protected void setDDMStructure() throws Exception {
    ThemeDisplay themeDisplay = (ThemeDisplay) _request.getAttribute(WebKeys.THEME_DISPLAY);

    _ddmStructureDisplayFieldValue = StringPool.BLANK;
    _ddmStructureFieldLabel = StringPool.BLANK;
    _ddmStructureFieldName = StringPool.BLANK;
    _ddmStructureFieldValue = null;

    long[] classNameIds = getClassNameIds();
    long[] classTypeIds = getClassTypeIds();

    if (isSubtypeFieldsFilterEnabled()
        && (classNameIds.length == 1)
        && (classTypeIds.length == 1)) {

      _ddmStructureDisplayFieldValue =
          GetterUtil.getString(
              _portletPreferences.getValue("ddmStructureDisplayFieldValue", StringPool.BLANK));
      _ddmStructureFieldName =
          GetterUtil.getString(
              _portletPreferences.getValue("ddmStructureFieldName", StringPool.BLANK));
      _ddmStructureFieldValue =
          _portletPreferences.getValue("ddmStructureFieldValue", StringPool.BLANK);

      if (Validator.isNotNull(_ddmStructureFieldName)
          && Validator.isNotNull(_ddmStructureFieldValue)) {

        AssetRendererFactory assetRendererFactory =
            AssetRendererFactoryRegistryUtil.getAssetRendererFactoryByClassName(
                PortalUtil.getClassName(classNameIds[0]));

        Tuple classTypeFieldName =
            assetRendererFactory.getClassTypeFieldName(
                classTypeIds[0], _ddmStructureFieldName, themeDisplay.getLocale());

        _ddmStructureFieldLabel = (String) classTypeFieldName.getObject(0);
      }
    }
  }
  public AssetEntryQuery getAssetEntryQuery() throws Exception {
    ThemeDisplay themeDisplay = (ThemeDisplay) _request.getAttribute(WebKeys.THEME_DISPLAY);

    long[] groupIds = getGroupIds();

    if (!ArrayUtil.contains(groupIds, themeDisplay.getScopeGroupId())) {
      groupIds = ArrayUtil.append(groupIds, themeDisplay.getScopeGroupId());
    }

    AssetEntryQuery assetEntryQuery =
        AssetPublisherUtil.getAssetEntryQuery(_portletPreferences, groupIds);

    long[] classNameIds = getClassNameIds();
    long[] classTypeIds = getClassTypeIds();

    if (isSubtypeFieldsFilterEnabled()
        && (classNameIds.length == 1)
        && (classTypeIds.length == 1)
        && Validator.isNotNull(getDDMStructureFieldName())
        && Validator.isNotNull(getDDMStructureFieldValue())) {

      AssetRendererFactory assetRendererFactory =
          AssetRendererFactoryRegistryUtil.getAssetRendererFactoryByClassName(
              PortalUtil.getClassName(classNameIds[0]));

      Tuple classTypeFieldName =
          assetRendererFactory.getClassTypeFieldName(
              classTypeIds[0], getDDMStructureFieldName(), themeDisplay.getLocale());

      long ddmStructureId = GetterUtil.getLong(classTypeFieldName.getObject(3));

      assetEntryQuery.setAttribute(
          "ddmStructureFieldName",
          DDMIndexerUtil.encodeName(
              ddmStructureId, getDDMStructureFieldName(), themeDisplay.getLocale()));
      assetEntryQuery.setAttribute("ddmStructureFieldValue", getDDMStructureFieldValue());
    }

    AssetPublisherUtil.processAssetEntryQuery(
        themeDisplay.getUser(), _portletPreferences, assetEntryQuery);

    assetEntryQuery.setAllCategoryIds(getAllAssetCategoryIds());

    if (hasLayoutGroup(groupIds)) {
      assetEntryQuery.setAllTagIds(
          AssetTagLocalServiceUtil.getTagIds(groupIds, getAllAssetTagNames()));
    } else {
      assetEntryQuery.setAllTagIds(
          AssetTagLocalServiceUtil.getTagIds(getGroupIds(), getAllAssetTagNames()));
    }

    assetEntryQuery.setClassTypeIds(classTypeIds);
    assetEntryQuery.setEnablePermissions(isEnablePermissions());
    assetEntryQuery.setExcludeZeroViewCount(isExcludeZeroViewCount());

    String portletName = getPortletName();

    if (!portletName.equals(PortletKeys.RELATED_ASSETS)) {
      assetEntryQuery.setGroupIds(getGroupIds());
    }

    if (isShowOnlyLayoutAssets()) {
      assetEntryQuery.setLayout(themeDisplay.getLayout());
    }

    if (portletName.equals(PortletKeys.RELATED_ASSETS)) {
      AssetEntry layoutAssetEntry = (AssetEntry) _request.getAttribute(WebKeys.LAYOUT_ASSET_ENTRY);

      if (layoutAssetEntry != null) {
        assetEntryQuery.setLinkedAssetEntryId(layoutAssetEntry.getEntryId());
      }
    }

    assetEntryQuery.setPaginationType(getPaginationType());
    assetEntryQuery.setOrderByCol1(getOrderByColumn1());
    assetEntryQuery.setOrderByCol2(getOrderByColumn2());
    assetEntryQuery.setOrderByType1(getOrderByType1());
    assetEntryQuery.setOrderByType2(getOrderByType2());

    return assetEntryQuery;
  }