// First access - should not delay
        final long start1 = System.nanoTime();
        controller.delayBeforeProcessing();
        final long elapsed1 = (System.nanoTime() - start1) / 1000000;
        assertTrue("First access should not delay", elapsed1 < 50);

        // Second access to same host - should delay
        q.setUrl("http://example.com/page2");

 * 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.
 * The delay is calculated based on the configured delayMillisBeforeProcessing parameter.
 * If the time since the last request to the host is less than the configured delay,
 * the thread waits until the delay has elapsed.
 * This class is thread-safe.

    }

    /**
     * Gets the crawl delay value for the specified user agent from robots.txt.
     * The crawl delay specifies the time (in seconds) to wait between successive requests.
     *
     * @param userAgent The user agent string to match against robots.txt directives
     * @return The crawl delay value in seconds. Returns 0 if no matching directive is found
     *         or no crawl delay is specified for the matching directive.
     */

        }
    }

    /**
     * Applies delay based on the configured interval rules.
     * This method calculates the appropriate delay for the current time
     * and applies it by sleeping the current thread.
     */
    public void delayByRules() {
        final long delay = getDelay();
        if (delay > 0) {
            ThreadUtil.sleep(delay);
        }
    }

    /**

import jakarta.annotation.PostConstruct;

/**
 * Helper class for Samba-related operations.
 */
public class SambaHelper {

    private static final Logger logger = LogManager.getLogger(SambaHelper.class);

    /**
     * SID type for an alias.
     */
    public static final int SID_TYPE_ALIAS = 4;

    /**
     * SID type for a deleted account.
     */
    public static final int SID_TYPE_DELETED = 6;

    /**

import org.codelibs.fess.util.ComponentUtil;

import jakarta.annotation.PostConstruct;

/**
 * Helper class for managing related query configurations.
 * This class provides functionality to load, cache, and retrieve related queries
 * based on search terms and virtual hosts. Related queries are used to suggest
 * alternative or supplementary search terms to improve search results.
 */

    }

    /**
     * Retrieves related content for a given search query.
     * First checks for exact term matches, then evaluates regex patterns.
     * For regex matches, the query placeholder is replaced with the actual query.
     *
     * @param query the search query to find related content for
     * @return array of related content strings, or empty array if no matches found
     */

mvn formatter:format license:format     # Format code and apply licenses
mvn clean jacoco:prepare-agent test jacoco:report  # Generate coverage report
```

### Adding New Features

1. Read related source files and tests
2. Write implementation following existing patterns
3. Add comprehensive tests
4. Run `mvn formatter:format license:format test`
5. Update JavaDoc for changed/new classes

**Principles:**

labels.group_list_name=Name
labels.group_name=Name
labels.group_title_details=Group
labels.related_content_configuration=Related Content
labels.related_content_content=Content
labels.related_content_list_term=Term
labels.related_content_term=Term
labels.related_content_title_details=Related Content
labels.related_query_configuration=Related Query
labels.related_query_list_term=Term
labels.related_query_queries=Queries
labels.related_query_term=Term

     *
     * @param searchEngineClient the search engine client to use for deletion
     * @param id the parent document ID whose children should be deleted
     * @return the number of child documents that were deleted
     */
    public long deleteChildDocument(final SearchEngineClient searchEngineClient, final String id) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();