}


    /**
     * Returns the authentication target.
     *
     * @return A <code>String</code> containing the authentication target.
     */
    public String getTarget () {
        return this.target;
    }


    /**
     * Sets the authentication target.
     *
     * @param target
     *            The authentication target.
     */

        this.challenge = challenge;
    }

    /**
     * Returns the authentication target.
     *
     * @return A <code>String</code> containing the authentication target.
     */
    public String getTarget() {
        return target;
    }

    /**
     * Sets the authentication target.
     *
     * @param target The authentication target.
     */
    public void setTarget(String target) {

        setupEpg(_epgMap, et -> ((ThumbnailQueue) et).getPath(), (et, vl) -> ((ThumbnailQueue) et).setPath(DfTypeUtil.toString(vl)),
                "path");
        setupEpg(_epgMap, et -> ((ThumbnailQueue) et).getTarget(), (et, vl) -> ((ThumbnailQueue) et).setTarget(DfTypeUtil.toString(vl)),
                "target");
        setupEpg(_epgMap, et -> ((ThumbnailQueue) et).getThumbnailId(),

                "scriptType");
        setupEpg(_epgMap, et -> ((JobLog) et).getStartTime(), (et, vl) -> ((JobLog) et).setStartTime(DfTypeUtil.toLong(vl)), "startTime");
        setupEpg(_epgMap, et -> ((JobLog) et).getTarget(), (et, vl) -> ((JobLog) et).setTarget(DfTypeUtil.toString(vl)), "target");
    }

    @Override
    public PropertyGateway findPropertyGateway(final String prop) {
        return doFindEpg(_epgMap, prop);
    }

        setupEpg(_epgMap, et -> ((ScheduledJob) et).getSortOrder(), (et, vl) -> ((ScheduledJob) et).setSortOrder(DfTypeUtil.toInteger(vl)),
                "sortOrder");
        setupEpg(_epgMap, et -> ((ScheduledJob) et).getTarget(), (et, vl) -> ((ScheduledJob) et).setTarget(DfTypeUtil.toString(vl)),
                "target");

            cb.query().setAvailable_Equal(Constants.T);
            cb.query().setCrawler_Equal(Constants.T);
        }, scheduledJob -> {
            if (fessConfig.isSchedulerTarget(scheduledJob.getTarget())) {
                if (scheduledJob.isRunning()) {
                    if (logger.isDebugEnabled()) {
                        logger.debug("{} is running.", scheduledJob.getId());
                    }