RunOpenCode / exchange-rate

         */

        foreach ($rates as $rate) {

            if ($baseCurrencyCode !== $rate->getBaseCurrencyCode()) {

                $message = sprintf('Invalid base currency code "%s" of rate "%s" from source "%s" is not calculated.', $rate->getBaseCurrencyCode(), $rate->getCurrencyCode(), $rate->getSourceName());

                $this->getLogger()->critical($message);

                throw new ConfigurationException($message);

            }

        }

        return $rates;

            $key = sprintf('%s_%s_%s_%s', $rate->getCurrencyCode(), $rate->getRateType(), $rate->getSourceName(), $rate->getDate()->format('Y-m-d'));

            if (array_key_exists($key, $registry)) {

                $message = sprintf('Currency code "%s" of rate type "%s" from source "%s" valid on date "%s" is duplicated.', $rate->getCurrencyCode(), $rate->getRateType(), $rate->getSourceName(), $rate->getDate()->format('Y-m-d'));

                $this->getLogger()->critical($message);

                throw new ConfigurationException($message);

            }

            $registry[$key] = $rate->getSourceName();

        }