/**
* Load cache metadata from storage
*
* @return void
*/
protected function _loadMetadata()
{
if ($this->_metaData === null) {
$cacheMetadata = $this->_adapter->load($this->getRequestCacheId() . self::METADATA_CACHE_SUFFIX);
if ($cacheMetadata) {
$cacheMetadata = unserialize($cacheMetadata);
}
$this->_metaData = empty($cacheMetadata) || !is_array($cacheMetadata) ? array() : $cacheMetadata;
}
}
/**
* Retrive cache instance
*
* @return Mage_Core_Model_Cache
*/
public static function getCacheInstance()
{
if (is_null(self::$_cache)) {
$options = Mage::app()->getConfig()->getNode('global/smile_magecache/backend_options');
if ($options) {
$options = $options->asArray();
if (!empty($options['cache_dir'])) {
$options['cache_dir'] = Mage::getBaseDir('var') . DS . $options['cache_dir'];
Mage::app()->getConfig()->getOptions()->createDirIfNotExists($options['cache_dir']);
}
self::$_cache = Mage::getModel('core/cache', $options);
} else {
self::$_cache = Mage::app()->getCacheInstance();
}
}
return self::$_cache;
}
