Golang Factory.Decoder方法代码示例

// calculateIdlableAnnotationsByService calculates the list of objects involved in the idling process from a list of services in a file.
// Using the list of services, it figures out the associated scalable objects, and returns a map from the endpoints object for the services to
// the list of scalable resources associated with that endpoints object, as well as a map from CrossGroupObjectReferences to scale to 0 to the
// name of the associated service.
func (o *IdleOptions) calculateIdlableAnnotationsByService(f *clientcmd.Factory) (map[types.NamespacedName]idleUpdateInfo, map[unidlingapi.CrossGroupObjectReference]types.NamespacedName, error) {
	// load our set of services
	client, err := f.Client()
	if err != nil {
		return nil, nil, err
	}

	mapper, _ := f.Object(false)

	podsLoaded := make(map[kapi.ObjectReference]*kapi.Pod)
	getPod := func(ref kapi.ObjectReference) (*kapi.Pod, error) {
		if pod, ok := podsLoaded[ref]; ok {
			return pod, nil
		}
		pod, err := client.Pods(ref.Namespace).Get(ref.Name)
		if err != nil {
			return nil, err
		}

		podsLoaded[ref] = pod

		return pod, nil
	}

	controllersLoaded := make(map[kapi.ObjectReference]runtime.Object)
	helpers := make(map[unversioned.GroupKind]*resource.Helper)
	getController := func(ref kapi.ObjectReference) (runtime.Object, error) {
		if controller, ok := controllersLoaded[ref]; ok {
			return controller, nil
		}
		gv, err := unversioned.ParseGroupVersion(ref.APIVersion)
		if err != nil {
			return nil, err
		}
		// just get the unversioned version of this
		gk := unversioned.GroupKind{Group: gv.Group, Kind: ref.Kind}
		helper, ok := helpers[gk]
		if !ok {
			var mapping *meta.RESTMapping
			mapping, err = mapper.RESTMapping(unversioned.GroupKind{Group: gv.Group, Kind: ref.Kind}, "")
			if err != nil {
				return nil, err
			}
			var client resource.RESTClient
			client, err = f.ClientForMapping(mapping)
			if err != nil {
				return nil, err
			}
			helper = resource.NewHelper(client, mapping)
			helpers[gk] = helper
		}

		var controller runtime.Object
		controller, err = helper.Get(ref.Namespace, ref.Name, false)
		if err != nil {
			return nil, err
		}

		controllersLoaded[ref] = controller

		return controller, nil
	}

	targetScaleRefs := make(map[unidlingapi.CrossGroupObjectReference]types.NamespacedName)
	endpointsInfo := make(map[types.NamespacedName]idleUpdateInfo)

	decoder := f.Decoder(true)
	err = o.svcBuilder.Do().Visit(func(info *resource.Info, err error) error {
		if err != nil {
			return err
		}

		endpoints, isEndpoints := info.Object.(*kapi.Endpoints)
		if !isEndpoints {
			return fmt.Errorf("you must specify endpoints, not %v (view available endpoints with \"%s get endpoints\").", info.Mapping.Resource, o.cmdFullName)
		}

		endpointsName := types.NamespacedName{
			Namespace: endpoints.Namespace,
			Name:      endpoints.Name,
		}
		scaleRefs, err := findScalableResourcesForEndpoints(endpoints, decoder, getPod, getController)
		if err != nil {
			return fmt.Errorf("unable to calculate scalable resources for service %s/%s: %v", endpoints.Namespace, endpoints.Name, err)
		}

		for ref := range scaleRefs {
			targetScaleRefs[ref] = endpointsName
		}

		idleInfo := idleUpdateInfo{
			obj:       endpoints,
			scaleRefs: scaleRefs,
		}

		endpointsInfo[endpointsName] = idleInfo
//.........这里部分代码省略.........

func (o *RolloutLatestOptions) Complete(f *clientcmd.Factory, cmd *cobra.Command, args []string, out io.Writer) error {
	if len(args) != 1 {
		return errors.New("one deployment config name is needed as argument.")
	}

	namespace, _, err := f.DefaultNamespace()
	if err != nil {
		return err
	}

	o.oc, o.kc, err = f.Clients()
	if err != nil {
		return err
	}

	o.mapper, o.typer = f.Object(false)
	o.infos, err = resource.NewBuilder(o.mapper, o.typer, resource.ClientMapperFunc(f.ClientForMapping), f.Decoder(true)).
		ContinueOnError().
		NamespaceParam(namespace).
		ResourceNames("deploymentconfigs", args[0]).
		SingleResourceType().
		Do().Infos()
	if err != nil {
		return err
	}

	o.out = out
	o.shortOutput = kcmdutil.GetFlagString(cmd, "output") == "name"
	o.again = kcmdutil.GetFlagBool(cmd, "again")

	return nil
}

// ImportObjects imports objects into OpenShift from a particular location
// into a given namespace
func ImportObjects(f *clientcmd.Factory, ns, location string) error {
	mapper, typer := f.Object(false)
	schema, err := f.Validator(false, "")
	if err != nil {
		return err
	}
	data, err := bootstrap.Asset(location)
	if err != nil {
		return err
	}
	glog.V(8).Infof("Importing data:\n%s\n", string(data))
	r := resource.NewBuilder(mapper, typer, resource.ClientMapperFunc(f.ClientForMapping), f.Decoder(true)).
		Schema(schema).
		ContinueOnError().
		NamespaceParam(ns).
		DefaultNamespace().
		Stream(bytes.NewBuffer(data), location).
		Flatten().
		Do()

	return r.Visit(func(info *resource.Info, err error) error {
		if err != nil {
			return err
		}
		glog.V(5).Infof("Creating %s/%s", info.Namespace, info.Name)
		if err = createAndRefresh(info); err != nil {
			return cmdutil.AddSourceToErr("creating", info.Source, err)
		}
		return nil
	})
}