CmisSync.Lib.Sync.CmisRepo.SynchronizedFolder.DeleteRemoteFolder C# (CSharp) Method

            public void DeleteRemoteFolder(IFolder folder, SyncItem syncItem, string upperFolderPath)
            {
                try
                {
                    Logger.Debug("Removing remote folder tree: " + folder.Path);
                    IList<string> failedIDs = folder.DeleteTree(true, null, true);
                    if (failedIDs == null || failedIDs.Count != 0)
                    {
                        Logger.Error("Failed to completely delete remote folder " + folder.Path);
                        // TODO Should we retry? Maybe at least once, as a manual recursion instead of a DeleteTree.
                    }

                    // Delete the folder from database.
                    database.RemoveFolder(syncItem);
                }
                catch (CmisPermissionDeniedException e)
                {

                    // TODO: Add resource
                    string message = String.Format("フォルダ {0} に対して削除やリネームする権限がないため、サーバからこのフォルダを復元します（フォルダに含まれるファイル数が多い場合、復元に時間がかかります）。", syncItem.LocalPath);
                    Utils.NotifyUser(message);


                    // We don't have the permission to delete this folder. Warn and recreate it.
                    /*
                    Utils.NotifyUser("You don't have the necessary permissions to delete folder " + folder.Path
                        + "\nIf you feel you should be able to delete it, please contact your server administrator");
                    */
                    database.RemoveFolder(syncItem);
                    DownloadDirectory(folder, syncItem.RemotePath, syncItem.LocalPath);
                }
            }