public static final String FTP_AUTHENTICATIONS = FtpClient.FTP_AUTHENTICATIONS_PROPERTY;
            public static final String ROBOTS_TXT_ENABLED = HcHttpClient.ROBOTS_TXT_ENABLED_PROPERTY;
            public static final String PROXY_PASSWORD = "proxyPassword";
            public static final String PROXY_USERNAME = "proxyUsername";

    /** The key of the configuration. e.g. false */
    String CRAWLER_IGNORE_ROBOTS_TXT = "crawler.ignore.robots.txt";

    /** The key of the configuration. e.g. false */
    String CRAWLER_IGNORE_ROBOTS_TAGS = "crawler.ignore.robots.tags";

    /** The key of the configuration. e.g. true */
    String CRAWLER_IGNORE_CONTENT_EXCEPTION = "crawler.ignore.content.exception";

    private static final String X_ROBOTS_TAG = "X-Robots-Tag";

    private static final String META_NAME_THUMBNAIL_CONTENT = "//META[@name=\"thumbnail\" or @name=\"THUMBNAIL\"]/@content";

    private static final String META_PROPERTY_OGIMAGE_CONTENT = "//META[@property=\"og:image\"]/@content";

    private static final String META_NAME_ROBOTS_CONTENT = "//META[@name=\"robots\" or @name=\"ROBOTS\"]/@content";

                return false;
            };
        };

        final ResponseData responseData = new ResponseData();
        responseData.setUrl("http://example.com/");
        responseData.addMetaData("X-Robots-Tag", "noindex,nofollow");

        try {
            transformer.processXRobotsTag(responseData, new ResultData());
            fail();
        } catch (ChildUrlsException e) {

        if (clientConfigMap != null) {
            paramMap.putAll(clientConfigMap);
        }

        // robots txt enabled
        if (paramMap.get(Param.Client.ROBOTS_TXT_ENABLED) == null) {
            paramMap.put(Param.Client.ROBOTS_TXT_ENABLED, !fessConfig.isCrawlerIgnoreRobotsTxt());
        }

        final String userAgent = getUserAgent();