huaweicloud-iot-device-sdk-go/iot_device.go

package iot

import (
	"crypto/tls"
	"crypto/x509"
	"encoding/json"
	mqtt "github.com/eclipse/paho.mqtt.golang"
	"github.com/golang/glog"
	"github.com/satori/go.uuid"
	"strings"
	"time"
)

type Gateway interface {
	// 网关更新子设备状态
	UpdateSubDeviceState(subDevicesStatus SubDevicesStatus) bool

	// 网关删除子设备
	DeleteSubDevices(deviceIds []string) bool

	// 网关添加子设备
	AddSubDevices(deviceInfos []DeviceInfo) bool

	// 设置平台添加子设备回调函数
	SetSubDevicesAddHandler(handler SubDevicesAddHandler)

	// 设置平台删除子设备回调函数
	SetSubDevicesDeleteHandler(handler SubDevicesDeleteHandler)

	// 网关同步子设备列表,默认实现不指定版本
	SyncAllVersionSubDevices()

	// 网关同步特定版本子设备列表
	SyncSubDevices(version int)
}

type Device interface {
	Gateway
	Init() bool
	DisConnect()
	IsConnected() bool
	SendMessage(message Message) bool
	ReportProperties(properties DeviceProperties) bool
	BatchReportSubDevicesProperties(service DevicesService)
	QueryDeviceShadow(query DevicePropertyQueryRequest, handler DevicePropertyQueryResponseHandler)
	AddMessageHandler(handler MessageHandler)
	AddCommandHandler(handler CommandHandler)
	AddPropertiesSetHandler(handler DevicePropertiesSetHandler)
	SetPropertyQueryHandler(handler DevicePropertyQueryHandler)
	SetSwFwVersionReporter(handler SwFwVersionReporter)
	SetDeviceUpgradeHandler(handler DeviceUpgradeHandler)
	UploadFile(filename string) bool
	DownloadFile(filename string) bool
}

type iotDevice struct {
	Id                             string
	Password                       string
	Servers                        string
	ServerCert                     []byte
	client                         mqtt.Client
	commandHandlers                []CommandHandler
	messageHandlers                []MessageHandler
	propertiesSetHandlers          []DevicePropertiesSetHandler
	propertyQueryHandler           DevicePropertyQueryHandler
	propertiesQueryResponseHandler DevicePropertyQueryResponseHandler
	subDevicesAddHandler           SubDevicesAddHandler
	subDevicesDeleteHandler        SubDevicesDeleteHandler
	swFwVersionReporter            SwFwVersionReporter
	deviceUpgradeHandler           DeviceUpgradeHandler
	fileUrls                       map[string]string
	qos                            byte
}

func (device *iotDevice) DisConnect() () {
	device.client.Disconnect(0)
}
func (device *iotDevice) SyncAllVersionSubDevices() {
	dataEntry := DataEntry{
		ServiceId: "$sub_device_manager",
		EventType: "sub_device_sync_request",
		EventTime: GetEventTimeStamp(),
		Paras: struct {
		}{},
	}

	var dataEntries []DataEntry
	dataEntries = append(dataEntries, dataEntry)

	data := Data{
		Services: dataEntries,
	}

	if token := device.client.Publish(FormatTopic(DeviceToPlatformTopic, device.Id), device.qos, false, Interface2JsonString(data));
		token.Wait() && token.Error() != nil {
		glog.Errorf("send sub device sync request failed")
	}
}

func (device *iotDevice) SyncSubDevices(version int) {
	syncParas := struct {
		Version int `json:"version"`
	}{
		Version: version,
	}

	dataEntry := DataEntry{
		ServiceId: "$sub_device_manager",
		EventType: "sub_device_sync_request",
		EventTime: GetEventTimeStamp(),
		Paras:     syncParas,
	}

	var dataEntries []DataEntry
	dataEntries = append(dataEntries, dataEntry)

	data := Data{
		Services: dataEntries,
	}

	if token := device.client.Publish(FormatTopic(DeviceToPlatformTopic, device.Id), device.qos, false, Interface2JsonString(data));
		token.Wait() && token.Error() != nil {
		glog.Errorf("send sync sub device request failed")
	}
}

func (device *iotDevice) SetSubDevicesDeleteHandler(handler SubDevicesDeleteHandler) {
	device.subDevicesDeleteHandler = handler
}
func (device *iotDevice) SetSubDevicesAddHandler(handler SubDevicesAddHandler) {
	device.subDevicesAddHandler = handler
}

