void Logger::linkToDbWithOutput()

in common/logger.cpp [114:157]
37 lines of code
4 McCabe index (conditional complexity)

void Logger::linkToDbWithOutput(
        const std::string& dbName,
        const PriorityChangeNotify& prioNotify,
        const std::string& defPrio,
        const OutputChangeNotify& outputNotify,
        const std::string& defOutput)
{
    auto& logger = getInstance();

    // Initialize internal DB with observer
    logger.m_settingChangeObservers.insert(std::make_pair(dbName, std::make_pair(prioNotify, outputNotify)));

    DBConnector db("CONFIG_DB", 0);
    swss::Table table(&db, CFG_LOGGER_TABLE_NAME);
    SWSS_LOG_DEBUG("Component %s register to logger", dbName.c_str());

    std::string prio, output;
    bool doUpdate = false;
    if(!table.hget(dbName, DAEMON_LOGLEVEL, prio))
    {
        prio = defPrio;
        doUpdate = true;
    }
    if(!table.hget(dbName, DAEMON_LOGOUTPUT, output))
    {
        output = defOutput;
        doUpdate = true;
    }

    if (doUpdate)
    {
        FieldValueTuple fvLevel(DAEMON_LOGLEVEL, prio);
        FieldValueTuple fvOutput(DAEMON_LOGOUTPUT, output);
        std::vector<FieldValueTuple>fieldValues = { fvLevel, fvOutput };
        SWSS_LOG_DEBUG("Set %s loglevel to %s", dbName.c_str() , prio.c_str());
        table.set(dbName, fieldValues);
    }

    logger.m_currentPrios.set(dbName, prio);
    logger.m_currentOutputs.set(dbName, output);

    prioNotify(dbName, prio);
    outputNotify(dbName, output);
}