private static FileSystemEvent CreateFileSystemEvent(LogRecord record, string[] strings)
{
var fileSystemEvent = new FileSystemEvent()
{
Filename = PathConverter.ReplaceDevicePath(strings[0]),
ProcessId = record.Data.ProcessId,
Type = record.Data.EventType
};
return fileSystemEvent;
}
private void PostponeEventDelivery(FileSystemEvent fileEvent)
{
if (!postponedEvents.ContainsKey(fileEvent.Filename))
{
postponedEvents.Add(fileEvent.Filename, fileEvent);
}
}
private void HandleFileEvent(FileSystemEvent fileEvent)
{
if (fileEvent.Type == EventType.Close)
{
FlushPostponedEvents(fileEvent);
}
else if (CanBePostponed(fileEvent) && AggregateEvents)
{
PostponeEventDelivery(fileEvent);
}
else if (!EventShouldBeIgnored(fileEvent))
{
DeliverEvent(fileEvent, AggregateEvents);
}
}
private void FlushPostponedEvents(FileSystemEvent fileEvent)
{
if (postponedEvents.ContainsKey(fileEvent.Filename))
{
var postponedEvent = postponedEvents[fileEvent.Filename];
postponedEvents.Remove(fileEvent.Filename);
DeliverEvent(postponedEvent, false);
}
}
private bool EventShouldBeIgnored(FileSystemEvent fileEvent)
{
if (fileEvent is RenameOrMoveEvent)
{
return fileEvent.Filename.StartsWith(RECYCLE_BIN_PREFIX, StringComparison.CurrentCultureIgnoreCase);
}
return false;
}
private void DeliverEvent(FileSystemEvent fileEvent, bool postponeDelivery)
{
switch (fileEvent.Type)
{
case EventType.Change:
OnChange?.Invoke(fileEvent.Filename, fileEvent.ProcessId);
break;
case EventType.Create:
OnCreate?.Invoke(fileEvent.Filename, fileEvent.ProcessId);
break;
case EventType.Delete:
OnDelete?.Invoke(fileEvent.Filename, fileEvent.ProcessId);
break;
case EventType.Move:
OnRenameOrMove?.Invoke(fileEvent.Filename, ((RenameOrMoveEvent) fileEvent).OldFilename, fileEvent.ProcessId);
break;
default:
break;
}
}
private bool CanBePostponed(FileSystemEvent fileEvent)
{
return fileEvent.Type == EventType.Change || fileEvent.Type == EventType.Create;
}
