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<?php
/**
* Created by PhpStorm.
* User: andy
* Date: 02.08.15
* Time: 23:33
*/
namespace JsLocalization\Caching;
use Cache;
use DateTime;
abstract class AbstractCachingService {
* The key used to cache the data.
*
* @var string
protected $cacheKey;
* The key used to cache the timestamp of the last
* refreshCache() call.
protected $cacheTimestampKey;
* @param string $cacheKey
* @param string $cacheTimestampKey
public function __construct($cacheKey, $cacheTimestampKey)
{
$this->cacheKey = $cacheKey;
$this->cacheTimestampKey = $cacheTimestampKey;
}
* Returns the timestamp of the last refreshCache() call.
* @return DateTime
public function getLastRefreshTimestamp()
$unixTime = Cache::get($this->cacheTimestampKey);
$dateTime = new DateTime;
$dateTime->setTimestamp($unixTime);
return $dateTime;
* Refresh the cached data.
* @param mixed $data
public function refreshCacheUsing($data)
Cache::forever($this->cacheKey, $data);
Cache::forever($this->cacheTimestampKey, time());
* Create up-to-date data and update cache using refreshCacheUsing().
* Trigger some event.
* @return void
abstract public function refreshCache();
* Return the cached data. Refresh cache if cache has not yet been initialized.
* @return mixed
public function getData()
if (!Cache::has($this->cacheKey)) {
$this->refreshCache();
return Cache::get($this->cacheKey);