Esempio n. 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);
                    }
                }
            }
        }
Esempio n. 2
0
        /// <summary>
        /// Queues a transaction for application.
        /// </summary>
        /// <param name="tx"> The transaction to be queued for application. </param>
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: public void queue(org.neo4j.kernel.impl.transaction.CommittedTransactionRepresentation tx) throws Exception
        public virtual void Queue(CommittedTransactionRepresentation tx)
        {
            long receivedTxId = tx.CommitEntry.TxId;
            long expectedTxId = _lastQueuedTxId + 1;

            if (receivedTxId != expectedTxId)
            {
                _log.warn("Out of order transaction. Received: %d Expected: %d", receivedTxId, expectedTxId);
                return;
            }

            _txQueue.queue(new TransactionToApply(tx.TransactionRepresentation, receivedTxId, _versionContextSupplier.VersionContext));

            if (!_stopped)
            {
                _lastQueuedTxId = receivedTxId;
                _monitor.txPullResponse(receivedTxId);
            }
        }
Esempio n. 3
0
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: public boolean visit(org.neo4j.kernel.impl.transaction.CommittedTransactionRepresentation transaction) throws Exception
        public override bool Visit(CommittedTransactionRepresentation transaction)
        {
            _queue.queue(new TransactionToApplyAnonymousInnerClass(this, transaction.TransactionRepresentation, _versionContextSupplier.VersionContext));
            return(false);
        }