}
@Override
public UpdateContainer showPreview(HttpServletRequest request) throws CommandException {
boolean filter = Boolean.parseBoolean(request.getParameter("filter"));
UpdateContainer uc = new UpdateContainer(new ImportPropertiesUpdate(getFile(), encoding, maxNumLines, id));
if (!filter)
return uc;
final Workspace workspace = WorkspaceManager.getInstance().createWorkspace();
Import imp = createImport(workspace, 1000);
try {