@Override
    public void start() {
        try {
            // add listener
            scheduler.getListenerManager().addSchedulerListener(new QuartzSchedulerListener(this));
            scheduler.start();
            LOGGER.info("Quartz scheduler engine started, inlong manager host {}, port {}, secretId {}",
                    host, port, username);
        } catch (SchedulerException e) {
            throw new QuartzScheduleException("Failed to start quartz scheduler ", e);
        }
    }
The default implementation of schedule engine based on Quartz scheduler. Response for processing
the register/unregister/update requests from {@link QuartzScheduleClient}
inlong-manager/manager-schedule/src/main/java/org/apache/inlong/manager/schedule/quartz/QuartzScheduleEngine.java