Golang git.NewClient函数代码示例

func test_pub() {
	//create a ClientOptions struct setting the broker address, clientid, turn
	//off trace output
	opts := MQTT.NewClientOptions().AddBroker(*uri)
	opts.SetCleanSession(false)
	opts.SetDefaultPublishHandler(default_msg_handler)
	opts.SetClientID(*cid)

	//create and start a client using the above ClientOptions
	c := MQTT.NewClient(opts)
	if token := c.Connect(); token.Wait() && token.Error() != nil {
		panic(token.Error())
	}

	//Publish messages to topic at qos and wait for the receipt
	//from the server after sending each message
	for i := 0; i < *count; i++ {
		text := fmt.Sprintf("%s #%d", *msg, i)
		token := c.Publish(*topic, byte(*qos), false, text)
		if token == nil {
			fmt.Printf("Publish failed\n")
		} else {
			token.Wait()
			fmt.Printf("Published msg qos[%d] topic[%s] payload[%s]\n",
				*qos, *topic, text)
		}
	}
	// Publish the end-of-test message
	token := c.Publish(*topic, byte(*qos), false, end_of_test)
	if token != nil {
		token.Wait()
	}

	c.Disconnect(250)
}

// SetupMQTT : connect to server and register callbacks
func setupMQTT(config Config) {
	fmt.Printf("username : %s", config.MQTT.Username)
	if pass := config.MQTT.Password; pass == "" {
		fmt.Println("No password given")
	} else {
		fmt.Printf("password: %s\n", config.MQTT.Password)
	}

	var server = fmt.Sprintf("tcp://%s:%s", config.MQTT.Host, config.MQTT.Port)
	opts := MQTT.NewClientOptions().AddBroker(server)
	opts.SetUsername(config.MQTT.Username)
	opts.SetPassword(config.MQTT.Password)
	opts.SetClientID(config.MQTT.ClientID)

	c = MQTT.NewClient(opts)
	if token := c.Connect(); token.Wait() && token.Error() != nil {
		panic(token.Error())
	} else {
		fmt.Printf("connected to %s\n", server)
	}
	//defer c.Disconnect(250)

	if token := c.Subscribe(config.MQTT.Topic, 0, f); token.Wait() && token.Error() != nil {
		fmt.Println(token.Error())
		os.Exit(1)
	}

	text := fmt.Sprintf("Hello from %s who just connected!", config.MQTT.ClientID)
	token := c.Publish(config.MQTT.Topic, 0, false, text)
	token.Wait()
	time.Sleep(2 * time.Second)
}

func main() {
	//create a ClientOptions struct setting the broker address, clientid, turn
	//off trace output and set the default message handler
	opts := MQTT.NewClientOptions().AddBroker("tcp://nava.work:1883")
	opts.SetClientID("go-simple")
	opts.SetDefaultPublishHandler(f)

	//create and start a client using the above ClientOptions
	c := MQTT.NewClient(opts)
	if token := c.Connect(); token.Wait() && token.Error() != nil {
		panic(token.Error())
	}

	//subscribe to the topic /go-mqtt/sample and request messages to be delivered
	//at a maximum qos of zero, wait for the receipt to confirm the subscription

	//if token := c.Subscribe("go-mqtt/sample", 0, nil); token.Wait() && token.Error() != nil {
	//fmt.Println(token.Error())
	//os.Exit(1)
	//}

	//Publish 5 messages to /go-mqtt/sample at qos 1 and wait for the receipt
	//from the server after sending each message

	type payload struct {
		Vendorid  int
		Value     int
		Jobid     int
		Siteid    int
		Cardid    int
		Timestamp string
	}

	for {

		p := payload{
			Cardid:    rand.Intn(100),
			Jobid:     rand.Intn(5),
			Siteid:    rand.Intn(100),
			Value:     rand.Intn(100) * 10,
			Vendorid:  rand.Intn(2000),
			Timestamp: time.Now().Format(time.RFC3339),
		}

		ret, _ := json.Marshal(p)
		val := string(ret)

		text := val
		fmt.Println(text)
		token := c.Publish("paybox", 0, false, text)
		token.Wait()
		//os.Exit(0)
		time.Sleep(10 * time.Second)

