* </ul>
 *
 * <p>Fields:</p>
 * <ul>
 *   <li>{@code normalizers} - A list of normalizers to be applied in sequence.</li>
 * </ul>
 */
public class NormalizerChain implements Normalizer {
    /**
     * Constructs a new {@link NormalizerChain}.
     */
    public NormalizerChain() {
        // nothing
    }

    List<Normalizer> normalizers = new ArrayList<>();

    @Override

        /** The crawl delay in seconds for this directive. */
        private int crawlDelay;

        /** The list of allowed paths for this directive. */
        private final List<String> allowedPaths = new ArrayList<>();

        /** The list of disallowed paths for this directive. */
        private final List<String> disallowedPaths = new ArrayList<>();

        /**

     */
    void init() throws IOException;

    /**
     * Converts the given text into a list of readings based on the specified field and languages.
     *
     * @param text the text to be converted.
     * @param field the field to be used for conversion.
     * @param langs the languages to be used for conversion.
     * @return a list of readings for the given text.
     * @throws IOException if an I/O error occurs during conversion.

                    }
                    if (logger.isDebugEnabled()) {
                        logger.debug(line);
                    }
                    list.add(line);
                    if (list.size() > maxLineBuffer) {
                        list.remove(0);
                    }
                } catch (final IOException e) {
                    throw new CrawlerSystemException(e);
                }
            }

    /**
     * Adds an extractor to the factory for all keys in the provided list.
     *
     * @param keyList the list of keys to associate with the extractor
     * @param extractor the extractor to add
     * @throws CrawlerSystemException if the key list is null or empty, or if the extractor is null
     */
    public void addExtractor(final List<String> keyList, final Extractor extractor) {

                // } else if ("list".equals(qName)) {
                // nothing
            } else if ("item".equals(qName) && fieldName != null) {
                final Object obj = dataMap.get(fieldName);
                if (obj instanceof List) {
                    @SuppressWarnings("unchecked")
                    final List<String> list = (List<String>) obj;
                    list.add(buffer.toString());
                }

     */
    void deleteAll();

    /**
     * Offers all URL queues.
     *
     * @param sessionId The session ID.
     * @param newUrlQueueList The list of new URL queues.
     */
    void offerAll(String sessionId, List<QUEUE> newUrlQueueList);

    /**
     * Polls a URL queue.
     *
     * @param sessionId The session ID.
     * @return The URL queue.
     */

    }

    /**
     * Converts child URLs using the URL convert helper.
     *
     * @param requestDataList the list of request data to convert
     * @return the converted list of request data
     */
    protected List<RequestData> convertChildUrlList(final List<RequestData> requestDataList) {
        try {
            final UrlConvertHelper urlConvertHelper = crawlerContainer.getComponent("urlConvertHelper");

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.crawler.interval.impl;

import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;

                return null;
            }
        };

        assertNull(extractorFactory.getExtractor("test"));
        final List<String> list = new ArrayList<String>();
        list.add("test");
        extractorFactory.addExtractor(list, extractor);
        assertEquals(extractor, extractorFactory.getExtractor("test"));
    }

    public void test_getExtractor() {
        String key;