/**
* Parse a Microcron (seconds digit + CRON ) expression
*
* @param string $expression Microcron expression (e.g. '8 * * * * *')
* @param \AppserverIo\Psr\EnterpriseBeans\ScheduleExpression $scheduleExpression The schedule expression with the data to create the instance with
* @param \AppserverIo\Microcron\FieldFactory $fieldFactory Factory to create cron fields
*/
public function __construct($expression, ScheduleExpression $scheduleExpression, FieldFactory $fieldFactory = null)
{
// call parent constructor
parent::__construct($expression, $fieldFactory);
// set the schedule expression instance
$this->scheduleExpression = $scheduleExpression;
}
/**
* Start's the CRON scanner and executes the jobs configured in the systems
* etc/appserver/conf.d/cron.xml and in the applications META-INF/cron.xml files.
*
* @return void
* @see \AppserverIo\Appserver\Core\AbstractThread::main()
*/
public function main()
{
// log the configured deployment directory
$this->getSystemLogger()->info('Now start CRON scanner');
// load the validated and merged CRON jobs
/** \AppserverIo\Appserver\Core\Api\Node\CronNodeInterface $cronNode */
$cronNodes = $this->newService('AppserverIo\\Appserver\\Core\\Api\\ScannerService')->findAll();
// execute all the registered CRON jobs
while (true) {
// execute each of the jobs found in the configuration file
/** @var \AppserverIo\Appserver\Core\Api\Node\CronNodeInterface $cronNode */
foreach ($cronNodes as $cronNode) {
// execute each of the jobs found in the configuration file
/** @var \AppserverIo\Appserver\Core\Api\Node\JobNodeInterface $jobNode */
foreach ($cronNode->getJobs() as $jobNode) {
// load the scheduled expression from the job definition
$schedule = $jobNode->getSchedule()->getNodeValue()->__toString();
// query whether the job has to be scheduled or not
if (CronExpression::factory($schedule)->isDue()) {
$this->getCronJob($jobNode);
}
}
}
// sleep for the configured interval
sleep($this->getInterval());
}
}