// mergeGroupMeta takes an lhs and an rhs GroupMeta, then builds a resulting GroupMeta that contains the
// merged information. Order of merging matters: lhs wins.
func mergeGroupMeta(lhs, rhs apimachinery.GroupMeta) apimachinery.GroupMeta {
merged := apimachinery.GroupMeta{}
merged.GroupVersion = lhs.GroupVersion
merged.SelfLinker = lhs.SelfLinker
knownGVs := sets.String{}
for _, lhsGV := range lhs.GroupVersions {
knownGVs.Insert(lhsGV.String())
merged.GroupVersions = append(merged.GroupVersions, lhsGV)
}
for _, rhsGV := range lhs.GroupVersions {
if knownGVs.Has(rhsGV.String()) {
continue
}
merged.GroupVersions = append(merged.GroupVersions, rhsGV)
}
merged.RESTMapper = meta.MultiRESTMapper(append([]meta.RESTMapper{}, lhs.RESTMapper, rhs.RESTMapper))
merged.InterfacesFor = func(version unversioned.GroupVersion) (*meta.VersionInterfaces, error) {
if ret, err := lhs.InterfacesFor(version); err == nil {
return ret, nil
}
return rhs.InterfacesFor(version)
}
return merged
}
func (s *GenericAPIServer) newAPIGroupVersion(groupMeta apimachinery.GroupMeta, groupVersion unversioned.GroupVersion) (*apiserver.APIGroupVersion, error) {
versionInterface, err := groupMeta.InterfacesFor(groupVersion)
if err != nil {
return nil, err
}
return &apiserver.APIGroupVersion{
RequestInfoResolver: s.NewRequestInfoResolver(),
Creater: api.Scheme,
Convertor: api.Scheme,
Typer: api.Scheme,
GroupVersion: groupVersion,
Linker: groupMeta.SelfLinker,
Mapper: groupMeta.RESTMapper,
Codec: versionInterface.Codec,
Admit: s.AdmissionControl,
Context: s.RequestContextMapper,
MinRequestTimeout: s.MinRequestTimeout,
}, nil
}