CacheSlider.php
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<?php
namespace Nextend\SmartSlider3\Slider\Cache;
use Nextend\Framework\Cache\Manifest;
use Nextend\Framework\Platform\Platform;
use Nextend\Framework\Plugin;
use Nextend\SmartSlider3\Application\Helper\HelperSliderChanged;
use Nextend\SmartSlider3\Application\Model\ModelGenerator;
use Nextend\SmartSlider3\SmartSlider3Info;
class CacheSlider extends Manifest {
private $parameters = array();
protected $_storageEngine = 'database';
private $isExtended = false;
public function __construct($cacheId, $parameters = array()) {
parent::__construct($cacheId, false);
$this->parameters = $parameters;
}
protected function decode($data) {
return json_decode($data, true);
}
/**
* @param $fileName
* @param $hash
* @param callback $callable
*
* @return bool
*/
public function makeCache($fileName, $hash, $callable) {
$variations = 1;
if ($this->exists($this->getManifestKey('variations'))) {
$variations = intval($this->get($this->getManifestKey('variations')));
}
$fileName = $fileName . mt_rand(1, $variations);
if ($this->exists($this->getManifestKey('data'))) {
$data = json_decode($this->get($this->getManifestKey('data')), true);
$fileName = $this->extendFileName($fileName, $data);
} else {
$this->clearCurrentGroup();
}
$output = parent::makeCache($fileName, $hash, $callable);
return $output;
}
protected function createCacheFile($fileName, $hash, $content) {
$this->set($this->getManifestKey('data'), json_encode($this->parameters['slider']->manifestData));
$fileName = $this->extendFileName($fileName, $this->parameters['slider']->manifestData);
return parent::createCacheFile($fileName, $hash, $content);
}
private function extendFileName($fileName, $manifestData) {
if ($this->isExtended) {
return $fileName;
}
$this->isExtended = true;
$generators = $manifestData['generator'];
if (count($generators)) {
$generatorModel = new ModelGenerator($this->parameters['slider']);
foreach ($generators as $generator) {
list($group, $type, $params) = $generator;
$generatorGroup = $generatorModel->getGeneratorGroup($group);
if (!$generatorGroup) {
echo n2_('Slider error! Generator group not found: ' . $group);
} else {
$generatorSource = $generatorGroup->getSource($type);
if (!$generatorSource) {
echo n2_('Slider error! Generator source not found: ' . $type);
} else {
$fileName .= call_user_func(array(
$generatorSource,
'cacheKey'
), $params);
}
}
}
}
return $fileName;
}
protected function isCacheValid(&$manifestData) {
if (!isset($manifestData['version']) || $manifestData['version'] != SmartSlider3Info::$version) {
return false;
}
$helper = new HelperSliderChanged($this->parameters['slider']);
if ($helper->isSliderChanged($this->parameters['slider']->sliderId)) {
$this->clearCurrentGroup();
$helper->setSliderChanged($this->parameters['slider']->sliderId, 0);
return false;
}
$time = Platform::getTimestamp();
if ($manifestData['nextCacheRefresh'] < $time) {
return false;
}
if (!isset($manifestData['currentPath']) || $manifestData['currentPath'] != md5(__FILE__)) {
return false;
}
return true;
}
protected function addManifestData(&$manifestData) {
$manifestData['nextCacheRefresh'] = Plugin::applyFilters('SSNextCacheRefresh', $this->parameters['slider']->getNextCacheRefresh(), array($this->parameters['slider']));
$manifestData['currentPath'] = md5(__FILE__);
$manifestData['version'] = SmartSlider3Info::$version;
$variations = 1;
$params = $this->parameters['slider']->params;
if (!$params->get('randomize-cache', 0) && ($params->get('randomize', 0) || $params->get('randomizeFirst', 0))) {
$variations = intval($params->get('variations', 5));
if ($variations < 1) {
$variations = 1;
}
}
$this->set($this->getManifestKey('variations'), $variations);
}
}