcmd/api/latest/latest.go
View File

@ -60,7 +60,7 @@ func init() {
Scheme,
yamlSerializer,
yamlSerializer,
[]unversioned.GroupVersion{{Version: Version}},
[]unversioned.GroupVersion{{Version: runtime.APIVersionInternal}},
unversioned.GroupVersion{Version: Version},
runtime.InternalGroupVersioner,
)
}

2
pkg/controller/controller_utils.go
View File

@ -458,7 +458,7 @@ func GetPodFromTemplate(template *api.PodTemplateSpec, parentObject runtime.Obje
if controllerRef != nil {
pod.OwnerReferences = append(pod.OwnerReferences, *controllerRef)
}
if err := api.Scheme.Convert(&template.Spec, &pod.Spec); err != nil {
if err := api.Scheme.Convert(&template.Spec, &pod.Spec, nil); err != nil {
return nil, fmt.Errorf("unable to convert pod template: %v", err)
}
return pod, nil

2
pkg/controller/scheduledjob/utils.go
View File

@ -209,7 +209,7 @@ func getJobFromTemplate(sj *batch.ScheduledJob, scheduledTime time.Time) (*batch
Name: name,
},
}
if err := api.Scheme.Convert(&sj.Spec.JobTemplate.Spec, &job.Spec); err != nil {
if err := api.Scheme.Convert(&sj.Spec.JobTemplate.Spec, &job.Spec, nil); err != nil {
return nil, fmt.Errorf("unable to convert job template: %v", err)
}
return job, nil

2
pkg/conversion/converter.go
View File

@ -213,6 +213,8 @@ type Meta struct {
// KeyNameMapping is an optional function which may map the listed key (field name)
// into a source and destination value.
KeyNameMapping FieldMappingFunc
// Context is an optional field that callers may use to pass info to conversion functions.
Context interface{}
}
// scope contains information about an ongoing conversion.

30
pkg/genericapiserver/storage_factory.go
View File

@ -24,7 +24,6 @@ import (
"k8s.io/kubernetes/pkg/api/unversioned"
"k8s.io/kubernetes/pkg/runtime"
"k8s.io/kubernetes/pkg/runtime/serializer/recognizer"
"k8s.io/kubernetes/pkg/runtime/serializer/versioning"
"k8s.io/kubernetes/pkg/storage/storagebackend"
"k8s.io/kubernetes/pkg/util/sets"
@ -262,18 +261,25 @@ func NewStorageCodec(storageMediaType string, ns runtime.StorageSerializer, stor
s = runtime.NewBase64Serializer(s)
}
encoder := ns.EncoderForVersion(
s,
runtime.NewMultiGroupVersioner(
storageVersion,
unversioned.GroupKind{Group: storageVersion.Group},
unversioned.GroupKind{Group: memoryVersion.Group},
),
)
ds := recognizer.NewDecoder(s, ns.UniversalDeserializer())
encoder := ns.EncoderForVersion(s, storageVersion)
decoder := ns.DecoderToVersion(ds, memoryVersion)
if memoryVersion.Group != storageVersion.Group {
// Allow this codec to translate between groups.
if err := versioning.EnableCrossGroupEncoding(encoder, memoryVersion.Group, storageVersion.Group); err != nil {
return nil, fmt.Errorf("error setting up encoder from %v to %v: %v", memoryVersion, storageVersion, err)
}
if err := versioning.EnableCrossGroupDecoding(decoder, storageVersion.Group, memoryVersion.Group); err != nil {
return nil, fmt.Errorf("error setting up decoder from %v to %v: %v", storageVersion, memoryVersion, err)
}
}
decoder := ns.DecoderToVersion(
ds,
runtime.NewMultiGroupVersioner(
memoryVersion,
unversioned.GroupKind{Group: memoryVersion.Group},
unversioned.GroupKind{Group: storageVersion.Group},
),
)
return runtime.NewCodec(encoder, decoder), nil
}

2
pkg/kubectl/cmd/patch.go
View File

@ -197,7 +197,7 @@ func RunPatch(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []stri
if err != nil {
return err
}
originalObjJS, err := runtime.Encode(api.Codecs.LegacyCodec(), info.VersionedObject.(runtime.Object))
originalObjJS, err := runtime.Encode(api.Codecs.LegacyCodec(mapping.GroupVersionKind.GroupVersion()), info.VersionedObject.(runtime.Object))
if err != nil {
return err
}

17
pkg/kubectl/resource_printer.go
View File

@ -195,20 +195,11 @@ func (p *VersionedPrinter) PrintObj(obj runtime.Object, w io.Writer) error {
if len(p.versions) == 0 {
return fmt.Errorf("no version specified, object cannot be converted")
}
for _, version := range p.versions {
if version.IsEmpty() {
continue
}
converted, err := p.converter.ConvertToVersion(obj, version)
if runtime.IsNotRegisteredError(err) {
continue
}
if err != nil {
return err
}
return p.printer.PrintObj(converted, w)
converted, err := p.converter.ConvertToVersion(obj, unversioned.GroupVersions(p.versions))
if err != nil {
return err
}
return fmt.Errorf("the object cannot be converted to any of the versions: %v", p.versions)
return p.printer.PrintObj(converted, w)
}
// TODO: implement HandledResources()

2
pkg/kubelet/config/file_test.go
View File

@ -129,7 +129,7 @@ func TestReadPodsFromFile(t *testing.T) {
for _, testCase := range testCases {
func() {
var versionedPod runtime.Object
err := testapi.Default.Converter().Convert(&testCase.pod, &versionedPod)
err := testapi.Default.Converter().Convert(&testCase.pod, &versionedPod, nil)
if err != nil {
t.Fatalf("%s: error in versioning the pod: %v", testCase.desc, err)
}

2
pkg/kubelet/config/http_test.go
View File

@ -276,7 +276,7 @@ func TestExtractPodsFromHTTP(t *testing.T) {
for _, testCase := range testCases {
var versionedPods runtime.Object
err := testapi.Default.Converter().Convert(&testCase.pods, &versionedPods)
err := testapi.Default.Converter().Convert(&testCase.pods, &versionedPods, nil)
if err != nil {
t.Fatalf("%s: error in versioning the pods: %s", testCase.desc, err)
}

16
pkg/registry/thirdpartyresourcedata/codec.go
View File

@ -42,7 +42,7 @@ type thirdPartyObjectConverter struct {
converter runtime.ObjectConvertor
}
func (t *thirdPartyObjectConverter) ConvertToVersion(in runtime.Object, outVersion unversioned.GroupVersion) (out runtime.Object, err error) {
func (t *thirdPartyObjectConverter) ConvertToVersion(in runtime.Object, outVersion runtime.GroupVersioner) (out runtime.Object, err error) {
switch in.(type) {
// This seems weird, but in this case the ThirdPartyResourceData is really just a wrapper on the raw 3rd party data.
// The actual thing printed/sent to server is the actual raw third party resource data, which only has one version.
@ -53,8 +53,8 @@ func (t *thirdPartyObjectConverter) ConvertToVersion(in runtime.Object, outVersi
}
}
func (t *thirdPartyObjectConverter) Convert(in, out interface{}) error {
return t.converter.Convert(in, out)
func (t *thirdPartyObjectConverter) Convert(in, out, context interface{}) error {
return t.converter.Convert(in, out, context)
}
func (t *thirdPartyObjectConverter) ConvertFieldLabel(version, kind, label, value string) (string, string, error) {
@ -234,11 +234,11 @@ func (t *thirdPartyResourceDataCodecFactory) StreamingSerializerForMediaType(med
}
}
func (t *thirdPartyResourceDataCodecFactory) EncoderForVersion(s runtime.Encoder, gv unversioned.GroupVersion) runtime.Encoder {
return &thirdPartyResourceDataEncoder{delegate: t.delegate.EncoderForVersion(s, gv), gvk: gv.WithKind(t.kind)}
func (t *thirdPartyResourceDataCodecFactory) EncoderForVersion(s runtime.Encoder, gv runtime.GroupVersioner) runtime.Encoder {
return &thirdPartyResourceDataEncoder{delegate: t.delegate.EncoderForVersion(s, gv), gvk: t.encodeGV.WithKind(t.kind)}
}
func (t *thirdPartyResourceDataCodecFactory) DecoderToVersion(s runtime.Decoder, gv unversioned.GroupVersion) runtime.Decoder {
func (t *thirdPartyResourceDataCodecFactory) DecoderToVersion(s runtime.Decoder, gv runtime.GroupVersioner) runtime.Decoder {
return NewDecoder(t.delegate.DecoderToVersion(s, gv), t.kind)
}
@ -517,6 +517,10 @@ func (t *thirdPartyResourceDataEncoder) Encode(obj runtime.Object, stream io.Wri
listItems[ix] = json.RawMessage(buff.Bytes())
}
if t.gvk.IsEmpty() {
return fmt.Errorf("thirdPartyResourceDataEncoder was not given a target version")
}
encMap := struct {
Kind string `json:"kind,omitempty"`
Items []json.RawMessage `json:"items"`

