final String thumbnailField = fessConfig.getIndexFieldThumbnail();
            docList.stream().forEach(doc -> {
                if (!thumbnailManager.offer(doc)) {
                    if (logger.isDebugEnabled()) {
                        logger.debug("Removing {}={} from doc[{}]", thumbnailField, doc.get(thumbnailField),
                                doc.get(fessConfig.getIndexFieldUrl()));
                    }

                        removeLastDuplication(buf, symbolSize, isSpace, termCache);
                    }
                }
            } catch (final IOException e) {
                if (logger.isDebugEnabled()) {
                    logger.debug("Failed to read data.", e);
                }
                return StringUtil.EMPTY;
            }

            return buf.toString().trim();
        }

    public void add(final String name, final DataStore dataStore) {
        if (name == null || dataStore == null) {
            throw new IllegalArgumentException("name or dataStore is null.");
        }
        if (logger.isDebugEnabled()) {
            logger.debug("Loaded {}", name);
        }
        dataStoreMap.put(name.toLowerCase(Locale.ROOT), dataStore);

    public ActionResponse godHandPrologue(final ActionRuntime runtime) {
        fessLoginAssist.getSavedUserBean().ifPresent(u -> {
            final boolean result = u.getFessUser().refresh();
            if (logger.isDebugEnabled()) {
                logger.debug("refresh user info: {}", result);
            }
        });
        return viewHelper.getActionHook().godHandPrologue(runtime, super::godHandPrologue);
    }

    @Override

            }
            while ( next > 0 );
            this.createContexts = contexts.toArray(new CreateContextResponse[0]);
        }

        if ( log.isDebugEnabled() ) {
            log.debug("Opened " + this.fileName + ": " + Hexdump.toHexString(this.fileId));
        }

        return bufferIndex - start;
    }


    /**
     * @param nameBytes

                    if (logger.isInfoEnabled()) {
                        logger.info("Excluded URL from failures: {}", urlValue);
                    }
                });
            }

            if (logger.isDebugEnabled()) {
                logger.debug("Crawling {}", urlsStr);
            }

            crawler.setBackground(true);
            crawler.setThreadPriority(crawlerPriority);

                parser.setProperty(XMLConstants.ACCESS_EXTERNAL_SCHEMA, StringUtil.EMPTY);
            } catch (final Exception e) {
                if (logger.isDebugEnabled()) {
                    logger.debug("Failed to set a property.", e);
                }
            }
            // parse a content
            parser.parse(is, handler);

        SimpleDateFormat sdf = new SimpleDateFormat("MM/d/yy h:mm a");
        GregorianCalendar cal = new GregorianCalendar();

        sdf.setCalendar(cal);

        dirents = dir.listFiles();
        if ( log.isDebugEnabled() ) {
            log.debug(dirents.length + " items listed");
        }
        sorted = new LinkedList<>();
        if ( ( fmt = req.getParameter("fmt") ) == null ) {
            fmt = "col";
        }

            content = extractData.getContent();
            if (fessConfig.isCrawlerDocumentFileIgnoreEmptyContent() && StringUtil.isBlank(content)) {
                return null;
            }
            if (getLogger().isDebugEnabled()) {
                getLogger().debug("ExtractData: {}", extractData);
            }
            // meta
            extractData.getKeySet().stream().filter(k -> extractData.getValues(k) != null).forEach(key -> {

    void closeInternal ( long lastWriteTime, boolean explicit ) throws CIFSException {
        SmbTreeHandleImpl t = this.tree;
        try {
            if ( t != null && isValid() ) {
                if ( log.isDebugEnabled() ) {
                    log.debug("Closing file handle " + this);
                }

                if ( t.isSMB2() ) {
                    Smb2CloseRequest req = new Smb2CloseRequest(this.cfg, this.fileId);