func newExternalScheme() (*runtime.Scheme, meta.RESTMapper, runtime.Codec) {
	scheme := runtime.NewScheme()
	scheme.AddKnownTypeWithName("", "Type", &internalType{})
	scheme.AddKnownTypeWithName("unlikelyversion", "Type", &externalType{})
	//This tests that kubectl will not confuse the external scheme with the internal scheme, even when they accidentally have versions of the same name.
	scheme.AddKnownTypeWithName(testapi.Version(), "Type", &ExternalType2{})

	codec := runtime.CodecFor(scheme, "unlikelyversion")
	validVersion := testapi.Version()
	mapper := meta.NewDefaultRESTMapper([]string{"unlikelyversion", validVersion}, func(version string) (*meta.VersionInterfaces, bool) {
		return &meta.VersionInterfaces{
			Codec:            runtime.CodecFor(scheme, version),
			ObjectConvertor:  scheme,
			MetadataAccessor: meta.NewAccessor(),
		}, (version == validVersion || version == "unlikelyversion")
	})
	for _, version := range []string{"unlikelyversion", validVersion} {
		for kind := range scheme.KnownTypes(version) {
			mixedCase := false
			scope := meta.RESTScopeNamespace
			mapper.Add(scope, kind, version, mixedCase)
		}
	}

	return scheme, mapper, codec
}

func init() {
	// Certain API objects are returned regardless of the contents of storage:
	// api.Status is returned in errors
	// api.ServerOp/api.ServerOpList are returned by /operations

	// "internal" version
	api.Scheme.AddKnownTypes("", &Simple{}, &SimpleList{},
		&api.Status{}, &api.ServerOp{}, &api.ServerOpList{})
	// "version" version
	// TODO: Use versioned api objects?
	api.Scheme.AddKnownTypes(testVersion, &Simple{}, &SimpleList{},
		&api.Status{}, &api.ServerOp{}, &api.ServerOpList{})

	defMapper := meta.NewDefaultRESTMapper(
		versions,
		func(version string) (*meta.VersionInterfaces, bool) {
			interfaces, err := interfacesFor(version)
			if err != nil {
				return nil, false
			}
			return interfaces, true
		},
	)
	defMapper.Add(api.Scheme, true, versions...)
	mapper = defMapper
}

func init() {
	// Use the first API version in the list of registered versions as the latest.
	Version = registered.RegisteredVersions[0]
	OldestVersion = registered.RegisteredVersions[len(registered.RegisteredVersions)-1]
	Codec = runtime.CodecFor(api.Scheme, Version)
	// Put the registered versions in Versions in reverse order.
	versions := registered.RegisteredVersions
	Versions = []string{}
	for i := len(versions) - 1; i >= 0; i-- {
		Versions = append(Versions, versions[i])
	}

	mapper := meta.NewDefaultRESTMapper(
		versions,
		func(version string) (*meta.VersionInterfaces, bool) {
			interfaces, err := InterfacesFor(version)
			if err != nil {
				return nil, false
			}
			return interfaces, true
		},
	)

	// the list of kinds that are scoped at the root of the api hierarchy
	// if a kind is not enumerated here, it is assumed to have a namespace scope
	kindToRootScope := map[string]bool{
		"Node":                       true,
		"Minion":                     true,
		"Namespace":                  true,
		"PersistentVolume":           true,
		"SecurityContextConstraints": true,
	}

	// setup aliases for groups of resources
	mapper.AddResourceAlias("all", userResources...)

	// these kinds should be excluded from the list of resources
	ignoredKinds := util.NewStringSet(
		"ListOptions",
		"DeleteOptions",
		"Status",
		"PodLogOptions",
		"PodExecOptions",
		"PodProxyOptions")

	// enumerate all supported versions, get the kinds, and register with the mapper how to address our resources.
	for _, version := range versions {
		for kind := range api.Scheme.KnownTypes(version) {
			if ignoredKinds.Has(kind) {
				continue
			}
			scope := meta.RESTScopeNamespace
			if kindToRootScope[kind] {
				scope = meta.RESTScopeRoot
			}
			mapper.Add(scope, kind, version, false)
		}
	}
	RESTMapper = mapper
}

func newMapper() *meta.DefaultRESTMapper {
	return meta.NewDefaultRESTMapper(
		versions,
		func(version string) (*meta.VersionInterfaces, bool) {
			interfaces, err := interfacesFor(version)
			if err != nil {
				return nil, false
			}
			return interfaces, true
		},
	)
}

func init() {
	mapper := meta.NewDefaultRESTMapper(
		Versions,
		func(version string) (*meta.VersionInterfaces, bool) {
			interfaces, err := InterfacesFor(version)
			if err != nil {
				return nil, false
			}
			return interfaces, true
		},
	)
	// list of versions we support on the server
	versions := []string{"v1beta1", "v1beta2", "v1beta3"}