86
pkg/runtime/codec.go
View File

@ -145,16 +145,16 @@ func (c *parameterCodec) DecodeParameters(parameters url.Values, from unversione
}
targetGVK := targetGVKs[0]
if targetGVK.GroupVersion() == from {
return c.convertor.Convert(&parameters, into)
return c.convertor.Convert(&parameters, into, nil)
}
input, err := c.creator.New(from.WithKind(targetGVK.Kind))
if err != nil {
return err
}
if err := c.convertor.Convert(&parameters, input); err != nil {
if err := c.convertor.Convert(&parameters, input, nil); err != nil {
return err
}
return c.convertor.Convert(input, into)
return c.convertor.Convert(input, into, nil)
}
// EncodeParameters converts the provided object into the to version, then converts that object to url.Values.
@ -198,3 +198,83 @@ func (s base64Serializer) Decode(data []byte, defaults *unversioned.GroupVersion
}
return s.Serializer.Decode(out[:n], defaults, into)
}
var (
// InternalGroupVersioner will always prefer the internal version for a given group version kind.
InternalGroupVersioner GroupVersioner = internalGroupVersioner{}
// DisabledGroupVersioner will reject all kinds passed to it.
DisabledGroupVersioner GroupVersioner = disabledGroupVersioner{}
)
type internalGroupVersioner struct{}
// KindForGroupVersionKinds returns an internal Kind if one is found, or converts the first provided kind to the internal version.
func (internalGroupVersioner) KindForGroupVersionKinds(kinds []unversioned.GroupVersionKind) (unversioned.GroupVersionKind, bool) {
for _, kind := range kinds {
if kind.Version == APIVersionInternal {
return kind, true
}
}
for _, kind := range kinds {
return unversioned.GroupVersionKind{Group: kind.Group, Version: APIVersionInternal, Kind: kind.Kind}, true
}
return unversioned.GroupVersionKind{}, false
}
type disabledGroupVersioner struct{}
// KindForGroupVersionKinds returns false for any input.
func (disabledGroupVersioner) KindForGroupVersionKinds(kinds []unversioned.GroupVersionKind) (unversioned.GroupVersionKind, bool) {
return unversioned.GroupVersionKind{}, false
}
// GroupVersioners implements GroupVersioner and resolves to the first exact match for any kind.
type GroupVersioners []GroupVersioner
// KindForGroupVersionKinds returns the first match of any of the group versioners, or false if no match occured.
func (gvs GroupVersioners) KindForGroupVersionKinds(kinds []unversioned.GroupVersionKind) (unversioned.GroupVersionKind, bool) {
for _, gv := range gvs {
target, ok := gv.KindForGroupVersionKinds(kinds)
if !ok {
continue
}
return target, true
}
return unversioned.GroupVersionKind{}, false
}
// Assert that unversioned.GroupVersion and GroupVersions implement GroupVersioner
var _ GroupVersioner = unversioned.GroupVersion{}
var _ GroupVersioner = unversioned.GroupVersions{}
var _ GroupVersioner = multiGroupVersioner{}
type multiGroupVersioner struct {
target unversioned.GroupVersion
acceptedGroupKinds []unversioned.GroupKind
}
// NewMultiGroupVersioner returns the provided group version for any kind that matches one of the provided group kinds.
// Kind may be empty in the provided group kind, in which case any kind will match.
func NewMultiGroupVersioner(gv unversioned.GroupVersion, groupKinds ...unversioned.GroupKind) GroupVersioner {
if len(groupKinds) == 0 || (len(groupKinds) == 1 && groupKinds[0].Group == gv.Group) {
return gv
}
return multiGroupVersioner{target: gv, acceptedGroupKinds: groupKinds}
}
// KindForGroupVersionKinds returns the target group version if any kind matches any of the original group kinds. It will
// use the originating kind where possible.
func (v multiGroupVersioner) KindForGroupVersionKinds(kinds []unversioned.GroupVersionKind) (unversioned.GroupVersionKind, bool) {
for _, src := range kinds {
for _, kind := range v.acceptedGroupKinds {
if kind.Group != src.Group {
continue
}
if len(kind.Kind) > 0 && kind.Kind != src.Kind {
continue
}
return v.target.WithKind(src.Kind), true
}
}
return unversioned.GroupVersionKind{}, false
}

2
pkg/runtime/conversion_test.go
View File

@ -122,7 +122,7 @@ func TestStringMapConversion(t *testing.T) {
for k, tc := range testCases {
out := &ExternalComplex{}
if err := scheme.Convert(&tc.input, out); (tc.errFn == nil && err != nil) || (tc.errFn != nil && !tc.errFn(err)) {
if err := scheme.Convert(&tc.input, out, nil); (tc.errFn == nil && err != nil) || (tc.errFn != nil && !tc.errFn(err)) {
t.Errorf("%s: unexpected error: %v", k, err)
continue
} else if err != nil {

2
pkg/runtime/helper.go
View File

@ -35,7 +35,7 @@ var _ ObjectConvertor = unsafeObjectConvertor{}
// ConvertToVersion converts in to the provided outVersion without copying the input first, which
// is only safe if the output object is not mutated or reused.
func (c unsafeObjectConvertor) ConvertToVersion(in Object, outVersion unversioned.GroupVersion) (Object, error) {
func (c unsafeObjectConvertor) ConvertToVersion(in Object, outVersion GroupVersioner) (Object, error) {
return c.Scheme.UnsafeConvertToVersion(in, outVersion)
}

47
pkg/runtime/interfaces.go
View File

@ -30,12 +30,23 @@ const (
APIVersionInternal = "__internal"
)
// GroupVersioner refines a set of possible conversion targets into a single option.
type GroupVersioner interface {
// KindForGroupVersionKinds returns a desired target group version kind for the given input, or returns ok false if no
// target is known. In general, if the return target is not in the input list, the caller is expected to invoke
// Scheme.New(target) and then perform a conversion between the current Go type and the destination Go type.
// Sophisticated implementations may use additional information about the input kinds to pick a destination kind.
KindForGroupVersionKinds(kinds []unversioned.GroupVersionKind) (target unversioned.GroupVersionKind, ok bool)
}
// Encoders write objects to a serialized form
type Encoder interface {
// Encode writes an object to a stream. Implementations may return errors if the versions are
// incompatible, or if no conversion is defined.
Encode(obj Object, w io.Writer) error
}
// Decoders attempt to load an object from data.
type Decoder interface {
// Decode attempts to deserialize the provided data using either the innate typing of the scheme or the
// default kind, group, and version provided. It returns a decoded object as well as the kind, group, and
@ -117,12 +128,10 @@ type NegotiatedSerializer interface {
// EncoderForVersion returns an encoder that ensures objects being written to the provided
// serializer are in the provided group version.
// TODO: take multiple group versions
EncoderForVersion(serializer Encoder, gv unversioned.GroupVersion) Encoder
EncoderForVersion(serializer Encoder, gv GroupVersioner) Encoder
// DecoderForVersion returns a decoder that ensures objects being read by the provided
// serializer are in the provided group version by default.
// TODO: take multiple group versions
DecoderToVersion(serializer Decoder, gv unversioned.GroupVersion) Decoder
DecoderToVersion(serializer Decoder, gv GroupVersioner) Decoder
}
// StorageSerializer is an interface used for obtaining encoders, decoders, and serializers
@ -139,29 +148,41 @@ type StorageSerializer interface {
// EncoderForVersion returns an encoder that ensures objects being written to the provided
// serializer are in the provided group version.
// TODO: take multiple group versions
EncoderForVersion(serializer Encoder, gv unversioned.GroupVersion) Encoder
EncoderForVersion(serializer Encoder, gv GroupVersioner) Encoder
// DecoderForVersion returns a decoder that ensures objects being read by the provided
// serializer are in the provided group version by default.
// TODO: take multiple group versions
DecoderToVersion(serializer Decoder, gv unversioned.GroupVersion) Decoder
DecoderToVersion(serializer Decoder, gv GroupVersioner) Decoder
}
// NestedObjectEncoder is an optional interface that objects may implement to be given
// an opportunity to encode any nested Objects / RawExtensions during serialization.
type NestedObjectEncoder interface {
EncodeNestedObjects(e Encoder) error
}
// NestedObjectDecoder is an optional interface that objects may implement to be given
// an opportunity to decode any nested Objects / RawExtensions during serialization.
type NestedObjectDecoder interface {
DecodeNestedObjects(d Decoder) error
}
///////////////////////////////////////////////////////////////////////////////
// Non-codec interfaces
type ObjectVersioner interface {
ConvertToVersion(in Object, outVersion unversioned.GroupVersion) (out Object, err error)
ConvertToVersion(in Object, gv GroupVersioner) (out Object, err error)
}
// ObjectConvertor converts an object to a different version.
type ObjectConvertor interface {
// Convert attempts to convert one object into another, or returns an error. This method does
// not guarantee the in object is not mutated.
Convert(in, out interface{}) error
// not guarantee the in object is not mutated. The context argument will be passed to
// all nested conversions.
Convert(in, out, context interface{}) error
// ConvertToVersion takes the provided object and converts it the provided version. This
// method does not guarantee that the in object is not mutated.
ConvertToVersion(in Object, outVersion unversioned.GroupVersion) (out Object, err error)
// method does not guarantee that the in object is not mutated. This method is similar to
// Convert() but handles specific details of choosing the correct output version.
ConvertToVersion(in Object, gv GroupVersioner) (out Object, err error)
ConvertFieldLabel(version, kind, label, value string) (string, string, error)
}

