Any particular reason for not using a configuration file?
On Wed, Nov 30, 2016 at 5:31 AM, Tarun Sharma <[email protected]>
wrote:
> Hi,
>
>
>
> While upgrading from 1.2.17 to 2.5, I have come across a major
> difference. Please see following code snippets.
>
>
>
> Log4j1.2.17
>
> private static final Logger LOGGER = Logger.getLogger(TestLog.class);
>
> public static void main(String args[])
> {
> Properties p = new Properties();
> p.setProperty("log4j.debug","true");
> p.setProperty("log4j.rootLogger","info,cfg");
> p.setProperty("log4j.appender.cfg","org.apache.log4j.
> ConsoleAppender");
> p.setProperty("log4j.appender.cfg.layout","org.apache.log4j.
> PatternLayout");
> PropertyConfigurator.configure(p);
> LOGGER.info("INFO"); //logs on console
> LOGGER.warn("warn"); //logs on console
> LOGGER.error("error"); //logs on console
> }
>
>
>
> Log4j2 v2.5
>
>
>
> private static final Logger LOGGER = LogManager.getLogger(TestLog.class);
>
> public static void main(String[] args)
> {
> PropertiesConfigurationFactory factory = new
> PropertiesConfigurationFactory(); // This line and the try catch below
> replace the
> Properties cfg = new Properties();
> cfg.setProperty("name", "config");
> cfg.setProperty("status", "debug");
> cfg.setProperty("appenders","console");
> cfg.setProperty("appender.console.type","Console");
> cfg.setProperty("appender.console.name","Console");
> cfg.setProperty("appender.console.layout.type","PatternLayout");
> cfg.setProperty("rootLogger.level","info");
> cfg.setProperty("rootLogger.appenderRefs","console");
> cfg.setProperty("rootLogger.appenderRef.console.ref","Console");
> try {
> ConfigurationSource configSrc = createConfigurationSource(cfg);
> //PropertyConfigurator.configure(cfg); from log4j1.2
>
> Configuration conf = factory.getConfiguration(configSrc);
> System.setProperty("Log4jContextSelector",
> "org.apache.logging.log4j.core.selector.BasicContextSelector");
> LoggerContext ctx = Configurator.initialize(conf);
> ContextAnchor.THREAD_CONTEXT.set(ctx);
> }
> catch (IOException io)
> {
>
> }
>
> LOGGER.info("INFO"); // does not print
> LOGGER.warn("warn"); // does not print
> LOGGER.error("error"); //prints to console
> }
>
> private static ConfigurationSource createConfigurationSource(Properties
> cfg) throws IOException {
>
> ByteArrayOutputStream out = new ByteArrayOutputStream();
> cfg.store(out, null);
> InputStream in = new ByteArrayInputStream(out.toByteArray());
> return new ConfigurationSource(in);
> }
> }
>
>
>
>
>
> So, In log4j2 , the Logger which is initialized as private static final,
> is not aware of the configurations, but in logj1.x, It is.
>
>
>
> Is there any way to make log4j2 code behave as log4j1.x did?
>
>
>
> Best Regards,
>
> Tarun
>
--
[image: MagineTV]
*Mikael Ståldal*
Senior software developer
*Magine TV*
[email protected]
Grev Turegatan 3 | 114 46 Stockholm, Sweden | www.magine.com
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