public function getRenderedMessage() {
		if($this->renderedMessage === null and $this->message !== null) {
			if(is_string($this->message)) {
				$this->renderedMessage = $this->message;
			} else {
				$rendererMap = \n2n\log4php\Logger::getHierarchy()->getRendererMap();
				$this->renderedMessage= $rendererMap->findAndRender($this->message);
			}
		}
		return $this->renderedMessage;
	}