170
pkg/runtime/scheme.go
View File

@ -237,7 +237,7 @@ func (s *Scheme) ObjectKinds(obj Object) ([]unversioned.GroupVersionKind, bool,
gvks, ok := s.typeToGVK[t]
if !ok {
return nil, false, &notRegisteredErr{t: t}
return nil, false, NewNotRegisteredErr(unversioned.GroupVersionKind{}, t)
}
_, unversionedType := s.unversionedTypes[t]
@ -275,7 +275,7 @@ func (s *Scheme) New(kind unversioned.GroupVersionKind) (Object, error) {
if t, exists := s.unversionedKinds[kind.Kind]; exists {
return reflect.New(t).Interface().(Object), nil
}
return nil, &notRegisteredErr{gvk: kind}
return nil, NewNotRegisteredErr(kind, nil)
}
// AddGenericConversionFunc adds a function that accepts the ConversionFunc call pattern
@ -438,23 +438,13 @@ func (s *Scheme) DeepCopy(src interface{}) (interface{}, error) {
// Convert will attempt to convert in into out. Both must be pointers. For easy
// testing of conversion functions. Returns an error if the conversion isn't
// possible. You can call this with types that haven't been registered (for example,
// a to test conversion of types that are nested within registered types), but in
// that case, the conversion.Scope object passed to your conversion functions won't
// have SrcVersion or DestVersion fields set correctly in Meta().
func (s *Scheme) Convert(in, out interface{}) error {
inVersion := unversioned.GroupVersion{Group: "unknown", Version: "unknown"}
outVersion := unversioned.GroupVersion{Group: "unknown", Version: "unknown"}
if inObj, ok := in.(Object); ok {
if gvks, _, err := s.ObjectKinds(inObj); err == nil {
inVersion = gvks[0].GroupVersion()
}
}
if outObj, ok := out.(Object); ok {
if gvks, _, err := s.ObjectKinds(outObj); err == nil {
outVersion = gvks[0].GroupVersion()
}
}
flags, meta := s.generateConvertMeta(inVersion, outVersion, in)
// a to test conversion of types that are nested within registered types). The
// context interface is passed to the convertor.
// TODO: identify whether context should be hidden, or behind a formal context/scope
// interface
func (s *Scheme) Convert(in, out interface{}, context interface{}) error {
flags, meta := s.generateConvertMeta(in)
meta.Context = context
if flags == 0 {
flags = conversion.AllowDifferentFieldTypeNames
}
@ -478,73 +468,20 @@ func (s *Scheme) ConvertFieldLabel(version, kind, label, value string) (string,
// version within this scheme. Will return an error if the provided version does not
// contain the inKind (or a mapping by name defined with AddKnownTypeWithName). Will also
// return an error if the conversion does not result in a valid Object being
// returned. The serializer handles loading/serializing nested objects.
func (s *Scheme) ConvertToVersion(in Object, outVersion unversioned.GroupVersion) (Object, error) {
switch in.(type) {
case *Unknown, *Unstructured, *UnstructuredList:
old := in.GetObjectKind().GroupVersionKind()
defer in.GetObjectKind().SetGroupVersionKind(old)
setTargetVersion(in, s, outVersion)
return in, nil
}
t := reflect.TypeOf(in)
if t.Kind() != reflect.Ptr {
return nil, fmt.Errorf("only pointer types may be converted: %v", t)
}
t = t.Elem()
if t.Kind() != reflect.Struct {
return nil, fmt.Errorf("only pointers to struct types may be converted: %v", t)
}
var kind unversioned.GroupVersionKind
if unversionedKind, ok := s.unversionedTypes[t]; ok {
kind = unversionedKind
} else {
kinds, ok := s.typeToGVK[t]
if !ok || len(kinds) == 0 {
return nil, fmt.Errorf("%v is not a registered type and cannot be converted into version %q", t, outVersion)
}
kind = kinds[0]
}
outKind := outVersion.WithKind(kind.Kind)
inKinds, _, err := s.ObjectKinds(in)
if err != nil {
return nil, err
}
out, err := s.New(outKind)
if err != nil {
return nil, err
}
flags, meta := s.generateConvertMeta(inKinds[0].GroupVersion(), outVersion, in)
if err := s.converter.Convert(in, out, flags, meta); err != nil {
return nil, err
}
setTargetVersion(out, s, outVersion)
return out, nil
// returned. Passes target down to the conversion methods as the Context on the scope.
func (s *Scheme) ConvertToVersion(in Object, target GroupVersioner) (Object, error) {
return s.convertToVersion(true, in, target)
}
// UnsafeConvertToVersion will convert in to the provided outVersion if such a conversion is possible,
// UnsafeConvertToVersion will convert in to the provided target if such a conversion is possible,
// but does not guarantee the output object does not share fields with the input object. It attempts to be as
// efficient as possible when doing conversion.
func (s *Scheme) UnsafeConvertToVersion(in Object, outVersion unversioned.GroupVersion) (Object, error) {
switch t := in.(type) {
case *Unknown:
t.APIVersion = outVersion.String()
return t, nil
case *Unstructured:
t.SetAPIVersion(outVersion.String())
return t, nil
case *UnstructuredList:
t.SetAPIVersion(outVersion.String())
return t, nil
}
func (s *Scheme) UnsafeConvertToVersion(in Object, target GroupVersioner) (Object, error) {
return s.convertToVersion(false, in, target)
}
// convertToVersion handles conversion with an optional copy.
func (s *Scheme) convertToVersion(copy bool, in Object, target GroupVersioner) (Object, error) {
// determine the incoming kinds with as few allocations as possible.
t := reflect.TypeOf(in)
if t.Kind() != reflect.Ptr {
@ -556,64 +493,69 @@ func (s *Scheme) UnsafeConvertToVersion(in Object, outVersion unversioned.GroupV
}
kinds, ok := s.typeToGVK[t]
if !ok || len(kinds) == 0 {
return nil, fmt.Errorf("%v is not a registered type and cannot be converted into version %q", t, outVersion)
return nil, NewNotRegisteredErr(unversioned.GroupVersionKind{}, t)
}
// if the Go type is also registered to the destination kind, no conversion is necessary
for i := range kinds {
if kinds[i].Version == outVersion.Version && kinds[i].Group == outVersion.Group {
setTargetKind(in, kinds[i])
return in, nil
gvk, ok := target.KindForGroupVersionKinds(kinds)
if !ok {
// TODO: should this be a typed error?
return nil, fmt.Errorf("%v is not suitable for converting to %q", t, target)
}
// target wants to use the existing type, set kind and return (no conversion necessary)
for _, kind := range kinds {
if gvk == kind {
return copyAndSetTargetKind(copy, s, in, gvk)
}
}
// type is unversioned, no conversion necessary
// it should be possible to avoid this allocation
if unversionedKind, ok := s.unversionedTypes[t]; ok {
kind := unversionedKind
outKind := outVersion.WithKind(kind.Kind)
setTargetKind(in, outKind)
return in, nil
if gvk, ok := target.KindForGroupVersionKinds([]unversioned.GroupVersionKind{unversionedKind}); ok {
return copyAndSetTargetKind(copy, s, in, gvk)
}
return copyAndSetTargetKind(copy, s, in, unversionedKind)
}
// allocate a new object as the target using the target kind
// TODO: this should look in the target group version and find the first kind that matches, rather than the
// first kind registered in typeToGVK
kind := kinds[0]
kind.Version = outVersion.Version
kind.Group = outVersion.Group
out, err := s.New(kind)
out, err := s.New(gvk)
if err != nil {
return nil, err
}
// TODO: try to avoid the allocations here - in fast paths we are not likely to need these flags or meta
flags, meta := s.converter.DefaultMeta(t)
if copy {
copied, err := s.Copy(in)
if err != nil {
return nil, err
}
in = copied
}
flags, meta := s.generateConvertMeta(in)
meta.Context = target
if err := s.converter.Convert(in, out, flags, meta); err != nil {
return nil, err
}
setTargetKind(out, kind)
setTargetKind(out, gvk)
return out, nil
}
// generateConvertMeta constructs the meta value we pass to Convert.
func (s *Scheme) generateConvertMeta(srcGroupVersion, destGroupVersion unversioned.GroupVersion, in interface{}) (conversion.FieldMatchingFlags, *conversion.Meta) {
func (s *Scheme) generateConvertMeta(in interface{}) (conversion.FieldMatchingFlags, *conversion.Meta) {
return s.converter.DefaultMeta(reflect.TypeOf(in))
}
// setTargetVersion is deprecated and should be replaced by use of setTargetKind
func setTargetVersion(obj Object, raw *Scheme, gv unversioned.GroupVersion) {
if gv.Version == APIVersionInternal {
// internal is a special case
obj.GetObjectKind().SetGroupVersionKind(unversioned.GroupVersionKind{})
return
}
if gvks, _, _ := raw.ObjectKinds(obj); len(gvks) > 0 {
obj.GetObjectKind().SetGroupVersionKind(unversioned.GroupVersionKind{Group: gv.Group, Version: gv.Version, Kind: gvks[0].Kind})
} else {
obj.GetObjectKind().SetGroupVersionKind(unversioned.GroupVersionKind{Group: gv.Group, Version: gv.Version})
// copyAndSetTargetKind performs a conditional copy before returning the object, or an error if copy was not successful.
func copyAndSetTargetKind(copy bool, copier ObjectCopier, obj Object, kind unversioned.GroupVersionKind) (Object, error) {
if copy {
copied, err := copier.Copy(obj)
if err != nil {
return nil, err
}
obj = copied
}
setTargetKind(obj, kind)
return obj, nil
}
// setTargetKind sets the kind on an object, taking into account whether the target kind is the internal version.

