// Create multiple threads adding patterns
        Thread thread1 = new Thread(() -> {
            for (int i = 0; i < 100; i++) {
                urlFilter.addInclude("https://site" + i + ".com/.*");
            }
        });

        Thread thread2 = new Thread(() -> {
            for (int i = 0; i < 100; i++) {
                urlFilter.addExclude(".*\\.type" + i + "$");
            }
        });

 *   <li>Processing the response using a {@link ResponseProcessor} associated with a {@link Rule}.</li>
 *   <li>Extracting child URLs and adding them to the queue using {@link #storeChildUrls(Set, String, int)}
 *       or {@link #storeChildUrl(String, String, float, int)}.</li>
 *   <li>Handling exceptions that may occur during the crawling process.</li>
 * </ol>
 *
 * <p>

     * @return An empty map.
     */
    protected Map<String, Object> createEmptyMap() {
        final Map<String, Object> map = new HashMap<>();
        map.put(FieldNames.TEXT, StringUtil.EMPTY);

        for (int i = 0; i < readings.length; i++) {
            map.put(FieldNames.READING_PREFIX + i, new String[] {});
        }

        map.put(FieldNames.FIELDS, new String[] {});
        map.put(FieldNames.TAGS, new String[] {});

            }
        }

        LogStream.setInstance(new PrintStream(new OutputStream() {
            private static final int MAX_LEN = 1000;

            private final ByteArrayOutputStream buf = new ByteArrayOutputStream(MAX_LEN);

            @Override
            public void write(final int b) throws IOException {
                if (b == '\n' || b == '\r' || buf.size() >= MAX_LEN) {
                    try {

        final InputStream in = ResourceUtil.getResourceAsStream("extractor/msoffice/test.xls");
        final String content = msExcelExtractor.getText(in, null).getContent();
        CloseableUtil.closeQuietly(in);
        logger.info(content);
        assertTrue(content.contains("テスト"));
    }

    public void test_getText_null() {
        try {
            msExcelExtractor.getText(null, null);
            fail();

        final InputStream in = ResourceUtil.getResourceAsStream("extractor/msoffice/test.ppt");
        final String content = msPowerPointExtractor.getText(in, null).getContent();
        CloseableUtil.closeQuietly(in);
        logger.info(content);
        assertTrue(content.contains("テスト"));
    }

    public void test_getText_null() {
        try {
            msPowerPointExtractor.getText(null, null);
            fail();

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

public class KuromojiKatakanaStemmerFactory extends AbstractTokenFilterFactory {

    private final int minimumLength;

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

        } 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) {

        } 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 InputStream in = ResourceUtil.getResourceAsStream("extractor/test.txt");
        final String content = textExtractor.getText(in, null).getContent();
        CloseableUtil.closeQuietly(in);
        logger.info(content);
        assertTrue(content.contains("テスト"));
    }

    public void test_getText_null() {
        try {
            textExtractor.getText(null, null);
            fail();