/**
  * Creates the caching instance, setting up logging for delegating upwards
  * @param string $xmlFilePath
  * @param ValueTagProvider[] $customNamespaces
  * @param array $logFactory Callback array to call to obtain a logger instance. Will be called with a single param (class name.)
  */
 public function __construct($xmlFilePath, $customNamespaces = array(), $logFactory = array('\\MooDev\\Bounce\\Logger\\NullLogFactory', 'getLog'))
 {
     $this->_log = call_user_func($logFactory, get_class($this));
     parent::__construct($xmlFilePath, $customNamespaces);
 }