public FolderWatcher WatchFolder(FolderRegistration folder, FolderEventHandler handler,
FolderEventHandler changedHandler = null,
FolderEventHandler removedHandler = null)
{
if (!DebugOptions.GetOption(null, DebugOptions.WATCHER_ENABLED))
{
return(null);
}
FolderWatcher watcher;
if (!_folderWatchers.TryGetValue(folder, out watcher))
{
watcher = new FolderWatcher();
_folderWatchers.TryAdd(folder, watcher);
}
watcher.Discovered += handler;
if (changedHandler != null)
{
watcher.Changed += changedHandler;
}
if (removedHandler != null)
{
watcher.Removed += removedHandler;
}
// Check existing folders for events
foreach (ZPushFolder existing in _allFolders)
{
if (folder.IsApplicable(existing.Folder))
{
DispatchFolderEvent(folder, watcher, existing, EventKind.Discovered);
}
}
return(watcher);
}
private void DispatchFolderEvent(FolderRegistration reg, FolderWatcher watcher, ZPushFolder folder, EventKind kind)
{
Logger.Instance.Debug(this, "Folder event: {0}, {1}, {2}", folder, reg, kind);
watcher.Dispatch(folder, kind);
}