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How to use connect method of runner Package

Best Gauge code snippet using runner.connect

runner.go

Source:runner.go

...69	ssw.cancel()70	ssw.mtx.RUnlock()71}72// Connector is any type that implements the Connect method, which will return73// a connection error, and a WaitGroup that can be waited on at Disconnection.74type Connector interface {75	Connect(ctx context.Context) (*sync.WaitGroup, error)76}77// ConnectionMaster manages a Connector.78type ConnectionMaster struct {79	connector Connector80	cancel    context.CancelFunc81	done      atomic.Value // chan struct{}82}83// NewConnectionMaster creates a new ConnectionMaster. The Connect method should84// be used before Disconnect. The On, Done, and Wait methods may be used at any85// time. However, prior to Connect, Wait and Done immediately return and signal86// completion, respectively.87func NewConnectionMaster(c Connector) *ConnectionMaster {88	return &ConnectionMaster{89		connector: c,90	}91}92// Connect connects the Connector, and returns any initial connection error. Use93// Disconnect to shut down the Connector. Even if Connect returns a non-nil94// error, On may report true until Disconnect is called. You would use Connect95// if the wrapped Connector has a reconnect loop to continually attempt to96// establish a connection even if the initial attempt fails. Use ConnectOnce if97// the Connector should be given one chance to connect before being considered98// not to be "on". If the ConnectionMaster is discarded on error, it is not99// important which method is used.100func (c *ConnectionMaster) Connect(ctx context.Context) (err error) {101	if c.On() { // probably a bug in the consumer102		return errors.New("already running")103	}104	// Attempt to start the Connector.105	ctx, cancel := context.WithCancel(ctx)106	wg, err := c.connector.Connect(ctx)107	if wg == nil {108		cancel() // no context leak109		return fmt.Errorf("connect failure: %w", err)110	}111	// NOTE: A non-nil error currently does not indicate that the Connector is112	// not running, only that the initial connection attempt has failed. As long113	// as the WaitGroup is non-nil we need to wait on it. We return the error so114	// that the caller may decide to stop it or wait (see ConnectOnce).115	// It's running, enable Disconnect.116	c.cancel = cancel // caller should synchronize Connect/Disconnect calls117	// Done and On may be checked at any time.118	done := make(chan struct{})119	c.done.Store(done)120	go func() { // capture the local variables121		wg.Wait()122		cancel() // if the Connector just died on its own, don't leak the context123		close(done)124	}()125	return err126}127// ConnectOnce is like Connect, but on error the internal status is updated so128// that the On method returns false. This method may be used if an error from129// the Connector is terminal. The caller may also use Connect if they cancel the130// parent context or call Disconnect.131func (c *ConnectionMaster) ConnectOnce(ctx context.Context) (err error) {132	if err = c.Connect(ctx); err != nil {133		// If still "On", disconnect.134		// c.Disconnect() // no-op if not "On"135		if c.cancel != nil {136			c.cancel()137			<-c.done.Load().(chan struct{}) // wait for Connector138		}139	}140	return err141}142// Done returns a channel that is closed when the Connector's WaitGroup is done.143// If called before Connect, a closed channel is returned.144func (c *ConnectionMaster) Done() <-chan struct{} {145	done, ok := c.done.Load().(chan struct{})146	if ok {147		return done148	}149	done = make(chan struct{})150	close(done)151	return done152}153// On indicates if the Connector is running. This returns false if never154// connected, or if the Connector has completed shut down.155func (c *ConnectionMaster) On() bool {156	select {157	case <-c.Done():158		return false159	default:160		return true161	}162}163// Wait waits for the the Connector to shut down. It returns immediately if164// Connect has not been called yet.165func (c *ConnectionMaster) Wait() {166	<-c.Done() // let the anon goroutine from Connect return167}168// Disconnect closes the connection and waits for shutdown. This must not be169// used before or concurrently with Connect.170func (c *ConnectionMaster) Disconnect() {171	if !c.On() {172		return173	}174	c.cancel()175	c.Wait()176}...

