/**
* Logback: the reliable, generic, fast and flexible logging framework.
*
* Copyright (C) 1999-2006, QOS.ch
*
* This library is free software, you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation.
*/
package chapter7;
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.PatternLayout;
import ch.qos.logback.classic.joran.JoranConfigurator;
import ch.qos.logback.classic.spi.LoggingEvent;
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 "chapter7/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.shutdownAndReset();
PatternLayout layout = new PatternLayout();
layout.setContext(loggerContext);
layout.setPattern("%X{first} %X{last} - %m%n");
layout.start();
ConsoleAppender<LoggingEvent> appender = new ConsoleAppender<LoggingEvent>();
appender.setContext(loggerContext);
appender.setLayout(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.shutdownAndReset();
URL url = Loader.getResourceBySelfClassLoader("chapter7/simpleMDC.xml");
configurator.doConfigure(url);
} catch (JoranException je) {
StatusPrinter.print(lc);
}
}
}