Golang Logger.Errorf方法代码示例

func (self *RestAPI) buildNotificationFromKV(reqId string, kv map[string]string, logger log.Logger, remoteAddr string, service string, subs []string) (notif *push.Notification, details *ApiResponseDetails, err error) {
	notif = push.NewEmptyNotification()

	for k, v := range kv {
		if len(v) <= 0 {
			continue
		}
		switch k {
		case "subscriber":
		case "subscribers":
		case "service":
			// three keys need to be ignored
		case "badge":
			if v != "" {
				var e error
				_, e = strconv.Atoi(v)
				if e == nil {
					notif.Data["badge"] = v
				} else {
					notif.Data["badge"] = "0"
				}
			}
		default:
			notif.Data[k] = v
		}
	}

	if notif.IsEmpty() {
		logger.Errorf("RequestId=%v From=%v Service=%v NrSubscribers=%v Subscribers=\"%+v\" EmptyNotification", reqId, remoteAddr, service, len(subs), subs)
		details = &ApiResponseDetails{RequestId: &reqId, From: &remoteAddr, Service: &service, Code: UNIQUSH_ERROR_EMPTY_NOTIFICATION}
		return nil, details, errors.New("empty notification")
	}
	return notif, nil, nil
}

// removeMissingDeliveryPointFromServiceSubscriber removes any associations from a subscription list to a dp with missing subscriptions.
func (r *PushRedisDB) removeMissingDeliveryPointFromServiceSubscriber(service, subscriber, dpName string, logger log.Logger) {
	// Precondition: DELIVERY_POINT_PREFIX + dp was already missing. No need to remove it.
	e0 := r.client.SRem(SERVICE_SUBSCRIBER_TO_DELIVERY_POINTS_PREFIX+service+":"+subscriber, dpName).Err()
	if e0 != nil {
		logger.Errorf("Error cleaning up delivery point with missing data for dp %q service %q FROM user %q's delivery points: %v", dpName, subscriber, service, e0)
	}
	e1 := r.client.Del(DELIVERY_POINT_COUNTER_PREFIX + dpName).Err() // TODO: Err instead
	if e1 != nil {
		logger.Errorf("Error cleaning up count for delivery point with missing data for delivery point %q (while processing subscriber %q, service %q): %v", dpName, subscriber, service, e1)
	}
}

func (self *RestAPI) changeSubscription(kv map[string]string, logger log.Logger, remoteAddr string, issub bool) {
	dp, err := self.psm.BuildDeliveryPointFromMap(kv)
	if err != nil {
		logger.Errorf("Cannot build delivery point: %v", err)
		return
	}
	service, err := getServiceFromMap(kv, true)
	if err != nil {
		logger.Errorf("From=%v Cannot get service name: %v; %v", remoteAddr, service, err)
		return
	}
	subs, err := getSubscribersFromMap(kv, true)
	if err != nil {
		logger.Errorf("From=%v Service=%v Cannot get subscriber: %v", remoteAddr, service, err)
		return
	}

	var psp *PushServiceProvider
	if issub {
		psp, err = self.backend.Subscribe(service, subs[0], dp)
	} else {
		err = self.backend.Unsubscribe(service, subs[0], dp)
	}
	if err != nil {
		logger.Errorf("From=%v Failed: %v", remoteAddr, err)
		return
	}
	if psp == nil {
		logger.Infof("From=%v Service=%v Subscriber=%v DeliveryPoint=%v Success!", remoteAddr, service, subs[0], dp.Name())
	} else {
		logger.Infof("From=%v Service=%v Subscriber=%v PushServiceProvider=%v DeliveryPoint=%v Success!", remoteAddr, service, subs[0], psp.Name(), dp.Name())
	}
}

func (self *RestAPI) querySubscriptions(kv map[string][]string, logger log.Logger) []byte {
	// "subscriber" is a required parameter
	subscriberParam, ok := kv["subscriber"]
	if !ok || len(subscriberParam) == 0 {
		logger.Errorf("Query=Subscriptions NoSubscriber %v", kv)
		return []byte("[]")
	}
	var services []string
	// "services" is an optional parameter that can have one or more services passed in the form of a CSV
	servicesParam, ok := kv["services"]
	if ok && len(servicesParam) > 0 {
		services = strings.Split(servicesParam[0], ",")
	}
	return self.backend.Subscriptions(services, subscriberParam[0], logger)
}

