private void createPagePermissionXML(Element permissionsElement,
final ContentPermissionEntity permission) {
GroupEntity group = getDao().getGroupDao().getById(permission.getGroupId());
Element permissionElement = permissionsElement.addElement("permission");
permissionElement.addElement("group").setText(group.getName());
permissionElement.addElement("permissionType").setText(
permission.getPermission().name());
permissionElement.addElement("allLanguages").setText(
String.valueOf(permission.isAllLanguages()));
permissionElement.addElement("languages").setText(notNull(
permission.getLanguages()));