CacheValidator.php

<?php
 
declare(strict_types=1);
namespace Commercetools\Client;
 
use Psr\Cache\CacheItemPoolInterface;
use Psr\SimpleCache\CacheInterface;
use Symfony\Component\Cache\Adapter\FilesystemAdapter;
 
final class CacheValidator
{
    public static function validateCache($cache = null)
    {
        if ($cache instanceof CacheItemPoolInterface || $cache instanceof CacheInterface) {
            return $cache;
        }
 
        if (class_exists('Symfony\Component\Cache\Simple\FilesystemCache')) {
            $cache = new \Symfony\Component\Cache\Simple\FilesystemCache('', 0, getcwd() . "/cache");
        } else {
            $cache = new FilesystemAdapter('', 0, getcwd() . "/cache");
        }
 
        return $cache;
    }
}