271
pkg/runtime/scheme_test.go
View File

@ -18,6 +18,7 @@ package runtime_test
import (
"reflect"
"strings"
"testing"
"github.com/google/gofuzz"
@ -128,7 +129,7 @@ func TestScheme(t *testing.T) {
// Test Convert
external := &ExternalSimple{}
err = scheme.Convert(simple, external)
err = scheme.Convert(simple, external, nil)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}
@ -460,6 +461,16 @@ type ExternalInternalSame struct {
A TestType2 `json:"A,omitempty"`
}
type UnversionedType struct {
MyWeirdCustomEmbeddedVersionKindField `json:",inline"`
A string `json:"A,omitempty"`
}
type UnknownType struct {
MyWeirdCustomEmbeddedVersionKindField `json:",inline"`
A string `json:"A,omitempty"`
}
func (obj *MyWeirdCustomEmbeddedVersionKindField) GetObjectKind() unversioned.ObjectKind { return obj }
func (obj *MyWeirdCustomEmbeddedVersionKindField) SetGroupVersionKind(gvk unversioned.GroupVersionKind) {
obj.APIVersion, obj.ObjectKind = gvk.ToAPIVersionAndKind()
@ -500,6 +511,8 @@ var TestObjectFuzzer = fuzz.New().NilChance(.5).NumElements(1, 100).Funcs(
func GetTestScheme() *runtime.Scheme {
internalGV := unversioned.GroupVersion{Version: "__internal"}
externalGV := unversioned.GroupVersion{Version: "v1"}
alternateExternalGV := unversioned.GroupVersion{Group: "custom", Version: "v1"}
differentExternalGV := unversioned.GroupVersion{Group: "other", Version: "v2"}
s := runtime.NewScheme()
// Ordinarily, we wouldn't add TestType2, but because this is a test and
@ -511,6 +524,11 @@ func GetTestScheme() *runtime.Scheme {
s.AddKnownTypeWithName(externalGV.WithKind("TestType2"), &ExternalTestType2{})
s.AddKnownTypeWithName(internalGV.WithKind("TestType3"), &TestType1{})
s.AddKnownTypeWithName(externalGV.WithKind("TestType3"), &ExternalTestType1{})
s.AddKnownTypeWithName(externalGV.WithKind("TestType4"), &ExternalTestType1{})
s.AddKnownTypeWithName(alternateExternalGV.WithKind("TestType3"), &ExternalTestType1{})
s.AddKnownTypeWithName(alternateExternalGV.WithKind("TestType5"), &ExternalTestType1{})
s.AddKnownTypeWithName(differentExternalGV.WithKind("TestType1"), &ExternalTestType1{})
s.AddUnversionedTypes(externalGV, &UnversionedType{})
return s
}
@ -528,7 +546,7 @@ func TestKnownTypes(t *testing.T) {
}
}
func TestConvertToVersion(t *testing.T) {
func TestConvertToVersionBasic(t *testing.T) {
s := GetTestScheme()
tt := &TestType1{A: "I'm not a pointer object"}
other, err := s.ConvertToVersion(tt, unversioned.GroupVersion{Version: "v1"})
@ -537,13 +555,258 @@ func TestConvertToVersion(t *testing.T) {
}
converted, ok := other.(*ExternalTestType1)
if !ok {
t.Fatalf("Got wrong type")
t.Fatalf("Got wrong type: %T", other)
}
if tt.A != converted.A {
t.Fatalf("Failed to convert object correctly: %#v", converted)
}
}
type testGroupVersioner struct {
target unversioned.GroupVersionKind
ok bool
}
func (m testGroupVersioner) KindForGroupVersionKinds(kinds []unversioned.GroupVersionKind) (unversioned.GroupVersionKind, bool) {
return m.target, m.ok
}
func TestConvertToVersion(t *testing.T) {
testCases := []struct {
scheme *runtime.Scheme
in runtime.Object
gv runtime.GroupVersioner
same bool
out runtime.Object
errFn func(error) bool
}{
// errors if the type is not registered in the scheme
{
scheme: GetTestScheme(),
in: &UnknownType{},
errFn: func(err error) bool { return err != nil && runtime.IsNotRegisteredError(err) },
},
// errors if the group versioner returns no target
{
scheme: GetTestScheme(),
in: &ExternalTestType1{A: "test"},
gv: testGroupVersioner{},
errFn: func(err error) bool {
return err != nil && strings.Contains(err.Error(), "is not suitable for converting")
},
},
// converts to internal
{
scheme: GetTestScheme(),
in: &ExternalTestType1{A: "test"},
gv: unversioned.GroupVersion{Version: "__internal"},
out: &TestType1{A: "test"},
},
// prefers the first group version in the list
{
scheme: GetTestScheme(),
in: &ExternalTestType1{A: "test"},
gv: unversioned.GroupVersions{{Version: "__internal"}, {Version: "v1"}},
out: &TestType1{A: "test"},
},
// unversioned type returned as-is
{
scheme: GetTestScheme(),
in: &UnversionedType{A: "test"},
gv: unversioned.GroupVersions{{Version: "v1"}},
same: true,
out: &UnversionedType{
MyWeirdCustomEmbeddedVersionKindField: MyWeirdCustomEmbeddedVersionKindField{APIVersion: "v1", ObjectKind: "UnversionedType"},
A: "test",
},
},
// detected as already being in the target version
{
scheme: GetTestScheme(),
in: &ExternalTestType1{A: "test"},
gv: unversioned.GroupVersions{{Version: "v1"}},
same: true,
out: &ExternalTestType1{
MyWeirdCustomEmbeddedVersionKindField: MyWeirdCustomEmbeddedVersionKindField{APIVersion: "v1", ObjectKind: "TestType1"},
A: "test",
},
},
// detected as already being in the first target version
{
scheme: GetTestScheme(),
in: &ExternalTestType1{A: "test"},
gv: unversioned.GroupVersions{{Version: "v1"}, {Version: "__internal"}},
same: true,
out: &ExternalTestType1{
MyWeirdCustomEmbeddedVersionKindField: MyWeirdCustomEmbeddedVersionKindField{APIVersion: "v1", ObjectKind: "TestType1"},
A: "test",
},
},
// detected as already being in the first target version
{
scheme: GetTestScheme(),
in: &ExternalTestType1{A: "test"},
gv: unversioned.GroupVersions{{Version: "v1"}, {Version: "__internal"}},
same: true,
out: &ExternalTestType1{
MyWeirdCustomEmbeddedVersionKindField: MyWeirdCustomEmbeddedVersionKindField{APIVersion: "v1", ObjectKind: "TestType1"},
A: "test",
},
},
// the external type is registered in multiple groups, versions, and kinds, and can be targeted to all of them (1/3): different kind
{
scheme: GetTestScheme(),
in: &ExternalTestType1{A: "test"},
gv: testGroupVersioner{ok: true, target: unversioned.GroupVersionKind{Kind: "TestType3", Version: "v1"}},
same: true,
out: &ExternalTestType1{
MyWeirdCustomEmbeddedVersionKindField: MyWeirdCustomEmbeddedVersionKindField{APIVersion: "v1", ObjectKind: "TestType3"},
A: "test",
},
},
// the external type is registered in multiple groups, versions, and kinds, and can be targeted to all of them (2/3): different gv
{
scheme: GetTestScheme(),
in: &ExternalTestType1{A: "test"},
gv: testGroupVersioner{ok: true, target: unversioned.GroupVersionKind{Kind: "TestType3", Group: "custom", Version: "v1"}},
same: true,
out: &ExternalTestType1{
MyWeirdCustomEmbeddedVersionKindField: MyWeirdCustomEmbeddedVersionKindField{APIVersion: "custom/v1", ObjectKind: "TestType3"},
A: "test",
},
},
// the external type is registered in multiple groups, versions, and kinds, and can be targeted to all of them (3/3): different gvk
{
scheme: GetTestScheme(),
in: &ExternalTestType1{A: "test"},
gv: testGroupVersioner{ok: true, target: unversioned.GroupVersionKind{Group: "custom", Version: "v1", Kind: "TestType5"}},
same: true,
out: &ExternalTestType1{
MyWeirdCustomEmbeddedVersionKindField: MyWeirdCustomEmbeddedVersionKindField{APIVersion: "custom/v1", ObjectKind: "TestType5"},
A: "test",
},
},
// multi group versioner recognizes multiple groups and forces the output to a particular version, copies because version differs
{
scheme: GetTestScheme(),
in: &ExternalTestType1{A: "test"},
gv: runtime.NewMultiGroupVersioner(unversioned.GroupVersion{Group: "other", Version: "v2"}, unversioned.GroupKind{Group: "custom", Kind: "TestType3"}, unversioned.GroupKind{Kind: "TestType1"}),
out: &ExternalTestType1{
MyWeirdCustomEmbeddedVersionKindField: MyWeirdCustomEmbeddedVersionKindField{APIVersion: "other/v2", ObjectKind: "TestType1"},
A: "test",
},
},
// multi group versioner recognizes multiple groups and forces the output to a particular version, copies because version differs
{
scheme: GetTestScheme(),
in: &ExternalTestType1{A: "test"},
gv: runtime.NewMultiGroupVersioner(unversioned.GroupVersion{Group: "other", Version: "v2"}, unversioned.GroupKind{Kind: "TestType1"}, unversioned.GroupKind{Group: "custom", Kind: "TestType3"}),
out: &ExternalTestType1{
MyWeirdCustomEmbeddedVersionKindField: MyWeirdCustomEmbeddedVersionKindField{APIVersion: "other/v2", ObjectKind: "TestType1"},
A: "test",
},
},
// multi group versioner is unable to find a match when kind AND group don't match (there is no TestType1 kind in group "other", and no kind "TestType5" in the default group)
{
scheme: GetTestScheme(),
in: &TestType1{A: "test"},
gv: runtime.NewMultiGroupVersioner(unversioned.GroupVersion{Group: "custom", Version: "v1"}, unversioned.GroupKind{Group: "other"}, unversioned.GroupKind{Kind: "TestType5"}),
errFn: func(err error) bool {
return err != nil && strings.Contains(err.Error(), "is not suitable for converting")
},
},
// multi group versioner recognizes multiple groups and forces the output to a particular version, performs no copy
{
scheme: GetTestScheme(),
in: &ExternalTestType1{A: "test"},
gv: runtime.NewMultiGroupVersioner(unversioned.GroupVersion{Group: "", Version: "v1"}, unversioned.GroupKind{Group: "custom", Kind: "TestType3"}, unversioned.GroupKind{Kind: "TestType1"}),
same: true,
out: &ExternalTestType1{
MyWeirdCustomEmbeddedVersionKindField: MyWeirdCustomEmbeddedVersionKindField{APIVersion: "v1", ObjectKind: "TestType1"},
A: "test",
},
},
// multi group versioner recognizes multiple groups and forces the output to a particular version, performs no copy
{
scheme: GetTestScheme(),
in: &ExternalTestType1{A: "test"},
gv: runtime.NewMultiGroupVersioner(unversioned.GroupVersion{Group: "", Version: "v1"}, unversioned.GroupKind{Kind: "TestType1"}, unversioned.GroupKind{Group: "custom", Kind: "TestType3"}),
same: true,
out: &ExternalTestType1{
MyWeirdCustomEmbeddedVersionKindField: MyWeirdCustomEmbeddedVersionKindField{APIVersion: "v1", ObjectKind: "TestType1"},
A: "test",
},
},
// group versioner can choose a particular target kind for a given input when kind is the same across group versions
{
scheme: GetTestScheme(),
in: &TestType1{A: "test"},
gv: testGroupVersioner{ok: true, target: unversioned.GroupVersionKind{Version: "v1", Kind: "TestType3"}},
out: &ExternalTestType1{
MyWeirdCustomEmbeddedVersionKindField: MyWeirdCustomEmbeddedVersionKindField{APIVersion: "v1", ObjectKind: "TestType3"},
A: "test",
},
},
// group versioner can choose a different kind
{
scheme: GetTestScheme(),
in: &TestType1{A: "test"},
gv: testGroupVersioner{ok: true, target: unversioned.GroupVersionKind{Kind: "TestType5", Group: "custom", Version: "v1"}},
out: &ExternalTestType1{
MyWeirdCustomEmbeddedVersionKindField: MyWeirdCustomEmbeddedVersionKindField{APIVersion: "custom/v1", ObjectKind: "TestType5"},
A: "test",
},
},
}
for i, test := range testCases {
original, _ := test.scheme.DeepCopy(test.in)
out, err := test.scheme.ConvertToVersion(test.in, test.gv)
switch {
case test.errFn != nil:
if !test.errFn(err) {
t.Errorf("%d: unexpected error: %v", i, err)
}
continue
case err != nil:
t.Errorf("%d: unexpected error: %v", i, err)
continue
}
if out == test.in {
t.Errorf("%d: ConvertToVersion should always copy out: %#v", i, out)
continue
}
if test.same {
if !reflect.DeepEqual(original, test.in) {
t.Errorf("%d: unexpected mutation of input: %s", i, diff.ObjectReflectDiff(original, test.in))
continue
}
if !reflect.DeepEqual(out, test.out) {
t.Errorf("%d: unexpected out: %s", i, diff.ObjectReflectDiff(out, test.out))
continue
}
unsafe, err := test.scheme.UnsafeConvertToVersion(test.in, test.gv)
if err != nil {
t.Errorf("%d: unexpected error: %v", i, err)
continue
}
if !reflect.DeepEqual(unsafe, test.out) {
t.Errorf("%d: unexpected unsafe: %s", i, diff.ObjectReflectDiff(unsafe, test.out))
continue
}
if unsafe != test.in {
t.Errorf("%d: UnsafeConvertToVersion should return same object: %#v", i, unsafe)
continue
}
continue
}
if !reflect.DeepEqual(out, test.out) {
t.Errorf("%d: unexpected out: %s", i, diff.ObjectReflectDiff(out, test.out))
continue
}
}
}
func TestMetaValues(t *testing.T) {
internalGV := unversioned.GroupVersion{Group: "test.group", Version: "__internal"}
externalGV := unversioned.GroupVersion{Group: "test.group", Version: "externalVersion"}
@ -631,7 +894,7 @@ func TestMetaValuesUnregisteredConvert(t *testing.T) {
simple := &InternalSimple{TestString: "foo"}
external := &ExternalSimple{}
err = s.Convert(simple, external)
err = s.Convert(simple, external, nil)
if err != nil {
t.Fatalf("Unexpected error: %v", err)
}

