import (
"fmt"
- "gerrit.o-ran-sc.org/r/ric-plt/xapp-frame/pkg/xapp"
"sync"
)
-type TransactionKey struct {
- SubID uint16 // subscription id / sequence number
- TransType Action // action ongoing (CREATE/DELETE etc)
-}
-
-type TransactionXappKey struct {
- Addr string // xapp addr
- Port uint16 // xapp port
- Xid string // xapp xid in req
-}
-
-type Transaction struct {
- tracker *Tracker // tracker instance
- Key TransactionKey // action key
- Xappkey TransactionXappKey // transaction key
- OrigParams *xapp.RMRParams // request orginal params
-}
-
-func (t *Transaction) SubRouteInfo() SubRouteInfo {
- return SubRouteInfo{t.Key.TransType, t.Xappkey.Addr, t.Xappkey.Port, t.Key.SubID}
-}
-
-/*
-Implements a record of ongoing transactions and helper functions to CRUD the records.
-*/
+//-----------------------------------------------------------------------------
+//
+//-----------------------------------------------------------------------------
type Tracker struct {
- transactionTable map[TransactionKey]*Transaction
- transactionXappTable map[TransactionXappKey]*Transaction
mutex sync.Mutex
+ transactionXappTable map[TransactionXappKey]*Transaction
}
func (t *Tracker) Init() {
- t.transactionTable = make(map[TransactionKey]*Transaction)
t.transactionXappTable = make(map[TransactionXappKey]*Transaction)
}
-/*
-Checks if a tranascation with similar type has been ongoing. If not then creates one.
-Returns error if there is similar transatcion ongoing.
-*/
-func (t *Tracker) TrackTransaction(subID uint16, act Action, addr string, port uint16, params *xapp.RMRParams) (*Transaction, error) {
- key := TransactionKey{subID, act}
- xappkey := TransactionXappKey{addr, port, params.Xid}
- trans := &Transaction{t, key, xappkey, params}
+func (t *Tracker) TrackTransaction(endpoint RmrEndpoint, params *RMRParams, respReceived bool, forwardRespToXapp bool) (*Transaction, error) {
+
+ trans := &Transaction{
+ tracker: nil,
+ Subs: nil,
+ RmrEndpoint: endpoint,
+ Mtype: params.Mtype,
+ Xid: params.Xid,
+ OrigParams: params,
+ RespReceived: respReceived,
+ ForwardRespToXapp: forwardRespToXapp,
+ }
+
t.mutex.Lock()
defer t.mutex.Unlock()
- if _, ok := t.transactionTable[key]; ok {
- // TODO: Implement merge related check here. If the key is same but the value is different.
- err := fmt.Errorf("transaction tracker: Similar transaction with sub id %d and type %s is ongoing", key.SubID, key.TransType)
- return nil, err
- }
+
+ xappkey := TransactionXappKey{endpoint, params.Xid}
if _, ok := t.transactionXappTable[xappkey]; ok {
- // TODO: Implement merge related check here. If the key is same but the value is different.
- err := fmt.Errorf("transaction tracker: Similar transaction with xapp key %v is ongoing", xappkey)
+ err := fmt.Errorf("Tracker: Similar transaction with xappkey %s is ongoing, transaction %s not created ", xappkey, trans)
return nil, err
}
- t.transactionTable[key] = trans
+
+ trans.tracker = t
t.transactionXappTable[xappkey] = trans
return trans, nil
}
-/*
-Retreives the transaction table entry for the given request.
-Returns error in case the transaction cannot be found.
-*/
-func (t *Tracker) RetriveTransaction(subID uint16, act Action) (*Transaction, error) {
- key := TransactionKey{subID, act}
- t.mutex.Lock()
- defer t.mutex.Unlock()
- if trans, ok := t.transactionTable[key]; ok {
- return trans, nil
- }
- err := fmt.Errorf("transaction record for Subscription ID %d and action %s does not exist", subID, act)
- return nil, err
-}
-
-/*
-Deletes the transaction table entry for the given request and returns the deleted xapp's address and port for reference.
-Returns error in case the transaction cannot be found.
-*/
-func (t *Tracker) completeTransaction(subID uint16, act Action) (*Transaction, error) {
- key := TransactionKey{subID, act}
+func (t *Tracker) UnTrackTransaction(xappKey TransactionXappKey) (*Transaction, error) {
t.mutex.Lock()
defer t.mutex.Unlock()
- if trans, ok1 := t.transactionTable[key]; ok1 {
- if _, ok2 := t.transactionXappTable[trans.Xappkey]; ok2 {
- delete(t.transactionXappTable, trans.Xappkey)
- }
- delete(t.transactionTable, key)
+ if trans, ok2 := t.transactionXappTable[xappKey]; ok2 {
+ delete(t.transactionXappTable, xappKey)
return trans, nil
}
- err := fmt.Errorf("transaction record for Subscription ID %d and action %s does not exist", subID, act)
- return nil, err
+ return nil, fmt.Errorf("Tracker: No record for xappkey %s", xappKey)
}