}

    // Test getLanguages method
    @Test
    public void test_getLanguages_fromParams() {
        SearchRequestParams params = createMockSearchRequestParams();
        ((MockSearchRequestParams) params).setLanguages(new String[] { "en", "ja" });

        try {
            String[] languages = searchHelper.getLanguages(getMockRequest(), params);

            assertNotNull(languages);

            final Object languages = context.request.getAttribute(Constants.REQUEST_LANGUAGES);
            if (languages != null) {
                searchLog.setLanguages(StringUtils.join((String[]) languages, ","));
            } else {
                searchLog.setLanguages(StringUtil.EMPTY);
            }

            @SuppressWarnings("unchecked")

     */
    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()) {

            }

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

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

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

            @Override

            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();

            return null;
        }

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

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

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

        @Override
        public FacetInfo getFacetInfo() {

            return null;
        }

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

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

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

        @Override
        public FacetInfo getFacetInfo() {

        }

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

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

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

        @Override

            num = fessConfig.getPagingSearchPageMaxSizeAsInteger();
        }
        return num;
    }

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

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