*   -d, --dataConfigIds ids       : Comma-separated data config IDs
 *   -p, --properties path         : Properties file path
 *   -e, --expires days            : Expires for documents (in days)
 *   -h, --hotThread interval      : Interval for hot thread logging
 * </pre>
 */
public class Crawler {

    /**
     * Creates a new instance of Crawler.
     */

    /** Default purge day value (-1 indicates no purging). */
    public static final String DEFAULT_PURGE_DAY = "-1";

    /** Default suggest purge day value (30 days). */
    public static final String DEFAULT_SUGGEST_PURGE_DAY = "30";

    /** Default list of bot user agents to purge from logs. */
    public static final String DEFAULT_PURGE_BY_BOTS =

        assertNotNull(heartbeatInterval);
        assertEquals(10000, heartbeatInterval.intValue());

        // Test integer conversion for cleanup days
        int cleanupDays = fessConfig.getDayForCleanup();
        // cleanupDays is primitive int, not Integer
        assertEquals(3, cleanupDays);

        // Test integer conversion for crawler processes

labels.urls=URLs
labels.userAgent=User Agent
labels.username=Username
labels.value=Value
labels.versionNo=Version No
labels.cronExpression=Schedule
labels.dayForCleanup=Delete documents older than specified days
labels.crawlingThreadCount=Concurrent Crawling Count
labels.boost=Boost
labels.crawlingConfigName=Name
labels.crawlingConfigPath=Path to Crawl
labels.processType=Process Type
labels.parameters=Parameters

    /** The key of the message: Schedule */
    public static final String LABELS_CRON_EXPRESSION = "{labels.cronExpression}";

    /** The key of the message: Delete documents older than specified days */
    public static final String LABELS_DAY_FOR_CLEANUP = "{labels.dayForCleanup}";

    /** The key of the message: Concurrent Crawling Count */