func (device *iotDevice) SetSwFwVersionReporter(handler SwFwVersionReporter) {
	device.swFwVersionReporter = handler
}

func (device *iotDevice) SetDeviceUpgradeHandler(handler DeviceUpgradeHandler) {
	device.deviceUpgradeHandler = handler
}

func (device *iotDevice) AddSubDevices(deviceInfos []DeviceInfo) bool {
	devices := struct {
		Devices []DeviceInfo `json:"devices"`
	}{
		Devices: deviceInfos,
	}

	requestEventService := DataEntry{
		ServiceId: "$sub_device_manager",
		EventType: "add_sub_device_request",
		EventTime: GetEventTimeStamp(),
		Paras:     devices,
	}

	request := Data{
		ObjectDeviceId: device.Id,
		Services:       []DataEntry{requestEventService},
	}

	if token := device.client.Publish(FormatTopic(DeviceToPlatformTopic, device.Id), device.qos, false, Interface2JsonString(request));
		token.Wait() && token.Error() != nil {
		glog.Warningf("gateway %s add sub devices request send failed", device.Id)
		return false
	}

	glog.Warningf("gateway %s add sub devices request send success", device.Id)
	return true
}

func (device *iotDevice) DeleteSubDevices(deviceIds []string) bool {
	glog.Infof("begin to delete sub-devices %s", deviceIds)

	subDevices := struct {
		Devices []string `json:"devices"`
	}{
		Devices: deviceIds,
	}

	requestEventService := DataEntry{
		ServiceId: "$sub_device_manager",
		EventType: "delete_sub_device_request",
		EventTime: GetEventTimeStamp(),
		Paras:     subDevices,
	}

	request := Data{
		ObjectDeviceId: device.Id,
		Services:       []DataEntry{requestEventService},
	}

	if token := device.client.Publish(FormatTopic(DeviceToPlatformTopic, device.Id), device.qos, false, Interface2JsonString(request));
		token.Wait() && token.Error() != nil {
		glog.Warningf("gateway %s delete sub devices request send failed", device.Id)
		return false
	}

	glog.Warningf("gateway %s delete sub devices request send success", device.Id)
	return true
}

func (device *iotDevice) UpdateSubDeviceState(subDevicesStatus SubDevicesStatus) bool {
	glog.Infof("begin to update sub-devices status")

	requestEventService := DataEntry{
		ServiceId: "$sub_device_manager",
		EventType: "sub_device_update_status",
		EventTime: GetEventTimeStamp(),
		Paras:     subDevicesStatus,
	}

	request := Data{
		ObjectDeviceId: device.Id,
		Services:       []DataEntry{requestEventService},
	}

	if token := device.client.Publish(FormatTopic(DeviceToPlatformTopic, device.Id), device.qos, false, Interface2JsonString(request));
		token.Wait() && token.Error() != nil {
		glog.Warningf("gateway %s update sub devices status failed", device.Id)
		return false
	}

	glog.Info("gateway  update sub devices status failed", device.Id)
	return true
}

func (device *iotDevice) DownloadFile(filename string) bool {
	// 构造获取文件上传URL的请求
	requestParas := FileRequestServiceEventParas{
		FileName: filename,
	}

	serviceEvent := FileRequestServiceEvent{
		Paras: requestParas,
	}
	serviceEvent.ServiceId = "$file_manager"
	serviceEvent.EventTime = GetEventTimeStamp()
	serviceEvent.EventType = "get_download_url"

	var services []FileRequestServiceEvent
	services = append(services, serviceEvent)
	request := FileRequest{
		Services: services,
	}

	if token := device.client.Publish(FormatTopic(DeviceToPlatformTopic, device.Id), device.qos, false, Interface2JsonString(request));
		token.Wait() && token.Error() != nil {
		glog.Warningf("publish file download request url failed")
		return false
	}

	ticker := time.Tick(time.Second)
	for {
		select {
		case <-ticker:
			_, ok := device.fileUrls[filename+FileActionDownload]
			if ok {
				glog.Infof("platform send file upload url success")
				goto ENDFOR
			}

