/* ================================================================================== 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 ( "fmt" "gerrit.o-ran-sc.org/r/ric-plt/xapp-frame/pkg/xapp" "sync" ) //----------------------------------------------------------------------------- // //----------------------------------------------------------------------------- type Tracker struct { mutex sync.Mutex transactionXappTable map[TransactionXappKey]*Transaction transSeq uint64 } func (t *Tracker) Init() { t.transactionXappTable = make(map[TransactionXappKey]*Transaction) } func (t *Tracker) NewTransactionFromSkel(transSkel *Transaction) *Transaction { t.mutex.Lock() defer t.mutex.Unlock() trans := transSkel if trans == nil { trans = &Transaction{} } trans.EventChan = make(chan interface{}) trans.tracker = t trans.Seq = t.transSeq t.transSeq++ xapp.Logger.Debug("Transaction: Create %s", trans.String()) return trans } func (t *Tracker) NewTransaction(meid *xapp.RMRMeid) *Transaction { trans := &Transaction{} trans.Meid = meid trans = t.NewTransactionFromSkel(trans) return trans } func (t *Tracker) TrackTransaction( endpoint *RmrEndpoint, xid string, meid *xapp.RMRMeid) (*Transaction, error) { if endpoint == nil { err := fmt.Errorf("Tracker: No valid endpoint given") return nil, err } trans := &Transaction{} trans.XappKey = &TransactionXappKey{*endpoint, xid} trans.Meid = meid trans = t.NewTransactionFromSkel(trans) t.mutex.Lock() defer t.mutex.Unlock() if othtrans, ok := t.transactionXappTable[*trans.XappKey]; ok { err := fmt.Errorf("Tracker: %s is ongoing, %s not created ", othtrans, trans) return nil, err } trans.tracker = t t.transactionXappTable[*trans.XappKey] = trans xapp.Logger.Debug("Tracker: Add %s", trans.String()) //xapp.Logger.Debug("Tracker: transtable=%v", t.transactionXappTable) return trans, nil } func (t *Tracker) UnTrackTransaction(xappKey TransactionXappKey) (*Transaction, error) { t.mutex.Lock() defer t.mutex.Unlock() if trans, ok2 := t.transactionXappTable[xappKey]; ok2 { xapp.Logger.Debug("Tracker: Delete %s", trans.String()) delete(t.transactionXappTable, xappKey) //xapp.Logger.Debug("Tracker: transtable=%v", t.transactionXappTable) return trans, nil } return nil, fmt.Errorf("Tracker: No record %s", xappKey) }