Tolerance\Tracer\SpanFactory\Amqp\AmqpSpanFactory::getIdentifier PHP Method

getIdentifier() private method

private getIdentifier ( PhpAmqpLib\Message\AMQPMessage $message, string $header ) : null | Identifier
$message PhpAmqpLib\Message\AMQPMessage
$header string
return null | Tolerance\Tracer\Span\Identifier
    private function getIdentifier(AMQPMessage $message, $header)
    {
        if (null !== ($header = $this->getMessageHeader($message, $header))) {
            return Identifier::fromString($header);
        }
        return null;
    }