private void OnChange(object sender, FileSystemEventArgs e)
{
// make sure the path exist on the file system. Changes can't be made to paths that don't exist
if (File.Exists(e.FullPath) || Directory.Exists(e.FullPath))
{
// check if the path exist in the _existingPaths collection
if (!_existingPaths.Contains(e.FullPath))
{
return;
}
FileSystemObserverKey key = new FileSystemObserverKey()
{
Name = new FileInfo(e.Name).Name,
FullPath = e.FullPath,
EventType = FileSystemObserverEventType.ChangedEventType
};
FileSystemObserverValue value = new FileSystemObserverValue()
{
EventType = FileSystemObserverEventType.ChangedEventType,
Timestamp = DateTime.Now
};
OnFileSystemObserverEvent(key, value);
}
}
private void OnFileSystemObserverEvent(FileSystemObserverKey key, FileSystemObserverValue value)
{
// common method for adding events to pendingEvents collection from the On event handlers
// block other threads from access pending events while processing
lock (_pendingEvents)
{
// save most recent event
_pendingEvents[key] = value;
// start timer if not already started
if (!_timerStarted)
{
_timer.Change(100, 100);
_timerStarted = true;
}
}
}
private void OnRename(object sender, RenamedEventArgs e)
{
FileSystemObserverKey key = new FileSystemObserverKey()
{
OldFullPath = e.OldFullPath,
OldName = new FileInfo(e.OldName).Name,
FullPath = e.FullPath,
Name = new FileInfo(e.Name).Name,
EventType = FileSystemObserverEventType.RenamedEventType
};
FileSystemObserverValue value = new FileSystemObserverValue()
{
EventType = FileSystemObserverEventType.RenamedEventType,
Timestamp = DateTime.Now
};
OnFileSystemObserverEvent(key, value);
}
private void OnDelete(object sender, FileSystemEventArgs e)
{
// check if the path exist in the _existingPaths collection
if (_existingPaths.Contains(e.FullPath))
{
FileSystemObserverKey key = new FileSystemObserverKey()
{
Name = new FileInfo(e.Name).Name,
FullPath = e.FullPath,
EventType = FileSystemObserverEventType.DeletedEventType
};
FileSystemObserverValue value = new FileSystemObserverValue()
{
EventType = FileSystemObserverEventType.DeletedEventType,
Timestamp = DateTime.Now
};
OnFileSystemObserverEvent(key, value);
}
}
