assertEquals(0, item.getTags().length);
        assertNotNull(item.getRoles());
        assertEquals(1, item.getRoles().length); // Default role is added
        assertNotNull(item.getLanguages());
        assertEquals(0, item.getLanguages().length);
        assertNotNull(item.getKinds());
        assertEquals(1, item.getKinds().length);
        assertEquals(SuggestItem.Kind.DOCUMENT, item.getKinds()[0]);
    }

    @Test

        }
        mergedItem.tags = tagList.toArray(new String[tagList.size()]);

        final List<String> langList = new ArrayList<>(item1.getLanguages().length + item2.getLanguages().length);
        Collections.addAll(langList, item1.getLanguages());
        for (final String lang : item2.getLanguages()) {
            if (!langList.contains(lang)) {
                langList.add(lang);
            }
        }

     */
    public String[] getLanguages(final HttpServletRequest request, final SearchRequestParams params) {
        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();
        if (params.getLanguages() != null) {
            final Set<String> langSet = new HashSet<>();
            for (final String lang : params.getLanguages()) {

            if (virtualHost != null) {
                tags.add(virtualHost);
            }

            if (sb.length() > 0) {
                final String[] langs = searchLog.getLanguages() == null ? new String[] {} : searchLog.getLanguages().split(",");
                stream(searchLog.getRoles()).of(stream -> stream.forEach(role -> roles.add(role)));

        final StringBuilder buf = new StringBuilder(255);
        try {
            final RequestParameter parameter = RequestParameter.parse(request);
            final String[] langs = searchHelper.getLanguages(request, parameter);

            final SuggestHelper suggestHelper = ComponentUtil.getSuggestHelper();
            final SuggestRequestBuilder builder = suggestHelper.suggester().suggest();

    }

    @Override
    public Map<String, String[]> getFields() {
        return fields;
    }

    @Override
    public String[] getLanguages() {
        return stream(lang).get(stream -> stream.filter(StringUtil::isNotBlank).distinct().toArray(n -> new String[n]));
    }

    @Override
    public GeoInfo getGeoInfo() {

            // redirect to index page
            form.q = null;
            return redirectToRoot();
        }

        try {
            buildFormParams(form);
            form.lang = searchHelper.getLanguages(request, form);
            final WebRenderData renderData = new WebRenderData();
            searchHelper.search(form, renderData, getUserBean());
            return asHtml(virtualHost(path_SearchJsp)).renderWith(data -> {

        }

        @Override
        public Map<String, String[]> getConditions() {
            return parent.getConditions();
        }

        @Override
        public String[] getLanguages() {
            return parent.getLanguages();
        }

        @Override
        public GeoInfo getGeoInfo() {
            return parent.getGeoInfo();
        }

        @Override

            }

            @Override
            public Map<String, String[]> getConditions() {
                return new HashMap<>();
            }

            @Override
            public String[] getLanguages() {
                return new String[0];
            }

            @Override
            public GeoInfo getGeoInfo() {
                return null;
            }

            @Override

                    appendJson("query-offset", entity.getQueryOffset(), buf).append(',');
                    appendJson("referer", entity.getReferer(), buf).append(',');
                    appendJson("languages", entity.getLanguages(), buf).append(',');
                    appendJson("roles", entity.getRoles(), buf).append(',');
                    appendJson("user-agent", entity.getUserAgent(), buf).append(',');