//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldTruncateLogAfterLastCompleteTransactionAfterSuccessfulRecovery() throws Exception
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void ShouldTruncateLogAfterLastCompleteTransactionAfterSuccessfulRecovery()
{
// GIVEN
File file = _logFiles.getLogFileForVersion(_logVersion);
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final org.neo4j.kernel.impl.transaction.log.LogPositionMarker marker = new org.neo4j.kernel.impl.transaction.log.LogPositionMarker();
LogPositionMarker marker = new LogPositionMarker();
WriteSomeData(file, pair =>
{
LogEntryWriter writer = pair.first();
Consumer <LogPositionMarker> consumer = pair.other();
// last committed tx
writer.writeStartEntry(0, 1, 2L, 3L, new sbyte[0]);
writer.writeCommitEntry(4L, 5L);
// incomplete tx
consumer.accept(marker); // <-- marker has the last good position
writer.writeStartEntry(0, 1, 5L, 4L, new sbyte[0]);
return(true);
});
// WHEN
bool recoveryRequired = Recover(_storeDir, _logFiles);
// THEN
assertTrue(recoveryRequired);
assertEquals(marker.ByteOffset, file.length());
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldSeeThatACleanDatabaseShouldNotRequireRecovery() throws Exception
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void ShouldSeeThatACleanDatabaseShouldNotRequireRecovery()
{
File file = _logFiles.getLogFileForVersion(_logVersion);
WriteSomeData(file, pair =>
{
LogEntryWriter writer = pair.first();
Consumer <LogPositionMarker> consumer = pair.other();
LogPositionMarker marker = new LogPositionMarker();
// last committed tx
consumer.accept(marker);
writer.writeStartEntry(0, 1, 2L, 3L, new sbyte[0]);
writer.writeCommitEntry(4L, 5L);
// check point
consumer.accept(marker);
writer.writeCheckPointEntry(marker.newPosition());
return(true);
});
LifeSupport life = new LifeSupport();
RecoveryMonitor monitor = mock(typeof(RecoveryMonitor));
try
{
StorageEngine storageEngine = mock(typeof(StorageEngine));
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final org.neo4j.kernel.impl.transaction.log.entry.LogEntryReader<org.neo4j.kernel.impl.transaction.log.ReadableClosablePositionAwareChannel> reader = new org.neo4j.kernel.impl.transaction.log.entry.VersionAwareLogEntryReader<>();
LogEntryReader <ReadableClosablePositionAwareChannel> reader = new VersionAwareLogEntryReader <ReadableClosablePositionAwareChannel>();
LogTailScanner tailScanner = GetTailScanner(_logFiles, reader);
TransactionMetadataCache metadataCache = new TransactionMetadataCache();
LogicalTransactionStore txStore = new PhysicalLogicalTransactionStore(_logFiles, metadataCache, reader, _monitors, false);
CorruptedLogsTruncator logPruner = new CorruptedLogsTruncator(_storeDir, _logFiles, FileSystemRule.get());
life.add(new Recovery(new DefaultRecoveryServiceAnonymousInnerClass2(this, storageEngine, tailScanner, _transactionIdStore, txStore, _versionRepository, NO_MONITOR)
, logPruner, _schemaLife, monitor, SilentProgressReporter.INSTANCE, false));
life.Start();
verifyZeroInteractions(monitor);
}
finally
{
life.Shutdown();
}
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldTellTransactionIdStoreAfterSuccessfulRecovery() throws Exception
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void ShouldTellTransactionIdStoreAfterSuccessfulRecovery()
{
// GIVEN
File file = _logFiles.getLogFileForVersion(_logVersion);
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final org.neo4j.kernel.impl.transaction.log.LogPositionMarker marker = new org.neo4j.kernel.impl.transaction.log.LogPositionMarker();
LogPositionMarker marker = new LogPositionMarker();
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final byte[] additionalHeaderData = new byte[0];
sbyte[] additionalHeaderData = new sbyte[0];
const int masterId = 0;
const int authorId = 1;
const long transactionId = 4;
const long commitTimestamp = 5;
WriteSomeData(file, pair =>
{
LogEntryWriter writer = pair.first();
Consumer <LogPositionMarker> consumer = pair.other();
// last committed tx
writer.writeStartEntry(masterId, authorId, 2L, 3L, additionalHeaderData);
writer.writeCommitEntry(transactionId, commitTimestamp);
consumer.accept(marker);
return(true);
});
// WHEN
