Is there a way to get, what class call a Particular Observer?

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Hi there,

is there a way to get, what class call a Particular Observer?

I have this Observer,

public function execute(
\Magento\Framework\Event\Observer $observer
) {
$customer = $observer->getEvent()->getData();
$eventName = $observer->getEvent()->getName();
$name= $customer->getFirstname();
$lastname = $customer->getLastName();
$now = date(‘Y-m-d H:i:s’);
$this->logger->info($now.'CUSTOMER_SAVE_BEFORE____________’);
$this->logger->info("Event Name: ".$eventName);
$this->logger->info('Name: ', $name);
$this->logger->info('Lastname: ', $lastname);
$this->logger->info($now.’______________________________________________________________’);

}

I need to LOG, What class Call this Observer, I have a issue on a Magento 2 Project. sometimes FirstName and Last Name of Logged customers are set to NULL.

Thanks
Leonardo