+
+ go c.processSubscriptionRequests(restSubscription, &subReqList, p.ClientEndpoint, p.Meid, &restSubId)
+
+ c.UpdateCounter(cRestSubRespToXapp)
+ return &subResp, nil
+}
+
+//-------------------------------------------------------------------
+//
+//-------------------------------------------------------------------
+
+func (c *Control) processSubscriptionRequests(restSubscription *RESTSubscription, subReqList *e2ap.SubscriptionRequestList,
+ clientEndpoint *models.SubscriptionParamsClientEndpoint, meid *string, restSubId *string) {
+
+ xapp.Logger.Info("Subscription Request count=%v ", len(subReqList.E2APSubscriptionRequests))
+
+ _, xAppRmrEndpoint, err := ConstructEndpointAddresses(*clientEndpoint)
+ if err != nil {
+ xapp.Logger.Error("%s", err.Error())
+ return
+ }
+
+ var xAppEventInstanceID int64
+ var e2EventInstanceID int64
+ for index := 0; index < len(subReqList.E2APSubscriptionRequests); index++ {
+ subReqMsg := subReqList.E2APSubscriptionRequests[index]
+
+ trans := c.tracker.NewXappTransaction(xapp.NewRmrEndpoint(xAppRmrEndpoint), *restSubId, subReqMsg.RequestId, &xapp.RMRMeid{RanName: *meid})
+ if trans == nil {
+ c.registry.DeleteRESTSubscription(restSubId)
+ xapp.Logger.Error("XAPP-SubReq transaction not created. RESTSubId=%s, EndPoint=%s, Meid=%s", *restSubId, xAppRmrEndpoint, *meid)
+ return
+ }
+
+ defer trans.Release()
+ xAppEventInstanceID = (int64)(subReqMsg.RequestId.Id)
+ xapp.Logger.Info("Handle SubscriptionRequest index=%v, %s", index, idstring(nil, trans))
+ subRespMsg, err := c.handleSubscriptionRequest(trans, &subReqMsg, meid, restSubId)
+ if err != nil {
+ // Send notification to xApp that prosessing of a Subscription Request has failed.
+ e2EventInstanceID = (int64)(0)
+ resp := &models.SubscriptionResponse{
+ SubscriptionID: restSubId,
+ SubscriptionInstances: []*models.SubscriptionInstance{
+ &models.SubscriptionInstance{E2EventInstanceID: &e2EventInstanceID,
+ ErrorCause: nil, //TODO: Suitable Error cause.
+ XappEventInstanceID: &xAppEventInstanceID},
+ },
+ }
+ // Mark REST subscription request processed.
+ restSubscription.SetProcessed()
+ xapp.Logger.Info("Sending unsuccessful REST notification to endpoint=%v:%v, XappEventInstanceID=%v, E2EventInstanceID=%v, %s",
+ clientEndpoint.Host, *clientEndpoint.HTTPPort, xAppEventInstanceID, e2EventInstanceID, idstring(nil, trans))
+ xapp.Subscription.Notify(resp, *clientEndpoint)
+ c.UpdateCounter(cRestSubFailNotifToXapp)
+ } else {
+ e2EventInstanceID = (int64)(subRespMsg.RequestId.InstanceId)
+
+ xapp.Logger.Info("SubscriptionRequest index=%v processed successfully. endpoint=%v:%v, XappEventInstanceID=%v, E2EventInstanceID=%v, %s",
+ index, clientEndpoint.Host, *clientEndpoint.HTTPPort, xAppEventInstanceID, e2EventInstanceID, idstring(nil, trans))
+
+ // Store successfully processed InstanceId for deletion
+ restSubscription.AddE2InstanceId(subRespMsg.RequestId.InstanceId)
+ restSubscription.AddXappIdToE2Id(xAppEventInstanceID, e2EventInstanceID)
+
+ // Send notification to xApp that a Subscription Request has been processed.
+ resp := &models.SubscriptionResponse{
+ SubscriptionID: restSubId,
+ SubscriptionInstances: []*models.SubscriptionInstance{
+ &models.SubscriptionInstance{E2EventInstanceID: &e2EventInstanceID,
+ ErrorCause: nil,
+ XappEventInstanceID: &xAppEventInstanceID},
+ },
+ }
+ // Mark REST subscription request processesd.
