Golang String.Insert方法代码示例

// ScopesToVisibleNamespaces returns a list of namespaces that the provided scopes have "get" access to.
// This exists only to support efficiently list/watch of projects (ACLed namespaces)
func ScopesToVisibleNamespaces(scopes []string, clusterPolicyGetter client.ClusterPolicyLister) (sets.String, error) {
	if len(scopes) == 0 {
		return sets.NewString("*"), nil
	}

	visibleNamespaces := sets.String{}

	errors := []error{}
	for _, scope := range scopes {
		found := false

		for _, evaluator := range ScopeEvaluators {
			if evaluator.Handles(scope) {
				found = true
				allowedNamespaces, err := evaluator.ResolveGettableNamespaces(scope, clusterPolicyGetter)
				if err != nil {
					errors = append(errors, err)
					continue
				}

				visibleNamespaces.Insert(allowedNamespaces...)
				break
			}
		}

		if !found {
			errors = append(errors, fmt.Errorf("no scope evaluator found for %q", scope))
		}
	}

	return visibleNamespaces, kutilerrors.NewAggregate(errors)
}

func (r *Requirement) Values() sets.String {
	ret := sets.String{}
	for k := range r.strValues {
		ret.Insert(k)
	}
	return ret
}

func filterInvalidPods(pods []*api.Pod, source string, recorder record.EventRecorder) (filtered []*api.Pod) {
	names := sets.String{}
	for i, pod := range pods {
		var errlist field.ErrorList
		if errs := validation.ValidatePod(pod); len(errs) != 0 {
			errlist = append(errlist, errs...)
			// If validation fails, don't trust it any further -
			// even Name could be bad.
		} else {
			name := kubecontainer.GetPodFullName(pod)
			if names.Has(name) {
				// TODO: when validation becomes versioned, this gets a bit
				// more complicated.
				errlist = append(errlist, field.Duplicate(field.NewPath("metadata", "name"), pod.Name))
			} else {
				names.Insert(name)
			}
		}
		if len(errlist) > 0 {
			name := bestPodIdentString(pod)
			err := errlist.ToAggregate()
			glog.Warningf("Pod[%d] (%s) from %s failed validation, ignoring: %v", i+1, name, source, err)
			recorder.Eventf(pod, api.EventTypeWarning, kubecontainer.FailedValidation, "Error validating pod %s from %s, ignoring: %v", name, source, err)
			continue
		}
		filtered = append(filtered, pod)
	}
	return
}

func computeStatus(statusList []*github.CombinedStatus, requiredContexts []string) string {
	states := sets.String{}
	providers := sets.String{}
	for ix := range statusList {
		status := statusList[ix]
		glog.V(8).Infof("Checking commit: %s status:%v", *status.SHA, status)
		states.Insert(*status.State)

		for _, subStatus := range status.Statuses {
			glog.V(8).Infof("Found status from: %v", subStatus)
			providers.Insert(*subStatus.Context)
		}
	}
	for _, provider := range requiredContexts {
		if !providers.Has(provider) {
			glog.V(8).Infof("Failed to find %q in %v", provider, providers)
			return "incomplete"
		}
	}

	switch {
	case states.Has("pending"):
		return "pending"
	case states.Has("error"):
		return "error"
	case states.Has("failure"):
		return "failure"
	default:
		return "success"
	}
}

// Expand takes aliases and expands them into owner lists.
func (a *Aliases) Expand(toExpand sets.String) sets.String {
	expanded := sets.String{}
	for _, owner := range toExpand.List() {
		expanded.Insert(a.resolve(owner)...)
	}
	return expanded
}

func (config *GithubConfig) UsersWithCommit() ([]string, error) {
	userSet := sets.String{}

	teams, err := config.fetchAllTeams()
	if err != nil {
		glog.Errorf("%v", err)
		return nil, err
	}

	teamIDs := []int{}
	for _, team := range teams {
		repo, _, err := config.client.Organizations.IsTeamRepo(*team.ID, config.Org, config.Project)
		if repo == nil || err != nil {
			continue
		}
		perms := *repo.Permissions
		if perms["push"] {
			teamIDs = append(teamIDs, *team.ID)
		}
	}

	for _, team := range teamIDs {
		users, err := config.fetchAllUsers(team)
		if err != nil {
			glog.Errorf("%v", err)
			continue
		}
		for _, user := range users {
			userSet.Insert(*user.Login)
		}
	}

	return userSet.List(), nil
}

// 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
}

// NewSharedContextEvaluator creates an evaluator object that allows to share context while computing usage of
// single namespace. Context is represented by an object returned by usageComputerFactory and is destroyed
// when the namespace is processed.
func NewSharedContextEvaluator(
	name string,
	groupKind unversioned.GroupKind,
	operationResources map[admission.Operation][]kapi.ResourceName,
	matchedResourceNames []kapi.ResourceName,
	matchesScopeFunc generic.MatchesScopeFunc,
	getFuncByNamespace generic.GetFuncByNamespace,
	listFuncByNamespace generic.ListFuncByNamespace,
	constraintsFunc generic.ConstraintsFunc,
	usageComputerFactory UsageComputerFactory,
) quota.Evaluator {

