*
     * @param documentExpires the expiration period: -2 (system default), -1 (never expire),
     *                       0 or positive (expire after specified days)
     * @return this CrawlJob instance for method chaining
     */
    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;
    }

    /**
     * Calculates the expiration time in milliseconds from the current time.
     *
     * @param days the number of days from now when the item should expire

        if (configId != null) {
            defaultDataMap.put(fessConfig.getIndexFieldConfigId(), configId);
        }
        //  expires
        if (documentExpires != null) {
            defaultDataMap.put(fessConfig.getIndexFieldExpires(), documentExpires);
        }
        // segment
        defaultDataMap.put(fessConfig.getIndexFieldSegment(), initParamMap.getAsString(Constants.SESSION_ID));
        // created

        crawlingInfoHelper.updateParams(sessionId, "Test Crawl", 5);

        // Verify documentExpires is set (don't check exact timing due to test environment timing issues)
        assertTrue("documentExpires should be set", crawlingInfoHelper.documentExpires > 0);
    }

    @Test
    public void test_updateParams_defaultName() {
        final String sessionId = "default-name-session";

                    final Date documentExpires = crawlingInfoHelper.getDocumentExpires(crawlingConfig);
                    if (documentExpires != null
                            && !indexingHelper.updateDocument(searchEngineClient, id, fessConfig.getIndexFieldExpires(), documentExpires)) {

    }

    // Test documentExpires setter
    @Test
    public void test_documentExpires() {
        int testExpires = 30;
        CrawlJob result = crawlJob.documentExpires(testExpires);
        assertEquals(testExpires, crawlJob.documentExpires);
        assertSame(crawlJob, result);

        // Test with negative value
        result = crawlJob.documentExpires(-1);

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

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