	// versions that used mixed case URL formats
	versionMixedCase := map[string]bool{
		"v1beta1": true,
		"v1beta2": true,
	}

	// backwards compatibility, prior to v1beta3, we identified the namespace as a query parameter
	versionToNamespaceScope := map[string]meta.RESTScope{
		"v1beta1": meta.RESTScopeNamespaceLegacy,
		"v1beta2": meta.RESTScopeNamespaceLegacy,
		"v1beta3": meta.RESTScopeNamespace,
	}

	// the list of kinds that are scoped at the root of the api hierarchy
	// if a kind is not enumerated here, it is assumed to have a namespace scope
	kindToRootScope := map[string]bool{
		"Node":      true,
		"Minion":    true,
		"Namespace": true,
	}

	// enumerate all supported versions, get the kinds, and register with the mapper how to address our resources
	for _, version := range versions {
		for kind := range api.Scheme.KnownTypes(version) {
			mixedCase, found := versionMixedCase[version]
			if !found {
				mixedCase = false
			}
			scope := versionToNamespaceScope[version]
			_, found = kindToRootScope[kind]
			if found {
				scope = meta.RESTScopeRoot
			}
			mapper.Add(scope, kind, version, mixedCase)
		}
	}
	RESTMapper = mapper
}

func init() {
	mapper := meta.NewDefaultRESTMapper(
		Versions,
		func(version string) (*meta.VersionInterfaces, bool) {
			interfaces, err := InterfacesFor(version)
			if err != nil {
				return nil, false
			}
			return interfaces, true
		},
	)
	mapper.Add(api.Scheme, true, Versions...)
	// TODO: when v1beta3 is added it will not use mixed case.
	RESTMapper = mapper
}

func init() {
	mapper := meta.NewDefaultRESTMapper(
		Versions,
		func(version string) (*meta.VersionInterfaces, bool) {
			interfaces, err := InterfacesFor(version)
			if err != nil {
				return nil, false
			}
			return interfaces, true
		},
	)
	mapper.Add(api.Scheme, true, "v1beta1", "v1beta2")
	mapper.Add(api.Scheme, false, "v1beta3")
	RESTMapper = mapper
}

func newExternalScheme() (*runtime.Scheme, meta.RESTMapper, runtime.Codec) {
	scheme := runtime.NewScheme()
	scheme.AddKnownTypeWithName("", "Type", &internalType{})
	scheme.AddKnownTypeWithName("unlikelyversion", "Type", &externalType{})

	codec := runtime.CodecFor(scheme, "unlikelyversion")
	mapper := meta.NewDefaultRESTMapper([]string{"unlikelyversion"}, func(version string) (*meta.VersionInterfaces, bool) {
		return &meta.VersionInterfaces{
			Codec:            codec,
			ObjectConvertor:  scheme,
			MetadataAccessor: meta.NewAccessor(),
		}, (version == "unlikelyversion")
	})
	mapper.Add(scheme, false, "unlikelyversion")

	return scheme, mapper, codec
}

func NewDefaultRESTMapper(versions []string, interfacesFunc meta.VersionInterfacesFunc, importPathPrefix string,
	ignoredKinds, rootScoped util.StringSet) *meta.DefaultRESTMapper {

	mapper := meta.NewDefaultRESTMapper(versions, interfacesFunc)
	// enumerate all supported versions, get the kinds, and register with the mapper how to address our resources.
	for _, version := range versions {
		for kind, oType := range Scheme.KnownTypes(version) {
			// TODO: Remove import path prefix check.
			// We check the import path prefix because we currently stuff both "api" and "experimental" objects
			// into the same group within Scheme since Scheme has no notion of groups yet.
			if !strings.HasPrefix(oType.PkgPath(), importPathPrefix) || ignoredKinds.Has(kind) {
				continue
			}
			scope := meta.RESTScopeNamespace
			if rootScoped.Has(kind) {
				scope = meta.RESTScopeRoot
			}
			mapper.Add(scope, kind, version, false)
		}
	}
	return mapper
}

func newExternalScheme() (*runtime.Scheme, meta.RESTMapper, runtime.Codec) {
	scheme := runtime.NewScheme()
	scheme.AddKnownTypeWithName("", "Type", &internalType{})
	scheme.AddKnownTypeWithName("unlikelyversion", "Type", &externalType{})

	codec := runtime.CodecFor(scheme, "unlikelyversion")
	mapper := meta.NewDefaultRESTMapper([]string{"unlikelyversion"}, func(version string) (*meta.VersionInterfaces, bool) {
		return &meta.VersionInterfaces{
			Codec:            codec,
			ObjectConvertor:  scheme,
			MetadataAccessor: meta.NewAccessor(),
		}, (version == "unlikelyversion")
	})
	for _, version := range []string{"unlikelyversion"} {
		for kind := range scheme.KnownTypes(version) {
			mixedCase := false
			scope := meta.RESTScopeNamespace
			mapper.Add(scope, kind, version, mixedCase)
		}
	}

	return scheme, mapper, codec
}

func init() {
	kubeMapper := klatest.RESTMapper

	// list of versions we support on the server, in preferred order
	versions := []string{"v1beta3", "v1"}

	originMapper := kmeta.NewDefaultRESTMapper(
		versions,
		func(version string) (*kmeta.VersionInterfaces, bool) {
			interfaces, err := InterfacesFor(version)
			if err != nil {
				return nil, false
			}
			return interfaces, true
		},
	)

