protected void exportPortletPreference(
      PortletDataContext portletDataContext,
      long ownerId,
      int ownerType,
      boolean defaultUser,
      PortletPreferences portletPreferences,
      String portletId,
      long plid,
      Element parentElement)
      throws Exception {

    String preferencesXML = portletPreferences.getPreferences();

    if (Validator.isNull(preferencesXML)) {
      preferencesXML = PortletConstants.DEFAULT_PREFERENCES;
    }

    Document document = SAXReaderUtil.read(preferencesXML);

    Element rootElement = document.getRootElement();

    rootElement.addAttribute("owner-id", String.valueOf(ownerId));
    rootElement.addAttribute("owner-type", String.valueOf(ownerType));
    rootElement.addAttribute("default-user", String.valueOf(defaultUser));
    rootElement.addAttribute("plid", String.valueOf(plid));
    rootElement.addAttribute("portlet-id", portletId);

    if (ownerType == PortletKeys.PREFS_OWNER_TYPE_ARCHIVED) {
      PortletItem portletItem = PortletItemLocalServiceUtil.getPortletItem(ownerId);

      rootElement.addAttribute("archive-user-uuid", portletItem.getUserUuid());
      rootElement.addAttribute("archive-name", portletItem.getName());
    } else if (ownerType == PortletKeys.PREFS_OWNER_TYPE_USER) {
      User user = UserLocalServiceUtil.fetchUserById(ownerId);

      if (user == null) {
        return;
      }

      rootElement.addAttribute("user-uuid", user.getUserUuid());
    }

    List<Node> nodes =
        document.selectNodes(
            "/portlet-preferences/preference[name/text() = " + "'last-publish-date']");

    for (Node node : nodes) {
      document.remove(node);
    }

    String path =
        getPortletPreferencesPath(portletDataContext, portletId, ownerId, ownerType, plid);

    Element portletPreferencesElement = parentElement.addElement("portlet-preferences");

    portletPreferencesElement.addAttribute("path", path);

    if (portletDataContext.isPathNotProcessed(path)) {
      portletDataContext.addZipEntry(path, document.formattedString(StringPool.TAB, false, false));
    }
  }