* This service handles the persistence and retrieval of favorite log entries in the search system.
 */
public class FavoriteLogService {

    /**
     * Default constructor.
     */
    public FavoriteLogService() {
        // Default constructor
    }

    /** System helper for common system operations and utilities. */
    @Resource
    protected SystemHelper systemHelper;

        final UserInfoHelper userInfoHelper = ComponentUtil.getUserInfoHelper();
        final SearchHelper searchHelper = ComponentUtil.getSearchHelper();
        final FavoriteLogService favoriteLogService = ComponentUtil.getComponent(FavoriteLogService.class);
        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();

        try {
            final Object docIdObj = request.getAttribute(DOC_ID_FIELD);