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1   /**
2    * Logback: the reliable, generic, fast and flexible logging framework.
3    * Copyright (C) 1999-2015, 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.getLogger(GoMDC.class);
29          LoggerContext lc = (LoggerContext) LoggerFactory.getILoggerFactory();
30  
31          try {
32              JoranConfigurator configurator = new JoranConfigurator();
33              configurator.setContext(lc);
34              lc.reset();
35              configurator.doConfigure("mdcFilter.xml");
36  
37          } catch (JoranException je) {
38              StatusPrinter.print(lc);
39          }
40  
41          logger.debug("I know me " + 0);
42          MDC.put("key", "val");
43          logger.debug("I know me " + 1);
44  
45          StatusPrinter.print(lc);
46      }
47  }