return offset;
        }

        @Override
        public String[] getExtraQueries() {
            return extraQueries;
        }

        @Override
        public Object getAttribute(String name) {
            return attributes.get(name);
        }

        @Override
        public Locale getLocale() {
            return locale;
        }

        @Override

        return LaRequestUtil.getOptionalRequest()
                .map(request -> ComponentUtil.getFessConfig()
                        .getQueryLanguages(request.getLocales(), (String[]) request.getAttribute(Constants.REQUEST_LANGUAGES)));
    }

    /**
     * Builds a default query builder with configured fields and boost values.
     * @param fessConfig The Fess configuration.

            ssn.setAttribute("ntlmuser", ntlm.getUsername());
        } else {
            final HttpSession ssn = request.getSession(false);
            if (ssn == null || ssn.getAttribute("NtlmHttpAuth") == null) {
                response.setHeader("WWW-Authenticate", "NTLM");
                if (offerBasic) {
                    response.addHeader("WWW-Authenticate", "Basic realm=\"" + realm + "\"");

     * @return OptionalThing containing the query set
     */
    protected OptionalThing<Set<String>> getQuerySet() {
        return LaRequestUtil.getOptionalRequest()
                .map(req -> ((Set<String>) req.getAttribute(Constants.HIGHLIGHT_QUERIES)))
                .filter(s -> s != null);
    }

    /**
     * Gets the content description from highlighted fields.
     * Returns the first non-blank highlighted field content.

        @Override
        public <T extends HttpUpgradeHandler> T upgrade(Class<T> handlerClass) throws IOException, ServletException {
            return null;
        }

        @Override
        public Object getAttribute(String name) {
            return null;
        }

        @Override
        public Enumeration<String> getAttributeNames() {
            return null;
        }

        @Override

            }

            @Override
            public Locale getLocale() {
                return Locale.ENGLISH;
            }

            @Override
            public Object getAttribute(String name) {
                return null;
            }

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

            @Override

    /**
     * Returns the attribute.
     *
     * @param name The name of the attribute.
     * @return The attribute.
     */
    public abstract Object getAttribute(String name);

    /**
     * Returns the locale.
     *
     * @return The locale.
     */
    public abstract Locale getLocale();

    /**
     * Returns the search request type.
     *

            ssn.setAttribute("ntlmuser", ntlm.getUsername());
        } else {
            final HttpSession ssn = request.getSession(false);
            if (ssn == null || ssn.getAttribute("NtlmHttpAuth") == null) {
                response.setHeader("WWW-Authenticate", "NTLM");
                if (offerBasic) {
                    response.addHeader("WWW-Authenticate", "Basic realm=\"" + this.realm + "\"");

        parser.setAllowLeadingWildcard(allowLeadingWildcard);
        LaRequestUtil.getOptionalRequest().ifPresent(req -> {
            if (req.getAttribute(Constants.DEFAULT_QUERY_OPERATOR) instanceof final String op) {
                parser.setDefaultOperator(Operator.valueOf(op));
            } else {
                parser.setDefaultOperator(defaultOperator);

        }

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

        @Override
        public Object getAttribute(final String name) {
            return parent.getAttribute(name);
        }

        @Override
        public Locale getLocale() {
            return parent.getLocale();
        }

        @Override