void DOMConfigurator::parseLevel()

in src/main/cpp/domconfigurator.cpp [731:807]
69 lines of code
11 McCabe index (conditional complexity)

void DOMConfigurator::parseLevel(
	LOG4CXX_NS::helpers::Pool& p,
	LOG4CXX_NS::helpers::CharsetDecoderPtr& utf8Decoder,
	apr_xml_elem* element, LoggerPtr logger, bool isRoot)
{
	LogString loggerName = logger->getName();

	if (isRoot)
	{
		loggerName = LOG4CXX_STR("root");
	}

	LogString levelStr(subst(getAttribute(utf8Decoder, element, VALUE_ATTR)));
	if (LogLog::isDebugEnabled())
	{
		LogLog::debug(LOG4CXX_STR("Level value for ") + loggerName + LOG4CXX_STR(" is [") + levelStr + LOG4CXX_STR("]."));
	}

	if (StringHelper::equalsIgnoreCase(levelStr, LOG4CXX_STR("INHERITED"), LOG4CXX_STR("inherited"))
		|| StringHelper::equalsIgnoreCase(levelStr, LOG4CXX_STR("NULL"), LOG4CXX_STR("null")))
	{
		if (isRoot)
		{
			LogLog::error(LOG4CXX_STR("Root level cannot be inherited. Ignoring directive."));
		}
		else
		{
			logger->setLevel(0);
		}
	}
	else
	{
		LogString className(subst(getAttribute(utf8Decoder, element, CLASS_ATTR)));

		if (className.empty())
		{
			logger->setLevel(OptionConverter::toLevel(levelStr, Level::getDebug()));
		}
		else
		{
			if (LogLog::isDebugEnabled())
			{
				LogLog::debug(LOG4CXX_STR("Desired Level sub-class: [") + className + LOG4CXX_STR("]"));
			}

			try
			{
				Level::LevelClass& levelClass =
					(Level::LevelClass&)Loader::loadClass(className);
				LevelPtr level = levelClass.toLevel(levelStr);
				logger->setLevel(level);
			}
			catch (Exception& oops)
			{
				LogLog::error(
					LOG4CXX_STR("Could not create level [") + levelStr +
					LOG4CXX_STR("]. Reported error follows."),
					oops);

				return;
			}
			catch (...)
			{
				LogLog::error(
					LOG4CXX_STR("Could not create level [") + levelStr);

				return;
			}
		}
	}

	if (LogLog::isDebugEnabled())
	{
		LogLog::debug(loggerName + LOG4CXX_STR(" level set to ") +
			logger->getEffectiveLevel()->toString());
	}
}