Пример #1
0
func RouteEvent(event models.NodeEvent) {
	reqId, err := uuid.New()
	if err != nil {
		logger.Get().Error("Error Creating the RequestId. error: %v", err)
		return
	}
	ctxt := fmt.Sprintf("%v:%v", models.ENGINE_NAME, reqId.String())

	var e models.AppEvent
	e.Timestamp = event.Timestamp
	e.Tags = event.Tags
	e.Message = event.Message
	eventId, err := uuid.New()
	if err != nil {
		logger.Get().Error("%s-Uuid generation for the event failed for node: %s. error: %v", ctxt, event.Node, err)
		return
	}

	e.EventId = *eventId
	// querying DB to get node ID and Cluster ID for the event
	sessionCopy := db.GetDatastore().Copy()
	defer sessionCopy.Close()
	var node models.Node
	coll := sessionCopy.DB(conf.SystemConfig.DBConfig.Database).C(models.COLL_NAME_STORAGE_NODES)
	if err := coll.Find(bson.M{"hostname": event.Node}).One(&node); err != nil {
		logger.Get().Error("%s-Node information read from DB failed for node: %s. error: %v", ctxt, event.Node, err)
		return
	}

	// Push the event to DB only if the node is managed
	if node.Hostname == "" || !node.Enabled {
		return
	}
	e.ClusterId = node.ClusterId
	e.NodeId = node.NodeId
	e.NodeName = node.Hostname

	// Invoking the event handler
	for tag, handler := range handlermap {
		if match, err := filepath.Match(tag, event.Tag); err == nil {
			if match {
				if e, err = handler.(func(models.AppEvent, string) (models.AppEvent, error))(e, ctxt); err != nil {
					logger.Get().Error("%s-Event Handling Failed for event for node: %s. error: %v", ctxt, node.Hostname, err)
					return
				}
				if e.Name == "" {
					return
				}
				if err := common_event.AuditLog(ctxt, e, skyring.GetDbProvider()); err != nil {
					logger.Get().Error("%s-Could not persist the event to DB for node: %s. error: %v", ctxt, node.Hostname, err)
					return
				} else {
					// For upcoming any new event , broadcasting to all connected clients
					eventObj, err := json.Marshal(e)
					if err != nil {
						logger.Get().Error("%s-Error marshalling the event data for node: %s. error: %v", ctxt, node.Hostname, err)
					}
					GetBroadcaster().chBroadcast <- string(eventObj)
					return
				}
			}
		} else {
			logger.Get().Error("%s-Error while maping handler for event for node: %s. error: %v", ctxt, node.Hostname, err)
			return
		}
	}
	e.Name = event.Tag
	app := skyring.GetApp()
	if err := app.RouteProviderEvents(ctxt, e); err != nil {
		logger.Get().Error("%s-Event:%s could not be handled for node: %s. error: %v", ctxt, event.Tag, node.Hostname, err)
	}
	return
}