84
pkg/runtime/serializer/codec_factory.go
View File

@ -17,8 +17,6 @@ limitations under the License.
package serializer
import (
"io"
"k8s.io/kubernetes/pkg/api/unversioned"
"k8s.io/kubernetes/pkg/runtime"
"k8s.io/kubernetes/pkg/runtime/serializer/json"
@ -188,13 +186,17 @@ func (f CodecFactory) SupportedStreamingMediaTypes() []string {
return f.streamingAccepts
}
// LegacyCodec encodes output to a given API version, and decodes output into the internal form from
// any recognized source. The returned codec will always encode output to JSON.
// LegacyCodec encodes output to a given API versions, and decodes output into the internal form from
// any recognized source. The returned codec will always encode output to JSON. If a type is not
// found in the list of versions an error will be returned.
//
// This method is deprecated - clients and servers should negotiate a serializer by mime-type and
// invoke CodecForVersions. Callers that need only to read data should use UniversalDecoder().
//
// TODO: make this call exist only in pkg/api, and initialize it with the set of default versions.
// All other callers will be forced to request a Codec directly.
func (f CodecFactory) LegacyCodec(version ...unversioned.GroupVersion) runtime.Codec {
return versioning.NewCodecForScheme(f.scheme, f.legacySerializer, f.universal, version, nil)
return versioning.NewCodecForScheme(f.scheme, f.legacySerializer, f.universal, unversioned.GroupVersions(version), runtime.InternalGroupVersioner)
}
// UniversalDeserializer can convert any stored data recognized by this factory into a Go object that satisfies
@ -211,25 +213,39 @@ func (f CodecFactory) UniversalDeserializer() runtime.Decoder {
// defaulting.
//
// TODO: the decoder will eventually be removed in favor of dealing with objects in their versioned form
// TODO: only accept a group versioner
func (f CodecFactory) UniversalDecoder(versions ...unversioned.GroupVersion) runtime.Decoder {
return f.CodecForVersions(nil, f.universal, nil, versions)
var versioner runtime.GroupVersioner
if len(versions) == 0 {
versioner = runtime.InternalGroupVersioner
} else {
versioner = unversioned.GroupVersions(versions)
}
return f.CodecForVersions(nil, f.universal, nil, versioner)
}
// CodecForVersions creates a codec with the provided serializer. If an object is decoded and its group is not in the list,
// it will default to runtime.APIVersionInternal. If encode is not specified for an object's group, the object is not
// converted. If encode or decode are nil, no conversion is performed.
func (f CodecFactory) CodecForVersions(encoder runtime.Encoder, decoder runtime.Decoder, encode []unversioned.GroupVersion, decode []unversioned.GroupVersion) runtime.Codec {
func (f CodecFactory) CodecForVersions(encoder runtime.Encoder, decoder runtime.Decoder, encode runtime.GroupVersioner, decode runtime.GroupVersioner) runtime.Codec {
// TODO: these are for backcompat, remove them in the future
if encode == nil {
encode = runtime.DisabledGroupVersioner
}
if decode == nil {
decode = runtime.InternalGroupVersioner
}
return versioning.NewCodecForScheme(f.scheme, encoder, decoder, encode, decode)
}
// DecoderToVersion returns a decoder that targets the provided group version.
func (f CodecFactory) DecoderToVersion(decoder runtime.Decoder, gv unversioned.GroupVersion) runtime.Decoder {
return f.CodecForVersions(nil, decoder, nil, []unversioned.GroupVersion{gv})
func (f CodecFactory) DecoderToVersion(decoder runtime.Decoder, gv runtime.GroupVersioner) runtime.Decoder {
return f.CodecForVersions(nil, decoder, nil, gv)
}
// EncoderForVersion returns an encoder that targets the provided group version.
func (f CodecFactory) EncoderForVersion(encoder runtime.Encoder, gv unversioned.GroupVersion) runtime.Encoder {
return f.CodecForVersions(encoder, nil, []unversioned.GroupVersion{gv}, nil)
func (f CodecFactory) EncoderForVersion(encoder runtime.Encoder, gv runtime.GroupVersioner) runtime.Encoder {
return f.CodecForVersions(encoder, nil, gv, nil)
}
// SerializerForMediaType returns a serializer that matches the provided RFC2046 mediaType, or false if no such
@ -317,48 +333,16 @@ type DirectCodecFactory struct {
}
// EncoderForVersion returns an encoder that does not do conversion. gv is ignored.
func (f DirectCodecFactory) EncoderForVersion(serializer runtime.Encoder, gv unversioned.GroupVersion) runtime.Encoder {
return DirectCodec{
runtime.NewCodec(serializer, nil),
f.CodecFactory.scheme,
func (f DirectCodecFactory) EncoderForVersion(serializer runtime.Encoder, _ runtime.GroupVersioner) runtime.Encoder {
return versioning.DirectEncoder{
Encoder: serializer,
ObjectTyper: f.CodecFactory.scheme,
}
}
// DecoderToVersion returns an decoder that does not do conversion. gv is ignored.
func (f DirectCodecFactory) DecoderToVersion(serializer runtime.Decoder, gv unversioned.GroupVersion) runtime.Decoder {
return DirectCodec{
runtime.NewCodec(nil, serializer),
nil,
func (f DirectCodecFactory) DecoderToVersion(serializer runtime.Decoder, _ runtime.GroupVersioner) runtime.Decoder {
return versioning.DirectDecoder{
Decoder: serializer,
}
}
// DirectCodec is a codec that does not do conversion. It sets the gvk during serialization, and removes the gvk during deserialization.
type DirectCodec struct {
runtime.Serializer
runtime.ObjectTyper
}
// EncodeToStream does not do conversion. It sets the gvk during serialization. overrides are ignored.
func (c DirectCodec) Encode(obj runtime.Object, stream io.Writer) error {
gvks, _, err := c.ObjectTyper.ObjectKinds(obj)
if err != nil {
return err
}
kind := obj.GetObjectKind()
oldGVK := kind.GroupVersionKind()
kind.SetGroupVersionKind(gvks[0])
err = c.Serializer.Encode(obj, stream)
kind.SetGroupVersionKind(oldGVK)
return err
}
// Decode does not do conversion. It removes the gvk during deserialization.
func (c DirectCodec) Decode(data []byte, defaults *unversioned.GroupVersionKind, into runtime.Object) (runtime.Object, *unversioned.GroupVersionKind, error) {
obj, gvk, err := c.Serializer.Decode(data, defaults, into)
if obj != nil {
kind := obj.GetObjectKind()
// clearing the gvk is just a convention of a codec
kind.SetGroupVersionKind(unversioned.GroupVersionKind{})
}
return obj, gvk, err
}

