Log4j 1.x to Log4j 2.1.1 migration issue

Question

I'm trying migrate code to version 2. But, I'm running into some issues with finding an alternative to getCurrentLoggers in log4j 2.1.1

import org.apache.logging.log4j.LogManager.getCurrentLoggers(); does not exist.

    private ArrayList<LoggerName> getLoggerList() {

    // Generate a list of all the loggers and levels
    ArrayList<String> al = new ArrayList<String>();
    HashMap<Object, Object> hm = new HashMap<Object, Object>();
    ArrayList<LoggerName> list = new ArrayList<LoggerName>();

    // Get RootLogger
    Logger rootLogger = LogManager.getRootLogger();
    String rootLoggerName = rootLogger.getName();
    al.add(rootLoggerName);
    hm.put(rootLoggerName, rootLogger);

    // All Other Loggers ISSUE HERE

    Enumeration e = LogManager.getCurrentLoggers();

    while (e.hasMoreElements()) {               
        Logger t1Logger = (Logger) e.nextElement();
        String loggerName = t1Logger.getName();
        al.add(loggerName);
        hm.put(loggerName, t1Logger);       
    }

    String[] alLoggerStr = ((String[]) al.toArray(new String[0]));
    Arrays.sort(alLoggerStr);
    for (int i=0; i < alLoggerStr.length; i++) { 
        Logger logger = (Logger) hm.get(alLoggerStr[i]);

        String name = logger.getName();
        String level = logger.getLevel().toString();
        String parent = GenFuncs.EMPTY_STRING;
        if (logger.getParent() != null) {
            parent = (logger.getParent().getName();
        }
        LoggerName logData = new LoggerNameImpl(name, parent, level);

        list.add(logData);
    }
    return list;
}

score 1 · Accepted Answer · answered Aug 30 '18 at 13:06

Found answer from Stack Overflow

File configFile = new File("c:\\my_path\\log4j2.xml");
LoggerContext loggerContext = Configurator.initialize("my_config", null, configFile.toURI());
Configuration configuration = loggerContext.getConfiguration();
Collection<LoggerConfig> loggerConfigs = configuration.getLoggers().values();

Log4j 1.x to Log4j 2.1.1 migration issue

1 Answers1