Golang Strings.Contains方法代码示例

func (stringSetSuite) TestUninitialized(c *gc.C) {
	var uninitialized set.Strings
	c.Assert(uninitialized.Size(), gc.Equals, 0)
	c.Assert(uninitialized.IsEmpty(), gc.Equals, true)
	// You can get values and sorted values from an unitialized set.
	AssertValues(c, uninitialized)
	// All contains checks are false
	c.Assert(uninitialized.Contains("foo"), gc.Equals, false)
	// Remove works on an uninitialized Strings
	uninitialized.Remove("foo")

	var other set.Strings
	// Union returns a new set that is empty but initialized.
	c.Assert(uninitialized.Union(other), gc.DeepEquals, set.NewStrings())
	c.Assert(uninitialized.Intersection(other), gc.DeepEquals, set.NewStrings())
	c.Assert(uninitialized.Difference(other), gc.DeepEquals, set.NewStrings())

	other = set.NewStrings("foo", "bar")
	c.Assert(uninitialized.Union(other), gc.DeepEquals, other)
	c.Assert(uninitialized.Intersection(other), gc.DeepEquals, set.NewStrings())
	c.Assert(uninitialized.Difference(other), gc.DeepEquals, set.NewStrings())
	c.Assert(other.Union(uninitialized), gc.DeepEquals, other)
	c.Assert(other.Intersection(uninitialized), gc.DeepEquals, set.NewStrings())
	c.Assert(other.Difference(uninitialized), gc.DeepEquals, other)

	// Once something is added, the set becomes initialized.
	uninitialized.Add("foo")
	AssertValues(c, uninitialized, "foo")
}

func (s *BootstrapSuite) testToolsMetadata(c *gc.C, exploded bool) {
	provider, err := environs.Provider(s.envcfg.Type())
	c.Assert(err, gc.IsNil)
	env, err := provider.Open(s.envcfg)
	c.Assert(err, gc.IsNil)
	oldMetadata, err := envtools.ReadMetadata(env.Storage())
	c.Assert(err, gc.IsNil)

	_, cmd, err := s.initBootstrapCommand(c, nil, "--env-config", s.b64yamlEnvcfg, "--instance-id", string(s.instanceId))
	c.Assert(err, gc.IsNil)
	err = cmd.Run(nil)
	c.Assert(err, gc.IsNil)

	newMetadata, err := envtools.ReadMetadata(env.Storage())
	c.Assert(err, gc.IsNil)
	if !exploded {
		c.Assert(newMetadata, gc.HasLen, len(oldMetadata))
	} else {
		// new metadata should have more tools.
		c.Assert(len(newMetadata), jc.GreaterThan, len(oldMetadata))
		var expectedSeries set.Strings
		for _, series := range version.SupportedSeries() {
			os, err := version.GetOSFromSeries(series)
			c.Assert(err, gc.IsNil)
			if os == version.Ubuntu {
				expectedSeries.Add(series)
			}
		}
		c.Assert(newMetadata, gc.HasLen, expectedSeries.Size())
		for _, m := range newMetadata {
			c.Assert(expectedSeries.Contains(m.Release), jc.IsTrue)
		}
	}
}

// fetchMachines returns a map from top level machine id to machines, where machines[0] is the host
// machine and machines[1..n] are any containers (including nested ones).
//
// If machineIds is non-nil, only machines whose IDs are in the set are returned.
func fetchMachines(st stateInterface, machineIds set.Strings) (map[string][]*state.Machine, error) {
	v := make(map[string][]*state.Machine)
	machines, err := st.AllMachines()
	if err != nil {
		return nil, err
	}
	// AllMachines gives us machines sorted by id.
	for _, m := range machines {
		if machineIds != nil && !machineIds.Contains(m.Id()) {
			continue
		}
		parentId, ok := m.ParentId()
		if !ok {
			// Only top level host machines go directly into the machine map.
			v[m.Id()] = []*state.Machine{m}
		} else {
			topParentId := state.TopParentId(m.Id())
			machines, ok := v[topParentId]
			if !ok {
				panic(fmt.Errorf("unexpected machine id %q", parentId))
			}
			machines = append(machines, m)
			v[topParentId] = machines
		}
	}
	return v, nil
}