// rebuildServiceSet is used to make sure that the /subscriptions and /psps APIs work properly, on uniqush setups created before those APIs existed.
func (self *RestAPI) rebuildServiceSet(logger log.Logger) []byte {
	err := self.backend.RebuildServiceSet()
	var details ApiResponseDetails
	if err != nil {
		logger.Errorf("Error in /rebuildserviceset: %v", err)
		errorMsg := err.Error()
		details = ApiResponseDetails{
			Code:     UNIQUSH_ERROR_GENERIC,
			ErrorMsg: &errorMsg,
		}
	} else {
		details = ApiResponseDetails{Code: UNIQUSH_SUCCESS}
	}
	json, err := json.Marshal(details)
	if err != nil {
		return []byte("Failed to encode response")
	}
	return json
}

func (self *RestAPI) pushNotification(reqId string, kv map[string]string, perdp map[string][]string, logger log.Logger, remoteAddr string) {
	service, err := getServiceFromMap(kv, true)
	if err != nil {
		logger.Errorf("RequestId=%v From=%v Cannot get service name: %v; %v", reqId, remoteAddr, service, err)
		return
	}
	subs, err := getSubscribersFromMap(kv, false)
	if err != nil {
		logger.Errorf("RequestId=%v From=%v Service=%v Cannot get subscriber: %v", reqId, remoteAddr, service, err)
		return
	}
	if len(subs) == 0 {
		logger.Errorf("RequestId=%v From=%v Service=%v NoSubscriber", reqId, remoteAddr, service)
		return
	}

	notif := NewEmptyNotification()

	for k, v := range kv {
		if len(v) <= 0 {
			continue
		}
		switch k {
		case "subscriber":
		case "subscribers":
		case "service":
			// three keys need to be ignored
		case "badge":
			if v != "" {
				var e error
				_, e = strconv.Atoi(v)
				if e == nil {
					notif.Data["badge"] = v
				} else {
					notif.Data["badge"] = "0"
				}
			}
		default:
			notif.Data[k] = v
		}
	}

	if notif.IsEmpty() {
		logger.Errorf("RequestId=%v From=%v Service=%v EmptyNotification", reqId, remoteAddr, service)
		return
	}

	logger.Infof("RequestId=%v From=%v Service=%v Subscribers=\"%v\"", reqId, remoteAddr, service, subs)

	self.backend.Push(reqId, service, subs, notif, perdp, logger)
	return
}

func (self *RestAPI) pushNotification(reqId string, kv map[string]string, perdp map[string][]string, logger log.Logger, remoteAddr string, handler ApiResponseHandler) {
	service, err := getServiceFromMap(kv, true)
	if err != nil {
		logger.Errorf("RequestId=%v From=%v Cannot get service name: %v; %v", reqId, remoteAddr, service, err)
		handler.AddDetailsToHandler(ApiResponseDetails{RequestId: &reqId, From: &remoteAddr, Service: &service, Code: UNIQUSH_ERROR_CANNOT_GET_SERVICE})
		return
	}
	subs, err := getSubscribersFromMap(kv, false)
	if err != nil {
		logger.Errorf("RequestId=%v From=%v Service=%v Cannot get subscriber: %v", reqId, remoteAddr, service, err)
		handler.AddDetailsToHandler(ApiResponseDetails{RequestId: &reqId, From: &remoteAddr, Service: &service, Code: UNIQUSH_ERROR_CANNOT_GET_SUBSCRIBER})
		return
	}
	if len(subs) == 0 {
		logger.Errorf("RequestId=%v From=%v Service=%v NoSubscriber", reqId, remoteAddr, service)
		handler.AddDetailsToHandler(ApiResponseDetails{RequestId: &reqId, From: &remoteAddr, Service: &service, Code: UNIQUSH_ERROR_NO_SUBSCRIBER})
		return
	}