8
pkg/runtime/serializer/codec_test.go
View File

@ -254,7 +254,7 @@ func TestVersionedEncoding(t *testing.T) {
cf := newCodecFactory(s, newSerializersForScheme(s, testMetaFactory{}))
encoder, _ := cf.SerializerForFileExtension("json")
codec := cf.CodecForVersions(encoder, nil, []unversioned.GroupVersion{{Version: "v2"}}, nil)
codec := cf.CodecForVersions(encoder, nil, unversioned.GroupVersion{Version: "v2"}, nil)
out, err := runtime.Encode(codec, &TestType1{})
if err != nil {
t.Fatal(err)
@ -263,19 +263,19 @@ func TestVersionedEncoding(t *testing.T) {
t.Fatal(string(out))
}
codec = cf.CodecForVersions(encoder, nil, []unversioned.GroupVersion{{Version: "v3"}}, nil)
codec = cf.CodecForVersions(encoder, nil, unversioned.GroupVersion{Version: "v3"}, nil)
_, err = runtime.Encode(codec, &TestType1{})
if err == nil {
t.Fatal(err)
}
// unversioned encode with no versions is written directly to wire
codec = cf.CodecForVersions(encoder, nil, nil, nil)
codec = cf.CodecForVersions(encoder, nil, runtime.InternalGroupVersioner, nil)
out, err = runtime.Encode(codec, &TestType1{})
if err != nil {
t.Fatal(err)
}
if string(out) != `{"myVersionKey":"__internal","myKindKey":"TestType1"}`+"\n" {
if string(out) != `{}`+"\n" {
t.Fatal(string(out))
}
}

5
pkg/runtime/serializer/negotiated_codec.go
View File

@ -17,7 +17,6 @@ limitations under the License.
package serializer
import (
"k8s.io/kubernetes/pkg/api/unversioned"
"k8s.io/kubernetes/pkg/runtime"
)
@ -48,10 +47,10 @@ func (n *negotiatedSerializerWrapper) StreamingSerializerForMediaType(mediaType
return n.streamInfo, true
}
func (n *negotiatedSerializerWrapper) EncoderForVersion(e runtime.Encoder, _ unversioned.GroupVersion) runtime.Encoder {
func (n *negotiatedSerializerWrapper) EncoderForVersion(e runtime.Encoder, _ runtime.GroupVersioner) runtime.Encoder {
return e
}
func (n *negotiatedSerializerWrapper) DecoderToVersion(d runtime.Decoder, _gv unversioned.GroupVersion) runtime.Decoder {
func (n *negotiatedSerializerWrapper) DecoderToVersion(d runtime.Decoder, _gv runtime.GroupVersioner) runtime.Decoder {
return d
}

207
pkg/runtime/serializer/versioning/versioning.go
View File

@ -17,59 +17,20 @@ limitations under the License.
package versioning
import (
"fmt"
"io"
"k8s.io/kubernetes/pkg/api/unversioned"
"k8s.io/kubernetes/pkg/runtime"
)
// EnableCrossGroupDecoding modifies the given decoder in place, if it is a codec
// from this package. It allows objects from one group to be auto-decoded into
// another group. 'destGroup' must already exist in the codec.
// TODO: this is an encapsulation violation and should be refactored
func EnableCrossGroupDecoding(d runtime.Decoder, sourceGroup, destGroup string) error {
internal, ok := d.(*codec)
if !ok {
return fmt.Errorf("unsupported decoder type")
}
dest, ok := internal.decodeVersion[destGroup]
if !ok {
return fmt.Errorf("group %q is not a possible destination group in the given codec", destGroup)
}
internal.decodeVersion[sourceGroup] = dest
return nil
}
// EnableCrossGroupEncoding modifies the given encoder in place, if it is a codec
// from this package. It allows objects from one group to be auto-decoded into
// another group. 'destGroup' must already exist in the codec.
// TODO: this is an encapsulation violation and should be refactored
func EnableCrossGroupEncoding(e runtime.Encoder, sourceGroup, destGroup string) error {
internal, ok := e.(*codec)
if !ok {
return fmt.Errorf("unsupported encoder type")
}
dest, ok := internal.encodeVersion[destGroup]
if !ok {
return fmt.Errorf("group %q is not a possible destination group in the given codec", destGroup)
}
internal.encodeVersion[sourceGroup] = dest
return nil
}
// NewCodecForScheme is a convenience method for callers that are using a scheme.
func NewCodecForScheme(
// TODO: I should be a scheme interface?
scheme *runtime.Scheme,
encoder runtime.Encoder,
decoder runtime.Decoder,
encodeVersion []unversioned.GroupVersion,
decodeVersion []unversioned.GroupVersion,
encodeVersion runtime.GroupVersioner,
decodeVersion runtime.GroupVersioner,
) runtime.Codec {
return NewCodec(encoder, decoder, runtime.UnsafeObjectConvertor(scheme), scheme, scheme, scheme, encodeVersion, decodeVersion)
}
@ -84,8 +45,8 @@ func NewCodec(
creater runtime.ObjectCreater,
copier runtime.ObjectCopier,
typer runtime.ObjectTyper,
encodeVersion []unversioned.GroupVersion,
decodeVersion []unversioned.GroupVersion,
encodeVersion runtime.GroupVersioner,
decodeVersion runtime.GroupVersioner,
) runtime.Codec {
internal := &codec{
encoder: encoder,
@ -94,33 +55,10 @@ func NewCodec(
creater: creater,
copier: copier,
typer: typer,
}
if encodeVersion != nil {
internal.encodeVersion = make(map[string]unversioned.GroupVersion)
for _, v := range encodeVersion {
// first one for a group wins. This is consistent with best to worst order throughout the codebase
if _, ok := internal.encodeVersion[v.Group]; ok {
continue
}
internal.encodeVersion[v.Group] = v
}
if len(internal.encodeVersion) == 1 {
for _, v := range internal.encodeVersion {
internal.preferredEncodeVersion = []unversioned.GroupVersion{v}
}
}
}
if decodeVersion != nil {
internal.decodeVersion = make(map[string]unversioned.GroupVersion)
for _, v := range decodeVersion {
// first one for a group wins. This is consistent with best to worst order throughout the codebase
if _, ok := internal.decodeVersion[v.Group]; ok {
continue
}
internal.decodeVersion[v.Group] = v
}
}
encodeVersion: encodeVersion,
decodeVersion: decodeVersion,
}
return internal
}
@ -132,10 +70,8 @@ type codec struct {
copier runtime.ObjectCopier
typer runtime.ObjectTyper
encodeVersion map[string]unversioned.GroupVersion
decodeVersion map[string]unversioned.GroupVersion
preferredEncodeVersion []unversioned.GroupVersion
encodeVersion runtime.GroupVersioner
decodeVersion runtime.GroupVersioner
}
// Decode attempts a decode of the object, then tries to convert it to the internal version. If into is provided and the decoding is
@ -152,6 +88,12 @@ func (c *codec) Decode(data []byte, defaultGVK *unversioned.GroupVersionKind, in
return nil, gvk, err
}
if d, ok := obj.(runtime.NestedObjectDecoder); ok {
if err := d.DecodeNestedObjects(DirectDecoder{c.decoder}); err != nil {
return nil, gvk, err
}
}
// if we specify a target, use generic conversion.
if into != nil {
if into == obj {
@ -160,7 +102,7 @@ func (c *codec) Decode(data []byte, defaultGVK *unversioned.GroupVersionKind, in
}
return into, gvk, nil
}
if err := c.convertor.Convert(obj, into); err != nil {
if err := c.convertor.Convert(obj, into, c.decodeVersion); err != nil {
return nil, gvk, err
}
if isVersioned {
@ -170,37 +112,7 @@ func (c *codec) Decode(data []byte, defaultGVK *unversioned.GroupVersionKind, in
return into, gvk, nil
}
// invoke a version conversion
group := gvk.Group
if defaultGVK != nil {
group = defaultGVK.Group
}
var targetGV unversioned.GroupVersion
if c.decodeVersion == nil {
// convert to internal by default
targetGV.Group = group
targetGV.Version = runtime.APIVersionInternal
} else {
gv, ok := c.decodeVersion[group]
if !ok {
// unknown objects are left in their original version
if isVersioned {
versioned.Objects = []runtime.Object{obj}
return versioned, gvk, nil
}
return obj, gvk, nil
}
targetGV = gv
}
if gvk.GroupVersion() == targetGV {
if isVersioned {
versioned.Objects = []runtime.Object{obj}
return versioned, gvk, nil
}
return obj, gvk, nil
}
// Convert if needed.
if isVersioned {
// create a copy, because ConvertToVersion does not guarantee non-mutation of objects
copied, err := c.copier.Copy(obj)
@ -209,14 +121,14 @@ func (c *codec) Decode(data []byte, defaultGVK *unversioned.GroupVersionKind, in
}
versioned.Objects = []runtime.Object{copied}
}
// Convert if needed.
out, err := c.convertor.ConvertToVersion(obj, targetGV)
out, err := c.convertor.ConvertToVersion(obj, c.decodeVersion)
if err != nil {
return nil, gvk, err
}
if isVersioned {
versioned.Objects = append(versioned.Objects, out)
if versioned.Last() != out {
versioned.Objects = append(versioned.Objects, out)
}
return versioned, gvk, nil
}
return out, gvk, nil
@ -225,51 +137,86 @@ func (c *codec) Decode(data []byte, defaultGVK *unversioned.GroupVersionKind, in
// Encode ensures the provided object is output in the appropriate group and version, invoking
// conversion if necessary. Unversioned objects (according to the ObjectTyper) are output as is.
func (c *codec) Encode(obj runtime.Object, w io.Writer) error {
if _, ok := obj.(*runtime.Unknown); ok {
switch obj.(type) {
case *runtime.Unknown, *runtime.Unstructured, *runtime.UnstructuredList:
return c.encoder.Encode(obj, w)
}
gvks, isUnversioned, err := c.typer.ObjectKinds(obj)
if err != nil {
return err
}
gvk := gvks[0]
if c.encodeVersion == nil || isUnversioned {
if e, ok := obj.(runtime.NestedObjectEncoder); ok {
if err := e.EncodeNestedObjects(DirectEncoder{Encoder: c.encoder, ObjectTyper: c.typer}); err != nil {
return err
}
}
objectKind := obj.GetObjectKind()
old := objectKind.GroupVersionKind()
objectKind.SetGroupVersionKind(gvk)
objectKind.SetGroupVersionKind(gvks[0])
err = c.encoder.Encode(obj, w)
objectKind.SetGroupVersionKind(old)
return err
}
targetGV, ok := c.encodeVersion[gvk.Group]
// attempt a conversion to the sole encode version
if !ok && c.preferredEncodeVersion != nil {
ok = true
targetGV = c.preferredEncodeVersion[0]
}
// if no fallback is available, error
if !ok {
return fmt.Errorf("the codec does not recognize group %q for kind %q and cannot encode it", gvk.Group, gvk.Kind)
}
// Perform a conversion if necessary
objectKind := obj.GetObjectKind()
old := objectKind.GroupVersionKind()
out, err := c.convertor.ConvertToVersion(obj, targetGV)
out, err := c.convertor.ConvertToVersion(obj, c.encodeVersion)
if err != nil {
if ok {
return err
}
if e, ok := out.(runtime.NestedObjectEncoder); ok {
if err := e.EncodeNestedObjects(DirectEncoder{Encoder: c.encoder, ObjectTyper: c.typer}); err != nil {
return err
}
} else {
obj = out
}
// Conversion is responsible for setting the proper group, version, and kind onto the outgoing object
err = c.encoder.Encode(obj, w)
err = c.encoder.Encode(out, w)
// restore the old GVK, in case conversion returned the same object
objectKind.SetGroupVersionKind(old)
return err
}
// DirectEncoder serializes an object and ensures the GVK is set.
type DirectEncoder struct {
runtime.Encoder
runtime.ObjectTyper
}
// Encode does not do conversion. It sets the gvk during serialization.
func (e DirectEncoder) Encode(obj runtime.Object, stream io.Writer) error {
gvks, _, err := e.ObjectTyper.ObjectKinds(obj)
if err != nil {
if runtime.IsNotRegisteredError(err) {
return e.Encoder.Encode(obj, stream)
}
return err
}
kind := obj.GetObjectKind()
oldGVK := kind.GroupVersionKind()
kind.SetGroupVersionKind(gvks[0])
err = e.Encoder.Encode(obj, stream)
kind.SetGroupVersionKind(oldGVK)
return err
}
// DirectDecoder clears the group version kind of a deserialized object.
type DirectDecoder struct {
runtime.Decoder
}
// Decode does not do conversion. It removes the gvk during deserialization.
func (d DirectDecoder) Decode(data []byte, defaults *unversioned.GroupVersionKind, into runtime.Object) (runtime.Object, *unversioned.GroupVersionKind, error) {
obj, gvk, err := d.Decoder.Decode(data, defaults, into)
if obj != nil {
kind := obj.GetObjectKind()
// clearing the gvk is just a convention of a codec
kind.SetGroupVersionKind(unversioned.GroupVersionKind{})
}
return obj, gvk, err
}

