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

    public abstract String getSort();

    public abstract int getStartPosition();

    public abstract int getPageSize();

    public abstract int getOffset();

    public abstract String[] getExtraQueries();

    public abstract Object getAttribute(String name);

    public abstract Locale getLocale();

    public abstract SearchRequestType getType();

    public abstract String getSimilarDocHash();

            }
        }
        return num;
    }

    @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
    public Map<String, String[]> getFields() {

            return 0;
        }

        @Override
        public int getPageSize() {
            return pageSize;
        }

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

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

        @Override

        final String query = buildBaseQuery();
        if (StringUtil.isNotBlank(query)) {
            queryBuf.append(escapeQuery(query));
        }

        stream(params.getExtraQueries())
                .of(stream -> stream.filter(q -> StringUtil.isNotBlank(q) && q.length() <= maxQueryLength).forEach(q -> {
                    appendQuery(queryBuf, q);
                }));

                return 0;
            }

            @Override
            public int getPageSize() {
                return 0;
            }

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

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

            return offset;
        }

        @Override
        public int getPageSize() {
            return pageSize;
        }

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

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

        @Override

        }

        @Override
        public String getQuery() {
            return request.getParameter("q");
        }

        @Override
        public String[] getExtraQueries() {
            return getParamValueArray(request, "ex_q");
        }

        @Override
        public Map<String, String[]> getFields() {
            final Map<String, String[]> fields = new HashMap<>();