	notif, details, err := self.buildNotificationFromKV(reqId, kv, logger, remoteAddr, service, subs)
	if err != nil {
		handler.AddDetailsToHandler(*details)
		return
	}

	logger.Infof("RequestId=%v From=%v Service=%v NrSubscribers=%v Subscribers=\"%+v\"", reqId, remoteAddr, service, len(subs), subs)

	self.backend.Push(reqId, remoteAddr, service, subs, notif, perdp, logger, handler)
}

func (self *RestAPI) changeSubscription(kv map[string]string, logger log.Logger, remoteAddr string, issub bool) ApiResponseDetails {
	dp, err := self.psm.BuildDeliveryPointFromMap(kv)
	if err != nil {
		logger.Errorf("Cannot build delivery point: %v", err)
		return ApiResponseDetails{From: &remoteAddr, Code: UNIQUSH_ERROR_BUILD_DELIVERY_POINT, ErrorMsg: strPtrOfErr(err)}
	}
	service, err := getServiceFromMap(kv, true)
	if err != nil {
		logger.Errorf("From=%v Cannot get service name: %v; %v", remoteAddr, service, err)
		return ApiResponseDetails{From: &remoteAddr, Service: &service, Code: UNIQUSH_ERROR_CANNOT_GET_SERVICE, ErrorMsg: strPtrOfErr(err)}
	}
	subs, err := getSubscribersFromMap(kv, true)
	if err != nil {
		logger.Errorf("From=%v Service=%v Cannot get subscriber: %v", remoteAddr, service, err)
		return ApiResponseDetails{From: &remoteAddr, Service: &service, Code: UNIQUSH_ERROR_CANNOT_GET_SUBSCRIBER, ErrorMsg: strPtrOfErr(err)}
	}

	var psp *push.PushServiceProvider
	if issub {
		psp, err = self.backend.Subscribe(service, subs[0], dp)
	} else {
		err = self.backend.Unsubscribe(service, subs[0], dp)
	}
	if err != nil {
		logger.Errorf("From=%v Failed: %v", remoteAddr, err)
		return ApiResponseDetails{From: &remoteAddr, Code: UNIQUSH_ERROR_GENERIC, ErrorMsg: strPtrOfErr(err)}
	}
	dpName := dp.Name()
	if psp == nil {
		logger.Infof("From=%v Service=%v Subscriber=%v DeliveryPoint=%v Success!", remoteAddr, service, subs[0], dpName)
		return ApiResponseDetails{From: &remoteAddr, Service: &service, Subscriber: &subs[0], DeliveryPoint: &dpName, Code: UNIQUSH_SUCCESS}
	} else {
		pspName := psp.Name()
		logger.Infof("From=%v Service=%v Subscriber=%v PushServiceProvider=%v DeliveryPoint=%v Success!", remoteAddr, service, subs[0], pspName, dpName)
		return ApiResponseDetails{From: &remoteAddr, Service: &service, Subscriber: &subs[0], DeliveryPoint: &dpName, PushServiceProvider: &pspName, Code: UNIQUSH_SUCCESS}
	}
}

func (self *RestAPI) changePushServiceProvider(kv map[string]string, logger log.Logger, remoteAddr string, add bool) {
	psp, err := self.psm.BuildPushServiceProviderFromMap(kv)
	if err != nil {
		logger.Errorf("From=%v Cannot build push service provider: %v", remoteAddr, err)
		return
	}
	service, err := getServiceFromMap(kv, true)
	if err != nil {
		logger.Errorf("From=%v Cannot get service name: %v; %v", remoteAddr, service, err)
		return
	}
	if add {
		err = self.backend.AddPushServiceProvider(service, psp)
	} else {
		err = self.backend.RemovePushServiceProvider(service, psp)
	}
	if err != nil {
		logger.Errorf("From=%v Failed: %v", remoteAddr, err)
		return
	}
	logger.Infof("From=%v Service=%v PushServiceProvider=%v Success!", remoteAddr, service, psp.Name())
	return
}

