public function purgeCache($force = FALSE) {

		if(($path = $this->getCachePath($force))) {
			foreach(glob($path. '*') as $f) {
				if(!unlink($f)) {
					throw new FilesystemFolderException(sprintf('Cache folder %s could not be purged!', $this->path . self::CACHE_PATH));
				}
			}
		}

	}