	}

	//unsubscribe from /go-mqtt/sample

	c.Disconnect(250)
}

func parser(cmd *cobra.Command, args []string) {
	if verbose {
		jww.SetStdoutThreshold(jww.LevelTrace)
	}
	opts := MQTT.NewClientOptions().AddBroker(viper.GetString("broker")).SetClientID("parser").SetCleanSession(true)

	client := MQTT.NewClient(opts)
	if token := client.Connect(); token.Wait() && token.Error() != nil {
		jww.FATAL.Println(token.Error())
		panic(token.Error())
	}
	defer client.Disconnect(0)

	fi, err := os.Stat(viper.GetString("port"))
	if err != nil {
		jww.FATAL.Println(err)
		panic(err)
	}
	if fi.Mode()&os.ModeType != 0 {
		serialLoop(client)
	} else {
		file, err := os.Open(viper.GetString("port"))
		if err != nil {
			jww.FATAL.Println(err)
			panic(err)
		}
		defer file.Close()
		loop(file, client)
	}
}

func main() {
	opts := MQTT.NewClientOptions().AddBroker("tcp://test.mosquitto.org:1883").SetClientId("trivial")
	opts.SetDefaultPublishHandler(f)

	c := MQTT.NewClient(opts)
	_, err := c.Start()
	if err != nil {
		panic(err)
	}

	filter, _ := MQTT.NewTopicFilter("/go-mqtt/sample", 0)
	if receipt, err := c.StartSubscription(nil, filter); err != nil {
		fmt.Println(err)
		os.Exit(1)
	} else {
		<-receipt
	}

	for i := 0; i < 5; i++ {
		text := fmt.Sprintf("this is msg #%d!", i)
		receipt := c.Publish(MQTT.QOS_ONE, "/go-mqtt/sample", []byte(text))
		<-receipt
	}

	time.Sleep(3 * time.Second)

	if receipt, err := c.EndSubscription("/go-mqtt/sample"); err != nil {
		fmt.Println(err)
		os.Exit(1)
	} else {
		<-receipt
	}

	c.Disconnect(250)
}

// setupWillSubscriber start subscriber process and returnes a channel witch can receive will message.
func setupWillSubscriber(gw *gateway.Gateway, broker *broker.Broker) (chan MQTT.Message, inidef.Error) {
	// Setup MQTT pub/sub client to confirm published content.
	//
	messageOutputChannel := make(chan MQTT.Message)

	opts := MQTT.NewClientOptions()
	brokerUrl := fmt.Sprintf("tcp://%s:%d", broker.Host, broker.Port)
	opts.AddBroker(brokerUrl)
	opts.SetClientID(gw.Name + "testSubscriber") // to distinguish MQTT client from publisher
	opts.SetCleanSession(false)
	opts.SetDefaultPublishHandler(func(client *MQTT.Client, msg MQTT.Message) {
		messageOutputChannel <- msg
	})

	client := MQTT.NewClient(opts)
	if client == nil {
		return nil, inidef.Error("NewClient failed")
	}
	if token := client.Connect(); token.Wait() && token.Error() != nil {
		return nil, inidef.Error(fmt.Sprintf("NewClient Start failed %q", token.Error()))
	}

	qos := 0
	// assume topicPrefix == ""
	willTopic := fmt.Sprintf("/%s/will", gw.Name)
	client.Subscribe(willTopic, byte(qos), func(client *MQTT.Client, msg MQTT.Message) {
		messageOutputChannel <- msg
	})

	return messageOutputChannel, inidef.Error("")
}

// MQTTConnect returns MQTTClient with options.
func MQTTConnect(gwName string, b *Broker) (*MQTT.Client, error) {
	opts := MQTT.NewClientOptions()

	defaulturl := fmt.Sprintf("tcp://%s:%d", b.Host, b.Port)
	if b.Tls {
		defaulturl := fmt.Sprintf("ssl://%s:%d", b.Host, b.Port)
		opts.AddBroker(defaulturl)
		opts.SetClientID(gwName)
		opts.SetTLSConfig(b.TLSConfig)
	} else {
		opts.AddBroker(defaulturl)
		opts.SetClientID(gwName)
	}
	log.Infof("broker connecting to: %v", defaulturl)

	opts.SetUsername(b.Username)
	opts.SetPassword(b.Password)
	if !inidef.IsNil(b.WillMessage) {
		willTopic := strings.Join([]string{b.TopicPrefix, gwName, "will"}, "/")
		willQoS := 0
		opts.SetBinaryWill(willTopic, b.WillMessage, byte(willQoS), true)
	}
	opts.SetOnConnectHandler(b.SubscribeOnConnect)
	opts.SetConnectionLostHandler(b.onConnectionLost)

