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<?php
/**
* Copyright since 2007 PrestaShop SA and Contributors
* PrestaShop is an International Registered Trademark & Property of PrestaShop SA
*
* NOTICE OF LICENSE
*
* This source file is subject to the Open Software License (OSL 3.0)
* that is bundled with this package in the file LICENSE.md.
* It is also available through the world-wide-web at this URL:
* https://opensource.org/licenses/OSL-3.0
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@prestashop.com so we can send you a copy immediately.
*
* DISCLAIMER
*
* Do not edit or add to this file if you wish to upgrade PrestaShop to newer
* versions in the future. If you wish to customize PrestaShop for your
* needs please refer to https://devdocs.prestashop.com/ for more information.
*
* @author PrestaShop SA and Contributors <contact@prestashop.com>
* @copyright Since 2007 PrestaShop SA and Contributors
* @license https://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
*/
namespace PrestaShop\PrestaShop\Core\Localization\Currency\DataLayer;
use PrestaShop\PrestaShop\Core\Data\Layer\AbstractDataLayer;
use PrestaShop\PrestaShop\Core\Data\Layer\DataLayerException;
use PrestaShop\PrestaShop\Core\Localization\Currency\CurrencyData as CurrencyData;
use PrestaShop\PrestaShop\Core\Localization\Currency\CurrencyDataLayerInterface as CurrencyDataLayerInterface;
use PrestaShop\PrestaShop\Core\Localization\Currency\LocalizedCurrencyId;
use PrestaShop\PrestaShop\Core\Localization\Exception\LocalizationException;
use Symfony\Component\Cache\Adapter\AdapterInterface;
/**
* Localization/CurrencyCache data layer.
*
* This currency data layer reads and writes Localization/CurrencyData from a cache adapter
*/
class CurrencyCache extends AbstractDataLayer implements CurrencyDataLayerInterface
{
/**
* Symfony Cache component adapter.
*
* Provides cached CurrencyData objects
* Implements PSR-6: Cache Interface (@see http://www.php-fig.org/psr/psr-6/)
*
* @var AdapterInterface
*/
private $cache;
public function __construct(AdapterInterface $cache)
{
$this->cache = $cache;
}
/**
* {@inheritdoc}
*/
public function setLowerLayer(CurrencyDataLayerInterface $lowerLayer)
{
$this->lowerDataLayer = $lowerLayer;
return $this;
}
/**
* Actually read a CurrencyData object into the current layer.
*
* Might be a file access, cache read, DB select...
*
* @param LocalizedCurrencyId $id The CurrencyData object identifier (currency code + locale code)
*
* @return CurrencyData|null The wanted CurrencyData object (null if not found)
*
* @throws LocalizationException When $currencyDataId is invalid
*/
protected function doRead($id)
{
if (!$id instanceof LocalizedCurrencyId) {
throw new LocalizationException('$currencyDataId must be a CurrencyDataIdentifier object');
}
$cacheItem = $this->cache->getItem((string) $id);
return $cacheItem->isHit()
? $cacheItem->get()
: null;
}
/**
* Actually write a CurrencyData object into the current layer.
*
* Might be a file edit, cache update, DB insert/update...
*
* @param LocalizedCurrencyId $currencyDataId The data object identifier
* @param CurrencyData $currencyData The data object to be written
*
* @throws DataLayerException When write fails
* @throws LocalizationException When $currencyDataId is invalid
*/
protected function doWrite($currencyDataId, $currencyData)
{
if (!$currencyDataId instanceof LocalizedCurrencyId) {
throw new LocalizationException('$currencyDataId must be a CurrencyDataIdentifier object');
}
$cacheItem = $this->cache->getItem((string) $currencyDataId);
$cacheItem->set($currencyData);
$saved = $this->cache->save($cacheItem);
if (!$saved) {
throw new DataLayerException('Unable to persist data in cache data layer');
}
}
}
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