Exemple #1
0
func redispublishint(key string, num int) error {
	c, err := database.GetRedisConnection(getredisconnect())
	if err != nil {
		rcon := database.RedisConn{Conn: c}
		rcon.Publish(AppID+":"+key, fmt.Sprintf("%d", num))
		rcon.Flush()
		rcon.Close()
	}
	return err
}
Exemple #2
0
func main() {

	dbcon, err := database.GetDatabaseConnection()
	if err != nil {
		logger.Panicln(err)
	}
	defer dbcon.Close()
	analyser := NewAnalyser(dbcon, redis.NewPool(func() (redis.Conn, error) { return database.GetRedisConnection(getredisconnect()) }, 10))

	restful.DefaultResponseMimeType = restful.MIME_JSON
	restful.DefaultContainer.EnableContentEncoding(true)
	restful.Add(NewAnalyseOGDATRESTService(analyser))

	config := swagger.Config{
		WebServicesUrl:  discoveryhost(),
		ApiPath:         "/swaggerdoc",
		SwaggerPath:     "/doc/",
		SwaggerFilePath: "swagger-ui/dist/",
		WebServices:     restful.RegisteredWebServices()}
	swagger.InstallSwaggerService(config)

	logger.Printf("analyser (%s) listening on port %s\n", AppID, portbinding())
	go func() {
		logger.Fatal(http.ListenAndServe(":"+portbinding(), nil))
	}()

	var datachange, urlchange chan []byte
	var heartbeatchannel chan bool

	populatedatasetinfo := func() {
		if err := analyser.populatedatasetinfo(); err != nil {
			logger.Panicln(err)
		}
	}

	if !isonlyweb() {
		heartbeatchannel = heartbeat(getheartbeatinterval())
		<-heartbeatchannel // Wait for the first heartbeat, so the logging in the database is properly set up

		populatedatasetinfo()

		datachange = analyser.listenredischannel(watcherappid + ":DataChange")
		urlchange = analyser.listenredischannel(watcherappid + ":UrlChange")
	}

	for {
		select {
		case <-urlchange:
			// = REMARK =
			// Naive approach here. If a URLChange or DataChange event is triggered,
			// the whole analytic database will be recreated. It would be better to trace
			// only the affected datasets and only create the relevant statistic.
			// In future, urlchange/datachange might contain a JSON-encoded []byte which contains
			// the affected IDs
			logger.Println("Received URL change notice, re-generating database analysis")
			populatedatasetinfo()
		case <-datachange:
			logger.Println("Received Data change notice, re-generating database analysis")
			populatedatasetinfo()
		case <-heartbeatchannel:
			logger.Println("Idle")
		}
	}
}