99
pkg/runtime/serializer/versioning/versioning_test.go
View File

@ -19,6 +19,7 @@ package versioning
import (
"fmt"
"io"
"io/ioutil"
"reflect"
"testing"
@ -37,6 +38,60 @@ func (d *testDecodable) GetObjectKind() unversioned.ObjectKind {
func (d *testDecodable) SetGroupVersionKind(gvk unversioned.GroupVersionKind) { d.gvk = gvk }
func (d *testDecodable) GroupVersionKind() unversioned.GroupVersionKind { return d.gvk }
type testNestedDecodable struct {
Other string
Value int `json:"value"`
gvk unversioned.GroupVersionKind
nestedCalled bool
nestedErr error
}
func (d *testNestedDecodable) GetObjectKind() unversioned.ObjectKind { return d }
func (d *testNestedDecodable) SetGroupVersionKind(gvk unversioned.GroupVersionKind) { d.gvk = gvk }
func (d *testNestedDecodable) GroupVersionKind() unversioned.GroupVersionKind { return d.gvk }
func (d *testNestedDecodable) EncodeNestedObjects(e runtime.Encoder) error {
d.nestedCalled = true
return d.nestedErr
}
func (d *testNestedDecodable) DecodeNestedObjects(_ runtime.Decoder) error {
d.nestedCalled = true
return d.nestedErr
}
func TestNestedDecode(t *testing.T) {
n := &testNestedDecodable{nestedErr: fmt.Errorf("unable to decode")}
decoder := &mockSerializer{obj: n}
codec := NewCodec(nil, decoder, nil, nil, nil, nil, nil, nil)
if _, _, err := codec.Decode([]byte(`{}`), nil, n); err != n.nestedErr {
t.Errorf("unexpected error: %v", err)
}
if !n.nestedCalled {
t.Errorf("did not invoke nested decoder")
}
}
func TestNestedEncode(t *testing.T) {
n := &testNestedDecodable{nestedErr: fmt.Errorf("unable to decode")}
n2 := &testNestedDecodable{nestedErr: fmt.Errorf("unable to decode 2")}
encoder := &mockSerializer{obj: n}
codec := NewCodec(
encoder, nil,
&checkConvertor{obj: n2, groupVersion: unversioned.GroupVersion{Group: "other"}},
nil, nil,
&mockTyper{gvks: []unversioned.GroupVersionKind{{Kind: "test"}}},
unversioned.GroupVersion{Group: "other"}, nil,
)
if err := codec.Encode(n, ioutil.Discard); err != n2.nestedErr {
t.Errorf("unexpected error: %v", err)
}
if n.nestedCalled || !n2.nestedCalled {
t.Errorf("did not invoke correct nested decoder")
}
}
func TestDecode(t *testing.T) {
gvk1 := &unversioned.GroupVersionKind{Kind: "Test", Group: "other", Version: "blah"}
decodable1 := &testDecodable{}
@ -53,7 +108,7 @@ func TestDecode(t *testing.T) {
yaml bool
pretty bool
encodes, decodes []unversioned.GroupVersion
encodes, decodes runtime.GroupVersioner
defaultGVK *unversioned.GroupVersionKind
into runtime.Object
@ -67,12 +122,14 @@ func TestDecode(t *testing.T) {
serializer: &mockSerializer{actual: gvk1},
convertor: &checkConvertor{groupVersion: unversioned.GroupVersion{Group: "other", Version: "__internal"}},
expectedGVK: gvk1,
decodes: unversioned.GroupVersion{Group: "other", Version: "__internal"},
},
{
serializer: &mockSerializer{actual: gvk1, obj: decodable1},
convertor: &checkConvertor{in: decodable1, obj: decodable2, groupVersion: unversioned.GroupVersion{Group: "other", Version: "__internal"}},
expectedGVK: gvk1,
sameObject: decodable2,
decodes: unversioned.GroupVersion{Group: "other", Version: "__internal"},
},
// defaultGVK.Group is allowed to force a conversion to the destination group
{
@ -81,6 +138,7 @@ func TestDecode(t *testing.T) {
convertor: &checkConvertor{in: decodable1, obj: decodable2, groupVersion: unversioned.GroupVersion{Group: "force", Version: "__internal"}},
expectedGVK: gvk1,
sameObject: decodable2,
decodes: unversioned.GroupVersion{Group: "force", Version: "__internal"},
},
// uses direct conversion for into when objects differ
{
@ -121,6 +179,7 @@ func TestDecode(t *testing.T) {
convertor: &checkConvertor{in: decodable1, obj: decodable2, groupVersion: unversioned.GroupVersion{Group: "other", Version: "__internal"}},
expectedGVK: gvk1,
expectedObject: &runtime.VersionedObjects{Objects: []runtime.Object{decodable1, decodable2}},
decodes: unversioned.GroupVersion{Group: "other", Version: "__internal"},
},
{
into: &runtime.VersionedObjects{Objects: []runtime.Object{}},
@ -130,38 +189,45 @@ func TestDecode(t *testing.T) {
convertor: &checkConvertor{in: decodable1, obj: decodable2, groupVersion: unversioned.GroupVersion{Group: "other", Version: "__internal"}},
expectedGVK: gvk1,
expectedObject: &runtime.VersionedObjects{Objects: []runtime.Object{decodable1, decodable2}},
decodes: unversioned.GroupVersion{Group: "other", Version: "__internal"},
},
// decode into the same version as the serialized object
{
decodes: []unversioned.GroupVersion{gvk1.GroupVersion()},
decodes: unversioned.GroupVersions{gvk1.GroupVersion()},
serializer: &mockSerializer{actual: gvk1, obj: decodable1},
convertor: &checkConvertor{in: decodable1, obj: decodable1, groupVersion: unversioned.GroupVersions{{Group: "other", Version: "blah"}}},
expectedGVK: gvk1,
expectedObject: decodable1,
},
{
into: &runtime.VersionedObjects{Objects: []runtime.Object{}},
decodes: []unversioned.GroupVersion{gvk1.GroupVersion()},
decodes: unversioned.GroupVersions{gvk1.GroupVersion()},
serializer: &mockSerializer{actual: gvk1, obj: decodable1},
convertor: &checkConvertor{in: decodable1, obj: decodable1, groupVersion: unversioned.GroupVersions{{Group: "other", Version: "blah"}}},
copier: &checkCopy{in: decodable1, obj: decodable1, err: nil},
expectedGVK: gvk1,
expectedObject: &runtime.VersionedObjects{Objects: []runtime.Object{decodable1}},
},
// codec with non matching version skips conversion altogether
{
decodes: []unversioned.GroupVersion{{Group: "something", Version: "else"}},
decodes: unversioned.GroupVersions{{Group: "something", Version: "else"}},
serializer: &mockSerializer{actual: gvk1, obj: decodable1},
convertor: &checkConvertor{in: decodable1, obj: decodable1, groupVersion: unversioned.GroupVersions{{Group: "something", Version: "else"}}},
expectedGVK: gvk1,
expectedObject: decodable1,
},
{
into: &runtime.VersionedObjects{Objects: []runtime.Object{}},
decodes: []unversioned.GroupVersion{{Group: "something", Version: "else"}},
decodes: unversioned.GroupVersions{{Group: "something", Version: "else"}},
serializer: &mockSerializer{actual: gvk1, obj: decodable1},
convertor: &checkConvertor{in: decodable1, obj: decodable1, groupVersion: unversioned.GroupVersions{{Group: "something", Version: "else"}}},
copier: &checkCopy{in: decodable1, obj: decodable1, err: nil},
expectedGVK: gvk1,
expectedObject: &runtime.VersionedObjects{Objects: []runtime.Object{decodable1}},
},
@ -228,11 +294,11 @@ func (c *checkCopy) Copy(obj runtime.Object) (runtime.Object, error) {
type checkConvertor struct {
err error
in, obj runtime.Object
groupVersion unversioned.GroupVersion
groupVersion runtime.GroupVersioner
directConvert bool
}
func (c *checkConvertor) Convert(in, out interface{}) error {
func (c *checkConvertor) Convert(in, out, context interface{}) error {
if !c.directConvert {
return fmt.Errorf("unexpected call to Convert")
}
@ -244,15 +310,15 @@ func (c *checkConvertor) Convert(in, out interface{}) error {
}
return c.err
}
func (c *checkConvertor) ConvertToVersion(in runtime.Object, outVersion unversioned.GroupVersion) (out runtime.Object, err error) {
func (c *checkConvertor) ConvertToVersion(in runtime.Object, outVersion runtime.GroupVersioner) (out runtime.Object, err error) {
if c.directConvert {
return nil, fmt.Errorf("unexpected call to ConvertToVersion")
}
if c.in != nil && c.in != in {
return nil, fmt.Errorf("unexpected in: %s", in)
}
if c.groupVersion != outVersion {
return nil, fmt.Errorf("unexpected outversion: %s", outVersion)
if !reflect.DeepEqual(c.groupVersion, outVersion) {
return nil, fmt.Errorf("unexpected outversion: %s (%s)", outVersion, c.groupVersion)
}
return c.obj, c.err
}
@ -289,10 +355,15 @@ func (c *mockCreater) New(kind unversioned.GroupVersionKind) (runtime.Object, er
}
type mockTyper struct {
gvk *unversioned.GroupVersionKind
err error
gvks []unversioned.GroupVersionKind
unversioned bool
err error
}
func (t *mockTyper) ObjectKind(obj runtime.Object) (*unversioned.GroupVersionKind, bool, error) {
return t.gvk, false, t.err
func (t *mockTyper) ObjectKinds(obj runtime.Object) ([]unversioned.GroupVersionKind, bool, error) {
return t.gvks, t.unversioned, t.err
}
func (t *mockTyper) Recognizes(_ unversioned.GroupVersionKind) bool {
return true
}

