private function getLocale(string $locale = null) : string
{
if (null === $locale) {
if (null === $this->forcedLocale) {
return $this->requestHelper->getCurrentLocale();
} else {
return $this->forcedLocale;
}
}
return $locale;
}
/**
* {@inheritdoc}
*/
public function format($amount, $currency = null, $locale = null)
{
if (null === $currency) {
$currency = $this->requestHelper->getCurrentCurrency();
}
if (null === $locale) {
$locale = $this->requestHelper->getCurrentLocale();
}
$formatter = new \NumberFormatter($locale, \NumberFormatter::CURRENCY);
if (false === ($result = $formatter->formatCurrency($amount, $currency))) {
throw new CurrencyFormatterException($amount, $currency, $locale);
}
return $result;
}