storage.go

Source:storage.go

1package kafka_connect2import (3	"context"4	"encoding/json"5	"github.com/pickme-go/k-stream/consumer"6	"github.com/pickme-go/k-stream/producer"7	"time"8)9type Storage interface {10	Save(c Runner) error11	Get(name string) (*RunnerConfig, error)12	GetAll(name string) (map[string]*RunnerConfig, error)13	Delete(name string) error14}15type connectStorage struct {16	connectorConfigs map[string]*RunnerConfig17	synced           chan bool18	conf             *connectStorageConfig19}20type connectStorageConfig struct {21	consumer consumer.PartitionConsumer22	producer producer.Producer23	storageTopic string24}25func NewConnectStorage(conf *connectStorageConfig) *connectStorage {26	s := &connectStorage{27		connectorConfigs: make(map[string]*RunnerConfig),28		synced: make(chan bool, 1),29		conf:conf,30	}31	go s.runSync()32	<- s.synced33	return s34}35func (s *connectStorage) Save(config *RunnerConfig) error {36	key, val, err := s.encode(config)37	if err != nil {38		return nil39	}40	_, _, err = s.conf.producer.Produce(context.Background(), &consumer.Record{41		Key: key,42		Value: val,43		Topic: s.conf.storageTopic,44		Partition: 0, // TODO provide multiple partition support45		Timestamp: time.Now(),46	})47	if err != nil {48		return err49	}50	s.connectorConfigs[config.Connector.Name] = config51	return nil52}53func (s *connectStorage) Get(name string) (*RunnerConfig, error) {54	if s.connectorConfigs[name] == nil {55		return nil, nil56	}57	return s.connectorConfigs[name], nil58}59func (s *connectStorage) GetAll() (map[string]*RunnerConfig, error) {60	return s.connectorConfigs, nil61}62func (s *connectStorage) Delete(name string) error {63	key := []byte(name)64	_, _, err := s.conf.producer.Produce(context.Background(), &consumer.Record{65		Key: key,66		Value: nil,67		Partition: 0, // TODO provide multiple partition support68		Timestamp: time.Now(),69	})70	if err != nil {71		return err72	}73	delete(s.connectorConfigs, name)74	return nil75}76func (s *connectStorage) encode(config *RunnerConfig) (key, val []byte, err error) {77	byt, err := json.Marshal(config)78	if err != nil {79		return nil, nil, err80	}81	return []byte(config.Connector.Name), byt, nil82}83func (s *connectStorage) decode(byt []byte) (*RunnerConfig, error) {84	c := RunnerConfig{}85	if err := json.Unmarshal(byt, &c); err != nil {86		return nil, err87	}88	return &c, nil89}90func (s *connectStorage) runSync() {91	Logger.Info(`connectStorage.sync`, `storage syncing...`)92	messages, err := s.conf.consumer.Consume(s.conf.storageTopic, 0, consumer.Earliest)93	if err != nil {94		Logger.Fatal(`connectStorage.sync`, err)95	}96	MLOOP:97	for message := range messages{98		switch m := message.(type) {99		case *consumer.Record:100			config, err := s.decode(m.Value)101			if err == nil {102				s.connectorConfigs[string(m.Key)] = config103				continue MLOOP104			}105			Logger.Error(`connectStorage.sync`, err)106		case *consumer.Error:107			Logger.Error(`connectStorage.sync`, err)108		case *consumer.PartitionEnd:109			Logger.Info(`connectStorage.sync`, `storage synced`)110			s.synced <- true111		}112	}113}...

event.go

Source:event.go

...33		events: make(map[string]chan *defaultMsg, 0),34	}, nil35}36//æå¼è¿æ¥37func (connect *defaultConnect) Open() error {38	return nil39}40func (connect *defaultConnect) Health() (event.Health, error) {41	connect.mutex.RLock()42	defer connect.mutex.RUnlock()43	return event.Health{Workload: connect.actives}, nil44}45//å³éè¿æ¥46func (connect *defaultConnect) Close() error {47	connect.runner.End()48	return nil49}50func (connect *defaultConnect) Accept(delegate event.Delegate) error {51	connect.mutex.Lock()52	defer connect.mutex.Unlock()53	connect.delegate = delegate54	return nil55}56func (connect *defaultConnect) Register(group, name string) error {57	connect.mutex.Lock()58	defer connect.mutex.Unlock()59	connect.events[name] = make(chan *defaultMsg, 10)60	return nil61}62//å¼å§è®¢éè63func (connect *defaultConnect) Start() error {64	if connect.running {65		return errRunning66	}67	for _, cccc := range connect.events {68		connect.runner.Run(func() {69			for {70				select {71				case msg := <-cccc:72					connect.delegate.Serve(msg.name, msg.data)73				case <-connect.runner.Stop():74					return75				}76			}77		})78	}79	connect.running = true80	return nil81}82func (connect *defaultConnect) Publish(name string, data []byte) error {83	if qqq, ok := connect.events[name]; ok {84		qqq <- &defaultMsg{name, data}85	}86	return nil87}88//------------------------- é»è®¤äºä»¶é©±å¨ end --------------------------...

