//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldAppendSingleTransaction() throws Exception
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void ShouldAppendSingleTransaction()
{
// GIVEN
when(_logFile.Writer).thenReturn(_channel);
long txId = 15;
when(_transactionIdStore.nextCommittingTransactionId()).thenReturn(txId);
TransactionAppender appender = Life.add(CreateTransactionAppender());
// WHEN
TransactionRepresentation transaction = transaction(SingleCreateNodeCommand(0), new sbyte[] { 1, 2, 5 }, 2, 1, 12345, 4545, 12345 + 10);
appender.Append(new TransactionToApply(transaction), _logAppendEvent);
// THEN
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final org.neo4j.kernel.impl.transaction.log.entry.LogEntryReader<ReadableLogChannel> logEntryReader = new org.neo4j.kernel.impl.transaction.log.entry.VersionAwareLogEntryReader<>();
LogEntryReader <ReadableLogChannel> logEntryReader = new VersionAwareLogEntryReader <ReadableLogChannel>();
using (PhysicalTransactionCursor <ReadableLogChannel> reader = new PhysicalTransactionCursor <ReadableLogChannel>(_channel, logEntryReader))
{
reader.Next();
TransactionRepresentation tx = reader.Get().TransactionRepresentation;
assertArrayEquals(transaction.AdditionalHeader(), tx.AdditionalHeader());
assertEquals(transaction.MasterId, tx.MasterId);
assertEquals(transaction.AuthorId, tx.AuthorId);
assertEquals(transaction.TimeStarted, tx.TimeStarted);
assertEquals(transaction.TimeCommitted, tx.TimeCommitted);
assertEquals(transaction.LatestCommittedTxWhenStarted, tx.LatestCommittedTxWhenStarted);
}
}
public override long Append(TransactionToApply batch, LogAppendEvent logAppendEvent)
{
long txId = TransactionIdStore_Fields.BASE_TX_ID;
while (batch != null)
{
txId = _transactionIdStore.nextCommittingTransactionId();
batch.Commitment(new FakeCommitment(txId, _transactionIdStore), txId);
batch.Commitment().publishAsCommitted();
batch = batch.Next();
}
return(txId);
}
//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);
}