Viewing file:  ExchangerExchange.php (1.38 KB) -rw-r--r--
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<?php
namespace Money\Exchange;
use Exchanger\CurrencyPair as ExchangerCurrencyPair;
use Exchanger\Contract\ExchangeRateProvider;
use Exchanger\Exception\Exception as ExchangerException;
use Exchanger\ExchangeRateQuery;
use Money\Currency;
use Money\CurrencyPair;
use Money\Exception\UnresolvableCurrencyPairException;
use Money\Exchange;
/**
* Provides a way to get exchange rate from a third-party source and return a currency pair.
*
* @author Maksim (Ellrion) Platonov <ellrion11@gmail.com>
*/
final class ExchangerExchange implements Exchange
{
/**
* @var ExchangeRateProvider
*/
private $exchanger;
/**
* @param ExchangeRateProvider $exchanger
*/
public function __construct(ExchangeRateProvider $exchanger)
{
$this->exchanger = $exchanger;
}
/**
* {@inheritdoc}
*/
public function quote(Currency $baseCurrency, Currency $counterCurrency)
{
try {
$query = new ExchangeRateQuery(
new ExchangerCurrencyPair($baseCurrency->getCode(), $counterCurrency->getCode())
);
$rate = $this->exchanger->getExchangeRate($query);
} catch (ExchangerException $e) {
throw UnresolvableCurrencyPairException::createFromCurrencies($baseCurrency, $counterCurrency);
}
return new CurrencyPair($baseCurrency, $counterCurrency, $rate->getValue());
}
}
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