bool recoveryRequired = Recover(_storeDir, _logFiles);
// THEN
assertTrue(recoveryRequired);
long[] lastClosedTransaction = _transactionIdStore.LastClosedTransaction;
assertEquals(transactionId, lastClosedTransaction[0]);
assertEquals(LogEntryStart.checksum(additionalHeaderData, masterId, authorId), _transactionIdStore.LastCommittedTransaction.checksum());
assertEquals(commitTimestamp, _transactionIdStore.LastCommittedTransaction.commitTimestamp());
assertEquals(_logVersion, lastClosedTransaction[1]);
assertEquals(marker.ByteOffset, lastClosedTransaction[2]);
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void doNotTruncateCheckpointsAfterLastTransaction() throws java.io.IOException
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void DoNotTruncateCheckpointsAfterLastTransaction()
{
File file = _logFiles.getLogFileForVersion(_logVersion);
LogPositionMarker marker = new LogPositionMarker();
WriteSomeData(file, pair =>
{
LogEntryWriter writer = pair.first();
writer.writeStartEntry(1, 1, 1L, 1L, ArrayUtils.EMPTY_BYTE_ARRAY);
writer.writeCommitEntry(1L, 2L);
writer.writeCheckPointEntry(new LogPosition(_logVersion, LogHeader.LOG_HEADER_SIZE));
writer.writeCheckPointEntry(new LogPosition(_logVersion, LogHeader.LOG_HEADER_SIZE));
writer.writeCheckPointEntry(new LogPosition(_logVersion, LogHeader.LOG_HEADER_SIZE));
writer.writeCheckPointEntry(new LogPosition(_logVersion, LogHeader.LOG_HEADER_SIZE));
Consumer <LogPositionMarker> other = pair.other();
other.accept(marker);
return(true);
});
assertTrue(Recover(_storeDir, _logFiles));
assertEquals(marker.ByteOffset, file.length());
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: public LogPositionMarker getCurrentPosition(LogPositionMarker positionMarker) throws java.io.IOException
public override LogPositionMarker GetCurrentPosition(LogPositionMarker positionMarker)
{
positionMarker.Mark(_logVersionedStoreChannel.Version, _channel.position());
return(positionMarker);
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: public LogEntry readLogEntry(SOURCE channel) throws java.io.IOException
public override LogEntry ReadLogEntry(SOURCE channel)
{
try
{
LogPositionMarker positionMarker = new LogPositionMarker();
long skipped = 0;
while (true)
{
channel.GetCurrentPosition(positionMarker);
sbyte versionCode = channel.Get();
sbyte typeCode = channel.Get();
LogEntryVersion version = null;
LogEntryParser <LogEntry> entryReader;
LogEntry entry;
try
{
version = byVersion(versionCode);
entryReader = version.entryParser(typeCode);
entry = entryReader.Parse(version, channel, positionMarker, _commandReaderFactory);
if (entry != null && skipped > 0)
{
// Take extra care when reading an entry in a bad section. Just because entry reading
// didn't throw exception doesn't mean that it's a sane entry.
if (!logEntryMakesSense(entry))
{
throw new System.ArgumentException("Log entry " + entry + " which was read after " + "a bad section of " + skipped + " bytes was read successfully, but " + "its contents is unrealistic, so treating as part of bad section");
}
_invalidLogEntryHandler.bytesSkipped(skipped);
skipped = 0;
}
}
catch (ReadPastEndException e)
{ // Make these exceptions slip by straight out to the outer handler
throw e;
}
catch (Exception e)
{ // Tag all other exceptions with log position and other useful information
LogPosition position = positionMarker.NewPosition();
e = withMessage(e, e.Message + ". At position " + position + " and entry version " + version);
if (ChannelSupportsPositioning(channel) && _invalidLogEntryHandler.handleInvalidEntry(e, position))
{
(( PositionableChannel )channel).CurrentPosition = positionMarker.ByteOffset + 1;
skipped++;
continue;
}
throwIfInstanceOf(e, typeof(UnsupportedLogVersionException));
throw new IOException(e);
}
if (!entryReader.Skip())
{
return(entry);
}
}
}
catch (ReadPastEndException)
{
return(null);
}
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldRecoverExistingData() throws Exception
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void ShouldRecoverExistingData()
{
File file = _logFiles.getLogFileForVersion(_logVersion);
WriteSomeData(file, pair =>
{
LogEntryWriter writer = pair.first();
Consumer <LogPositionMarker> consumer = pair.other();