		}
	}
ENDFOR:

	if len(device.fileUrls[filename+FileActionDownload]) == 0 {
		glog.Errorf("get file download url failed")
		return false
	}

	downloadFlag := CreateHttpClient().DownloadFile(filename, device.fileUrls[filename+FileActionDownload])
	if !downloadFlag {
		glog.Errorf("down load file { %s } failed", filename)
		return false
	}

	response := CreateFileUploadDownLoadResultResponse(filename, FileActionDownload, downloadFlag)

	token := device.client.Publish(FormatTopic(PlatformEventToDeviceTopic, device.Id), device.qos, false, Interface2JsonString(response))
	if token.Wait() && token.Error() != nil {
		glog.Error("report file upload file result failed")
		return false
	}

	return true
}

func (device *iotDevice) UploadFile(filename string) bool {
	// 构造获取文件上传URL的请求
	requestParas := FileRequestServiceEventParas{
		FileName: filename,
	}

	serviceEvent := FileRequestServiceEvent{
		Paras: requestParas,
	}
	serviceEvent.ServiceId = "$file_manager"
	serviceEvent.EventTime = GetEventTimeStamp()
	serviceEvent.EventType = "get_upload_url"

	var services []FileRequestServiceEvent
	services = append(services, serviceEvent)
	request := FileRequest{
		Services: services,
	}

	if token := device.client.Publish(FormatTopic(DeviceToPlatformTopic, device.Id), device.qos, false, Interface2JsonString(request));
		token.Wait() && token.Error() != nil {
		glog.Warningf("publish file upload request url failed")
		return false
	}
	glog.Info("publish file upload request url success")

	ticker := time.Tick(time.Second)
	for {
		select {
		case <-ticker:
			_, ok := device.fileUrls[filename+FileActionUpload]
			if ok {
				glog.Infof("platform send file upload url success")
				goto ENDFOR
			}

		}
	}
ENDFOR:

	if len(device.fileUrls[filename+FileActionUpload]) == 0 {
		glog.Errorf("get file upload url failed")
		return false
	}
	glog.Infof("file upload url is %s", device.fileUrls[filename+FileActionUpload])

	//filename = SmartFileName(filename)
	uploadFlag := CreateHttpClient().UploadFile(filename, device.fileUrls[filename+FileActionUpload])
	if !uploadFlag {
		glog.Errorf("upload file failed")
		return false
	}

	response := CreateFileUploadDownLoadResultResponse(filename, FileActionUpload, uploadFlag)

	token := device.client.Publish(FormatTopic(PlatformEventToDeviceTopic, device.Id), device.qos, false, Interface2JsonString(response))
	if token.Wait() && token.Error() != nil {
		glog.Error("report file upload file result failed")
		return false
	}

	return true
}

func (device *iotDevice) createMessageMqttHandler() func(client mqtt.Client, message mqtt.Message) {
	messageHandler := func(client mqtt.Client, message mqtt.Message) {
		go func() {
			msg := &Message{}
			if json.Unmarshal(message.Payload(), msg) != nil {
				glog.Warningf("unmarshal device message failed,device id = %s,message = %s", device.Id, message)
			}

			for _, handler := range device.messageHandlers {
				handler(*msg)
			}
		}()
	}

	return messageHandler
}

func (device *iotDevice) createCommandMqttHandler() func(client mqtt.Client, message mqtt.Message) {
	commandHandler := func(client mqtt.Client, message mqtt.Message) {
		go func() {
			command := &Command{}
			if json.Unmarshal(message.Payload(), command) != nil {
				glog.Warningf("unmarshal platform command failed,device id = %s，message = %s", device.Id, message)
			}

			handleFlag := true
			for _, handler := range device.commandHandlers {
				handleFlag = handleFlag && handler(*command)
			}
			var res string
			if handleFlag {
				glog.Infof("device %s handle command success", device.Id)
				res = Interface2JsonString(CommandResponse{
					ResultCode: 0,
				})
			} else {
				glog.Warningf("device %s handle command failed", device.Id)
				res = Interface2JsonString(CommandResponse{
					ResultCode: 1,
				})
			}
			if token := device.client.Publish(FormatTopic(CommandResponseTopic, device.Id)+GetTopicRequestId(message.Topic()), 1, false, res);
				token.Wait() && token.Error() != nil {
				glog.Infof("device %s send command response failed", device.Id)
			}
		}()

