private void Enlist(Transaction transaction) { if (transaction == null) { // no enlistment as we are not in a TransactionScope return; } // try to enlist as a PSPE if (!transaction.EnlistPromotableSinglePhase(this)) { // our enlistmente fail so we need to enlist ourselves as durable. // we create a transaction directly instead of using BeginTransaction that GraphClient // doesn't store it in its stack of scopes. var localTransaction = new Neo4jTransaction(_client); localTransaction.ForceKeepAlive(); _transactionId = localTransaction.Id; var resourceManager = GetResourceManager(); var propagationToken = TransactionInterop.GetTransmitterPropagationToken(transaction); var transactionExecutionEnvironment = new TransactionExecutionEnvironment(_client.ExecutionConfiguration) { TransactionId = localTransaction.Id, TransactionBaseEndpoint = _client.TransactionEndpoint }; resourceManager.Enlist(transactionExecutionEnvironment, propagationToken); localTransaction.Cancel(); } _enlistedInTransactions.Add(transaction); }
public byte[] Promote() { // we have been promoted to MSTDC, so we have to clean the local resources if (_transaction == null) { _transaction = new Neo4jTransaction(_client); } // do a keep alive in case the promotion takes too long or in case we don't have an ID _transaction.ForceKeepAlive(); _transactionId = _transaction.Id; _transaction.Cancel(); _transaction = null; if (_transactionId == 0) { throw new InvalidOperationException("For some reason we don't have a TransactionContext ID"); } var resourceManager = GetResourceManager(); return(resourceManager.Promote(new TransactionExecutionEnvironment(_client.ExecutionConfiguration) { TransactionId = _transactionId, TransactionBaseEndpoint = _client.TransactionEndpoint })); }