X-Git-Url: https://gerrit.o-ran-sc.org/r/gitweb?a=blobdiff_plain;f=pkg%2Fnbi%2Fhttprestful.go;h=e10f42b4a31b6a0d1ead3270dc7f5fb58a9ec9d8;hb=8f7ca65ce6b2691e08bb3496c14fae88e32ad973;hp=336e61501d9fd175612c9d99a771d24c6dc98b5b;hpb=edd45717efffb32e407206a647f38579757f4908;p=ric-plt%2Frtmgr.git diff --git a/pkg/nbi/httprestful.go b/pkg/nbi/httprestful.go index 336e615..e10f42b 100644 --- a/pkg/nbi/httprestful.go +++ b/pkg/nbi/httprestful.go @@ -14,6 +14,11 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. + + + This source code is part of the near-RT RIC (RAN Intelligent Controller) + platform project (RICP). + ================================================================================== */ /* @@ -25,91 +30,123 @@ package nbi +//noinspection GoUnresolvedReference,GoUnresolvedReference,GoUnresolvedReference,GoUnresolvedReference,GoUnresolvedReference,GoUnresolvedReference import ( + "encoding/json" + "errors" "fmt" - "os" - "time" + xfmodel "gerrit.o-ran-sc.org/r/ric-plt/xapp-frame/pkg/models" + "gerrit.o-ran-sc.org/r/ric-plt/xapp-frame/pkg/xapp" + "github.com/go-openapi/loads" + "github.com/go-openapi/runtime/middleware" + "net" "net/url" - "strconv" - "errors" - "encoding/json" - "routing-manager/pkg/rtmgr" - "routing-manager/pkg/rpe" - "routing-manager/pkg/sdl" + "os" "routing-manager/pkg/models" "routing-manager/pkg/restapi" "routing-manager/pkg/restapi/operations" - "github.com/go-openapi/runtime/middleware" + "routing-manager/pkg/restapi/operations/debug" "routing-manager/pkg/restapi/operations/handle" - loads "github.com/go-openapi/loads" + "routing-manager/pkg/rpe" + "routing-manager/pkg/rtmgr" + "routing-manager/pkg/sdl" + "strconv" + "strings" + "sync" + "time" ) -//var myClient = &http.Client{Timeout: 1 * time.Second} - type HttpRestful struct { - NbiEngine + Engine LaunchRest LaunchRestHandler - RecvXappCallbackData RecvXappCallbackDataHandler - ProvideXappHandleHandlerImpl ProvideXappHandleHandlerImpl RetrieveStartupData RetrieveStartupDataHandler } func NewHttpRestful() *HttpRestful { instance := new(HttpRestful) instance.LaunchRest = launchRest - instance.RecvXappCallbackData = recvXappCallbackData - instance.ProvideXappHandleHandlerImpl = provideXappHandleHandlerImpl instance.RetrieveStartupData = retrieveStartupData return instance } -// ToDo: Use Range over channel. Read and return only the latest one. -func recvXappCallbackData(dataChannel <-chan *models.XappCallbackData) (*[]rtmgr.XApp, error) { - var xappData *models.XappCallbackData - // Drain the channel as we are only looking for the latest value until - // xapp manager sends all xapp data with every request. - length := len(dataChannel) - //rtmgr.Logger.Info(length) - for i := 0; i <= length; i++ { - rtmgr.Logger.Info("data received") - // If no data received from the REST, it blocks. - xappData = <-dataChannel - } +func recvXappCallbackData(xappData *models.XappCallbackData) (*[]rtmgr.XApp, error) { if nil != xappData { - var xapps []rtmgr.XApp - err := json.Unmarshal([]byte(xappData.XApps), &xapps) + var xapps []rtmgr.XApp + err := json.Unmarshal([]byte(xappData.XApps), &xapps) return &xapps, err } else { - rtmgr.Logger.Info("No data") + xapp.Logger.Info("No data") } - rtmgr.Logger.Debug("Nothing received on the Http interface") + xapp.Logger.Debug("Nothing received on the Http interface") return nil, nil +} + +func recvNewE2Tdata(e2tData *models.E2tData) (*rtmgr.E2TInstance, string, error) { + var str string + xapp.Logger.Info("data received") + + if nil != e2tData { + + e2tinst := rtmgr.E2TInstance{ + Ranlist: make([]string, len(e2tData.RanNamelist)), + } + + e2tinst.Fqdn = *e2tData.E2TAddress + e2tinst.Name = "E2TERMINST" + copy(e2tinst.Ranlist, e2tData.RanNamelist) + if len(e2tData.RanNamelist) > 0 { + var meidar string + for _, meid := range e2tData.RanNamelist { + meidar += meid + " " + } + str = "mme_ar|" + *e2tData.E2TAddress + "|" + strings.TrimSuffix(meidar, " ") + } + return &e2tinst, str, nil + + } else { + xapp.Logger.Info("No data") + } + xapp.Logger.Debug("Nothing received on the Http interface") + return nil, str, nil } func