private static TransactionToApply Tx(ICollection <StorageCommand> commands)
{
TransactionToApply tx = new TransactionToApply(transactionRepresentation(commands));
tx.Commitment(NO_COMMITMENT, 0);
return(tx);
}
private void PublishAsCommitted(TransactionToApply batch)
{
while (batch != null)
{
batch.Commitment().publishAsCommitted();
batch = batch.Next();
}
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: public long append(org.neo4j.kernel.impl.api.TransactionToApply batch, org.neo4j.kernel.impl.transaction.tracing.LogAppendEvent logAppendEvent) throws java.io.IOException
public override long Append(TransactionToApply batch, LogAppendEvent logAppendEvent)
{
// Assigned base tx id just to make compiler happy
long lastTransactionId = TransactionIdStore_Fields.BASE_TX_ID;
// Synchronized with logFile to get absolute control over concurrent rotations happening
lock ( _logFile )
{
// Assert that kernel is healthy before making any changes
_databaseHealth.assertHealthy(typeof(IOException));
using (SerializeTransactionEvent serialiseEvent = logAppendEvent.BeginSerializeTransaction())
{
// Append all transactions in this batch to the log under the same logFile monitor
TransactionToApply tx = batch;
while (tx != null)
{
long transactionId = _transactionIdStore.nextCommittingTransactionId();
// If we're in a scenario where we're merely replicating transactions, i.e. transaction
// id have already been generated by another entity we simply check that our id
// that we generated match that id. If it doesn't we've run into a problem we can't ´
// really recover from and would point to a bug somewhere.
MatchAgainstExpectedTransactionIdIfAny(transactionId, tx);
TransactionCommitment commitment = AppendToLog(tx.TransactionRepresentation(), transactionId);
tx.Commitment(commitment, transactionId);
tx.LogPosition(commitment.LogPosition());
tx = tx.Next();
lastTransactionId = transactionId;
}
}
}
// At this point we've appended all transactions in this batch, but we can't mark any of them
// as committed since they haven't been forced to disk yet. So here we force, or potentially
// piggy-back on another force, but anyway after this call below we can be sure that all our transactions
// in this batch exist durably on disk.
if (ForceAfterAppend(logAppendEvent))
{
// We got lucky and were the one forcing the log. It's enough if ones of all doing concurrent committers
// checks the need for log rotation.
bool logRotated = _logRotation.rotateLogIfNeeded(logAppendEvent);
logAppendEvent.LogRotated = logRotated;
}
// Mark all transactions as committed
PublishAsCommitted(batch);
return(lastTransactionId);
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: private static org.neo4j.kernel.impl.api.TransactionToApply newTransactionThatFailsWith(Exception error) throws java.io.IOException
private static TransactionToApply NewTransactionThatFailsWith(Exception error)
{
TransactionRepresentation transaction = mock(typeof(TransactionRepresentation));
when(transaction.AdditionalHeader()).thenReturn(new sbyte[0]);
// allow to build validated index updates but fail on actual tx application
doThrow(error).when(transaction).accept(any());
long txId = ThreadLocalRandom.current().nextLong(0, 1000);
TransactionToApply txToApply = new TransactionToApply(transaction);
FakeCommitment commitment = new FakeCommitment(txId, mock(typeof(TransactionIdStore)));
commitment.HasExplicitIndexChanges = false;
txToApply.Commitment(commitment, txId);
return(txToApply);
}