	}

	return commandHandler
}

func (device *iotDevice) createPropertiesSetMqttHandler() func(client mqtt.Client, message mqtt.Message) {
	propertiesSetHandler := func(client mqtt.Client, message mqtt.Message) {
		go func() {
			propertiesSetRequest := &DevicePropertyDownRequest{}
			if json.Unmarshal(message.Payload(), propertiesSetRequest) != nil {
				glog.Warningf("unmarshal platform properties set request failed,device id = %s，message = %s", device.Id, message)
			}

			handleFlag := true
			for _, handler := range device.propertiesSetHandlers {
				handleFlag = handleFlag && handler(*propertiesSetRequest)
			}

			var res string
			response := struct {
				ResultCode byte   `json:"result_code"`
				ResultDesc string `json:"result_desc"`
			}{}
			if handleFlag {
				response.ResultCode = 0
				response.ResultDesc = "Set property success."
				res = Interface2JsonString(response)
			} else {
				response.ResultCode = 1
				response.ResultDesc = "Set properties failed."
				res = Interface2JsonString(response)
			}
			if token := device.client.Publish(FormatTopic(PropertiesSetResponseTopic, device.Id)+GetTopicRequestId(message.Topic()), device.qos, false, res);
				token.Wait() && token.Error() != nil {
				glog.Warningf("unmarshal platform properties set request failed,device id = %s，message = %s", device.Id, message)
			}
		}()
	}

	return propertiesSetHandler
}

// 平台向设备下发的事件callback
func (device *iotDevice) handlePlatformToDeviceData() func(client mqtt.Client, message mqtt.Message) {
	handler := func(client mqtt.Client, message mqtt.Message) {
		data := &Data{}
		if json.Unmarshal(message.Payload(), data) != nil {
			return
		}

		for _, entry := range data.Services {
			eventType := entry.EventType
			switch eventType {
			case "add_sub_device_notify":
				// 子设备添加
				subDeviceInfo := &SubDeviceInfo{}
				if json.Unmarshal([]byte(Interface2JsonString(entry.Paras)), subDeviceInfo) != nil {
					continue
				}
				device.subDevicesAddHandler(*subDeviceInfo)
			case "delete_sub_device_notify":
				subDeviceInfo := &SubDeviceInfo{}
				if json.Unmarshal([]byte(Interface2JsonString(entry.Paras)), subDeviceInfo) != nil {
					continue
				}
				device.subDevicesDeleteHandler(*subDeviceInfo)

			case "get_upload_url_response":
				//获取文件上传URL
				fileResponse := &FileResponseServiceEventParas{}
				if json.Unmarshal([]byte(Interface2JsonString(entry.Paras)), fileResponse) != nil {
					continue
				}
				device.fileUrls[fileResponse.ObjectName+FileActionUpload] = fileResponse.Url
			case "get_download_url_response":
				fileResponse := &FileResponseServiceEventParas{}
				if json.Unmarshal([]byte(Interface2JsonString(entry.Paras)), fileResponse) != nil {
					continue
				}
				device.fileUrls[fileResponse.ObjectName+FileActionDownload] = fileResponse.Url
			case "version_query":
				// 查询软固件版本
				device.reportVersion()

			case "firmware_upgrade":
				upgradeInfo := &UpgradeInfo{}
				if json.Unmarshal([]byte(Interface2JsonString(entry.Paras)), upgradeInfo) != nil {
					continue
				}
				device.upgradeDevice(1, upgradeInfo)

			case "software_upgrade":
				upgradeInfo := &UpgradeInfo{}
				if json.Unmarshal([]byte(Interface2JsonString(entry.Paras)), upgradeInfo) != nil {
					continue
				}
				device.upgradeDevice(0, upgradeInfo)
			}
		}

	}

	return handler
}

func (device *iotDevice) upgradeDevice(upgradeType byte, upgradeInfo *UpgradeInfo) {
	progress := device.deviceUpgradeHandler(upgradeType, *upgradeInfo)
	dataEntry := DataEntry{
		ServiceId: "$ota",
		EventType: "upgrade_progress_report",
		EventTime: GetEventTimeStamp(),
		Paras:     progress,
	}
	data := Data{
		ObjectDeviceId: device.Id,
		Services:       []DataEntry{dataEntry},
	}

	if token := device.client.Publish(FormatTopic(DeviceToPlatformTopic, device.Id), device.qos, false, Interface2JsonString(data));
		token.Wait() && token.Error() != nil {
		glog.Errorf("device %s upgrade failed,type %d", device.Id, upgradeType)
	}
}

func (device *iotDevice) reportVersion() {
	sw, fw := device.swFwVersionReporter()
	dataEntry := DataEntry{
		ServiceId: "$ota",
		EventType: "version_report",
		EventTime: GetEventTimeStamp(),
		Paras: struct {
			SwVersion string `json:"sw_version"`
			FwVersion string `json:"fw_version"`
		}{
			SwVersion: sw,
			FwVersion: fw,
		},
	}
	data := Data{
		ObjectDeviceId: device.Id,
		Services:       []DataEntry{dataEntry},
	}