validateXappCallbackData(callbackData *models.XappCallbackData) error { if len(callbackData.XApps) == 0 { - return fmt.Errorf("Invalid Data field: \"%s\"", callbackData.XApps) + return fmt.Errorf("invalid Data field: \"%s\"", callbackData.XApps) } var xapps []rtmgr.XApp - err := json.Unmarshal([]byte(callbackData.XApps), &xapps) - if err != nil { - return fmt.Errorf("Unmarshal failed: \"%s\"", err.Error()) + err := json.Unmarshal([]byte(callbackData.XApps), &xapps) + if err != nil { + return fmt.Errorf("unmarshal failed: \"%s\"", err.Error()) } return nil } -func provideXappHandleHandlerImpl(datach chan<- *models.XappCallbackData, data *models.XappCallbackData) error { +func provideXappHandleHandlerImpl(data *models.XappCallbackData) error { if data != nil { - rtmgr.Logger.Debug("Received callback data") + xapp.Logger.Debug("Received callback data") } err := validateXappCallbackData(data) if err != nil { - rtmgr.Logger.Warn("XApp callback data validation failed: "+err.Error()) + xapp.Logger.Warn("XApp callback data validation failed: " + err.Error()) return err } else { - datach<-data + appdata, err := recvXappCallbackData(data) + if err != nil { + xapp.Logger.Error("cannot get data from rest api dute to: " + err.Error()) + } else if appdata != nil { + xapp.Logger.Debug("Fetching all xApps deployed in xApp Manager through GET operation.") + alldata, err1 := httpGetXApps(xapp.Config.GetString("xmurl")) + if alldata != nil && err1 == nil { + m.Lock() + sdlEngine.WriteXApps(xapp.Config.GetString("rtfile"), alldata) + m.Unlock() + return sendRoutesToAll() + } + } + return nil } } @@ -125,23 +162,74 @@ func validateXappSubscriptionData(data *models.XappSubscriptionData) error { return err } -func provideXappSubscriptionHandleImpl(subchan chan<- *models.XappSubscriptionData, - data *models.XappSubscriptionData) error { - rtmgr.Logger.Debug("Invoked provideXappSubscriptionHandleImpl") +func validateE2tData(data *models.E2tData) error { + + e2taddress_key := *data.E2TAddress + if e2taddress_key == "" { + return fmt.Errorf("E2TAddress is empty!!!") + } + stringSlice := strings.Split(e2taddress_key, ":") + if len(stringSlice) == 1 { + return fmt.Errorf("E2T E2TAddress is not a proper format like ip:port, %v", e2taddress_key) + } + + _, err := net.LookupIP(stringSlice[0]) + if err != nil { + return fmt.Errorf("E2T E2TAddress DNS look up failed, E2TAddress: %v", stringSlice[0]) + } + + if checkValidaE2TAddress(e2taddress_key) { + return fmt.Errorf("E2TAddress already exist!!!, E2TAddress: %v", e2taddress_key) + } + + return nil +} + +func validateDeleteE2tData(data *models.E2tDeleteData) error { + + if *data.E2TAddress == "" { + return fmt.Errorf("E2TAddress is empty!!!") + } + + for _, element := range data.RanAssocList { + e2taddress_key := *element.E2TAddress + stringSlice := strings.Split(e2taddress_key, ":") + + if len(stringSlice) == 1 { + return fmt.Errorf("E2T Delete - RanAssocList E2TAddress is not a proper format like ip:port, %v", e2taddress_key) + } + + if !checkValidaE2TAddress(e2taddress_key) { + return fmt.Errorf("E2TAddress doesn't exist!!!, E2TAddress: %v", e2taddress_key) + } + + } + return nil +} + +func checkValidaE2TAddress(e2taddress string) bool { + + _, exist := rtmgr.Eps[e2taddress] + return exist + +} + +func provideXappSubscriptionHandleImpl(data *models.XappSubscriptionData) error { + xapp.Logger.Debug("Invoked provideXappSubscriptionHandleImpl") err := validateXappSubscriptionData(data) if err != nil { - rtmgr.Logger.Error(err.Error()) + xapp.Logger.Error(err.Error()) return err } - subchan <- data - //var val = string(*data.Address + ":" + strconv.Itoa(int(*data.Port))) - rtmgr.Logger.Debug("Endpoints: %v", rtmgr.Eps) - return nil + xapp.Logger.Debug("received XApp subscription data") + addSubscription(&rtmgr.Subs, data) + xapp.Logger.Debug("Endpoints: %v", rtmgr.Eps) + return sendRoutesToAll() } func subscriptionExists(data *models.XappSubscriptionData) bool { present := false - sub := rtmgr.Subscription{SubID:*data.SubscriptionID, Fqdn:*data.Address, Port:*data.Port,} + sub := rtmgr.Subscription{SubID: *data.SubscriptionID, Fqdn: *data.Address, Port: *data.Port} for _, elem := range rtmgr.Subs { if elem == sub { present = true @@ -151,63 +239,186 @@ func subscriptionExists(data *models.XappSubscriptionData) bool { return present } -func deleteXappSubscriptionHandleImpl(subdelchan chan<- *models.XappSubscriptionData, - data *models.XappSubscriptionData) error { - rtmgr.Logger.Debug("Invoked deleteXappSubscriptionHandleImpl") +func deleteXappSubscriptionHandleImpl(data *models.XappSubscriptionData) error { + xapp.Logger.Debug("Invoked deleteXappSubscriptionHandleImpl") err := validateXappSubscriptionData(data) if err != nil { - rtmgr.Logger.Error(err.Error()) + xapp.Logger.Error(err.Error()) return err } if !subscriptionExists(data) { - rtmgr.Logger.Warn("Subscription not found: %d", *data.SubscriptionID) - err := fmt.Errorf("Subscription not found: %d", *data.SubscriptionID) + xapp.Logger.Warn("subscription not found: %d", *data.SubscriptionID) + err := fmt.Errorf("subscription not found: %d", *data.SubscriptionID) return err } - subdelchan <- data + xapp.Logger.Debug("received XApp subscription delete data") + delSubscription(&rtmgr.Subs, data) + return sendRoutesToAll() + +} + +func updateXappSubscriptionHandleImpl(data *models.XappList, subid uint16) error { + xapp.Logger.Debug("Invoked updateXappSubscriptionHandleImpl") + + var fqdnlist []rtmgr.FqDn + for _, item := range *data { + fqdnlist = append(fqdnlist, rtmgr.FqDn(*item)) + } + xapplist := rtmgr.XappList{SubscriptionID: subid, FqdnList: fqdnlist} + var subdata models.XappSubscriptionData + var id int32 + id = int32(subid) + subdata.SubscriptionID = &id + for _, items := range fqdnlist { + subdata.Address = items.Address + subdata.Port = items.Port + err := validateXappSubscriptionData(&subdata) + if err != nil { + xapp.Logger.Error(err.Error()) + return err + } + } + xapp.Logger.Debug("received XApp subscription Merge data") + updateSubscription(&xapplist) + return sendRoutesToAll() +} + +func createNewE2tHandleHandlerImpl(data *models.E2tData) error { + xapp.Logger.Debug("Invoked createNewE2tHandleHandlerImpl") + err := validateE2tData(data) + if err != nil { + xapp.Logger.Error(err.Error()) + return err + } + //e2taddchan <- data + e2data, meiddata, _ := recvNewE2Tdata(data) + xapp.Logger.Debug("received create New E2T data") + m.Lock() + sdlEngine.WriteNewE2TInstance(xapp.Config.GetString("rtfile"), e2data, meiddata) + m.Unlock() + return sendRoutesToAll() + +} + +func validateE2TAddressRANListData(assRanE2tData models.RanE2tMap) error { + + xapp.Logger.Debug("Invoked.validateE2TAddressRANListData : %v", assRanE2tData) + + for _, element := range assRanE2tData { + if *element.E2TAddress == "" { + return fmt.Errorf("E2T Instance - E2TAddress is empty!!!") + } + + e2taddress_key := *element.E2TAddress + if !checkValidaE2TAddress(e2taddress_key) { + return fmt.Errorf("E2TAddress doesn't exist!!!, E2TAddress: %v", e2taddress_key) + } + + } return nil } -func launchRest(nbiif *string, datach chan<- *models.XappCallbackData, subchan chan<- *models.XappSubscriptionData, - subdelchan chan<- *models.XappSubscriptionData) { - swaggerSpec, err := loads.Embedded(restapi.SwaggerJSON, restapi.FlatSwaggerJSON) - if err != nil { - //log.Fatalln(err) - rtmgr.Logger.Error(err.Error()) - os.Exit(1) - } +func associateRanToE2THandlerImpl(data models.RanE2tMap) error { + xapp.Logger.Debug("Invoked associateRanToE2THandlerImpl") + err := validateE2TAddressRANListData(data) + if err != nil { + xapp.Logger.Warn(" Association of RAN to E2T Instance data validation failed: " + err.Error()) + return err + } + xapp.Logger.Debug("received associate RAN list to E2T instance mapping from E2 Manager") + m.Lock() + sdlEngine.WriteAssRANToE2TInstance(xapp.Config.GetString("rtfile"), data) + m.Unlock() + return sendRoutesToAll() + +} + +func disassociateRanToE2THandlerImpl(data models.RanE2tMap) error { + xapp.Logger.Debug("Invoked disassociateRanToE2THandlerImpl") + err := validateE2TAddressRANListData(data) + if err != nil { + xapp.Logger.Warn(" Disassociation of RAN List from E2T Instance data