* @return The reading analyzer name.
     */
    public String getReadingAnalyzerName(final String field, final String lang) {
        final Map<String, FieldAnalyzerMapping> fieldAnalyzerMapping = fieldAnalyzerMappingMap.get(analyzerSettingsIndexName);
        final Set<String> analyzerNames = analyzerMap.get(analyzerSettingsIndexName);
        final String analyzerName;

        // nothing
    }

    @Override
    public SuggestWriterResult write(final Client client, final SuggestSettings settings, final String index, final SuggestItem[] items,
            final boolean update) {
        final BulkRequestBuilder bulkRequestBuilder = client.prepareBulk();

        final SuggestItem[] mergedItems = mergeItems(items);
        if (mergedItems.length == 0) {

            final ActionType<Response> action, final Request request) {
        return client.execute(action, request);
    }

    @Override
    public <Request extends ActionRequest, Response extends ActionResponse> void execute(final ActionType<Response> action,
            final Request request, final ActionListener<Response> listener) {

     */
    @Override
    public ExtractData getText(final InputStream in, final Map<String, String> params) {
        final String resourceName = params == null ? null : params.get(ExtractData.RESOURCE_NAME_KEY);

        String extention;
        String filePrefix;
        if (StringUtil.isNotBlank(resourceName)) {
            final String name = getFileName(resourceName);
            final String[] strings = name.split("\\.");

     */
    protected List<String> getUrlFromTagAttribute(final URL url, final Document document, final String xpath, final String attr,
            final String encoding) {
        if (logger.isDebugEnabled()) {
            logger.debug("Base URL: {}", url);
        }
        final List<String> urlList = new ArrayList<>();
        try {
            final XPathNodes list = getXPathAPI().selectNodeList(document, xpath);

 * It is designed to avoid the instantiation.
 */
public final class Constants {
    /**
     * The GET method.
     */
    public static final String GET_METHOD = "GET";

    /**
     * The HEAD method.
     */
    public static final String HEAD_METHOD = "HEAD";

    /**
     * The POST method.
     */
    public static final String POST_METHOD = "POST";

    /**
     * The status code for OK.

     */
    @Override
    protected boolean exists(final String sessionId, final String url) {
        final boolean ret = super.exists(sessionId, url);
        if (!ret) {
            final QueueHolder queueHolder = getQueueHolder(sessionId);
            final Queue<OpenSearchUrlQueue> waitingQueue = queueHolder.waitingQueue;
            final Queue<OpenSearchUrlQueue> crawlingQueue = queueHolder.crawlingQueue;

     * @param kind The kind.
     */
    public SuggestItem(final String[] text, final String[][] readings, final String[] fields, final long docFreq, final long queryFreq,
            final float userBoost, @Nullable final String[] tags, @Nullable final String[] roles, @Nullable final String[] languages,
            final Kind kind) {
        this.text = String.join(SuggestConstants.TEXT_SEPARATOR, text);

     * @return A PopularWordsResponse instance.
     */
    protected PopularWordsResponse createResponse(final SearchResponse searchResponse) {
        final SearchHit[] hits = searchResponse.getHits().getHits();
        final List<String> words = new ArrayList<>();
        final List<SuggestItem> items = new ArrayList<>();

        final String index;
        if (hits.length > 0) {
            index = hits[0].getIndex();
        } else {

     */
    public RobotsTxt parse(final InputStream stream, final String charsetName) {
        if (!enabled) {
            return null;
        }

        try {
            @SuppressWarnings("resource")
            final BufferedReader reader = new BufferedReader(new InputStreamReader(new BOMInputStream(stream), charsetName));

            String line;
            final RobotsTxt robotsTxt = new RobotsTxt();