* @return the response data
     * @throws CrawlingAccessException if unable to access the URI
     * @throws ChildUrlsException if the URI represents a directory with child URLs
     */
    protected ResponseData getResponseData(final String uri, final boolean includeContent) {
        if (logger.isDebugEnabled()) {

        buf.append(tag);
        buf.append('>');
    }

    /**
     * Appends the string representation of a {@link NodeList}.
     *
     * @param children
     *            The child nodes. Must not be {@literal null}.
     * @param buf
     *            The string buffer. Must not be {@literal null}.
     */
    public static void appendChildren(final NodeList children, final StringBuilder buf) {

            logger.warn("Ignored child URL: childUrl={}, parentUri={}", attrValue, uri);
            return;
        }

        if (logger.isDebugEnabled()) {
            logger.debug("URL conversion: original={}, converted={}", attrValue, u);
        }
        if (StringUtil.isNotBlank(u)) {
            if (logger.isDebugEnabled()) {
                logger.debug("Adding child URL: url={}", u);
            }

            }
        }

        entry.markComplete();
    }

    /**
     * Handle directory change notification
     *
     * @param directoryPath directory path
     * @param childName child file name
     * @param changeType type of change
     */
    public void handleDirectoryChange(String directoryPath, String childName, DirectoryChangeNotifier.DirectoryChangeType changeType) {

            buf.append('[');
            boolean first = true;
            for (final Object child : (String[]) obj) {
                if (first) {
                    first = false;
                } else {
                    buf.append(',');
                }
                buf.append(escapeJson(child));
            }
            buf.append(']');
        } else if (obj instanceof List<?>) {

 *
 * <p>The implementation uses an executor service for concurrent processing of file operations and maintains
 * a cache of URLs to be deleted for batch processing. It handles redirect following and child URL discovery
 * during the crawling process.</p>
 */
public class FileListIndexUpdateCallbackImpl implements IndexUpdateCallback {

    /** Logger for this class. */

        ACCESSED,
        /** Indicates that an exception occurred during URL access. */
        ACCESS_EXCEPTION,
        /** Indicates that a child URL was discovered. */
        CHILD_URL,
        /** Indicates that multiple child URLs were discovered. */
        CHILD_URLS,
        /** Indicates that a URL was evaluated for crawling eligibility. */
        EVALUATED,

```

#### 4.2 Implementation Tasks
- [ ] Extend lease implementation for directories
- [ ] Implement directory metadata caching
- [ ] Add directory change notification integration
- [ ] Create parent-child lease relationships
- [ ] Implement directory lease break handling
- [ ] Add directory enumeration caching

#### 4.3 Integration Points
- Extend `SmbFile` for directory lease support

    /** File write extended attributes access right */
    int FILE_WRITE_EA = 0x00000010; // 5
    /** File execute access right */
    int FILE_EXECUTE = 0x00000020; // 6
    /** File delete child access right */
    int FILE_DELETE = 0x00000040; // 7
    /** File read attributes access right */
    int FILE_READ_ATTRIBUTES = 0x00000080; // 8
    /** File write attributes access right */

     * @return the response data containing metadata and optionally content
     * @throws CrawlingAccessException if an error occurs while accessing the resource
     * @throws ChildUrlsException if the URI represents a directory with child URLs
     */
    protected ResponseData getResponseData(final String uri, final boolean includeContent) {
        if (logger.isDebugEnabled()) {