* This class cannot be instantiated.
 */
public final class FieldNames {
    /** The unique identifier field. */
    public static final String ID = "_id";
    /** The text content field. */
    public static final String TEXT = "text";
    /** The prefix for reading fields. */
    public static final String READING_PREFIX = "reading_";
    /** The score field. */
    public static final String SCORE = "score";

     */
    @Override
    public void addIncludeUrlFilter(final String sessionId, final List<String> urlList) {
        final Set<String> invalidateSet = new HashSet<>();
        final List<OpenSearchUrlFilter> urlFilterList = new ArrayList<>(urlList.size());
        for (final String url : urlList) {
            final OpenSearchUrlFilter esUrlFilter = new OpenSearchUrlFilter();

            return builder.execute();
        });
        final OpenSearchResultList<OpenSearchAccessResult> targetList = new OpenSearchResultList<>();
        final SearchHits hits = response.getHits();
        final TotalHits totalHits = hits.getTotalHits();
        final long totalHitsValue = totalHits != null ? totalHits.value() : 0;
        targetList.setTotalHits(totalHitsValue);

     */
    public void test_concurrentPropertyAccess() throws Exception {
        final int threadCount = 10;
        final int iterationsPerThread = 100;
        final CountDownLatch startLatch = new CountDownLatch(1);
        final CountDownLatch endLatch = new CountDownLatch(threadCount);
        final AtomicInteger errorCount = new AtomicInteger(0);

        // Set initial values

     */
    protected void storeChildUrls(final Set<RequestData> childUrlList, final String url, final int depth) {
        if (crawlerContext.getMaxDepth() >= 0 && depth > crawlerContext.getMaxDepth()) {
            return;
        }

        // add url and filter
        final Set<String> urlSet = new HashSet<>();
        final List<UrlQueue<?>> childList = childUrlList.stream()

     * @param file The FTP file object, or null if not found
     */
    protected void updateResponseData(final String uri, final boolean includeContent, final ResponseData responseData,
            final FTPClient client, final FtpInfo ftpInfo, final FTPFile file) {
        if (file == null) {
            responseData.setHttpStatusCode(Constants.NOT_FOUND_STATUS_CODE);

            return tempDir;
        } catch (final Exception e) {
            throw new CrawlerSystemException(e);
        }
    }

    private static void generateContents(final File dir, final int count) throws Exception {
        if (count <= 0) {
            return;
        }

        final String content = getHtmlContent(count);

        final File indexFile = new File(dir, "index.html");

    private RESPONSE response = null;

    private Throwable error = null;

    private final Promise promise = new Promise();

    private final Queue<Consumer<RESPONSE>> doneCallbacks = new LinkedBlockingQueue<>();

    private final Queue<Consumer<Throwable>> errorCallbacks = new LinkedBlockingQueue<>();

    private final CountDownLatch latch = new CountDownLatch(1);

    /**

    /**
     * Constructor for SuggestResponse.
     * @param index The index name.
     * @param tookMs The time taken in milliseconds.
     * @param words The list of suggested words.
     * @param total The total number of hits.
     * @param items The list of suggested items.
     */
    public SuggestResponse(final String index, final long tookMs, final List<String> words, final long total,

public class AlphaNumWordFilterFactory extends AbstractTokenFilterFactory {

    private final int maxTokenLength;

    public AlphaNumWordFilterFactory(final IndexSettings indexSettings, final Environment environment, final String name,
            final Settings settings) {
        super(indexSettings, name, settings);