	client := MQTT.NewClient(opts)
	return client, nil
}

func publishMqtt() {
	opts := mqtt.NewClientOptions()
	opts.SetBroker(*broker)
	opts.SetClientId("pinpad-main")
	opts.SetCleanSession(true)
	opts.SetTraceLevel(mqtt.Off)

	opts.SetOnConnectionLost(func(client *mqtt.MqttClient, err error) {
		fmt.Printf("lost mqtt connection, trying to reconnect: %s\n", err)
		client.Start()
	})

	client := mqtt.NewClient(opts)
	_, err := client.Start()

	if err != nil {
		fmt.Printf("could not connect to mqtt broker: %s\n", err)
		return
	}

	var msg string
	if newStatus.Open {
		msg = "\"open\""
	} else {
		msg = "\"closed\""
	}

	mqttMsg := mqtt.NewMessage([]byte(msg))
	mqttMsg.SetQoS(mqtt.QOS_ONE)
	mqttMsg.SetRetainedFlag(true)
	r := client.PublishMessage(*topic, mqttMsg)
	<-r
	lastPublishedStatus = newStatus
	client.ForceDisconnect()
}

func main() {
	config := &serial.Config{Name: "/dev/tty.usbmodem1411", Baud: 57600}
	s, err := serial.OpenPort(config)
	if err != nil {
		panic(err)
	}

	opts := MQTT.NewClientOptions().AddBroker("tcp://46.101.145.61:1883")
	opts.SetClientID("meteo-studio")

	// Connect MQTT client
	c := MQTT.NewClient(opts)
	if token := c.Connect(); token.Wait() && token.Error() != nil {
		panic(token.Error())
	}

	// Loop over serial port lines
	scanner := bufio.NewScanner(s)
	for scanner.Scan() {
		parts := strings.Split(scanner.Text(), "|")
		if parts[0] == "6" {
			// if command is "6" (meteo data payload), push it to the broker
			token := c.Publish("studio/meteo", 0, false, parts[1])
			token.Wait()
		}
	}
	if err := scanner.Err(); err != nil {
		fmt.Fprintln(os.Stderr, "reading standard input:", err)
	}
}

// setupRetainSubscriber returnes channel in order to read messages with retained flag
func setupRetainSubscriber(gw *gateway.Gateway, broker *broker.Broker, dummyDevice *device.DummyDevice) (chan [2]string, inidef.Error) {
	// Setup MQTT pub/sub client to confirm published content.
	//
	messageOutputChannel := make(chan [2]string)

	opts := MQTT.NewClientOptions()
	brokerUrl := fmt.Sprintf("tcp://%s:%d", broker.Host, broker.Port)
	opts.AddBroker(brokerUrl)
	opts.SetClientID(gw.Name + "testSubscriber") // to distinguish MQTT client from publisher
	opts.SetCleanSession(false)
	opts.SetDefaultPublishHandler(func(client *MQTT.Client, msg MQTT.Message) {
		messageOutputChannel <- [2]string{msg.Topic(), string(msg.Payload())}
	})

	client := MQTT.NewClient(opts)
	if client == nil {
		return nil, inidef.Error("NewClient failed")
	}

	if token := client.Connect(); token.Wait() && token.Error() != nil {
		return nil, inidef.Error(fmt.Sprintf("NewClient Start failed %q", token.Error()))
	}
	qos := 0
	retainedTopic := fmt.Sprintf("%s/%s/%s/%s", broker.TopicPrefix, gw.Name, dummyDevice.Name, dummyDevice.Type)
	client.Subscribe(retainedTopic, byte(qos), func(client *MQTT.Client, msg MQTT.Message) {
	})

	return messageOutputChannel, inidef.Error("")
}

func (d *Device) DoAccess() error {
	logger := log.New(os.Stdout, "", log.LstdFlags)
	MQTT.ERROR = logger
	MQTT.CRITICAL = logger
	MQTT.WARN = logger
	MQTT.DEBUG = logger

