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

            assertNotNull(languages);
            if (languages.length > 0) {
                // Note: The actual order might be different due to normalization
                boolean hasEn = false, hasJa = false;
                for (String lang : languages) {
                    if ("en".equals(lang))

            if (searchField.equals(field)) {
                return true;
            }
        }
        return false;
    }

    /**
     * Gets the query languages from the current request.
     * @return An optional containing the query languages array, or empty if not available.
     */
    protected OptionalThing<String[]> getQueryLanguages() {
        return LaRequestUtil.getOptionalRequest()

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

    /**
     * Returns the conditions.
     *
     * @return The conditions.
     */
    public abstract Map<String, String[]> getConditions();

    /**
     * Returns the languages.
     *
     * @return The languages.
     */
    public abstract String[] getLanguages();

    /**
     * Returns the geo info.
     *
     * @return The geo info.
     */
    public abstract GeoInfo getGeoInfo();

        String query = "";
        Map<String, String[]> fields = new HashMap<>();
        Map<String, String[]> conditions = new HashMap<>();
        String[] languages = new String[0];
        GeoInfo geoInfo = null;
        FacetInfo facetInfo = null;
        HighlightInfo highlightInfo = null;
        String sort = "";
        int startPosition = 0;
        int pageSize = 10;

    /** The page number. */
    @ValidateTypeFailure
    public Integer pn;

    /** The number of results to display. */
    @ValidateTypeFailure
    public Integer num;

    /** The languages. */
    public String[] lang;

    /** The fields. */
    public Map<String, String[]> fields = new HashMap<>();

    /** The conditions. */
    public Map<String, String[]> as = new HashMap<>();

/**
 * Helper class for language detection.
 */
public class LanguageHelper {
    private static final Logger logger = LogManager.getLogger(LanguageHelper.class);

    /** An array of language fields. */
    protected String[] langFields;

    /** An array of supported languages. */
    protected String[] supportedLanguages;

    /** The language detector. */
    protected LanguageDetector detector;

                    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(',');

# Sorts for inner hits in collapse queries.
query.collapse.inner.hits.sorts=
# Default languages for queries.
query.default.languages=
# Default preference for JSON queries.
query.json.default.preference=_query
# Default preference for GSA queries.
query.gsa.default.preference=_query
# Language mapping for queries.
query.language.mapping=\
ar=ar\n\
bg=bg\n\
bn=bn\n\
ca=ca\n\
ckb-iq=ckb-iq\n\
ckb_IQ=ckb-iq\n\

    /** Exit code for failed operation. */
    public static final int EXIT_FAIL = 1;

    /** Document crawler format identifier. */
    public static final String DCF = "dcf";

    /** Constant representing all languages. */
    public static final String ALL_LANGUAGES = "all";

    /** Invalid numeric parameter value. */
    public static final String INVALID_NUMERIC_PARAMETER = "-1";