import jakarta.annotation.PostConstruct;
import jakarta.annotation.PreDestroy;

public class ThumbnailManager {
    private static final String NOIMAGE_FILE_SUFFIX = ".txt";

    protected static final String THUMBNAILS_DIR_NAME = "thumbnails";

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

    protected File baseDir;

    private static final String ACCESS_TOKEN_HELPER = "accessTokenHelper";

    private static final String AUTHENTICATION_MANAGER = "authenticationManager";

    private static final String THUMBNAIL_MANAGER = "thumbnailManager";

    private static final String SSO_MANAGER = "ssoManager";

    private static final String PERMISSION_HELPER = "permissionHelper";

    private static final String QUERY_PARSER = "queryParser";

        }
        try {
            if (fessConfig.isThumbnailCrawlerEnabled()) {
                final ThumbnailManager thumbnailManager = ComponentUtil.getThumbnailManager();
                final String thumbnailField = fessConfig.getIndexFieldThumbnail();
                docList.stream().forEach(doc -> {
                    if (!thumbnailManager.offer(doc)) {
                        if (logger.isDebugEnabled()) {

public abstract class FessSearchAction extends FessBaseAction {

    protected static final String LABEL_FIELD = "label";

    @Resource
    protected SearchHelper searchHelper;

    @Resource
    protected ThumbnailManager thumbnailManager;

    @Resource
    protected LabelTypeHelper labelTypeHelper;

    @Resource
    protected QueryHelper queryHelper;

    @Resource
    protected QueryFieldConfig queryFieldConfig;

        indexingHelper.setDefaultRowSize(100);
        indexingHelper.setRequestInterval(500);
        ComponentUtil.register(indexingHelper, "indexingHelper");
        ComponentUtil.register(new ThumbnailManager(), "thumbnailManager");
        final CrawlingConfigHelper crawlingConfigHelper = new CrawlingConfigHelper();
        crawlingConfigHelper.init();
        ComponentUtil.register(crawlingConfigHelper, "crawlingConfigHelper");