/**
* Build a new Tracker instance
*
* If $extraSubscribers is not empty, those subscribers will be added
* to the Tracker in addition to the defaults.
*
* @param int $numItems The total number of items (or -1 for unknown)
* @param array|EventSubscriberInterface[] $extraSubscribers Optionally specify extra listeners for this Tracker instance
* @return Tracker
*/
public function buildTracker($numItems = Tracker::UNKNOWN, array $extraSubscribers = [])
{
$tracker = new Tracker($numItems);
foreach (array_merge($this->defaultSubscribers, $extraSubscribers) as $listener) {
$tracker->getDispatcher()->addSubscriber($listener);
}
return $tracker;
}
/**
* Returns the number of items processed thus far that were skipped
*
* @return int
*/
public function getNumItemsSkip()
{
return $this->tracker->getNumProcessedItems(Tick::SKIP);
}