	rnSet := sets.String{}
	for _, resourceNames := range operationResources {
		rnSet.Insert(quota.ToSet(resourceNames).List()...)
	}

	return &SharedContextEvaluator{
		GenericEvaluator: &generic.GenericEvaluator{
			Name:                       name,
			InternalGroupKind:          groupKind,
			InternalOperationResources: operationResources,
			MatchedResourceNames:       matchedResourceNames,
			MatchesScopeFunc:           matchesScopeFunc,
			GetFuncByNamespace:         getFuncByNamespace,
			ListFuncByNamespace:        listFuncByNamespace,
			ConstraintsFunc:            constraintsFunc,
			UsageFunc: func(object runtime.Object) kapi.ResourceList {
				comp := usageComputerFactory()
				return comp.Usage(object)
			},
		},
		UsageComputerFactory: usageComputerFactory,
	}
}

func runMasterServiceTest(client *client.Client) {
	time.Sleep(12 * time.Second)
	svcList, err := client.Services(api.NamespaceDefault).List(api.ListOptions{})
	if err != nil {
		glog.Fatalf("Unexpected error listing services: %v", err)
	}
	var foundRW bool
	found := sets.String{}
	for i := range svcList.Items {
		found.Insert(svcList.Items[i].Name)
		if svcList.Items[i].Name == "kubernetes" {
			foundRW = true
		}
	}
	if foundRW {
		ep, err := client.Endpoints(api.NamespaceDefault).Get("kubernetes")
		if err != nil {
			glog.Fatalf("Unexpected error listing endpoints for kubernetes service: %v", err)
		}
		if countEndpoints(ep) == 0 {
			glog.Fatalf("No endpoints for kubernetes service: %v", ep)
		}
	} else {
		glog.Errorf("No RW service found: %v", found)
		glog.Fatal("Kubernetes service test failed")
	}
	glog.Infof("Master service test passed.")
}

// Index returns a list of items that match on the index function
// Index is thread-safe so long as you treat all items as immutable
func (c *threadSafeMap) Index(indexName string, obj interface{}) ([]interface{}, error) {
	c.lock.RLock()
	defer c.lock.RUnlock()

	indexFunc := c.indexers[indexName]
	if indexFunc == nil {
		return nil, fmt.Errorf("Index with name %s does not exist", indexName)
	}

	indexKeys, err := indexFunc(obj)
	if err != nil {
		return nil, err
	}
	index := c.indices[indexName]

	// need to de-dupe the return list.  Since multiple keys are allowed, this can happen.
	returnKeySet := sets.String{}
	for _, indexKey := range indexKeys {
		set := index[indexKey]
		for _, key := range set.List() {
			returnKeySet.Insert(key)
		}
	}

	list := make([]interface{}, 0, returnKeySet.Len())
	for absoluteKey := range returnKeySet {
		list = append(list, c.items[absoluteKey])
	}
	return list, nil
}

func (d *ProjectStatusDescriber) MakeGraph(namespace string) (osgraph.Graph, sets.String, error) {
	g := osgraph.New()

	loaders := []GraphLoader{
		&serviceLoader{namespace: namespace, lister: d.K},
		&serviceAccountLoader{namespace: namespace, lister: d.K},
		&secretLoader{namespace: namespace, lister: d.K},
		&rcLoader{namespace: namespace, lister: d.K},
		&podLoader{namespace: namespace, lister: d.K},
		// TODO check swagger for feature enablement and selectively add bcLoader and buildLoader
		// then remove errors.TolerateNotFoundError method.
		&bcLoader{namespace: namespace, lister: d.C},
		&buildLoader{namespace: namespace, lister: d.C},
		&isLoader{namespace: namespace, lister: d.C},
		&dcLoader{namespace: namespace, lister: d.C},
		&routeLoader{namespace: namespace, lister: d.C},
	}
	loadingFuncs := []func() error{}
	for _, loader := range loaders {
		loadingFuncs = append(loadingFuncs, loader.Load)
	}

	forbiddenResources := sets.String{}
	if errs := parallel.Run(loadingFuncs...); len(errs) > 0 {
		actualErrors := []error{}
		for _, err := range errs {
			if kapierrors.IsForbidden(err) {
				forbiddenErr := err.(*kapierrors.StatusError)
				if (forbiddenErr.Status().Details != nil) && (len(forbiddenErr.Status().Details.Kind) > 0) {
					forbiddenResources.Insert(forbiddenErr.Status().Details.Kind)
				}
				continue
			}
			actualErrors = append(actualErrors, err)
		}