validation failed: " + err.Error()) + return err + } + xapp.Logger.Debug("received disassociate RANs from E2T instance") + m.Lock() + sdlEngine.WriteDisAssRANFromE2TInstance(xapp.Config.GetString("rtfile"), data) + m.Unlock() + return sendRoutesToAll() + +} + +func deleteE2tHandleHandlerImpl(data *models.E2tDeleteData) error { + xapp.Logger.Debug("Invoked deleteE2tHandleHandlerImpl") + + err := validateDeleteE2tData(data) + if err != nil { + xapp.Logger.Error(err.Error()) + return err + } + m.Lock() + sdlEngine.WriteDeleteE2TInstance(xapp.Config.GetString("rtfile"), data) + m.Unlock() + return sendRoutesToAll() + +} + +func dumpDebugData() (models.Debuginfo, error) { + var response models.Debuginfo + sdlEngine, _ := sdl.GetSdl("file") + rpeEngine, _ := rpe.GetRpe("rmrpush") + data, err := sdlEngine.ReadAll(xapp.Config.GetString("rtfile")) + if err != nil || data == nil { + xapp.Logger.Error("Cannot get data from sdl interface due to: " + err.Error()) + return response, err + } + response.RouteTable = *rpeEngine.GeneratePolicies(rtmgr.Eps, data) + + prettyJSON, err := json.MarshalIndent(data, "", "") + response.RouteConfigs = string(prettyJSON) + + return response, err +} + +func launchRest(nbiif *string){ + swaggerSpec, err := loads.Embedded(restapi.SwaggerJSON, restapi.FlatSwaggerJSON) + if err != nil { + //log.Fatalln(err) + xapp.Logger.Error(err.Error()) + os.Exit(1) + } nbiUrl, err := url.Parse(*nbiif) if err != nil { - rtmgr.Logger.Error(err.Error()) + xapp.Logger.Error(err.Error()) os.Exit(1) } - api := operations.NewRoutingManagerAPI(swaggerSpec) - server := restapi.NewServer(api) - defer server.Shutdown() - - server.Port, err = strconv.Atoi(nbiUrl.Port()) - if err != nil { - rtmgr.Logger.Error("Invalid NBI RestAPI port") - os.Exit(1) - } - server.Host = "0.0.0.0" - // set handlers - api.HandleProvideXappHandleHandler = handle.ProvideXappHandleHandlerFunc( - func(params handle.ProvideXappHandleParams) middleware.Responder { - rtmgr.Logger.Info("Data received on Http interface") - err := provideXappHandleHandlerImpl(datach, params.XappCallbackData) - if err != nil { - rtmgr.Logger.Error("Invalid XApp callback data: "+err.Error()) - return handle.NewProvideXappHandleBadRequest() - } else { - return handle.NewGetHandlesOK() - } - }) + api := operations.NewRoutingManagerAPI(swaggerSpec) + server := restapi.NewServer(api) + defer server.Shutdown() + + server.Port, err = strconv.Atoi(nbiUrl.Port()) + if err != nil { + xapp.Logger.Error("Invalid NBI RestAPI port") + os.Exit(1) + } + server.Host = "0.0.0.0" + // set handlers + api.HandleProvideXappHandleHandler = handle.ProvideXappHandleHandlerFunc( + func(params handle.ProvideXappHandleParams) middleware.Responder { + xapp.Logger.Info("Data received on Http interface") + err := provideXappHandleHandlerImpl(params.XappCallbackData) + if err != nil { + xapp.Logger.Error("Invalid XApp callback data: " + err.Error()) + return handle.NewProvideXappHandleBadRequest() + } else { + return handle.NewGetHandlesOK() + } + }) api.HandleProvideXappSubscriptionHandleHandler = handle.ProvideXappSubscriptionHandleHandlerFunc( func(params handle.ProvideXappSubscriptionHandleParams) middleware.Responder { - err := provideXappSubscriptionHandleImpl(subchan, params.XappSubscriptionData) + err := provideXappSubscriptionHandleImpl(params.XappSubscriptionData) if err != nil { return handle.NewProvideXappSubscriptionHandleBadRequest() } else { @@ -216,126 +427,289 @@ func launchRest(nbiif *string, datach chan<- *models.XappCallbackData, subchan c }) api.HandleDeleteXappSubscriptionHandleHandler = handle.DeleteXappSubscriptionHandleHandlerFunc( func(params handle.DeleteXappSubscriptionHandleParams) middleware.Responder { - err := deleteXappSubscriptionHandleImpl(subdelchan, params.XappSubscriptionData) + err := deleteXappSubscriptionHandleImpl(params.XappSubscriptionData) if err != nil { return handle.NewDeleteXappSubscriptionHandleNoContent() } else { return handle.NewGetHandlesOK() } }) - // start to serve API - rtmgr.Logger.Info("Starting the HTTP Rest service") - if err := server.Serve(); err != nil { - rtmgr.Logger.Error(err.Error()) - } -} - -func httpGetXapps(xmurl string) (*[]rtmgr.XApp, error) { - rtmgr.Logger.Info("Invoked httpgetter.fetchXappList: " + xmurl) - r, err := myClient.Get(xmurl) - if err != nil { - return nil, err - } - defer r.Body.Close() - - if r.StatusCode == 200 { - rtmgr.Logger.Debug("http client raw response: %v", r) - var xapps []rtmgr.XApp - err = json.NewDecoder(r.Body).Decode(&xapps) - if err != nil { - rtmgr.Logger.Warn("Json decode failed: " + err.Error()) - } - rtmgr.Logger.Info("HTTP GET: OK") - rtmgr.Logger.Debug("httpgetter.fetchXappList returns: %v", xapps) - return &xapps, err - } - rtmgr.Logger.Warn("httpgetter got an unexpected http status code: %v", r.StatusCode) - return nil, nil -} - -func retrieveStartupData(xmurl string, nbiif string, fileName string, configfile string, sdlEngine sdl.SdlEngine) error { - var readErr error - var maxRetries = 10 - - for i := 1; i <= maxRetries; i++ { - time.Sleep(2 * time.Second) - - xappData, err := httpGetXapps(xmurl) - - if xappData != nil && err == nil { - pcData, confErr := rtmgr.GetPlatformComponents(configfile) - if confErr != nil { - rtmgr.Logger.Error(confErr.Error()) - return confErr - } - - rtmgr.Logger.Info("Recieved intial xapp data and platform data, writing into SDL.") - // Combine the xapps data and platform data before writing to the SDL - ricData := &rtmgr.RicComponents{Xapps: *xappData, Pcs: *pcData} - - writeErr := sdlEngine.WriteAll(fileName, ricData) - if writeErr != nil { - rtmgr.Logger.Error(writeErr.Error()) - } - // post subscription req to appmgr - readErr = PostSubReq(xmurl, nbiif) - if readErr == nil { - return nil - } - } else if err == nil { - readErr = errors.New("Unexpected HTTP status code") - } else { - rtmgr.Logger.Warn("cannot get xapp data due to: " + err.Error()) - readErr = err - } - } - return readErr + api.HandleUpdateXappSubscriptionHandleHandler = handle.UpdateXappSubscriptionHandleHandlerFunc( + func(params handle.UpdateXappSubscriptionHandleParams) middleware.Responder { + err := updateXappSubscriptionHandleImpl(¶ms.XappList, params.SubscriptionID) + if err != nil { + return handle.NewUpdateXappSubscriptionHandleBadRequest() + } else { + return handle.NewUpdateXappSubscriptionHandleCreated() + } + }) + api.HandleCreateNewE2tHandleHandler = handle.CreateNewE2tHandleHandlerFunc( + func(params handle.CreateNewE2tHandleParams) middleware.Responder { + err := createNewE2tHandleHandlerImpl(params.E2tData) + if err != nil { + return handle.NewCreateNewE2tHandleBadRequest() + } else { + return handle.NewCreateNewE2tHandleCreated() + } + }) + + api.HandleAssociateRanToE2tHandleHandler = handle.AssociateRanToE2tHandleHandlerFunc( + func(params handle.AssociateRanToE2tHandleParams) middleware.Responder { + err := associateRanToE2THandlerImpl(params.RanE2tList) + if err != nil { + return handle.NewAssociateRanToE2tHandleBadRequest() + } else { + return handle.NewAssociateRanToE2tHandleCreated() + } + }) + + api.HandleDissociateRanHandler = handle.DissociateRanHandlerFunc( + func(params handle.DissociateRanParams) middleware.Responder { + err := disassociateRanToE2THandlerImpl(params.DissociateList) + if err != nil { + return handle.NewDissociateRanBadRequest() + } else { + return handle.NewDissociateRanCreated() + } + }) + + api.HandleDeleteE2tHandleHandler = handle.DeleteE2tHandleHandlerFunc( + func(params handle.DeleteE2tHandleParams) middleware.Responder { + err := deleteE2tHandleHandlerImpl(params.E2tData) + if err != nil { + return handle.NewDeleteE2tHandleBadRequest() + } else { + return handle.NewDeleteE2tHandleCreated() + } + }) + api.DebugGetDebuginfoHandler = debug.GetDebuginfoHandlerFunc( + func(params debug.GetDebuginfoParams) middleware.Responder { + response, err := dumpDebugData() + if err != nil { + return debug.NewGetDebuginfoCreated() + } else { + return debug.NewGetDebuginfoOK().WithPayload(&response) + } + }) + api.HandleAddRmrRouteHandler = handle.AddRmrRouteHandlerFunc( + func(params handle.AddRmrRouteParams) middleware.Responder { + err := adddelrmrroute(params.RoutesList,true) + if