public static function init()
{
$cacheFileName = dirname(__FILE__) . '/../tmp/cache/localize';
if (file_exists($cacheFileName)) {
$file = fopen($cacheFileName, 'r');
$data = fread($file, filesize($cacheFileName));
fclose($file);
self::$localizationMap = unserialize($data);
} else {
if (self::$localizationMap === NULL) {
self::$localizationMap = array();
foreach (self::$dirs as $dir) {
self::readDir($dir);
}
$file = fopen($cacheFileName, 'w');
fwrite($file, serialize(self::$localizationMap));
fclose($file);
}
}
}
