private static function getEvents($lastDate)
{
$events = array();
$fileReader = new FileReader($lastDate);
while (($line = $fileReader->getLine()) != null) {
if (is_a($line, "DateTime")) {
$event = new ServerStartedEvent($line);
} else {
$event = Parser::parseLine($line);
}
if ($event && Utils::getTimestamp($event->date) > Utils::getTimestamp($lastDate)) {
$events[] = $event;
}
}
return $events;
}