FixedExchange.php
| 1 | <?php |
| 2 | |
| 3 | namespace Money\Exchange; |
| 4 | |
| 5 | use Money\Currency; |
| 6 | use Money\CurrencyPair; |
| 7 | use Money\Exception\UnresolvableCurrencyPairException; |
| 8 | use Money\Exchange; |
| 9 | |
| 10 | /** |
| 11 | * Provides a way to get exchange rate from a static list (array). |
| 12 | * |
| 13 | * @author Frederik Bosch <f.bosch@genkgo.nl> |
| 14 | */ |
| 15 | final class FixedExchange implements Exchange |
| 16 | { |
| 17 | /** |
| 18 | * @var array |
| 19 | */ |
| 20 | private $list; |
| 21 | |
| 22 | /** |
| 23 | * @param array $list |
| 24 | */ |
| 25 | public function __construct(array $list) |
| 26 | { |
| 27 | $this->list = $list; |
| 28 | } |
| 29 | |
| 30 | /** |
| 31 | * {@inheritdoc} |
| 32 | */ |
| 33 | public function quote(Currency $baseCurrency, Currency $counterCurrency) |
| 34 | { |
| 35 | if (isset($this->list[$baseCurrency->getCode()][$counterCurrency->getCode()])) { |
| 36 | return new CurrencyPair( |
| 37 | $baseCurrency, |
| 38 | $counterCurrency, |
| 39 | $this->list[$baseCurrency->getCode()][$counterCurrency->getCode()] |
| 40 | ); |
| 41 | } |
| 42 | |
| 43 | throw UnresolvableCurrencyPairException::createFromCurrencies($baseCurrency, $counterCurrency); |
| 44 | } |
| 45 | } |
| 46 |