err != nil { + return handle.NewAddRmrRouteBadRequest() + } else { + return handle.NewAddRmrRouteCreated() + } + + }) + api.HandleDelRmrRouteHandler = handle.DelRmrRouteHandlerFunc( + func(params handle.DelRmrRouteParams) middleware.Responder { + err := adddelrmrroute(params.RoutesList,false) + if err != nil { + return handle.NewDelRmrRouteBadRequest() + } else { + return handle.NewDelRmrRouteCreated() + } + }) + + // start to serve API + xapp.Logger.Info("Starting the HTTP Rest service") + if err := server.Serve(); err != nil { + xapp.Logger.Error(err.Error()) + } } -func (r *HttpRestful) Initialize(xmurl string, nbiif string, fileName string, configfile string, - sdlEngine sdl.SdlEngine, rpeEngine rpe.RpeEngine, triggerSBI chan<- bool) error { - err := r.RetrieveStartupData(xmurl, nbiif, fileName, configfile, sdlEngine) +func httpGetXApps(xmurl string) (*[]rtmgr.XApp, error) { + xapp.Logger.Info("Invoked httprestful.httpGetXApps: " + xmurl) + r, err := myClient.Get(xmurl) if err != nil { - rtmgr.Logger.Error("Exiting as nbi failed to get the intial startup data from the xapp manager: " + err.Error()) - return err + return nil, err } + defer r.Body.Close() - datach := make(chan *models.XappCallbackData, 10) - subschan := make(chan *models.XappSubscriptionData, 10) - subdelchan := make(chan *models.XappSubscriptionData, 10) - rtmgr.Logger.Info("Launching Rest Http service") - go func() { - r.LaunchRest(&nbiif, datach, subschan, subdelchan) - }() + if r.StatusCode == 200 { + xapp.Logger.Debug("http client raw response: %v", r) + var xapps []rtmgr.XApp + err = json.NewDecoder(r.Body).Decode(&xapps) + if err != nil { + xapp.Logger.Warn("Json decode failed: " + err.Error()) + } + xapp.Logger.Info("HTTP GET: OK") + xapp.Logger.Debug("httprestful.httpGetXApps returns: %v", xapps) + return &xapps, err + } + xapp.Logger.Warn("httprestful got an unexpected http status code: %v", r.StatusCode) + return nil, nil +} - go func() { - for { - data, err := r.RecvXappCallbackData(datach) - if err != nil { - rtmgr.Logger.Error("cannot get data from rest api dute to: " + err.Error()) - } else if data != nil { - sdlEngine.WriteXapps(fileName, data) - triggerSBI <- true +func httpGetE2TList(e2murl string) (*[]rtmgr.E2tIdentity, error) { + xapp.Logger.Info("Invoked httprestful.httpGetE2TList: " + e2murl) + r, err := myClient.Get(e2murl) + if err != nil { + return nil, err + } + defer r.Body.Close() + + if r.StatusCode == 200 { + xapp.Logger.Debug("http client raw response: %v", r) + var E2Tlist []rtmgr.E2tIdentity + err = json.NewDecoder(r.Body).Decode(&E2Tlist) + if err != nil { + xapp.Logger.Warn("Json decode failed: " + err.Error()) + } + xapp.Logger.Info("HTTP GET: OK") + xapp.Logger.Debug("httprestful.httpGetXApps returns: %v", E2Tlist) + return &E2Tlist, err + } + xapp.Logger.Warn("httprestful got an unexpected http status code: %v", r.StatusCode) + return nil, nil +} + +func PopulateE2TMap(e2tDataList *[]rtmgr.E2tIdentity, e2ts map[string]rtmgr.E2TInstance, meids []string) { + xapp.Logger.Info("Invoked httprestful.PopulateE2TMap ") + + for _, e2tData := range *e2tDataList { + var str string + + e2tinst := rtmgr.E2TInstance{ + Ranlist: make([]string, len(e2tData.Rannames)), + } + + e2tinst.Fqdn = e2tData.E2taddress + e2tinst.Name = "E2TERMINST" + copy(e2tinst.Ranlist, e2tData.Rannames) + + if len(e2tData.Rannames) > 0 { + var meidar string + for _, meid := range e2tData.Rannames { + meidar += meid + " " } + str += "mme_ar|" + e2tData.E2taddress + "|" + strings.TrimSuffix(meidar, " ") } - }() - go func() { - for { - data := <-subschan - rtmgr.Logger.Debug("received XApp subscription data") - addSubscription(&rtmgr.Subs, data) - triggerSBI <- true + e2ts[e2tinst.Fqdn] = e2tinst + meids = append(meids, str) + } +} + +func retrieveStartupData(xmurl string, nbiif string, fileName string, configfile string, e2murl string, sdlEngine sdl.Engine) error { + xapp.Logger.Info("Invoked retrieveStartupData ") + var readErr error + var err error + var maxRetries = 10 + var xappData *[]rtmgr.XApp + xappData = new([]rtmgr.XApp) + xapp.Logger.Info("Trying