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1   /**
2    * Logback: the reliable, generic, fast and flexible logging framework.
3    * Copyright (C) 1999-2011, QOS.ch. All rights reserved.
4    *
5    * This program and the accompanying materials are dual-licensed under
6    * either the terms of the Eclipse Public License v1.0 as published by
7    * the Eclipse Foundation
8    *
9    *   or (per the licensee's choosing)
10   *
11   * under the terms of the GNU Lesser General Public License version 2.1
12   * as published by the Free Software Foundation.
13   */
14  package chapters.filters;
15  
16  import org.slf4j.Logger;
17  import org.slf4j.LoggerFactory;
18  import org.slf4j.MDC;
19  
20  import ch.qos.logback.classic.LoggerContext;
21  import ch.qos.logback.classic.joran.JoranConfigurator;
22  import ch.qos.logback.core.joran.spi.JoranException;
23  import ch.qos.logback.core.util.StatusPrinter;
24  
25  public class GoMDC {
26  
27    public static void main(String[] args)  {
28      Logger logger = LoggerFactory
29          .getLogger(GoMDC.class);
30      LoggerContext lc = (LoggerContext) LoggerFactory.getILoggerFactory();
31  
32      try {
33        JoranConfigurator configurator = new JoranConfigurator();
34        configurator.setContext(lc);
35        lc.reset();
36        configurator.doConfigure("mdcFilter.xml");
37        
38      } catch (JoranException je) {
39        StatusPrinter.print(lc);
40      }
41  
42      logger.debug("I know me " + 0);
43      MDC.put("key", "val");
44      logger.debug("I know me " + 1);
45      
46      StatusPrinter.print(lc);
47    }
48  }