protected String[] dataConfigIds;

    protected int documentExpires = -2;

    protected int hotThreadInterval = -1;

    public CrawlJob namespace(final String namespace) {
        this.namespace = namespace;
        return this;
    }

    public CrawlJob documentExpires(final int documentExpires) {
        this.documentExpires = documentExpires;
        return this;
    }

                final long now = ComponentUtil.getSystemHelper().getCurrentTimeAsLong();
                return new Date(now + timeToLive.longValue() * 1000 * 60);
            }
        }
        return documentExpires != null ? new Date(documentExpires) : null;
    }

    protected long getExpiredTime(final int days) {
        final long now = ComponentUtil.getSystemHelper().getCurrentTimeAsLong();

        if (configId != null) {
            putResultDataBody(dataMap, fessConfig.getIndexFieldConfigId(), configId);
        }
        //  expires
        if (documentExpires != null) {
            putResultDataBody(dataMap, fessConfig.getIndexFieldExpires(), documentExpires);
        }
        // segment
        putResultDataBody(dataMap, fessConfig.getIndexFieldSegment(), sessionId);
        // content

                    final Date documentExpires = crawlingInfoHelper.getDocumentExpires(crawlingConfig);
                    if (documentExpires != null
                            && !indexingHelper.updateDocument(searchEngineClient, id, fessConfig.getIndexFieldExpires(), documentExpires)) {
                        logger.debug("Failed to update {} at {}", fessConfig.getIndexFieldExpires(), url);

        if (configId != null) {
            putResultDataBody(dataMap, fessConfig.getIndexFieldConfigId(), configId);
        }
        //  expires
        if (documentExpires != null) {
            putResultDataBody(dataMap, fessConfig.getIndexFieldExpires(), documentExpires);
        }
        // lang
        final String lang = systemHelper.normalizeHtmlLang(