to fetch XApps data from XAPP manager") + for i := 1; i <= maxRetries; i++ { + time.Sleep(2 * time.Second) + + readErr = nil + xappData, err = httpGetXApps(xmurl) + if xappData != nil && err == nil { + break + } else if err == nil { + readErr = errors.New("unexpected HTTP status code") + } else { + xapp.Logger.Warn("cannot get xapp data due to: " + err.Error()) + readErr = err } - }() + } - go func() { - for { - data := <-subdelchan - rtmgr.Logger.Debug("received XApp subscription delete data") - delSubscription(&rtmgr.Subs, data) - triggerSBI <- true + if readErr != nil { + return readErr + } + + var meids []string + e2ts := make(map[string]rtmgr.E2TInstance) + xapp.Logger.Info("Trying to fetch E2T data from E2manager") + for i := 1; i <= maxRetries; i++ { + + readErr = nil + e2tDataList, err := httpGetE2TList(e2murl) + if e2tDataList != nil && err == nil { + PopulateE2TMap(e2tDataList, e2ts, meids[:]) + break + } else if err == nil { + readErr = errors.New("unexpected HTTP status code") + } else { + xapp.Logger.Warn("cannot get E2T data from E2M due to: " + err.Error()) + readErr = err + } + time.Sleep(2 * time.Second) + } + + if readErr != nil { + return readErr + } + + pcData, confErr := rtmgr.GetPlatformComponents(configfile) + if confErr != nil { + xapp.Logger.Error(confErr.Error()) + return confErr + } + xapp.Logger.Info("Recieved intial xapp data, E2T data and platform data, writing into SDL.") + // Combine the xapps data and platform data before writing to the SDL + ricData := &rtmgr.RicComponents{XApps: *xappData, Pcs: *pcData, E2Ts: e2ts, MeidMap: meids} + writeErr := sdlEngine.WriteAll(fileName, ricData) + if writeErr != nil { + xapp.Logger.Error(writeErr.Error()) + } + + xapp.Logger.Info("Trying to fetch Subscriptions data from Subscription manager") + for i := 1; i <= maxRetries; i++ { + readErr = nil + sub_list, err := xapp.Subscription.QuerySubscriptions() + + if sub_list != nil && err == nil { + PopulateSubscription(sub_list) + break + } else { + readErr = err + xapp.Logger.Warn("cannot get xapp data due to: " + readErr.Error()) + } + time.Sleep(2 * time.Second) } + + if readErr != nil { + return readErr + } + + // post subscription req to appmgr + readErr = PostSubReq(xmurl, nbiif) + if readErr != nil { + return readErr + } + + //rlist := make(map[string]string) + xapp.Logger.Info("Reading SDL for any routes") + rlist,sdlerr := xapp.Sdl.Read("routes") + readErr = sdlerr + if readErr == nil { + xapp.Logger.Info("Value is %s",rlist["routes"]) + if rlist["routes"] != nil { + formstring := fmt.Sprintf("%s",rlist["routes"]) + xapp.Logger.Info("Value of formed string = %s",formstring) + newstring := strings.Split(formstring," ") + for i,_ := range newstring { + xapp.Logger.Info("in Loop Value of formed string = %s",newstring) + rtmgr.DynamicRouteList = append(rtmgr.DynamicRouteList,newstring[i]) + } + } + + return nil + } + + return readErr +} + +func (r *HttpRestful) Initialize(xmurl string, nbiif string, fileName string, configfile string, e2murl string, + sdlEngine sdl.Engine, rpeEngine rpe.Engine, m *sync.Mutex) error { + err := r.RetrieveStartupData(xmurl, nbiif, fileName, configfile, e2murl, sdlEngine) + if err != nil { + xapp.Logger.Error("Exiting as nbi failed to get the initial startup data from the xapp manager: " + err.Error()) + return err + } + go func() { + r.LaunchRest(&nbiif) }() return nil @@ -346,11 +720,12 @@ func (r *HttpRestful) Terminate() error { } func addSubscription(subs *rtmgr.SubscriptionList, xappSubData *models.XappSubscriptionData) bool { - var b bool = false - sub := rtmgr.Subscription{SubID:*xappSubData.SubscriptionID, Fqdn:*xappSubData.Address, Port:*xappSubData.Port,} + xapp.Logger.Debug("Adding the subscription into the subscriptions list") + var b = false + sub := rtmgr.Subscription{SubID: *xappSubData.SubscriptionID, Fqdn: *xappSubData.Address, Port: *xappSubData.Port} for _, elem := range *subs { if elem == sub { - rtmgr.Logger.Warn("rtmgr.addSubscription: Subscription already present: %v", elem) + xapp.Logger.Warn("rtmgr.addSubscription: Subscription already present: %v", elem) b = true } } @@ -361,9 +736,9 @@ func addSubscription(subs *rtmgr.SubscriptionList, xappSubData *models.XappSubsc } func delSubscription(subs *rtmgr.SubscriptionList, xappSubData *models.XappSubscriptionData) bool { - rtmgr.Logger.Debug("Deleteing the subscription from the subscriptions list") - var present bool = false - sub := rtmgr.Subscription{SubID:*xappSubData.SubscriptionID, Fqdn:*xappSubData.Address, Port:*xappSubData.Port,} + xapp.Logger.Debug("Deleteing the subscription from the subscriptions list") + var present = false + sub := rtmgr.Subscription{SubID: *xappSubData.SubscriptionID, Fqdn: *xappSubData.Address, Port: *xappSubData.Port} for i, elem := range *subs { if elem == sub { present = true @@ -375,7 +750,114 @@ func delSubscription(subs *rtmgr.SubscriptionList, xappSubData *models.XappSubsc } } if present == false { - rtmgr.Logger.Warn("rtmgr.delSubscription: Subscription = %v, not present in the existing subscriptions", xappSubData) + xapp.Logger.Warn("rtmgr.delSubscription: Subscription = %v, not present in the existing subscriptions", xappSubData) } return present } + +func updateSubscription(data *rtmgr.XappList) { + + var subdata models.XappSubscriptionData + var id int32 + var matchingsubid, deletecount uint8 + id = int32(data.SubscriptionID) + subdata.SubscriptionID = &id + for _, subs := range rtmgr.Subs { + if int32(data.SubscriptionID) == subs.SubID { + matchingsubid++ + } + } + + for deletecount < matchingsubid { + for _, subs := range rtmgr.Subs { + if int32(data.SubscriptionID) == subs.SubID { + subdata.SubscriptionID = &subs.SubID + subdata.Address = &subs.Fqdn + subdata.Port = &subs.Port + xapp.Logger.Debug("Deletion Subscription List has %v", subdata) + delSubscription(&rtmgr.Subs, &subdata) + break + } + } + deletecount++ + } + + for _, items := range data.FqdnList { + subdata.Address = items.Address + subdata.Port = items.Port + xapp.Logger.Debug("Adding Subscription List has %v", subdata) + addSubscription(&rtmgr.Subs, &subdata) + } + +} + +func PopulateSubscription(sub_list xfmodel.SubscriptionList) { + for _, sub_row := range sub_list { + var subdata models.XappSubscriptionData + id := int32(sub_row.SubscriptionID) + subdata.SubscriptionID = &id + for _, ep := range sub_row.Endpoint { + + stringSlice := strings.Split(ep, ":") + subdata.Address = &stringSlice[0] + intportval, _ := strconv.Atoi(stringSlice[1]) + value := uint16(intportval) + subdata.Port = &value + xapp.Logger.Debug("Adding Subscription List has Address :%v, port :%v, SubscriptionID :%v ", subdata.Address, subdata.Address, subdata.SubscriptionID) + addSubscription(&rtmgr.Subs, &subdata) + } + } +} + +func adddelrmrroute(routelist models.Routelist,rtflag bool) error { + xapp.Logger.Info("Updating rmrroute with Route list: %v,flag: %v", routelist,rtflag) + for _, rlist := range routelist { + var subid int32 + var data string + if rlist.SubscriptionID == 0 { + subid = -1 + } else { + subid = rlist.SubscriptionID + } + if rlist.SenderEndPoint == "" && rlist.SubscriptionID != 0 { + data = fmt.Sprintf("mse|%d|%d|%s\n",*rlist.MessageType,rlist.SubscriptionID,*rlist.TargetEndPoint) + } else if rlist.SenderEndPoint == "" && rlist.SubscriptionID == 0 { + data = fmt.Sprintf("mse|%d|-1|%s\n",*rlist.MessageType,*rlist.TargetEndPoint) + } else { + data = fmt.Sprintf("mse|%d,%s|%d|%s\n",*rlist.MessageType,rlist.SenderEndPoint,subid,*rlist.TargetEndPoint) + } + err := checkrepeatedroute(data) + + if rtflag == true { + if err == true { + xapp.Logger.Info("Given route %s is a duplicate",data) + } + rtmgr.DynamicRouteList = append(rtmgr.DynamicRouteList,data) + routearray := strings.Join(rtmgr.DynamicRouteList," ") + xapp.Sdl.Store("routes",routearray) + } else { + if err == true { + xapp.Logger.Info("Successfully deleted route: %s",data) + routearray := strings.Join(rtmgr.DynamicRouteList," ") + xapp.Sdl.Store("routes",routearray) + }else { + xapp.Logger.Info("No such route: %s",data) + return errors.New("No such route: " + data) + } + + } + } + return sendRoutesToAll() +} + +func checkrepeatedroute (data string) bool { + for i:=0;i