} else {
            stopwords = new String[0];
        }

        ignoreCase = settings.getAsBoolean("ignore_case", Boolean.FALSE).booleanValue();
        if (ignoreCase) {
            for (int i = 0; i < stopwords.length; i++) {
                stopwords[i] = stopwords[i].toLowerCase(Locale.ROOT);
            }
        }
    }

    @Override
    public TokenStream create(final TokenStream tokenStream) {

            final long requestInterval) {
        final Deferred<SuggestIndexResponse> deferred = new Deferred<>();
        threadPool.execute(() -> {
            final long start = System.currentTimeMillis();
            int numberOfSuggestDocs = 0;
            int numberOfInputDocs = 0;
            final List<Throwable> errors = new ArrayList<>();

    protected Normalizer normalizer;
    /** The analyzer. */
    protected SuggestAnalyzer analyzer;
    /** The thread pool. */
    protected ExecutorService threadPool;

    /** The thread pool size. */
    protected int threadPoolSize = Runtime.getRuntime().availableProcessors();

    /**
     * Sets the suggest settings.
     * @param settings The suggest settings.
     * @return This builder instance.
     */

     */
    @Override
    public void addClient(final String regex, final CrawlerClient client, final int pos) {
        factory.addClient(regex, client, pos);
    }

    /**
     * Returns the hash code of the wrapped factory.
     * @return The hash code.
     */
    @Override
    public int hashCode() {
        return factory.hashCode();
    }

    /**

    private static final String NBEST_EXAMPLES = "nbest_examples";

    private final UserDictionary userDictionary;
    private final Mode mode;
    private final String nBestExamples;
    private final int nBestCost;

    private boolean discartPunctuation;

    public KuromojiTokenizerFactory(IndexSettings indexSettings, Environment env, String name, Settings settings) {
        super(indexSettings, settings, name);

import org.opensearch.index.IndexSettings;
import org.opensearch.index.analysis.AbstractTokenFilterFactory;

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);

            final String[] strings = name.split("\\.");
            final StringBuilder buf = new StringBuilder(100);
            if (strings.length > 1) {
                for (int i = 0; i < strings.length - 1; i++) {
                    if (buf.length() != 0) {
                        buf.append('.');
                    }
                    buf.append(strings[i]);
                }

                    } else if ((value = getValue(CRAWL_DELAY_RECORD, line)) != null) {
                        if (!currentDirectiveList.isEmpty()) {
                            try {
                                final int crawlDelay = Integer.parseInt(value);
                                for (final Directive directive : currentDirectiveList) {
                                    directive.setCrawlDelay(Math.max(0, crawlDelay));

     */
    public AbstractIntervalController() {
        // NOP
    }

    /*
     * (non-Javadoc)
     *
     * @see org.codelibs.fess.crawler.interval.IntervalController#delay(int)
     */
    @Override
    public void delay(final int type) {
        try {
            switch (type) {
            case PRE_PROCESSING:
                delayBeforeProcessing();
                break;
            case POST_PROCESSING:

        // nothing
    }

    @Override
    public String normalize(final String text, final String field, final String... langs) {
        final char[] chars = new char[text.length()];
        for (int i = 0; i < chars.length; i++) {
            final char c = text.charAt(i);
            if (c >= 'ａ' && c <= 'ｚ') {
                chars[i] = (char) (c - 'ａ' + 'a');
            } else if (c >= 'Ａ' && c <= 'Ｚ') {