* @param attrName the attribute name to extract URLs from
     */
    public void addChildUrlRule(final String tagName, final String attrName) {
        if (StringUtil.isNotBlank(tagName) && StringUtil.isNotBlank(attrName)) {
            childUrlRuleMap.put(tagName, attrName);
        }
    }

    /**
     * Gets the XPath API instance for this thread.
     *
     * @return the XPath API instance

        if (StringUtil.isNotBlank(username) && StringUtil.isNotBlank(password)) {
            builder.put(Constants.FESEN_USERNAME, username);
            builder.put(Constants.FESEN_PASSWORD, password);
        }
        final String authorities = fessConfig.getFesenHttpSslCertificateAuthorities();
        if (StringUtil.isNotBlank(authorities)) {

                searchLogHelper.addClickLog(clickLog);
            }
        }

        final String targetUrl = pathMappingHelper.replaceUrl(url);

        String hash;
        if (StringUtil.isNotBlank(form.hash)) {
            final String value = URLUtil.decode(form.hash, Constants.UTF_8);
            if (targetUrl.indexOf('#') == -1) {
                final StringBuilder buf = new StringBuilder(value.length() + 100);

            copyOp.excludeNull();
            copyOp.exclude(Constants.QUERIES);
        });
        body.queries = stream(entity.getQueries()).get(stream -> stream.filter(StringUtil::isNotBlank).collect(Collectors.joining("\n")));
        return body;
    }

        document.accept(new AbstractVisitor() {
            @Override
            public void visit(final Link link) {
                final String destination = link.getDestination();
                if (StringUtil.isNotBlank(destination)) {
                    links.add(destination);
                }
                super.visit(link);
            }
        });

        if (!links.isEmpty()) {

        body.permissions = stream(entity.getPermissions()).get(stream -> stream.map(s -> permissionHelper.decode(s))
                .filter(StringUtil::isNotBlank)
                .distinct()
                .collect(Collectors.joining("\n")));
        return asJson(new ApiResult.ApiConfigResponse().setting(body).status(ApiResult.Status.OK).result());
    }

                    form.permissions = stream(entity.getPermissions()).get(stream -> stream.map(permissionHelper::decode)
                            .filter(StringUtil::isNotBlank)
                            .distinct()
                            .collect(Collectors.joining("\n")));
                    form.crudMode = crudMode;
                }).orElse(() -> {

        }

        try {
            final int pos = path.indexOf('/', 6);
            final URI uri = new URI(pos == -1 ? path : path.substring(0, pos));
            if (!"ftp".equals(uri.getScheme()) || (StringUtil.isNotBlank(server) && !server.equals(uri.getHost()))) {
                return false;
            }
            int p = uri.getPort();
            if (p == -1) {
                p = 21;
            }

                            final String distanceKey = key.replaceFirst(".point$", ".distance");
                            final String distance = request.getParameter(distanceKey);
                            if (StringUtil.isNotBlank(distance)) {
                                StreamUtil.stream(e.getValue()).of(s -> s.forEach(pt -> {
                                    List<QueryBuilder> list = geoMap.get(geoField);

            }
        }
        if (!targetList.isEmpty()) {
            insertAll(targetList.stream()
                    .filter(urlQueue -> StringUtil.isNotBlank(urlQueue.getSessionId()) && StringUtil.isNotBlank(urlQueue.getUrl()))
                    .collect(Collectors.toList()), OpType.CREATE, true);
            if (logger.isDebugEnabled()) {