code: private Trigger getTrigger(JobKey jobKey, Properties jobProps) {
      // Build a trigger for the job with the given cron-style schedule
      return TriggerBuilder.newTrigger()
          .withIdentity(jobProps.getProperty(ConfigurationKeys.JOB_NAME_KEY),
              Strings.nullToEmpty(jobProps.getProperty(ConfigurationKeys.JOB_GROUP_KEY)))
          .forJob(jobKey)
          .withSchedule(CronScheduleBuilder.cronSchedule(jobProps.getProperty(ConfigurationKeys.JOB_SCHEDULE_KEY)))
          .build();
    }
docs: Get a {@link org.quartz.Trigger} from the given job configuration properties.