func (self *RestAPI) changePushServiceProvider(kv map[string]string, logger log.Logger, remoteAddr string, add bool) ApiResponseDetails {
	psp, err := self.psm.BuildPushServiceProviderFromMap(kv)
	if err != nil {
		logger.Errorf("From=%v Cannot build push service provider: %v", remoteAddr, err)
		return ApiResponseDetails{From: &remoteAddr, Code: UNIQUSH_ERROR_BUILD_PUSH_SERVICE_PROVIDER, ErrorMsg: strPtrOfErr(err)}
	}
	service, err := getServiceFromMap(kv, true)
	if err != nil {
		logger.Errorf("From=%v Cannot get service name: %v; %v", remoteAddr, service, err)
		return ApiResponseDetails{From: &remoteAddr, Service: &service, Code: UNIQUSH_ERROR_CANNOT_GET_SERVICE, ErrorMsg: strPtrOfErr(err)}
	}
	if add {
		err = self.backend.AddPushServiceProvider(service, psp)
	} else {
		err = self.backend.RemovePushServiceProvider(service, psp)
	}
	if err != nil {
		logger.Errorf("From=%v Failed: %v", remoteAddr, err)
		return ApiResponseDetails{From: &remoteAddr, Code: UNIQUSH_ERROR_GENERIC, ErrorMsg: strPtrOfErr(err)}
	}
	pspName := psp.Name()
	logger.Infof("From=%v Service=%v PushServiceProvider=%v Success!", remoteAddr, service, pspName)
	return ApiResponseDetails{From: &remoteAddr, Service: &service, PushServiceProvider: &pspName, Code: UNIQUSH_SUCCESS}
}

func (r *PushRedisDB) GetSubscriptions(queryServices []string, subscriber string, logger log.Logger) ([]map[string]string, error) {
	if len(queryServices) == 0 {
		definedServices, err := r.GetServiceNames()
		if err != nil {
			return nil, fmt.Errorf("GetSubscriptions: %v", err)
		}
		queryServices = definedServices
	}

	var serviceForDeliveryPointNames []string
	var deliveryPointNames []string
	for _, service := range queryServices {
		if service == "" {
			logger.Errorf("empty service defined")
			continue
		}

		deliveryPoints, err := r.client.SMembers(SERVICE_SUBSCRIBER_TO_DELIVERY_POINTS_PREFIX + service + ":" + subscriber).Result()

		if err != nil {
			return nil, fmt.Errorf("Could not get subscriber information")
		}
		if len(deliveryPoints) == 0 {
			// it is OK to not have delivery points for a service
			continue
		}
		for _, deliveryPointName := range deliveryPoints {
			deliveryPointNames = append(deliveryPointNames, deliveryPointName)
			serviceForDeliveryPointNames = append(serviceForDeliveryPointNames, service)
		}
	}

	if len(deliveryPointNames) == 0 {
		// Return empty map without error.
		return make([]map[string]string, 0), nil
	}

	deliveryPointData, err := r.mgetRawDeliveryPoints(deliveryPointNames...)
	if err != nil {
		return nil, err
	}

	// Unserialize the subscriptions. If there are any invalid subscriptions, remove them and log it.
	// serviceForDeliveryPointNames, deliveryPointNames, and deliveryPointData all use the same index i.
	var subscriptions []map[string]string
	for i, data := range deliveryPointData {
		dpName := deliveryPointNames[i]
		service := serviceForDeliveryPointNames[i]
		if data != nil {
			subscriptionData, err := push.UnserializeSubscription(data)
			if err != nil {
				logger.Errorf("Error unserializing subscription for delivery point data for dp %q user %q service %q data %v: %v", dpName, subscriber, service, subscriptionData, err)
				continue
			}
			subscriptions = append(subscriptions, subscriptionData)
		} else {
			logger.Errorf("Redis error fetching subscriber delivery point data for dp %q user %q service %q, removing...", dpName, subscriber, service)
			// The multi-get did not encounter an error, so this key is missing.
			// Try to remove this delivery point as cleanly as possible, removing counts, etc.
			r.removeMissingDeliveryPointFromServiceSubscriber(service, subscriber, dpName, logger)
		}
	}

	return subscriptions, nil
}