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
}));
}
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);
}