	device.client.Publish(FormatTopic(DeviceToPlatformTopic, device.Id), device.qos, false, Interface2JsonString(data))
}

func (device *iotDevice) createPropertiesQueryMqttHandler() func(client mqtt.Client, message mqtt.Message) {
	propertiesQueryHandler := func(client mqtt.Client, message mqtt.Message) {
		go func() {
			propertiesQueryRequest := &DevicePropertyQueryRequest{}
			if json.Unmarshal(message.Payload(), propertiesQueryRequest) != nil {
				glog.Warningf("device %s unmarshal properties query request failed %s", device.Id, message)
			}

			queryResult := device.propertyQueryHandler(*propertiesQueryRequest)
			responseToPlatform := Interface2JsonString(queryResult)
			if token := device.client.Publish(FormatTopic(PropertiesQueryResponseTopic, device.Id)+GetTopicRequestId(message.Topic()), device.qos, false, responseToPlatform);
				token.Wait() && token.Error() != nil {
				glog.Warningf("device %s send properties query response failed.", device.Id)
			}
		}()
	}

	return propertiesQueryHandler
}

func (device *iotDevice) createPropertiesQueryResponseMqttHandler() func(client mqtt.Client, message mqtt.Message) {
	propertiesQueryResponseHandler := func(client mqtt.Client, message mqtt.Message) {
		propertiesQueryResponse := &DevicePropertyQueryResponse{}
		if json.Unmarshal(message.Payload(), propertiesQueryResponse) != nil {
			glog.Warningf("device %s unmarshal property response failed,message %s", device.Id, Interface2JsonString(message))
		}
		device.propertiesQueryResponseHandler(*propertiesQueryResponse)
	}

	return propertiesQueryResponseHandler
}

func (device *iotDevice) IsConnected() bool {
	if device.client != nil {
		return device.client.IsConnected()
	}
	return false
}

func (device *iotDevice) SendMessage(message Message) bool {
	messageData := Interface2JsonString(message)
	if token := device.client.Publish(FormatTopic(MessageUpTopic, device.Id), device.qos, false, messageData);
		token.Wait() && token.Error() != nil {
		glog.Warningf("device %s send messagefailed", device.Id)
		return false
	}

	return true
}

func (device *iotDevice) ReportProperties(properties DeviceProperties) bool {
	propertiesData := Interface2JsonString(properties)
	if token := device.client.Publish(FormatTopic(PropertiesUpTopic, device.Id), device.qos, false, propertiesData);
		token.Wait() && token.Error() != nil {
		glog.Warningf("device %s report properties failed", device.Id)
		return false
	}
	return true
}

func (device *iotDevice) BatchReportSubDevicesProperties(service DevicesService) {
	if token := device.client.Publish(FormatTopic(GatewayBatchReportSubDeviceTopic, device.Id), device.qos, false, Interface2JsonString(service));
		token.Wait() && token.Error() != nil {
		glog.Warningf("device %s batch report sub device properties failed", device.Id)
	}
}

func (device *iotDevice) QueryDeviceShadow(query DevicePropertyQueryRequest, handler DevicePropertyQueryResponseHandler) {
	device.propertiesQueryResponseHandler = handler
	requestId := uuid.NewV4()
	if token := device.client.Publish(FormatTopic(DeviceShadowQueryRequestTopic, device.Id)+requestId.String(), device.qos, false, Interface2JsonString(query));
		token.Wait() && token.Error() != nil {
		glog.Warningf("device %s query device shadow data failed,request id = %s", device.Id, requestId)
	}
}

func (device *iotDevice) AddMessageHandler(handler MessageHandler) {
	if handler == nil {
		return
	}
	device.messageHandlers = append(device.messageHandlers, handler)
}

func (device *iotDevice) AddCommandHandler(handler CommandHandler) {
	if handler == nil {
		return
	}

	device.commandHandlers = append(device.commandHandlers, handler)
}

func (device *iotDevice) AddPropertiesSetHandler(handler DevicePropertiesSetHandler) {
	if handler == nil {
		return
	}
	device.propertiesSetHandlers = append(device.propertiesSetHandlers, handler)
}

func (device *iotDevice) SetPropertyQueryHandler(handler DevicePropertyQueryHandler) {
	device.propertyQueryHandler = handler
}

func CreateIotDevice(id, password, servers string) Device {
	return CreateIotDeviceWithQos(id, password, servers, 0)
}

