private RemoteTransaction getOrCreateRemoteTransaction(
GlobalTransaction globalTx, WriteCommand[] modifications, int topologyId) {
RemoteTransaction remoteTransaction = remoteTransactions.get(globalTx);
if (remoteTransaction != null) return remoteTransaction;
remoteTransaction =
modifications == null
? txFactory.newRemoteTransaction(globalTx, topologyId)
: txFactory.newRemoteTransaction(modifications, globalTx, topologyId);
RemoteTransaction existing = remoteTransactions.putIfAbsent(globalTx, remoteTransaction);
if (existing != null) {
if (trace) log.tracef("Remote transaction already registered: %s", existing);
return existing;
} else {
if (trace) log.tracef("Created and registered remote transaction %s", remoteTransaction);
if (remoteTransaction.getTopologyId() < minTxTopologyId) {
if (trace)
log.tracef(
"Changing minimum topology ID from %d to %d",
minTxTopologyId, remoteTransaction.getTopologyId());
minTxTopologyId = remoteTransaction.getTopologyId();
}
return remoteTransaction;
}
}