LogPositionMarker marker = new LogPositionMarker();
// last committed tx
consumer.accept(marker);
LogPosition lastCommittedTxPosition = marker.newPosition();
writer.writeStartEntry(0, 1, 2L, 3L, new sbyte[0]);
_lastCommittedTxStartEntry = new LogEntryStart(0, 1, 2L, 3L, new sbyte[0], lastCommittedTxPosition);
writer.writeCommitEntry(4L, 5L);
_lastCommittedTxCommitEntry = new LogEntryCommit(4L, 5L);
// check point pointing to the previously committed transaction
writer.writeCheckPointEntry(lastCommittedTxPosition);
_expectedCheckPointEntry = new CheckPoint(lastCommittedTxPosition);
// tx committed after checkpoint
consumer.accept(marker);
writer.writeStartEntry(0, 1, 6L, 4L, new sbyte[0]);
_expectedStartEntry = new LogEntryStart(0, 1, 6L, 4L, new sbyte[0], marker.newPosition());
writer.writeCommitEntry(5L, 7L);
_expectedCommitEntry = new LogEntryCommit(5L, 7L);
return(true);
});
LifeSupport life = new LifeSupport();
RecoveryMonitor monitor = mock(typeof(RecoveryMonitor));
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final java.util.concurrent.atomic.AtomicBoolean recoveryRequired = new java.util.concurrent.atomic.AtomicBoolean();
AtomicBoolean recoveryRequired = new AtomicBoolean();
try
{
StorageEngine storageEngine = mock(typeof(StorageEngine));
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final org.neo4j.kernel.impl.transaction.log.entry.LogEntryReader<org.neo4j.kernel.impl.transaction.log.ReadableClosablePositionAwareChannel> reader = new org.neo4j.kernel.impl.transaction.log.entry.VersionAwareLogEntryReader<>();
LogEntryReader <ReadableClosablePositionAwareChannel> reader = new VersionAwareLogEntryReader <ReadableClosablePositionAwareChannel>();
LogTailScanner tailScanner = GetTailScanner(_logFiles, reader);
TransactionMetadataCache metadataCache = new TransactionMetadataCache();
LogicalTransactionStore txStore = new PhysicalLogicalTransactionStore(_logFiles, metadataCache, reader, _monitors, false);
CorruptedLogsTruncator logPruner = new CorruptedLogsTruncator(_storeDir, _logFiles, FileSystemRule.get());
life.add(new Recovery(new DefaultRecoveryServiceAnonymousInnerClass(this, storageEngine, tailScanner, _transactionIdStore, txStore, _versionRepository, NO_MONITOR, recoveryRequired)
, logPruner, _schemaLife, monitor, SilentProgressReporter.INSTANCE, false));
life.Start();
InOrder order = inOrder(monitor);
order.verify(monitor, times(1)).recoveryRequired(any(typeof(LogPosition)));
order.verify(monitor, times(1)).recoveryCompleted(2);
assertTrue(recoveryRequired.get());
}
finally
{
life.Shutdown();
}
}
private LogCreator LogFile(params Entry[] entries)
{
return((logVersion, positions) =>
{
try
{
AtomicLong lastTxId = new AtomicLong();
_logVersionRepository.CurrentLogVersion = logVersion;
LifeSupport logFileLife = new LifeSupport();
logFileLife.start();
logFileLife.add(_logFiles);
LogFile logFile = _logFiles.LogFile;
try
{
FlushablePositionAwareChannel writeChannel = logFile.Writer;
LogPositionMarker positionMarker = new LogPositionMarker();
LogEntryWriter writer = new LogEntryWriter(writeChannel);
foreach (Entry entry in entries)
{
LogPosition currentPosition = writeChannel.getCurrentPosition(positionMarker).newPosition();
positions.put(entry, currentPosition);
if (entry is StartEntry)
{
writer.writeStartEntry(0, 0, 0, 0, new sbyte[0]);
}
else if (entry is CommitEntry)
{
CommitEntry commitEntry = ( CommitEntry )entry;
writer.writeCommitEntry(commitEntry.TxId, 0);
lastTxId.set(commitEntry.TxId);
}
else if (entry is CheckPointEntry)
{
CheckPointEntry checkPointEntry = ( CheckPointEntry )entry;
Entry target = checkPointEntry.WithPositionOfEntry;
LogPosition logPosition = target != null?positions.get(target) : currentPosition;
Debug.Assert(logPosition != null, "No registered log position for " + target);
writer.writeCheckPointEntry(logPosition);
}
else if (entry is PositionEntry)
{
// Don't write anything, this entry is just for registering a position so that
// another CheckPointEntry can refer to it
}
else
{
throw new System.ArgumentException("Unknown entry " + entry);
}
}
}
finally
{
logFileLife.shutdown();
}
}
catch (IOException e)
{
throw new UncheckedIOException(e);
}
});
}