func CreateIotDeviceWithQos(id, password, servers string, qos byte) Device {
	device := &iotDevice{}
	device.Id = id
	device.Password = password
	device.Servers = servers
	device.messageHandlers = []MessageHandler{}
	device.commandHandlers = []CommandHandler{}

	device.fileUrls = map[string]string{}

	device.qos = qos

	return device
}

func (device *iotDevice) Init() bool {

	options := mqtt.NewClientOptions()
	options.AddBroker(device.Servers)
	options.SetClientID(assembleClientId(device))
	options.SetUsername(device.Id)
	options.SetPassword(HmacSha256(device.Password, TimeStamp()))
	options.SetKeepAlive(250 * time.Second)
	options.SetAutoReconnect(true)
	options.SetConnectRetry(true)
	if strings.Contains(device.Servers, "tls") || strings.Contains(device.Servers, "ssl") {
		glog.Infof("server support tls connection")
		if device.ServerCert != nil {
			certPool := x509.NewCertPool()
			certPool.AppendCertsFromPEM(device.ServerCert)
			options.SetTLSConfig(&tls.Config{
				RootCAs:            certPool,
				InsecureSkipVerify: false,
			})
		} else {
			options.SetTLSConfig(&tls.Config{
				InsecureSkipVerify: true,
			})
		}
	} else {
		options.SetTLSConfig(&tls.Config{
			InsecureSkipVerify: true,
		})
	}

	device.client = mqtt.NewClient(options)

	if token := device.client.Connect(); token.Wait() && token.Error() != nil {
		glog.Warningf("device %s init failed,error = %v", device.Id, token.Error())
		return false
	}

	device.subscribeDefaultTopics()

	go logFlush()

	return true

}

func assembleClientId(device *iotDevice) string {
	segments := make([]string, 4)
	segments[0] = device.Id
	segments[1] = "0"
	segments[2] = "0"
	segments[3] = TimeStamp()

	return strings.Join(segments, "_")
}

func logFlush() {
	ticker := time.Tick(5 * time.Second)
	for {
		select {
		case <-ticker:
			glog.Flush()
		}
	}
}

func (device *iotDevice) subscribeDefaultTopics() {
	// 订阅平台命令下发topic
	topic := FormatTopic(CommandDownTopic, device.Id)
	if token := device.client.Subscribe(topic, device.qos, device.createCommandMqttHandler());
		token.Wait() && token.Error() != nil {
		glog.Warningf("device %s subscribe platform send command topic %s failed", device.Id, topic)
		panic(0)
	}

	// 订阅平台消息下发的topic
	topic = FormatTopic(MessageDownTopic, device.Id)
	if token := device.client.Subscribe(topic, device.qos, device.createMessageMqttHandler());
		token.Wait() && token.Error() != nil {
		glog.Warningf("device % subscribe platform send message topic %s failed.", device.Id, topic)
		panic(0)
	}

	// 订阅平台设置设备属性的topic
	topic = FormatTopic(PropertiesSetRequestTopic, device.Id)
	if token := device.client.Subscribe(topic, device.qos, device.createPropertiesSetMqttHandler());
		token.Wait() && token.Error() != nil {
		glog.Warningf("device %s subscribe platform set properties topic %s failed", device.Id, topic)
		panic(0)
	}

	// 订阅平台查询设备属性的topic
	topic = FormatTopic(PropertiesQueryRequestTopic, device.Id)
	if token := device.client.Subscribe(topic, device.qos, device.createPropertiesQueryMqttHandler())
		token.Wait() && token.Error() != nil {
		glog.Warningf("device %s subscriber platform query device properties topic failed %s", device.Id, topic)
		panic(0)
	}

	// 订阅查询设备影子响应的topic
	topic = FormatTopic(DeviceShadowQueryResponseTopic, device.Id)
	if token := device.client.Subscribe(topic, device.qos, device.createPropertiesQueryResponseMqttHandler());
		token.Wait() && token.Error() != nil {
		glog.Warningf("device %s subscribe query device shadow topic %s failed", device.Id, topic)
		panic(0)
	}

	// 订阅平台下发的文件上传和下载URL topic
	topic = FormatTopic(PlatformEventToDeviceTopic, device.Id)
	if token := device.client.Subscribe(topic, device.qos, device.handlePlatformToDeviceData());
		token.Wait() && token.Error() != nil {
		glog.Warningf("device %s subscribe query device shadow topic %s failed", device.Id, topic)
		panic(0)
	}

}