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/*
==================================================================================
Copyright (c) 2019 AT&T Intellectual Property.
Copyright (c) 2019 Nokia
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
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.
==================================================================================
*/
package control
import (
"gerrit.o-ran-sc.org/r/ric-plt/e2ap/pkg/e2ap"
"gerrit.o-ran-sc.org/r/ric-plt/xapp-frame/pkg/xapp"
//"reflect"
"sync"
)
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
type Subscription struct {
mutex sync.Mutex // Lock
valid bool // valid
registry *Registry // Registry
ReqId RequestId // ReqId (Requestor Id + Seq Nro a.k.a subsid)
Meid *xapp.RMRMeid // Meid/ RanName
EpList xapp.RmrEndpointList // Endpoints
TransLock sync.Mutex // Lock transactions, only one executed per time for subs
TheTrans TransactionIf // Ongoing transaction
SubReqMsg *e2ap.E2APSubscriptionRequest // Subscription information
SubRFMsg interface{} // Subscription information
RetryFromXapp bool // Retry form xApp for subscription that already exist
SubRespRcvd bool // Subscription response received
DeleteFromDb bool // Delete subscription form db
NoRespToXapp bool // Send no response for subscription delete to xApp after restart
DoNotWaitSubResp bool // Test flag. Response is not waited for Subscription Request
}
func (s *Subscription) String() string {
meidstr := "N/A"
if s.Meid != nil {
meidstr = s.Meid.String()
}
return "subs(" + s.ReqId.String() + "/" + meidstr + "/" + s.EpList.String() + ")"
}
func (s *Subscription) GetCachedResponse() (interface{}, bool) {
s.mutex.Lock()
defer s.mutex.Unlock()
return s.SubRFMsg, s.valid
}
func (s *Subscription) SetCachedResponse(subRFMsg interface{}, valid bool) (interface{}, bool) {
s.mutex.Lock()
defer s.mutex.Unlock()
s.SubRFMsg = subRFMsg
s.valid = valid
return s.SubRFMsg, s.valid
}
func (s *Subscription) GetReqId() *RequestId {
s.mutex.Lock()
defer s.mutex.Unlock()
return &s.ReqId
}
func (s *Subscription) GetMeid() *xapp.RMRMeid {
s.mutex.Lock()
defer s.mutex.Unlock()
return s.Meid
}
func (s *Subscription) GetTransaction() TransactionIf {
s.mutex.Lock()
defer s.mutex.Unlock()
return s.TheTrans
}
func (s *Subscription) WaitTransactionTurn(trans TransactionIf) {
s.TransLock.Lock()
s.mutex.Lock()
s.TheTrans = trans
s.mutex.Unlock()
}
func (s *Subscription) ReleaseTransactionTurn(trans TransactionIf) {
s.mutex.Lock()
if trans != nil && trans == s.TheTrans {
s.TheTrans = nil
}
s.mutex.Unlock()
s.TransLock.Unlock()
}
func (s *Subscription) IsMergeable(trans *TransactionXapp, subReqMsg *e2ap.E2APSubscriptionRequest) bool {
s.mutex.Lock()
defer s.mutex.Unlock()
if s.valid == false {
return false
}
if s.SubReqMsg == nil {
return false
}
if s.Meid.RanName != trans.Meid.RanName {
return false
}
// EventTrigger check
if s.SubReqMsg.EventTriggerDefinition.Data.Length != subReqMsg.EventTriggerDefinition.Data.Length {
return false
}
for i := uint64(0); i < s.SubReqMsg.EventTriggerDefinition.Data.Length; i++ {
if s.SubReqMsg.EventTriggerDefinition.Data.Data[i] != subReqMsg.EventTriggerDefinition.Data.Data[i] {
return false
}
}
// Actions check
if len(s.SubReqMsg.ActionSetups) != len(subReqMsg.ActionSetups) {
return false
}
for _, acts := range s.SubReqMsg.ActionSetups {
for _, actt := range subReqMsg.ActionSetups {
if acts.ActionId != actt.ActionId {
return false
}
if acts.ActionType != actt.ActionType {
return false
}
if acts.ActionType != e2ap.E2AP_ActionTypeReport {
return false
}
if acts.RicActionDefinitionPresent != actt.RicActionDefinitionPresent {
return false
}
if acts.ActionDefinitionChoice.Data.Length != actt.ActionDefinitionChoice.Data.Length {
return false
}
for i := uint64(0); i < acts.ActionDefinitionChoice.Data.Length; i++ {
if acts.ActionDefinitionChoice.Data.Data[i] != actt.ActionDefinitionChoice.Data.Data[i] {
return false
}
}
//reflect.DeepEqual(acts.ActionDefinitionChoice, actt.ActionDefinitionChoice)
if acts.SubsequentAction.Present != actt.SubsequentAction.Present ||
acts.SubsequentAction.Type != actt.SubsequentAction.Type ||
acts.SubsequentAction.TimetoWait != actt.SubsequentAction.TimetoWait {
return false
}
}
}
return true
}