<?php declare(strict_types=1);
namespace Shopware\Core\Framework\Adapter\Cache;
use Doctrine\DBAL\Connection;
use Psr\Cache\CacheItemPoolInterface;
use Shopware\Core\DevOps\Environment\EnvironmentHelper;
use Shopware\Core\Framework\Uuid\Uuid;
use Symfony\Component\Messenger\EventListener\StopWorkerOnRestartSignalListener;
class CacheIdLoader
{
/**
* @var Connection
*/
private $connection;
/**
* @var CacheItemPoolInterface|null
*/
private $restartSignalCachePool;
public function __construct(Connection $connection, ?CacheItemPoolInterface $restartSignalCachePool = null)
{
$this->connection = $connection;
$this->restartSignalCachePool = $restartSignalCachePool;
}
public function load(): string
{
$cacheId = EnvironmentHelper::getVariable('SHOPWARE_CACHE_ID');
if ($cacheId) {
return (string) $cacheId;
}
try {
$cacheId = $this->connection->fetchColumn(
'# cache-id-loader
SELECT `value` FROM app_config WHERE `key` = :key',
['key' => 'cache-id']
);
} catch (\Exception $e) {
$cacheId = null;
}
if (\is_string($cacheId)) {
return $cacheId;
}
$cacheId = Uuid::randomHex();
try {
$this->write($cacheId);
return $cacheId;
} catch (\Exception $e) {
return 'live';
}
}
public function write(string $cacheId): void
{
$this->connection->executeUpdate(
'REPLACE INTO app_config (`key`, `value`) VALUES (:key, :cacheId)',
['cacheId' => $cacheId, 'key' => 'cache-id']
);
if ($this->restartSignalCachePool) {
$cacheItem = $this->restartSignalCachePool->getItem(StopWorkerOnRestartSignalListener::RESTART_REQUESTED_TIMESTAMP_KEY);
$cacheItem->set(microtime(true));
$this->restartSignalCachePool->save($cacheItem);
}
}
}