+ restSubscription.SetProcessed()
+ xapp.Logger.Info("Sending successful REST notification to endpoint=%v:%v, XappEventInstanceID=%v, E2EventInstanceID=%v, %s",
+ clientEndpoint.Host, *clientEndpoint.HTTPPort, xAppEventInstanceID, e2EventInstanceID, idstring(nil, trans))
+ xapp.Subscription.Notify(resp, *clientEndpoint)
+ c.UpdateCounter(cRestSubNotifToXapp)
+
+ }
+ }
+}
+
+//-------------------------------------------------------------------
+//
+//------------------------------------------------------------------
+func (c *Control) handleSubscriptionRequest(trans *TransactionXapp, subReqMsg *e2ap.E2APSubscriptionRequest, meid *string,
+ restSubId *string) (*e2ap.E2APSubscriptionResponse, error) {
+
+ err := c.tracker.Track(trans)
+ if err != nil {
+ err = fmt.Errorf("XAPP-SubReq: %s", idstring(err, trans))
+ xapp.Logger.Error("%s", err.Error())
+ return nil, err
+ }
+
+ subs, err := c.registry.AssignToSubscription(trans, subReqMsg, c.ResetTestFlag, c)
+ if err != nil {
+ err = fmt.Errorf("XAPP-SubReq: %s", idstring(err, trans))
+ xapp.Logger.Error("%s", err.Error())
+ return nil, err
+ }
+
+ //
+ // Wake subs request
+ //
+ go c.handleSubscriptionCreate(subs, trans)
+ event, _ := trans.WaitEvent(0) //blocked wait as timeout is handled in subs side
+
+ err = nil
+ if event != nil {
+ switch themsg := event.(type) {
+ case *e2ap.E2APSubscriptionResponse:
+ trans.Release()
+ return themsg, nil
+ case *e2ap.E2APSubscriptionFailure:
+ err = fmt.Errorf("SubscriptionFailure received")
+ return nil, err
+ default:
+ break
+ }
+ }
+ err = fmt.Errorf("XAPP-SubReq: failed %s", idstring(err, trans, subs))
+ xapp.Logger.Error("%s", err.Error())
+ c.registry.RemoveFromSubscription(subs, trans, waitRouteCleanup_ms, c)
+ return nil, err
+}
+
+//-------------------------------------------------------------------
+//
+//-------------------------------------------------------------------
+func (c *Control) SubscriptionDeleteHandlerCB(restSubId string) error {
+
+ c.CntRecvMsg++
+ c.UpdateCounter(cRestSubDelReqFromXapp)
+
+ xapp.Logger.Info("SubscriptionDeleteRequest from XAPP")
+
+ restSubscription, err := c.registry.GetRESTSubscription(restSubId, true)
+ if err != nil {
+ xapp.Logger.Error("%s", err.Error())
+ if restSubscription == nil {
+ // Subscription was not found
+ return nil
+ } else {
+ if restSubscription.SubReqOngoing == true {
+ err := fmt.Errorf("Handling of the REST Subscription Request still ongoing %s", restSubId)
+ xapp.Logger.Error("%s", err.Error())
+ return err
+ } else if restSubscription.SubDelReqOngoing == true {
+ // Previous request for same restSubId still ongoing
+ return nil
+ }
+ }
+ }
+
+ xAppRmrEndPoint := restSubscription.xAppRmrEndPoint
+ go func() {
+ for _, instanceId := range restSubscription.InstanceIds {
+ xAppEventInstanceID, err := c.SubscriptionDeleteHandler(&restSubId, &xAppRmrEndPoint, &restSubscription.Meid, instanceId)
+
+ if err != nil {
+ xapp.Logger.Error("%s", err.Error())
+ //return err
+ }
+ xapp.Logger.Info("Deleteting instanceId = %v", instanceId)
+ restSubscription.DeleteXappIdToE2Id(xAppEventInstanceID)
+ restSubscription.DeleteE2InstanceId(instanceId)
+ }
+ c.registry.DeleteRESTSubscription(&restSubId)
+ }()
+
+ c.UpdateCounter(cRestSubDelRespToXapp)
+
+ return nil
+}
+
+//-------------------------------------------------------------------
+//
+//-------------------------------------------------------------------
+func (c *Control) SubscriptionDeleteHandler(restSubId *string, endPoint *string, meid *string, instanceId uint32) (int64, error) {
+
+ var xAppEventInstanceID int64
+ subs, err := c.registry.GetSubscriptionFirstMatch([]uint32{instanceId})
+ if err != nil {
+ xapp.Logger.Info("Subscription Delete Handler subscription for restSubId=%v, E2EventInstanceID=%v not found %s",
+ restSubId, instanceId, idstring(err, nil))
+ return xAppEventInstanceID, nil
+ }
+
+ xAppEventInstanceID = int64(subs.ReqId.Id)
+ trans := c.tracker.NewXappTransaction(xapp.NewRmrEndpoint(*endPoint), *restSubId, e2ap.RequestId{subs.ReqId.Id, 0}, &xapp.RMRMeid{RanName: *meid})
+ if trans == nil {
+ err := fmt.Errorf("XAPP-SubDelReq transaction not created. restSubId %s, endPoint %s, meid %s, instanceId %v", *restSubId, *endPoint, *meid, instanceId)
+ xapp.Logger.Error("%s", err.Error())
+ }
+ defer trans.Release()
+
+ err = c.tracker.Track(trans)
+ if err != nil {
+ err := fmt.Errorf("XAPP-SubDelReq %s:", idstring(err, trans))
+ xapp.Logger.Error("%s", err.Error())
+ return xAppEventInstanceID, &time.ParseError{}
+ }
+ //
+ // Wake subs delete
+ //
+ go c.handleSubscriptionDelete(subs, trans)
+ trans.WaitEvent(0) //blocked wait as timeout is handled in subs side
+
+ xapp.Logger.Debug("XAPP-SubDelReq: Handling event %s ", idstring(nil, trans, subs))
+
+ c.registry.RemoveFromSubscription(subs, trans, waitRouteCleanup_ms, c)
+
+ return xAppEventInstanceID, nil