func (s *ModelConfigSourceSuite) assertModelConfigValues(c *gc.C, modelCfg *config.Config, modelAttributes, controllerAttributes set.Strings) {
	expectedValues := make(config.ConfigValues)
	defaultAttributes := set.NewStrings()
	for defaultAttr := range config.ConfigDefaults() {
		defaultAttributes.Add(defaultAttr)
	}
	for attr, val := range modelCfg.AllAttrs() {
		source := "model"
		if defaultAttributes.Contains(attr) {
			source = "default"
		}
		if modelAttributes.Contains(attr) {
			source = "model"
		}
		if controllerAttributes.Contains(attr) {
			source = "controller"
		}
		expectedValues[attr] = config.ConfigValue{
			Value:  val,
			Source: source,
		}
	}
	sources, err := s.State.ModelConfigValues()
	c.Assert(err, jc.ErrorIsNil)
	c.Assert(sources, jc.DeepEquals, expectedValues)
}

// ConvertSpaceName returns a string derived from name that does not
// already exist in existing. It does not modify existing.
func ConvertSpaceName(name string, existing set.Strings) string {
	// First lower case and replace spaces with dashes.
	name = strings.Replace(name, " ", "-", -1)
	name = strings.ToLower(name)
	// Replace any character that isn't in the set "-", "a-z", "0-9".
	name = network.SpaceInvalidChars.ReplaceAllString(name, "")
	// Get rid of any dashes at the start as that isn't valid.
	name = dashPrefix.ReplaceAllString(name, "")
	// And any at the end.
	name = dashSuffix.ReplaceAllString(name, "")
	// Repleace multiple dashes with a single dash.
	name = multipleDashes.ReplaceAllString(name, "-")
	// Special case of when the space name was only dashes or invalid
	// characters!
	if name == "" {
		name = "empty"
	}
	// If this name is in use add a numerical suffix.
	if existing.Contains(name) {
		counter := 2
		for existing.Contains(name + fmt.Sprintf("-%d", counter)) {
			counter += 1
		}
		name = name + fmt.Sprintf("-%d", counter)
	}
	return name
}

func (s *BootstrapSuite) testToolsMetadata(c *gc.C, exploded bool) {
	provider, err := environs.Provider(s.envcfg.Type())
	c.Assert(err, gc.IsNil)
	env, err := provider.Open(s.envcfg)
	c.Assert(err, gc.IsNil)
	envtesting.RemoveFakeToolsMetadata(c, env.Storage())

	_, cmd, err := s.initBootstrapCommand(c, nil, "--env-config", s.b64yamlEnvcfg, "--instance-id", string(s.instanceId))
	c.Assert(err, gc.IsNil)
	err = cmd.Run(nil)
	c.Assert(err, gc.IsNil)

	// We don't write metadata at bootstrap anymore.
	simplestreamsMetadata, err := envtools.ReadMetadata(env.Storage())
	c.Assert(err, gc.IsNil)
	c.Assert(simplestreamsMetadata, gc.HasLen, 0)

	// The tools should have been added to state, and
	// exploded into each of the supported series of
	// the same operating system if the tools were uploaded.
	st, err := state.Open(&mongo.MongoInfo{
		Info: mongo.Info{
			Addrs:  []string{gitjujutesting.MgoServer.Addr()},
			CACert: testing.CACert,
		},
		Password: testPasswordHash(),
	}, mongo.DefaultDialOpts(), environs.NewStatePolicy())
	c.Assert(err, gc.IsNil)
	defer st.Close()

	var expectedSeries set.Strings
	if exploded {
		for _, series := range version.SupportedSeries() {
			os, err := version.GetOSFromSeries(series)
			c.Assert(err, gc.IsNil)
			if os == version.Current.OS {
				expectedSeries.Add(series)
			}
		}
	} else {
		expectedSeries.Add(version.Current.Series)
	}

	storage, err := st.ToolsStorage()
	c.Assert(err, gc.IsNil)
	defer storage.Close()
	metadata, err := storage.AllMetadata()
	c.Assert(err, gc.IsNil)
	c.Assert(metadata, gc.HasLen, expectedSeries.Size())
	for _, m := range metadata {
		c.Assert(expectedSeries.Contains(m.Version.Series), jc.IsTrue)
	}
}

