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<?php
namespace PrestaShop\CircuitBreaker\Storage;
use PrestaShop\CircuitBreaker\Contract\StorageInterface;
use PrestaShop\CircuitBreaker\Contract\TransactionInterface;
use PrestaShop\CircuitBreaker\Exception\TransactionNotFoundException;
use Psr\SimpleCache\CacheInterface;
/**
* Implementation of Storage using the Symfony Cache Component.
*/
final class SymfonyCache implements StorageInterface
{
/**
* @var CacheInterface the Symfony Cache
*/
private $symfonyCache;
public function __construct(CacheInterface $symfonyCache)
{
$this->symfonyCache = $symfonyCache;
}
/**
* {@inheritdoc}
*/
public function saveTransaction($service, TransactionInterface $transaction)
{
$key = $this->getKey($service);
return $this->symfonyCache->set($key, $transaction);
}
/**
* {@inheritdoc}
*/
public function getTransaction($service)
{
$key = $this->getKey($service);
if ($this->hasTransaction($service)) {
return $this->symfonyCache->get($key);
}
throw new TransactionNotFoundException();
}
/**
* {@inheritdoc}
*/
public function hasTransaction($service)
{
$key = $this->getKey($service);
return $this->symfonyCache->has($key);
}
/**
* {@inheritdoc}
*/
public function clear()
{
return $this->symfonyCache->clear();
}
/**
* Helper method to properly store the transaction.
*
* @param string $service the service URI
*
* @return string the transaction unique identifier
*/
private function getKey($service)
{
return md5($service);
}
}