public override void Handle(CommandScheduled @event)
{
if (@event.LogEntry == null || @event.EncodedEntry == null)
{
throw new InvalidOperationException("Must set EncodedEntry on event before executing this step.");
}
_writeDataBlocks.WriteBlock(@event.EncodedEntry);
}
public void OnNext(AppendEntriesRequested data, long sequence, bool endOfBatch)
{
if (!data.PreviousLogIndex.HasValue || !data.PreviousLogTerm.HasValue)
{
return;
}
if (data.PreviousLogIndex.Equals(_node.Data.CommitIndex))
{
return;
}
if (data.PreviousLogIndex > _node.Data.CommitIndex ||
data.PreviousLogTerm > _node.Data.CurrentTerm)
{
throw new InvalidOperationException(
"This command is invalid and should not be published to the buffer.");
}
var truncateCommandEntry = new TruncateLogCommandEntry
{
TruncateFromIndex = data.PreviousLogIndex.Value
};
using (var ms = new MemoryStream())
{
Serializer.SerializeWithLengthPrefix(ms, truncateCommandEntry, PrefixStyle.Base128);
_writeDataBlocks.WriteBlock(ms.ToArray());
}
_nodePublisher.PublishEvent(
new NodeCommandScheduled
{
Command = new TruncateLog
{
TruncateFromIndex = data.PreviousLogIndex.Value
}
});
}