connect

Using AI Code Generation

1import (2func main() {3	r := runner.New(3 * time.Second)4	r.Add(createTask(), createTask(), createTask())5	if err := r.Start(); err != nil {6		switch err {7			fmt.Println("Terminating due to timeout")8			os.Exit(1)9			fmt.Println("Terminating due to interrupt")10			os.Exit(2)11		}12	}13	fmt.Println("Process ended")14}15func createTask() func(int) {16	return func(id int) {17		fmt.Printf("Processor - Task #%d.\n", id)18		time.Sleep(time.Duration(id) * time.Second)19	}20}21import (22type Runner struct {23	tasks     []func(int)24}25var ErrTimeout = errors.New("received timeout")26var ErrInterrupt = errors.New("received interrupt")27func New(d time.Duration) *Runner {28	return &Runner{29		interrupt: make(chan os.Signal, 1),30		complete:  make(chan error),31		timeout:   time.After(d),32	}33}34func (r *Runner) Add(tasks ...func(int)) {35	r.tasks = append(r.tasks, tasks...)36}37func (r *Runner) Start() error {38	signal.Notify(r.interrupt, os.Interrupt)39	go func() {40		r.complete <- r.run()41	}()42	select {43	}44}45func (r *Runner) run() error {46	for id, task := range r.tasks {47		if r.gotInterrupt() {48		}49		task(id)50	}51}52func (r *Runner) gotInterrupt() bool {53	select {54		signal.Stop(r.interrupt)55	}56}

connect

Using AI Code Generation

1import (2func main() {3	fmt.Println("Starting work.")4	r := runner.New(timeout)5	r.Add(createTask(), createTask(), createTask())6	if err := r.Start(); err != nil {7		switch err {8			fmt.Println("Terminating due to timeout.")9			os.Exit(1)10			fmt.Println("Terminating due to interrupt.")11			os.Exit(2)12		}13	}14	fmt.Println("Process ended.")15}16func createTask() func(int) {17	return func(id int) {18		fmt.Printf("Processor - Task #%d.\n", id)19		time.Sleep(time.Duration(id) * time.Second)20	}21}22import (23func main() {24	fmt.Println("Starting work.")25	r := runner.New(timeout)26	r.Add(createTask(), createTask(), createTask())27	go func() {28		r.Stop()29	}()30	if err := r.Start(); err != nil {31		switch err {32			fmt.Println("Terminating due to timeout.")33			os.Exit(1)34			fmt.Println("Terminating due to interrupt.")35			os.Exit(2)36		}37	}38	fmt.Println("Process ended.")39}40func createTask() func(int) {41	return func(id int) {42		fmt.Printf("Processor - Task #%d.\n", id)43		time.Sleep(time.Duration(id) * time.Second)44	}45}46import (47func main() {48	fmt.Println("Starting work.")49	r := runner.New(timeout)50	r.Add(createTask(), createTask(), createTask())51	go func() {52		r.Stop()53	}()54	if err := r.Start(); err != nil {55		switch err {56			fmt.Println("Terminating due to timeout.")57			os.Exit(1)58			fmt.Println("Terminating due to interrupt.")

connect

Using AI Code Generation

1import (2func main() {3	runner := new(Runner)4	runner.Connect()5}6import (7type Runner struct{}8func (r *Runner) Connect() {9	fmt.Println("Connected")10}11import (12type Runner struct{}13func (r *Runner) Connect() {14	fmt.Println("Connected")15}16import (17type Runner struct{}18func (r *Runner) Connect() {19	fmt.Println("Connected")20}21import (22type Runner struct{}23func (r *Runner) Connect() {24	fmt.Println("Connected")25}26import (27type Runner struct{}28func (r *Runner) Connect() {29	fmt.Println("Connected")30}31import (32type Runner struct{}33func (r *Runner) Connect() {34	fmt.Println("Connected")35}36import (37type Runner struct{}38func (r *Runner) Connect() {39	fmt.Println("Connected")40}41import (42type Runner struct{}43func (r *Runner) Connect() {44	fmt.Println("Connected")45}46import (47type Runner struct{}48func (r *Runner) Connect() {49	fmt.Println("Connected")50}51import (52type Runner struct{}53func (r *Runner) Connect() {54	fmt.Println("Connected")55}56import (57type Runner struct{}58func (r *Runner) Connect() {59	fmt.Println("Connected")60}

