accessResult1.setRuleId("htmlRule");
        accessResult1.setSessionId("id1");
        accessResult1.setStatus(200);
        accessResult1.setUrl("http://www.id1.com/");

        dataService.store(accessResult1);

        final OpenSearchAccessResult accessResult2 = dataService.getAccessResult("id1", "http://www.id1.com/");
        assertNotNull(accessResult2);

        accessResult2.setMimeType("text/html");

     */
    public ContentLengthHelper() {
        // Default constructor
    }

    /** Default maximum content length set to 10MB */
    protected long defaultMaxLength = 10L * 1024L * 1024L;

    /** Map to store maximum content lengths for specific MIME types */
    protected Map<String, Long> maxLengthMap = new HashMap<>();

    /**
     * Adds a maximum content length for a specific MIME type.

     */
    public DataServiceImpl() {
        // Default constructor
    }

    /**
     * Stores an access result in the data store.
     *
     * @param accessResult the access result to store
     * @throws CrawlerSystemException if the access result is null or already exists
     */
    @Override
    public void store(final AccessResultImpl<Long> accessResult) {
        if (accessResult == null) {

 *
 * @param <RESULT> the type of access result
 */
public interface DataService<RESULT extends AccessResult<?>> {

    /**
     * Stores the given access result.
     *
     * @param accessResult the access result to store
     */
    void store(RESULT accessResult);

    /**
     * Updates the given access result.
     *
     * @param accessResult the access result to update
     */

        accessResult1.setRuleId("htmlRule");
        accessResult1.setSessionId("id1");
        accessResult1.setStatus(200);
        accessResult1.setUrl("http://www.id1.com/");

        dataService.store(accessResult1);

        final AccessResult accessResult2 = dataService.getAccessResult("id1", "http://www.id1.com/");
        assertNotNull(accessResult2);

        accessResult2.setMimeType("text/html");

 * This class provides methods for managing URL filtering rules,
 * including adding include and exclude URL patterns, deleting patterns,
 * and retrieving lists of compiled URL patterns. It utilizes a
 * {@link MemoryDataHelper} to store and manage the URL patterns in memory.
 *
 */
public class UrlFilterServiceImpl implements UrlFilterService {

    /**
     * Creates a new UrlFilterServiceImpl instance.
     */
    public UrlFilterServiceImpl() {

/**
 * HostIntervalController is an implementation of {@link org.codelibs.fess.crawler.interval.IntervalController}
 * that controls the interval between requests to the same host.
 * It uses a ConcurrentMap to store the last access time for each host.
 * The delayBeforeProcessing method is overridden to introduce a delay before processing a URL,
 * ensuring that requests to the same host are not made too frequently.

 * only one of them (allRequired = false). It also supports a default rule that always matches.
 *
 * <p>
 * The class uses a map of field names to Pattern objects to store the regular expressions.
 * The match method extracts the values of the specified fields from the ResponseData and
 * applies the corresponding regular expressions.
 * </p>
 *
 * <p>
 * Example usage:
 * </p>
 *

 * This class provides methods for managing a queue of URLs to be crawled,
 * including adding, deleting, and retrieving URLs from the queue.
 * It uses a {@link MemoryDataHelper} to store the URL queue data in memory.
 *
 * <p>
 * The class is responsible for:
 * </p>
 * <ul>
 *   <li>Updating session IDs for URL queues.</li>
 *   <li>Adding new URLs to the queue.</li>

import org.codelibs.fess.crawler.entity.AccessResultImpl;
import org.codelibs.fess.crawler.entity.UrlQueueImpl;

/**
 * The {@code MemoryDataHelper} class provides a helper for managing crawler data in memory.
 * It stores URL queues, access results, and URL patterns for inclusion and exclusion.
 * This class is designed to be used in a single-threaded environment or with external synchronization.
 *