+//-------------------------------------------------------------------
+// SUBS CREATE Handling
+//-------------------------------------------------------------------
+func (c *Control) handleSubscriptionCreate(subs *Subscription, parentTrans *TransactionXapp) {
+
+ trans := c.tracker.NewSubsTransaction(subs)
+ subs.WaitTransactionTurn(trans)
+ defer subs.ReleaseTransactionTurn(trans)
+ defer trans.Release()
+
+ xapp.Logger.Debug("SUBS-SubReq: Handling %s ", idstring(nil, trans, subs, parentTrans))
+
+ subRfMsg, valid := subs.GetCachedResponse()
+ if subRfMsg == nil && valid == true {
+
+ //
+ // In case of failure
+ // - make internal delete
+ // - in case duplicate cause, retry (currently max 1 retry)
+ //
+ maxRetries := uint64(1)
+ doRetry := true
+ for retries := uint64(0); retries <= maxRetries && doRetry; retries++ {
+ doRetry = false
+
+ event := c.sendE2TSubscriptionRequest(subs, trans, parentTrans)
+ switch themsg := event.(type) {
+ case *e2ap.E2APSubscriptionResponse:
+ subRfMsg, valid = subs.SetCachedResponse(event, true)
+ case *e2ap.E2APSubscriptionFailure:
+ subRfMsg, valid = subs.SetCachedResponse(event, false)
+ doRetry = true
+ for _, item := range themsg.ActionNotAdmittedList.Items {
+ if item.Cause.Content != e2ap.E2AP_CauseContent_Ric || (item.Cause.Value != e2ap.E2AP_CauseValue_Ric_duplicate_action && item.Cause.Value != e2ap.E2AP_CauseValue_Ric_duplicate_event) {
+ doRetry = false
+ break
+ }
+ }
+ xapp.Logger.Info("SUBS-SubReq: internal delete and possible retry due event(%s) retry(%t,%d/%d) %s", typeofSubsMessage(event), doRetry, retries, maxRetries, idstring(nil, trans, subs, parentTrans))
+ c.sendE2TSubscriptionDeleteRequest(subs, trans, parentTrans)
+ default:
+ xapp.Logger.Info("SUBS-SubReq: internal delete due event(%s) %s", typeofSubsMessage(event), idstring(nil, trans, subs, parentTrans))
+ subRfMsg, valid = subs.SetCachedResponse(nil, false)
+ c.sendE2TSubscriptionDeleteRequest(subs, trans, parentTrans)
+ }