void RollingFileAppender::activateOptions()

in src/main/cpp/rollingfileappender.cpp [178:261]
65 lines of code
10 McCabe index (conditional complexity)

void RollingFileAppender::activateOptions(Pool& p)
{
	if (!_priv->rollingPolicy)
	{
		LogLog::warn(LOG4CXX_STR("No rolling policy configured for the appender named [")
			+ _priv->name + LOG4CXX_STR("]."));
		auto fwrp = std::make_shared<FixedWindowRollingPolicy>();
		fwrp->setFileNamePattern(getFile() + LOG4CXX_STR(".%i"));
		_priv->rollingPolicy = fwrp;
	}

	//
	//  if no explicit triggering policy and rolling policy is both.
	//
	if (!_priv->triggeringPolicy)
	{
		TriggeringPolicyPtr trig = LOG4CXX_NS::cast<TriggeringPolicy>(_priv->rollingPolicy);

		if (trig != NULL)
		{
			_priv->triggeringPolicy = trig;
		}
	}

	if (!_priv->triggeringPolicy)
	{
		LogLog::warn(LOG4CXX_STR("No triggering policy configured for the appender named [")
			+ _priv->name + LOG4CXX_STR("]."));
		_priv->triggeringPolicy = std::make_shared<SizeBasedTriggeringPolicy>();
	}

	{
		std::lock_guard<std::recursive_mutex> lock(_priv->mutex);
		_priv->triggeringPolicy->activateOptions(p);
		_priv->rollingPolicy->activateOptions(p);

		try
		{
			RolloverDescriptionPtr rollover1 =
				_priv->rollingPolicy->initialize(getFile(), getAppend(), p);

			if (rollover1 != NULL)
			{
				ActionPtr syncAction(rollover1->getSynchronous());

				if (syncAction != NULL)
				{
					syncAction->execute(p);
				}

				_priv->fileName = rollover1->getActiveFileName();
				_priv->fileAppend = rollover1->getAppend();

				//
				//  async action not yet implemented
				//
				ActionPtr asyncAction(rollover1->getAsynchronous());

				if (asyncAction != NULL)
				{
					asyncAction->execute(p);
				}
			}

			File activeFile;
			activeFile.setPath(getFile());

			if (getAppend())
			{
				_priv->fileLength = activeFile.length(p);
			}
			else
			{
				_priv->fileLength = 0;
			}

			FileAppender::activateOptionsInternal(p);
		}
		catch (std::exception& ex)
		{
			LogLog::warn(LOG4CXX_STR("Exception activating RollingFileAppender ") + getName(), ex);
		}
	}
}