private function createAppenderLayout(LoggerAppender $appender, $config) {
		$name = $appender->getName();
		$class = $config['class'];
		if (empty($class)) {
			$this->warn("Layout class not specified for appender [$name]. Reverting to default layout.");
			return;
		}
		if (!class_exists($class)) {
			$this->warn("Nonexistant layout class [$class] specified for appender [$name]. Reverting to default layout.");
			return;
		}
		
		$layout = new $class();
		if (!($layout instanceof LoggerLayout)) {
			$this->warn("Invalid layout class [$class] sepcified for appender [$name]. Reverting to default layout.");
			return;
		}
		
		if (isset($config['params'])) {
			$this->setOptions($layout, $config['params']);
		}
		
		$layout->activateOptions();
		$appender->setLayout($layout);
	}