	//create a ClientOptions struct setting the broker address, clientid, turn
	//off trace output and set the default message handler
	opts := MQTT.NewClientOptions().AddBroker("tls://" + d.access)
	clientid := fmt.Sprintf("%x", d.id)
	opts.SetClientID(clientid)
	opts.SetUsername(clientid) // clientid as username
	opts.SetPassword(hex.EncodeToString(d.token))
	opts.SetKeepAlive(30 * time.Second)
	opts.SetDefaultPublishHandler(d.messageHandler)
	opts.SetTLSConfig(&tls.Config{Certificates: nil, InsecureSkipVerify: true})

	//create and start a client using the above ClientOptions
	c := MQTT.NewClient(opts)
	if token := c.Connect(); token.Wait() && token.Error() != nil {
		return token.Error()
	}

	// beigin report event test
	go d.reportEvent(c)

	// we just pause here to wait for messages
	<-make(chan int)

	defer c.Disconnect(250)

	return nil
}

func main() {
	tlsconfig := NewTlsConfig()

	opts := MQTT.NewClientOptions()
	opts.AddBroker("ssl://hushbox.net:17004")
	opts.SetClientId("ssl-sample").SetTlsConfig(tlsconfig)
	opts.SetDefaultPublishHandler(f)

	// Start the connection
	c := MQTT.NewClient(opts)
	_, err := c.Start()
	if err != nil {
		panic(err)
	}

	filter, _ := MQTT.NewTopicFilter("/go-mqtt/sample", 0)
	c.StartSubscription(nil, filter)

	i := 0
	for _ = range time.Tick(time.Duration(1) * time.Second) {
		if i == 5 {
			break
		}
		text := fmt.Sprintf("this is msg #%d!", i)
		c.Publish(MQTT.QOS_ZERO, "/go-mqtt/sample", []byte(text))
		i++
	}

	c.Disconnect(250)
}

func mqttClient(mqttUrl string) (*MQTT.MqttClient, error) {
	opts := MQTT.NewClientOptions()
	opts.AddBroker(mqttUrl)
	opts.SetCleanSession(true)
	opts.SetClientId(clientId())

	opts.SetOnConnectionLost(func(client *MQTT.MqttClient, reason error) {
		log.Fatal("MQTT CONNECTION LOST", reason) // TODO reconnect
	})

	parsed, err := url.Parse(mqttUrl)
	if err != nil {
		return nil, err
	}
	if user := parsed.User; user != nil {
		if username := user.Username(); username != "" {
			opts.SetUsername(username)
		}
		if password, set := user.Password(); set {
			opts.SetPassword(password)
		}
	}

	client := MQTT.NewClient(opts)
	_, err = client.Start()
	if err != nil {
		return nil, err
	}

	return client, nil
}

func main() {
	myNoOpStore := &NoOpStore{}

	opts := MQTT.NewClientOptions()
	opts.AddBroker("tcp://iot.eclipse.org:1883")
	opts.SetClientID("custom-store")
	opts.SetStore(myNoOpStore)

	var callback MQTT.MessageHandler = func(client *MQTT.Client, msg MQTT.Message) {
		fmt.Printf("TOPIC: %s\n", msg.Topic())
		fmt.Printf("MSG: %s\n", msg.Payload())
	}

	c := MQTT.NewClient(opts)
	if token := c.Connect(); token.Wait() && token.Error() != nil {
		panic(token.Error())
	}

	c.Subscribe("/go-mqtt/sample", 0, callback)

	for i := 0; i < 5; i++ {
		text := fmt.Sprintf("this is msg #%d!", i)
		token := c.Publish("/go-mqtt/sample", 0, false, text)
		token.Wait()
	}

	for i := 1; i < 5; i++ {
		time.Sleep(1 * time.Second)
	}

	c.Disconnect(250)
}

func main() {
	/*
	 *  MQTT setup
	 */

	opts := MQTT.NewClientOptions().AddBroker("tcp://localhost:1883")
	opts.SetClientID("golirc")

	mc := MQTT.NewClient(opts)
	if token := mc.Connect(); token.Wait() && token.Error() != nil {
		panic(token.Error())
	}

	/*
	 *  LIRC setup
	 */

	ir, err := lirc.Init("/var/run/lirc/lircd")
	if err != nil {
		panic(err)
	}

	ir.Handle("", "BTN_0", makeHandler(mc, "0"))
	ir.Handle("", "BTN_1", makeHandler(mc, "1"))
	ir.Handle("", "BTN_2", makeHandler(mc, "2"))
	ir.Handle("", "BTN_3", makeHandler(mc, "3"))

	go ir.Run()

	select {}
}