logger.debug("pattern1: {}, pattern2: {}", pattern1Str, pattern2Str);
        }
        if (pattern1Str != null) {
            pattern1 = Pattern.compile(pattern1Str);
            pattern2 = Pattern.compile(pattern2Str);
        }
    }

    @Override
    public TokenStream create(final TokenStream tokenStream) {
        return new PatternConcatenationFilter(tokenStream, pattern1, pattern2);
    }

        emptyGenerator = new EmptyGenerator();

        // Test adding conditions - this should work without container
        emptyGenerator.addCondition("field1", "pattern1");
        emptyGenerator.addCondition("field1", "pattern2");
        emptyGenerator.addCondition("field2", "pattern.*");

        // We can't test isTarget properly without container,
        // but we can verify conditions are added
        assertNotNull(emptyGenerator);

    /** Map of session IDs to include URL patterns for filtering URLs. */
    protected volatile Map<String, List<Pattern>> includeUrlPatternMap = new HashMap<>();

    /** Map of session IDs to exclude URL patterns for filtering URLs. */
    protected volatile Map<String, List<Pattern>> excludeUrlPatternMap = new HashMap<>();

    /**
     * Creates a new MemoryDataHelper instance.

    }

    /**
     * Gets the list of include URL patterns for the specified session.
     *
     * @param sessionId The session ID.
     * @return The list of compiled include patterns.
     * @throws CrawlerSystemException if the patterns cannot be loaded.
     */
    @Override
    public List<Pattern> getIncludeUrlPatternList(final String sessionId) {
        try {

/**
 * A factory class for managing and creating crawler clients based on URL patterns.
 * This class implements AutoCloseable to properly handle resource cleanup.
 *
 * <p>The factory maintains a map of regular expression patterns to crawler clients,
 * allowing for URL-based client selection. Clients can be added with specific patterns
 * and optionally at specific positions in the processing order.</p>
 *

        final List<Pattern> includeList = getUrlFilterService().getIncludeUrlPatternList(sessionId);
        final List<Pattern> excludeList = getUrlFilterService().getExcludeUrlPatternList(sessionId);

        if (!includeList.isEmpty()) {
            boolean match = false;
            for (final Pattern pattern : includeList) {
                final Matcher matcher = pattern.matcher(url);

    /**
     * Retrieves a list of URL patterns to include for a given session.
     *
     * @param sessionId the ID of the session for which to retrieve the include URL patterns
     * @return a list of compiled regular expression patterns representing the URLs to include
     */
    List<Pattern> getIncludeUrlPatternList(String sessionId);

    /**
     * Retrieves a list of URL patterns to be excluded for a given session.
     *

     * @param regex the regular expression pattern
     */
    public void addRule(final String key, final String regex) {
        regexMap.put(key, Pattern.compile(regex));
    }

    /**
     * Adds a compiled regular expression rule for the specified field.
     * @param key the field name to match against
     * @param pattern the compiled regular expression pattern
     */

 * <p>
 * Pattern syntax supports:
 * <ul>
 *   <li>Standard glob patterns with {@code *}, {@code ?}, and {@code **} wildcards</li>
 *   <li>Explicit syntax prefixes like {@code "glob:"} or {@code "regex:"}</li>
 *   <li>Maven 3 compatible behavior for patterns without explicit syntax</li>
 *   <li>Default exclusion patterns for SCM files when requested</li>
 * </ul>
 *
 * @since 4.0.0
 * @see PathMatcher
 */
@Experimental

    /** Map of regex patterns to passwords for static password configuration. */
    protected Map<Pattern, String> passwordMap = new HashMap<>();

    /** Cache for parsed password configurations from extraction parameters. */
    private final Map<String, List<Pair<Pattern, String>>> configPasswordMap = new ConcurrentHashMap<>();

    /**