// findAvailableTools returns a list of available tools,
// including tools that may be locally built and then
// uploaded. Tools that need to be built will have an
// empty URL.
func findAvailableTools(env environs.Environ, arch *string, upload bool) (coretools.List, error) {
	if upload {
		// We're forcing an upload: ensure we can do so.
		if err := validateUploadAllowed(env, arch); err != nil {
			return nil, err
		}
		return locallyBuildableTools(), nil
	}

	// We're not forcing an upload, so look for tools
	// in the environment's simplestreams search paths
	// for existing tools.
	var vers *version.Number
	if agentVersion, ok := env.Config().AgentVersion(); ok {
		vers = &agentVersion
	}
	dev := version.Current.IsDev() || env.Config().Development()
	logger.Debugf("looking for bootstrap tools: version=%v", vers)
	toolsList, findToolsErr := findBootstrapTools(env, vers, arch, dev)
	if findToolsErr != nil && !errors.IsNotFound(findToolsErr) {
		return nil, findToolsErr
	}

	if !dev || vers != nil {
		// We are not running a development build, or agent-version
		// was specified; the only tools available are the ones we've
		// just found.
		return toolsList, findToolsErr
	}
	// The tools located may not include the ones that the
	// provider requires. We are running a development build,
	// so augment the list of tools with those that we can build
	// locally.

	// Collate the set of arch+series that are externally available
	// so we can see if we need to build any locally. If we need
	// to, only then do we validate that we can upload (which
	// involves a potentially expensive SupportedArchitectures call).
	var archSeries set.Strings
	for _, tools := range toolsList {
		archSeries.Add(tools.Version.Arch + tools.Version.Series)
	}
	var localToolsList coretools.List
	for _, tools := range locallyBuildableTools() {
		if !archSeries.Contains(tools.Version.Arch + tools.Version.Series) {
			localToolsList = append(localToolsList, tools)
		}
	}
	if len(localToolsList) == 0 || validateUploadAllowed(env, arch) != nil {
		return toolsList, findToolsErr
	}
	return append(toolsList, localToolsList...), nil
}

func (m *Machine) prepareOneSetDevicesAddresses(args *LinkLayerDeviceAddress, allProviderIDs set.Strings) (_ *ipAddressDoc, err error) {
	defer errors.DeferredAnnotatef(&err, "invalid address %q", args.CIDRAddress)

	if err := m.validateSetDevicesAddressesArgs(args); err != nil {
		return nil, errors.Trace(err)
	}

	if allProviderIDs.Contains(string(args.ProviderID)) {
		return nil, NewProviderIDNotUniqueError(args.ProviderID)
	}

	return m.newIPAddressDocFromArgs(args)
}

func (m *Machine) prepareOneSetLinkLayerDeviceArgs(args *LinkLayerDeviceArgs, pendingNames set.Strings) (_ *linkLayerDeviceDoc, err error) {
	defer errors.DeferredAnnotatef(&err, "invalid device %q", args.Name)

	if err := m.validateSetLinkLayerDeviceArgs(args); err != nil {
		return nil, errors.Trace(err)
	}

	if pendingNames.Contains(args.Name) {
		return nil, errors.NewNotValid(nil, "Name specified more than once")
	}

	return m.newLinkLayerDeviceDocFromArgs(args), nil
}

func mergedAddresses(machineAddresses, providerAddresses []address) []network.Address {
	merged := make([]network.Address, len(providerAddresses), len(providerAddresses)+len(machineAddresses))
	var providerValues set.Strings
	for i, address := range providerAddresses {
		providerValues.Add(address.Value)
		merged[i] = address.InstanceAddress()
	}
	for _, address := range machineAddresses {
		if !providerValues.Contains(address.Value) {
			merged = append(merged, address.InstanceAddress())
		}
	}
	return merged
}

