private static List <CommitEntry> ParseCommits(TextReader textReader)
{
List <CommitEntry> entries = new List <CommitEntry>();
string line;
while ((line = textReader.ReadLine()) != null)
{
if (!line.StartsWith("--"))
{
continue;
}
var entry = new CommitEntry();
entry.CommitHash = line.Substring(2, 7);
entry.CommitTime = new DateTime(
int.Parse(line.Substring(11, 4)), // year
int.Parse(line.Substring(16, 2)), // month
int.Parse(line.Substring(19, 2))); // day
entry.AuthorName = line.Substring(23);
ParseCommitDetails(textReader, entry);
entries.Add(entry);
}
return(entries);
}
public void Handle(CommitEntry @event)
{
if (@event.EntryTerm > Data.CurrentTerm)
{
throw new InvalidOperationException("Cannot commit a log entry against a term greater than the current term.");
}
Data.CommitIndex = Math.Max(Data.CommitIndex, @event.EntryIdx);
Data.Log.SetLogEntry(@event.EntryIdx, @event.EntryTerm);
}
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);
}
});
}