/**
     * Returns whether all regular expressions must match for this rule to match.
     * @return true if all patterns must match, false if only one needs to match
     */
    public boolean isAllRequired() {
        return allRequired;
    }

    /**
     * Sets whether all regular expressions must match for this rule to match.
     * @param allRequired true if all patterns must match, false if only one needs to match
     */

            queryBuilder.must(QueryBuilders.termsQuery(FieldNames.ROLES, roles));
        } else {
            queryBuilder.must(QueryBuilders.termQuery(FieldNames.ROLES, SuggestConstants.DEFAULT_ROLE));
        }
        if (!fields.isEmpty()) {
            queryBuilder.must(QueryBuilders.termsQuery(FieldNames.FIELDS, fields));
        }
        if (!languages.isEmpty()) {

     */
    public void register(final List<String> keyList) {
        if (keyList == null || keyList.isEmpty()) {
            throw new IllegalArgumentException("keyList must not be null or empty.");
        }
        getExtractorFactory().addExtractor(keyList, this);
    }

    /**
     * Returns the MimeTypeHelper instance from the CrawlerContainer.

     */
    public void setDefaultEncoding(final String defaultEncoding) {
        if (StringUtil.isBlank(defaultEncoding)) {
            throw new IllegalArgumentException("Default encoding must not be blank.");
        }
        this.defaultEncoding = defaultEncoding;
    }

    /**
     * Adds an encoding mapping from source to target encoding.
     *
     * @param source the source encoding name

     * Creates a new SitemapUrl instance.
     */
    public SitemapUrl() {
        super();
    }

    /**
     * URL of the page. This URL must begin with the protocol (such as http) and
     * end with a trailing slash, if your web server requires it. This value
     * must be less than 2,048 characters.
     */
    private String loc;

    /**
     * The date of last modification of the file. This date should be in W3C

     * If no extractor exists for the key, a new array containing the extractor is created and associated with the key.
     *
     * @param key       The key associated with the extractor. Must not be null or blank.
     * @param extractor The extractor to add. Must not be null.
     */
    public void addExtractor(final String key, final Extractor extractor) {
        if (StringUtil.isBlank(key)) {

      meet the following conditions:

      (a) You must give any other recipients of the Work or
          Derivative Works a copy of this License; and

      (b) You must cause any modified files to carry prominent notices
          stating that You changed the files; and

      (c) You must retain, in the Source form of any Derivative Works

     */
    public void setMaxClientFactorySize(final int maxClientFactorySize) {
        if (maxClientFactorySize <= 0) {
            throw new IllegalArgumentException("maxClientFactorySize must be positive.");
        }
        this.maxClientFactorySize = maxClientFactorySize;
    }

      meet the following conditions:

      (a) You must give any other recipients of the Work or
          Derivative Works a copy of this License; and

      (b) You must cause any modified files to carry prominent notices
          stating that You changed the files; and

      (c) You must retain, in the Source form of any Derivative Works

      <match value="bplist16" type="string" offset="0"/>
    </magic>
    <!-- The priority is 60, as .webarchive files often contain
         (X)HTML content. The bplist magic must trump the XHTML
         magics further within the file. This must also be
         independent of the internal ordering of patterns within
         MimeTypes -->
    <magic priority="60">
      <match value="bplist" type="string" offset="0"/>