/**
    * Logback: the reliable, generic, fast and flexible logging framework.
    * Copyright (C) 1999-2015, QOS.ch. All rights reserved.
    *
    * This program and the accompanying materials are dual-licensed under
    * either the terms of the Eclipse Public License v1.0 as published by
    * the Eclipse Foundation
    *
    *   or (per the licensee's choosing)
   *
   * under the terms of the GNU Lesser General Public License version 2.1
   * as published by the Free Software Foundation.
   */
  package chapters.mdc;
  
  import java.net.URL;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.slf4j.MDC;
  
  import ch.qos.logback.classic.LoggerContext;
  import ch.qos.logback.classic.encoder.PatternLayoutEncoder;
  import ch.qos.logback.classic.joran.JoranConfigurator;
  import ch.qos.logback.classic.spi.ILoggingEvent;
  import ch.qos.logback.core.ConsoleAppender;
  import ch.qos.logback.core.joran.spi.JoranException;
  import ch.qos.logback.core.util.Loader;
  import ch.qos.logback.core.util.StatusPrinter;
  
  public class SimpleMDC {
      static public void main(String[] args) throws Exception {
          // You can put values in the MDC at any time. Before anything else
          // we put the first name
          MDC.put("first", "Dorothy");
  
          // configure via the configuration file "chapters/mdc/simpleMDC.xml"
          // which ships with the examples
          configureViaXML_File();
  
          // For educational purposes, the same configuration can
          // be accomplished programmatically.
          //
          // programmaticConfiguration();
  
          Logger logger = LoggerFactory.getLogger(SimpleMDC.class);
          // We now put the last name
          MDC.put("last", "Parker");
  
          // The most beautiful two words in the English language according
          // to Dorothy Parker:
          logger.info("Check enclosed.");
          logger.debug("The most beautiful two words in English.");
  
          MDC.put("first", "Richard");
          MDC.put("last", "Nixon");
          logger.info("I am not a crook.");
          logger.info("Attributed to the former US president. 17 Nov 1973.");
      }
  
      static void programmaticConfiguration() {
          // Configure logback
          LoggerContext loggerContext = (LoggerContext) LoggerFactory.getILoggerFactory();
          loggerContext.reset();
          PatternLayoutEncoder layout = new PatternLayoutEncoder();
          layout.setContext(loggerContext);
          layout.setPattern("%X{first} %X{last} - %m%n");
          layout.start();
          ConsoleAppender<ILoggingEvent> appender = new ConsoleAppender<ILoggingEvent>();
          appender.setContext(loggerContext);
          appender.setEncoder(layout);
          appender.start();
          // cast root logger to c.q.logback.classic.Logger so that we can attach
          // an appender to it
          ch.qos.logback.classic.Logger root = (ch.qos.logback.classic.Logger) LoggerFactory.getLogger("root");
          root.addAppender(appender);
      }
  
      static void configureViaXML_File() {
          LoggerContext lc = (LoggerContext) LoggerFactory.getILoggerFactory();
          try {
              JoranConfigurator configurator = new JoranConfigurator();
              configurator.setContext(lc);
              lc.reset();
              URL url = Loader.getResourceBySelfClassLoader("chapters/mdc/simpleMDC.xml");
              configurator.doConfigure(url);
          } catch (JoranException je) {
              StatusPrinter.print(lc);
          }
      }
  
  }