connect

Using AI Code Generation

1import (2func main() {3	r.connect()4}5import (6func main() {7	r.connect()8}9import (10func main() {11	r.connect()12}13import (14func main() {15	r.connect()16}17import (18func main() {19	r.connect()20}21import (22func main() {23	r.connect()24}25import (26func main() {27	r.connect()28}29import (30func main() {31	r.connect()32}33import (34func main() {35	r.connect()36}37import (38func main() {39	r.connect()40}41import (42func main() {43	r.connect()44}45import (46func main() {47	r.connect()48}49import (50func main() {51	r.connect()52}53import

connect

Using AI Code Generation

1import (2func main() {3	runner.connect()4}5import (6type runner struct {7}8func (r runner) connect() {9	fmt.Println("Connecting...")10}11import (12type runner struct {13}14func (r runner) connect() {15	fmt.Println("Connecting...")16}17import (18type runner struct {19}20func (r runner) connect() {21	fmt.Println("Connecting...")22}23import (24type runner struct {25}26func (r runner) connect() {27	fmt.Println("Connecting...")28}29import (30type runner struct {31}32func (r runner) connect() {33	fmt.Println("Connecting...")34}35import (36type runner struct {37}38func (r runner) connect() {39	fmt.Println("Connecting...")40}41import (42type runner struct {43}44func (r runner) connect() {45	fmt.Println("Connecting...")46}47import (48type runner struct {49}50func (r runner) connect() {51	fmt.Println("Connecting...")52}53import (54type runner struct {55}56func (r runner) connect() {57	fmt.Println("Connecting...")58}59import (60type runner struct {61}62func (r runner) connect() {63	fmt.Println("Connecting...")64}65import (66type runner struct {67}68func (r runner) connect() {69	fmt.Println("Connecting...")70}

connect

Using AI Code Generation

1import (2type Runner struct {3}4func (r *Runner) Connect() {5	fmt.Println("Connected")6}7func main() {8	r := Runner{"Raj", 22}9	v := reflect.ValueOf(&r)10	m := v.MethodByName("Connect")11	args := []reflect.Value{}12	m.Call(args)13}

connect

Using AI Code Generation

1import (2type Runner struct {3}4func (r *Runner) connect() {5	fmt.Println("Connecting to server")6}7func main() {8	r := &Runner{9	}10	r.connect()11}

connect

Using AI Code Generation

1import (2func main() {3	client := http.Client{4	}5	if err != nil {6		log.Fatal(err)7	}8	if err != nil {9		log.Fatal(err)10	}11	resp, err := client.Do(req)12	if err != nil {13		log.Fatal(err)14	}15	fmt.Println(resp)16}17import (18func main() {19	client := http.Client{20	}21	if err != nil {22		log.Fatal(err)23	}24	resp, err := client.Do(req)25	if err != nil {26		log.Fatal(err)27	}28	fmt.Println(resp)29}30import (31func main() {32	client := http.Client{33	}34	if err != nil {35		log.Fatal(err)36	}37	resp, err := client.Do(req)38	if err != nil {39		log.Fatal(err)40	}41	fmt.Println(resp)42}43import (44func main() {45	client := http.Client{46	}

connect

Using AI Code Generation

1import (2func main() {3	r := runner.New(3 * time.Second)4	r.Add(createTask(), createTask(), createTask())5	if err := r.Start(); err != nil {6		switch err {7			fmt.Println("Terminating due to timeout")8			os.Exit(1)9			fmt.Println("Terminating due to interrupt")10			os.Exit(2)11		}12	}13	fmt.Println("Process ended")14}15import (16var ErrTimeout = errors.New("received timeout")17var ErrInterrupt = errors.New("received interrupt")18type Runner struct {19	tasks []func(int)20}21func New(d time.Duration) *Runner {22	return &Runner{23		interrupt: make(chan os.Signal, 1),24		complete:  make(chan error),25		timeout:   time.After(d),26	}27}28func (r *Runner) Add(tasks ...func(int)) {29	r.tasks = append(r.tasks, tasks...)30}31func (r *Runner) Start() error {32	signal.Notify(r.interrupt, os.Interrupt)33	go func() {34		r.complete <- r.run()35	}()36	select {

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