Пример #1
0
        public override void ApplyCommand(ReplicatedTransaction replicatedTx, long commandIndex, System.Action <Result> callback)
        {
            lock (this)
            {
                if (commandIndex <= _lastCommittedIndex)
                {
                    _log.debug("Ignoring transaction at log index %d since already committed up to %d", commandIndex, _lastCommittedIndex);
                    return;
                }

                TransactionRepresentation tx;

                sbyte[] extraHeader = encodeLogIndexAsTxHeader(commandIndex);
                tx = ReplicatedTransactionFactory.ExtractTransactionRepresentation(replicatedTx, extraHeader);

                int currentTokenId  = _lockTokenStateMachine.currentToken().id();
                int txLockSessionId = tx.LockSessionId;

                if (currentTokenId != txLockSessionId && txLockSessionId != Org.Neo4j.Kernel.impl.locking.Locks_Client_Fields.NO_LOCK_SESSION_ID)
                {
                    callback(Result.of(new TransactionFailureException(LockSessionExpired, "The lock session in the cluster has changed: [current lock session id:%d, tx lock session id:%d]", currentTokenId, txLockSessionId)));
                }
                else
                {
                    try
                    {
                        TransactionToApply transaction = new TransactionToApply(tx, _versionContextSupplier.VersionContext);
                        transaction.OnClose(txId =>
                        {
                            if (tx.LatestCommittedTxWhenStarted >= txId)
                            {
                                throw new System.InvalidOperationException(format("Out of order transaction. Expected that %d < %d", tx.LatestCommittedTxWhenStarted, txId));
                            }

                            callback(Result.of(txId));
                            _commandIndexTracker.AppliedCommandIndex = commandIndex;
                        });
                        _queue.queue(transaction);
                    }
                    catch (Exception e)
                    {
                        throw PanicException(e);
                    }
                }
            }
        }
Пример #2
0
 internal ChunkedTransaction(TransactionRepresentation tx)
 {
     _txWriter = ReplicatedTransactionFactory.TransactionalRepresentationWriter(tx);
 }