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<?php |
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|
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namespace Money\Currencies; |
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|
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use Cache\Taggable\TaggableItemInterface; |
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use Money\Currencies; |
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use Money\Currency; |
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use Psr\Cache\CacheItemPoolInterface; |
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|
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/** |
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* Cache the result of currency checking. |
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* |
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* @author Márk Sági-Kazár <[email protected]> |
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*/ |
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final class CachedCurrencies implements Currencies |
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{ |
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/** |
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* @var Currencies |
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*/ |
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private $currencies; |
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|
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/** |
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* @var CacheItemPoolInterface |
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*/ |
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private $pool; |
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|
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public function __construct(Currencies $currencies, CacheItemPoolInterface $pool) |
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{ |
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$this->currencies = $currencies; |
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$this->pool = $pool; |
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} |
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|
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/** |
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* {@inheritdoc} |
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*/ |
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public function contains(Currency $currency) |
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{ |
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$item = $this->pool->getItem('currency|availability|'.$currency->getCode()); |
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|
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if (false === $item->isHit()) { |
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$item->set($this->currencies->contains($currency)); |
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|
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if ($item instanceof TaggableItemInterface) { |
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$item->addTag('currency.availability'); |
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} |
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|
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$this->pool->save($item); |
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} |
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|
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return $item->get(); |
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} |
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|
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/** |
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* {@inheritdoc} |
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*/ |
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public function subunitFor(Currency $currency) |
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{ |
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$item = $this->pool->getItem('currency|subunit|'.$currency->getCode()); |
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|
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if (false === $item->isHit()) { |
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$item->set($this->currencies->subunitFor($currency)); |
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|
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if ($item instanceof TaggableItemInterface) { |
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$item->addTag('currency.subunit'); |
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} |
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|
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$this->pool->save($item); |
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} |
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|
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return $item->get(); |
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} |
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|
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/** |
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* {@inheritdoc} |
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*/ |
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#[\ReturnTypeWillChange] |
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public function getIterator() |
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{ |
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return new \CallbackFilterIterator( |
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$this->currencies->getIterator(), |
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function (Currency $currency) { |
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$item = $this->pool->getItem('currency|availability|'.$currency->getCode()); |
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$item->set(true); |
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|
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if ($item instanceof TaggableItemInterface) { |
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$item->addTag('currency.availability'); |
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} |
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|
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$this->pool->save($item); |
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|
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return true; |
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} |
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); |
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} |
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} |
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|