13
pkg/runtime/unstructured.go
View File

@ -168,7 +168,7 @@ func (s unstructuredJSONScheme) decodeToList(data []byte, list *UnstructuredList
// sane implementation for APIs that require an object converter.
type UnstructuredObjectConverter struct{}
func (UnstructuredObjectConverter) Convert(in, out interface{}) error {
func (UnstructuredObjectConverter) Convert(in, out, context interface{}) error {
unstructIn, ok := in.(*Unstructured)
if !ok {
return fmt.Errorf("input type %T in not valid for unstructured conversion", in)
@ -187,9 +187,14 @@ func (UnstructuredObjectConverter) Convert(in, out interface{}) error {
return nil
}
func (UnstructuredObjectConverter) ConvertToVersion(in Object, outVersion unversioned.GroupVersion) (Object, error) {
if gvk := in.GetObjectKind().GroupVersionKind(); gvk.GroupVersion() != outVersion {
return nil, errors.New("unstructured converter cannot convert versions")
func (UnstructuredObjectConverter) ConvertToVersion(in Object, target GroupVersioner) (Object, error) {
if kind := in.GetObjectKind().GroupVersionKind(); !kind.IsEmpty() {
gvk, ok := target.KindForGroupVersionKinds([]unversioned.GroupVersionKind{kind})
if !ok {
// TODO: should this be a typed error?
return nil, fmt.Errorf("%v is unstructured and is not suitable for converting to %q", kind, target)
}
in.GetObjectKind().SetGroupVersionKind(gvk)
}
return in, nil
}

19
pkg/runtime/unversioned_test.go
View File

@ -30,14 +30,13 @@ import (
"k8s.io/kubernetes/pkg/runtime"
)
var status = &unversioned.Status{
Status: unversioned.StatusFailure,
Code: 200,
Reason: unversioned.StatusReasonUnknown,
Message: "",
}
func TestV1EncodeDecodeStatus(t *testing.T) {
status := &unversioned.Status{
Status: unversioned.StatusFailure,
Code: 200,
Reason: unversioned.StatusReasonUnknown,
Message: "",
}
v1Codec := testapi.Default.Codec()
@ -65,6 +64,12 @@ func TestV1EncodeDecodeStatus(t *testing.T) {
}
func TestExperimentalEncodeDecodeStatus(t *testing.T) {
status := &unversioned.Status{
Status: unversioned.StatusFailure,
Code: 200,
Reason: unversioned.StatusReasonUnknown,
Message: "",
}
// TODO: caesarxuchao: use the testapi.Extensions.Codec() once the PR that
// moves experimental from v1 to v1beta1 got merged.
expCodec := api.Codecs.LegacyCodec(extensions.SchemeGroupVersion)

2
plugin/cmd/kube-scheduler/app/options/options.go
View File

@ -41,7 +41,7 @@ type SchedulerServer struct {
// NewSchedulerServer creates a new SchedulerServer with default parameters
func NewSchedulerServer() *SchedulerServer {
config := componentconfig.KubeSchedulerConfiguration{}
api.Scheme.Convert(&v1alpha1.KubeSchedulerConfiguration{}, &config)
api.Scheme.Convert(&v1alpha1.KubeSchedulerConfiguration{}, &config, nil)
config.LeaderElection.LeaderElect = true
s := SchedulerServer{
KubeSchedulerConfiguration: config,

4
plugin/pkg/scheduler/api/latest/latest.go
View File

@ -47,7 +47,7 @@ func init() {
api.Scheme,
jsonSerializer,
jsonSerializer,
[]unversioned.GroupVersion{{Version: Version}},
[]unversioned.GroupVersion{{Version: runtime.APIVersionInternal}},
unversioned.GroupVersion{Version: Version},
runtime.InternalGroupVersioner,
)
}

9
test/integration/framework/serializer.go
View File

@ -17,7 +17,6 @@ limitations under the License.
package framework
import (
"k8s.io/kubernetes/pkg/api/unversioned"
"k8s.io/kubernetes/pkg/runtime"
"k8s.io/kubernetes/pkg/runtime/serializer/versioning"
)
@ -58,10 +57,10 @@ func (s *wrappedSerializer) UniversalDeserializer() runtime.Decoder {
return s.serializer
}
func (s *wrappedSerializer) EncoderForVersion(encoder runtime.Encoder, gv unversioned.GroupVersion) runtime.Encoder {
return versioning.NewCodec(encoder, nil, s.scheme, s.scheme, s.scheme, s.scheme, []unversioned.GroupVersion{gv}, nil)
func (s *wrappedSerializer) EncoderForVersion(encoder runtime.Encoder, gv runtime.GroupVersioner) runtime.Encoder {
return versioning.NewCodec(encoder, nil, s.scheme, s.scheme, s.scheme, s.scheme, gv, nil)
}
func (s *wrappedSerializer) DecoderToVersion(decoder runtime.Decoder, gv unversioned.GroupVersion) runtime.Decoder {
return versioning.NewCodec(nil, decoder, s.scheme, s.scheme, s.scheme, s.scheme, nil, []unversioned.GroupVersion{gv})
func (s *wrappedSerializer) DecoderToVersion(decoder runtime.Decoder, gv runtime.GroupVersioner) runtime.Decoder {
return versioning.NewCodec(nil, decoder, s.scheme, s.scheme, s.scheme, s.scheme, nil, gv)
}