RICPLT-3014 Subscription multiple endpoints

[ric-plt/submgr.git] / pkg / control / registry.go

diff --git a/pkg/control/registry.go b/pkg/control/registry.go
index 8f52f97..5edc3eb 100644 (file)
--- a/pkg/control/registry.go
+++ b/pkg/control/registry.go
@@ -19,15 +19,90 @@
 
 package control
 
+import (
+       "fmt"
+       "gerrit.o-ran-sc.org/r/ric-plt/e2ap/pkg/e2ap"
+       "gerrit.o-ran-sc.org/r/ric-plt/xapp-frame/pkg/xapp"
+       "sync"
+)
+
+//-----------------------------------------------------------------------------
+//
+//-----------------------------------------------------------------------------
 type Registry struct {
-  counter int
+       mutex       sync.Mutex
+       register    map[uint16]*Subscription
+       subIds      []uint16
+       rtmgrClient *RtmgrClient
+}
+
+// This method should run as a constructor
+func (r *Registry) Initialize() {
+       r.register = make(map[uint16]*Subscription)
+       var i uint16
+       for i = 0; i < 65535; i++ {
+               r.subIds = append(r.subIds, i+1)
+       }
+}
+
+// Reserves and returns the next free sequence number
+func (r *Registry) AssignToSubscription(trans *Transaction, subReqMsg *e2ap.E2APSubscriptionRequest) (*Subscription, error) {
+       r.mutex.Lock()
+       defer r.mutex.Unlock()
+       if len(r.subIds) > 0 {
+               sequenceNumber := r.subIds[0]
+               r.subIds = r.subIds[1:]
+               if _, ok := r.register[sequenceNumber]; ok == false {
+                       subs := &Subscription{
+                               registry: r,
+                               Seq:      sequenceNumber,
+                               Meid:     trans.Meid,
+                       }
+                       err := subs.AddEndpoint(trans.GetEndpoint())
+                       if err != nil {
+                               return nil, err
+                       }
+                       subs.SubReqMsg = subReqMsg
+
+                       r.register[sequenceNumber] = subs
+                       xapp.Logger.Debug("Registry: Create %s", subs.String())
+                       xapp.Logger.Debug("Registry: substable=%v", r.register)
+                       return subs, nil
+               }
+       }
+       return nil, fmt.Errorf("Registry: Failed to reserves subscription")
+}
+
+func (r *Registry) GetSubscription(sn uint16) *Subscription {
+       r.mutex.Lock()
+       defer r.mutex.Unlock()
+       if _, ok := r.register[sn]; ok {
+               return r.register[sn]
+       }
+       return nil
 }
 
-func (r *Registry) GetSubscriptionId() int {
-  return r.generateId()
+func (r *Registry) GetSubscriptionFirstMatch(ids []uint16) (*Subscription, error) {
+       r.mutex.Lock()
+       defer r.mutex.Unlock()
+       for _, id := range ids {
+               if _, ok := r.register[id]; ok {
+                       return r.register[id], nil
+               }
+       }
+       return nil, fmt.Errorf("No valid subscription found with ids %v", ids)
 }
 
-func (r *Registry) generateId() int {
-  r.counter += 1
-  return r.counter
+func (r *Registry) DelSubscription(sn uint16) bool {
+       r.mutex.Lock()
+       defer r.mutex.Unlock()
+       if _, ok := r.register[sn]; ok {
+               subs := r.register[sn]
+               xapp.Logger.Debug("Registry: Delete %s", subs.String())
+               r.subIds = append(r.subIds, sn)
+               delete(r.register, sn)
+               xapp.Logger.Debug("Registry: substable=%v", r.register)
+               return true
+       }
+       return false
 }