public void exportNode(File exportDirectory, ICourse course) {
XStream xstream = new XStream();
ChecklistManager cm = ChecklistManager.getInstance();
Checklist checklist = loadOrCreateChecklist(course.getCourseEnvironment().getCoursePropertyManager());
Checklist copy = cm.copyChecklistInRAM(checklist);
String exportContent = xstream.toXML(copy);
ExportUtil.writeContentToFile(getExportFilename(), exportContent, exportDirectory, WebappHelper.getDefaultCharset());
}
@Override
public Controller importNode(File importDirectory, ICourse course, boolean unattendedImport, UserRequest ureq, WindowControl wControl) {