	// the list of kinds that are scoped at the root of the api hierarchy
	// if a kind is not enumerated here, it is assumed to have a namespace scope
	kindToRootScope := map[string]bool{
		"Status": true,

		"Project":        true,
		"ProjectRequest": true,

		"Image": true,

		"User":                true,
		"Identity":            true,
		"UserIdentityMapping": true,

		"OAuthAccessToken":         true,
		"OAuthAuthorizeToken":      true,
		"OAuthClient":              true,
		"OAuthClientAuthorization": true,

		"ClusterRole":          true,
		"ClusterRoleBinding":   true,
		"ClusterPolicy":        true,
		"ClusterPolicyBinding": true,

		"ClusterNetwork": true,
		"HostSubnet":     true,
	}

	// enumerate all supported versions, get the kinds, and register with the mapper how to address our resources
	for _, version := range versions {
		for kind, t := range api.Scheme.KnownTypes(version) {
			if !strings.Contains(t.PkgPath(), "openshift/origin") {
				if _, ok := kindToRootScope[kind]; !ok {
					continue
				}
			}
			originTypes.Insert(kind)
			scope := kmeta.RESTScopeNamespace
			_, found := kindToRootScope[kind]
			if found || (strings.HasSuffix(kind, "List") && kindToRootScope[strings.TrimSuffix(kind, "List")]) {
				scope = kmeta.RESTScopeRoot
			}
			glog.V(6).Infof("Registering %s %s %s", kind, version, scope.Name())
			originMapper.Add(scope, kind, version, false)
		}
	}

	// For Origin we use MultiRESTMapper that handles both Origin and Kubernetes
	// objects
	RESTMapper = meta.MultiRESTMapper{originMapper, kubeMapper}
}

func init() {
	// Use the first API version in the list of registered versions as the latest.
	Version = registered.RegisteredVersions[0]
	Codec = runtime.CodecFor(api.Scheme, Version)
	// Put the registered versions in Versions in reverse order.
	versions := registered.RegisteredVersions
	Versions = []string{}
	for i := len(versions) - 1; i >= 0; i-- {
		Versions = append(Versions, versions[i])
	}

	mapper := meta.NewDefaultRESTMapper(
		versions,
		func(version string) (*meta.VersionInterfaces, bool) {
			interfaces, err := InterfacesFor(version)
			if err != nil {
				return nil, false
			}
			return interfaces, true
		},
	)

	// versions that used mixed case URL formats
	versionMixedCase := map[string]bool{
		"v1beta1": true,
		"v1beta2": true,
	}

	// backwards compatibility, prior to v1beta3, we identified the namespace as a query parameter
	versionToNamespaceScope := map[string]meta.RESTScope{
		"v1beta1": meta.RESTScopeNamespaceLegacy,
		"v1beta2": meta.RESTScopeNamespaceLegacy,
		"v1beta3": meta.RESTScopeNamespace,
		"v1":      meta.RESTScopeNamespace,
	}

	// the list of kinds that are scoped at the root of the api hierarchy
	// if a kind is not enumerated here, it is assumed to have a namespace scope
	kindToRootScope := map[string]bool{
		"Node":             true,
		"Minion":           true,
		"Namespace":        true,
		"PersistentVolume": true,
	}

	// setup aliases for groups of resources
	mapper.AddResourceAlias("all", userResources...)

	// these kinds should be excluded from the list of resources
	ignoredKinds := util.NewStringSet(
		"ListOptions",
		"DeleteOptions",
		"Status",
		"ContainerManifest",
		"PodLogOptions",
		"PodExecOptions",
		"PodProxyOptions")

	// enumerate all supported versions, get the kinds, and register with the mapper how to address our resources.
	for _, version := range versions {
		for kind := range api.Scheme.KnownTypes(version) {
			if ignoredKinds.Has(kind) {
				continue
			}
			mixedCase, found := versionMixedCase[version]
			if !found {
				mixedCase = false
			}
			scope := versionToNamespaceScope[version]
			_, found = kindToRootScope[kind]
			if found {
				scope = meta.RESTScopeRoot
			}
			mapper.Add(scope, kind, version, mixedCase)
		}
	}
	RESTMapper = mapper
}