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<?php
/**
* Matomo - free/libre analytics platform
*
* @link https://matomo.org
* @license https://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
*/
namespace Piwik\Translation\Loader;
use Matomo\Cache\Lazy;
/**
* Caches the translations loaded by another loader.
*/
class LoaderCache implements LoaderInterface
{
/**
* @var LoaderInterface
*/
private $loader;
/**
* @var Lazy
*/
private $cache;
public function __construct(LoaderInterface $loader, Lazy $cache)
{
$this->loader = $loader;
$this->cache = $cache;
}
/**
* {@inheritdoc}
*/
public function load($language, array $directories)
{
if (empty($language)) {
return array();
}
$cacheKey = $this->getCacheKey($language, $directories);
$translations = $this->cache->fetch($cacheKey);
if (empty($translations) || !is_array($translations)) {
$translations = $this->loader->load($language, $directories);
$this->cache->save($cacheKey, $translations, 43200); // ttl=12hours
}
return $translations;
}
private function getCacheKey($language, array $directories)
{
$cacheKey = 'Translations-' . $language . '-';
// in case loaded plugins change (ie Tests vs Tracker vs UI etc)
$cacheKey .= sha1(implode('', $directories));
return $cacheKey;
}
}
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