		if len(actualErrors) > 0 {
			return g, forbiddenResources, utilerrors.NewAggregate(actualErrors)
		}
	}

	for _, loader := range loaders {
		loader.AddToGraph(g)
	}

	kubeedges.AddAllExposedPodTemplateSpecEdges(g)
	kubeedges.AddAllExposedPodEdges(g)
	kubeedges.AddAllManagedByRCPodEdges(g)
	kubeedges.AddAllRequestedServiceAccountEdges(g)
	kubeedges.AddAllMountableSecretEdges(g)
	kubeedges.AddAllMountedSecretEdges(g)
	buildedges.AddAllInputOutputEdges(g)
	buildedges.AddAllBuildEdges(g)
	deployedges.AddAllTriggerEdges(g)
	deployedges.AddAllDeploymentEdges(g)
	imageedges.AddAllImageStreamRefEdges(g)
	routeedges.AddAllRouteEdges(g)

	return g, forbiddenResources, nil
}

// GetMountSecretNames Get a list of the names of the mount secrets associated
// with a service account
func (o SecretOptions) GetMountSecretNames(serviceaccount *kapi.ServiceAccount) sets.String {
	names := sets.String{}
	for _, secret := range serviceaccount.Secrets {
		names.Insert(secret.Name)
	}
	return names
}

func computeStatus(combinedStatus *github.CombinedStatus, requiredContexts []string) string {
	states := sets.String{}
	providers := sets.String{}

	if len(requiredContexts) == 0 {
		return *combinedStatus.State
	}

	requires := sets.NewString(requiredContexts...)
	for _, status := range combinedStatus.Statuses {
		if !requires.Has(*status.Context) {
			continue
		}
		states.Insert(*status.State)
		providers.Insert(*status.Context)
	}

	missing := requires.Difference(providers)
	if missing.Len() != 0 {
		glog.V(8).Infof("Failed to find %v in CombinedStatus for %s", missing.List(), *combinedStatus.SHA)
		return "incomplete"
	}
	switch {
	case states.Has("pending"):
		return "pending"
	case states.Has("error"):
		return "error"
	case states.Has("failure"):
		return "failure"
	default:
		return "success"
	}
}

func (m *DefaultRESTMapper) KindFor(resource unversioned.GroupVersionResource) (unversioned.GroupVersionKind, error) {
	kinds, err := m.KindsFor(resource)
	if err != nil {
		return unversioned.GroupVersionKind{}, err
	}

	// TODO for each group, choose the most preferred (first) version.  This keeps us consistent with code today.
	// eventually, we'll need a RESTMapper that is aware of what's available server-side and deconflicts that with
	// user preferences
	oneKindPerGroup := []unversioned.GroupVersionKind{}
	groupsAdded := sets.String{}
	for _, kind := range kinds {
		if groupsAdded.Has(kind.Group) {
			continue
		}

		oneKindPerGroup = append(oneKindPerGroup, kind)
		groupsAdded.Insert(kind.Group)
	}

	if len(oneKindPerGroup) == 1 {
		return oneKindPerGroup[0], nil
	}

	return unversioned.GroupVersionKind{}, fmt.Errorf("%v is ambiguous, got: %v", resource, kinds)
}

func (c *MasterConfig) defaultAPIGroupVersion() *apiserver.APIGroupVersion {
	var restMapper meta.MultiRESTMapper
	seenGroups := sets.String{}
	for _, gv := range registered.EnabledVersions() {
		if seenGroups.Has(gv.Group) {
			continue
		}
		seenGroups.Insert(gv.Group)

		groupMeta, err := registered.Group(gv.Group)
		if err != nil {
			continue
		}
		restMapper = meta.MultiRESTMapper(append(restMapper, groupMeta.RESTMapper))
	}

	statusMapper := meta.NewDefaultRESTMapper([]unversioned.GroupVersion{kubeapiv1.SchemeGroupVersion}, registered.GroupOrDie(kapi.GroupName).InterfacesFor)
	statusMapper.Add(kubeapiv1.SchemeGroupVersion.WithKind("Status"), meta.RESTScopeRoot)
	restMapper = meta.MultiRESTMapper(append(restMapper, statusMapper))

	return &apiserver.APIGroupVersion{
		Root: OpenShiftAPIPrefix,

		Mapper: restMapper,

		Creater:   kapi.Scheme,
		Typer:     kapi.Scheme,
		Convertor: kapi.Scheme,
		Linker:    registered.GroupOrDie("").SelfLinker,

		Admit:                       c.AdmissionControl,
		Context:                     c.getRequestContextMapper(),
		SubresourceGroupVersionKind: map[string]unversioned.GroupVersionKind{},
	}
}