// AssertAllSpacesResult makes it easier to verify AllSpaces results.
func (s *SubnetsSuite) AssertAllSpacesResult(c *gc.C, got params.SpaceResults, expected []common.BackingSpace) {
	seen := set.Strings{}
	results := []params.SpaceResult{}
	for _, space := range expected {
		if seen.Contains(space.Name()) {
			continue
		}
		seen.Add(space.Name())
		result := params.SpaceResult{}
		result.Tag = names.NewSpaceTag(space.Name()).String()
		results = append(results, result)
	}
	c.Assert(got, jc.DeepEquals, params.SpaceResults{Results: results})
}

// merge cleans up the pending changes to account for actionId's being
// removed before this watcher consumes them, and to account for the slight
// potential overlap between the inital actionIds pending before the watcher
// starts, and actionId's the watcher detects
func (w *actionWatcher) merge(changes, initial set.Strings, updates map[interface{}]bool) error {
	for id, exists := range updates {
		switch id := id.(type) {
		case string:
			if exists {
				if !initial.Contains(id) {
					changes.Add(id)
				}
			} else {
				changes.Remove(id)
			}
		default:
			return errors.Errorf("id is not of type string, got %T", id)
		}
	}
	return nil
}

// upgradeCertificateDNSNames ensure that the controller certificate
// recorded in the agent config and also mongo server.pem contains the
// DNSNames entries required by Juju.
func upgradeCertificateDNSNames(config agent.ConfigSetter) error {
	si, ok := config.StateServingInfo()
	if !ok || si.CAPrivateKey == "" {
		// No certificate information exists yet, nothing to do.
		return nil
	}

	// Validate the current certificate and private key pair, and then
	// extract the current DNS names from the certificate. If the
	// certificate validation fails, or it does not contain the DNS
	// names we require, we will generate a new one.
	var dnsNames set.Strings
	serverCert, _, err := cert.ParseCertAndKey(si.Cert, si.PrivateKey)
	if err != nil {
		// The certificate is invalid, so create a new one.
		logger.Infof("parsing certificate/key failed, will generate a new one: %v", err)
		dnsNames = set.NewStrings()
	} else {
		dnsNames = set.NewStrings(serverCert.DNSNames...)
	}

	update := false
	requiredDNSNames := []string{"local", "juju-apiserver", "juju-mongodb"}
	for _, dnsName := range requiredDNSNames {
		if dnsNames.Contains(dnsName) {
			continue
		}
		dnsNames.Add(dnsName)
		update = true
	}
	if !update {
		return nil
	}

	// Write a new certificate to the mongo pem and agent config files.
	si.Cert, si.PrivateKey, err = cert.NewDefaultServer(config.CACert(), si.CAPrivateKey, dnsNames.Values())
	if err != nil {
		return err
	}
	if err := mongo.UpdateSSLKey(config.DataDir(), si.Cert, si.PrivateKey); err != nil {
		return err
	}
	config.SetStateServingInfo(si)
	return nil
}

func (sb *StubBacking) AllSpaces() ([]common.BackingSpace, error) {
	sb.MethodCall(sb, "AllSpaces")
	if err := sb.NextErr(); err != nil {
		return nil, err
	}

	// Filter duplicates.
	seen := set.Strings{}
	output := []common.BackingSpace{}
	for _, space := range sb.Spaces {
		if seen.Contains(space.Name()) {
			continue
		}
		seen.Add(space.Name())
		output = append(output, space)
	}
	return output, nil
}

func (sb *StubBacking) AllSubnets() ([]networkingcommon.BackingSubnet, error) {
	sb.MethodCall(sb, "AllSubnets")
	if err := sb.NextErr(); err != nil {
		return nil, err
	}

	// Filter duplicates.
	seen := set.Strings{}
	output := []networkingcommon.BackingSubnet{}
	for _, subnet := range sb.Subnets {
		if seen.Contains(subnet.CIDR()) {
			continue
		}
		seen.Add(subnet.CIDR())
		output = append(output, subnet)
	}
	return output, nil
}