encoding = config.getInitParameter(LastaPrepareFilter.ENCODING_KEY);
        if (encoding == null) {
            encoding = LastaPrepareFilter.DEFAULT_ENCODING;
        }

        // ex. sjis:Shift_JIS,eucjp:EUC-JP
        final String value = config.getInitParameter(ENCODING_MAP);
        if (StringUtil.isNotBlank(value)) {
            final String[] encodingPairs = value.split(",");

    public Map<String, String[]> as = new HashMap<>();

    public String[] ex_q;

    public String sdh;

    @Override
    public String getQuery() {
        return q;
    }

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

    @Override

                                    } catch (final Exception ex) {
                                        throw new InvalidQueryException(
                                                messages -> messages.addErrorsInvalidQueryUnknown(UserMessages.GLOBAL_PROPERTY_KEY),
                                                ex.getLocalizedMessage(), ex);
                                    }
                                }));

    @Size(max = 1000)
    public String q;

    @Size(max = 1000)
    public String sort;

    @ValidateTypeFailure
    public Integer num;

    public String[] lang;

    public String[] ex_q;

    @ValidateTypeFailure
    public Integer start;

    @ValidateTypeFailure
    public Integer offset;

    @ValidateTypeFailure
    public Integer pn;

    @Size(max = 1000)