-const INTERVAL time.Duration = 2
-
-var (
- args map[string]*string
-)
-
-func parseArgs() {
- // TODO: arguments should be validated (filename; xm-url; sbi-if; rest-url; rest-port)
- args = make(map[string]*string)
- args["configfile"] = flag.String("configfile", "/etc/rtmgrcfg.json", "Routing manager's configuration file path")
- args["nbi"] = flag.String("nbi", "httpGetter", "Northbound interface module to be used. Valid values are: 'httpGetter | httpRESTful'")
- args["sbi"] = flag.String("sbi", "nngpush", "Southbound interface module to be used. Valid values are: 'nngpush | nngpub'")
- args["rpe"] = flag.String("rpe", "rmrpush", "Route Policy Engine to be used. Valid values are: 'rmrpush | rmrpub'")
- args["sdl"] = flag.String("sdl", "file", "Datastore enginge to be used. Valid values are: 'file'")
- args["xm-url"] = flag.String("xm-url", "http://localhost:3000/xapps", "HTTP URL where xApp Manager exposes the entire xApp List")
- args["nbi-if"] = flag.String("nbi-if", "http://localhost:8888", "Base HTTP URL where routing manager will be listening on")
- args["sbi-if"] = flag.String("sbi-if", "0.0.0.0", "IPv4 address of interface where Southbound socket to be opened")
- args["filename"] = flag.String("filename", "/db/rt.json", "Absolute path of file where the route information to be stored")
- args["loglevel"] = flag.String("loglevel", "INFO", "INFO | WARN | ERROR | DEBUG")
- flag.Parse()
-}
-
-func initRtmgr() (nbi.NbiEngine, sbi.SbiEngine, sdl.SdlEngine, rpe.RpeEngine, error) {
- var err error
- var nbii nbi.NbiEngine
- var sbii sbi.SbiEngine
- var sdli sdl.SdlEngine
- var rpei rpe.RpeEngine
- if nbii, err = nbi.GetNbi(*args["nbi"]); err == nil && nbii != nil {
- if sbii, err = sbi.GetSbi(*args["sbi"]); err == nil && sbii != nil {
- if sdli, err = sdl.GetSdl(*args["sdl"]); err == nil && sdli != nil {
- if rpei, err = rpe.GetRpe(*args["rpe"]); err == nil && rpei != nil {
- return nbii, sbii, sdli, rpei, nil
- }
- }
- }
- }
- return nil, nil, nil, nil, err
-}
-
-func serveSBI(triggerSBI <-chan bool, sbiEngine sbi.SbiEngine, sdlEngine sdl.SdlEngine, rpeEngine rpe.RpeEngine) {
- for {
- if <-triggerSBI {
- data, err := sdlEngine.ReadAll(*args["filename"])
- if err != nil || data == nil {
- rtmgr.Logger.Error("cannot get data from sdl interface due to: " + err.Error())
- continue
- }
- sbiEngine.UpdateEndpoints(data)
- policies := rpeEngine.GeneratePolicies(rtmgr.Eps)
- err = sbiEngine.DistributeAll(policies)
- if err != nil {
- rtmgr.Logger.Error("routing rable cannot be published due to: " + err.Error())
- }
- }
- }
-}
-
-func serve(nbiEngine nbi.NbiEngine, sbiEngine sbi.SbiEngine, sdlEngine sdl.SdlEngine, rpeEngine rpe.RpeEngine) {
-
- triggerSBI := make(chan bool)
-
- nbiErr := nbiEngine.Initialize(*args["xm-url"], *args["nbi-if"], *args["filename"], *args["configfile"],
- sdlEngine, rpeEngine, triggerSBI)
- if nbiErr != nil {
- rtmgr.Logger.Error("fail to initialize nbi due to: " + nbiErr.Error())
- return
- }
-
- err := sbiEngine.Initialize(*args["sbi-if"])
- if err != nil {
- rtmgr.Logger.Info("fail to open pub socket due to: " + err.Error())
- return
- }
- defer nbiEngine.Terminate()
- defer sbiEngine.Terminate()
-
- // This SBI Go routine is trtiggered by periodic main loop and when data is recieved on REST interface.
- go serveSBI(triggerSBI, sbiEngine, sdlEngine, rpeEngine)
-
- for {
- time.Sleep(INTERVAL * time.Second)
- if *args["nbi"] == "httpGetter" {
- data, err := nbiEngine.(*nbi.HttpGetter).FetchAllXapps(*args["xm-url"])
- if err != nil {
- rtmgr.Logger.Error("cannot fetch xapp data dute to: " + err.Error())
- } else if data != nil {
- sdlEngine.WriteXapps(*args["filename"], data)
- }
- }
-
- triggerSBI <- true
- }
-}