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1   /**
2    * Logback: the reliable, generic, fast and flexible logging framework.
3    * 
4    * Copyright (C) 1999-2006, QOS.ch
5    * 
6    * This library is free software, you can redistribute it and/or modify it under
7    * the terms of the GNU Lesser General Public License as published by the Free
8    * Software Foundation.
9    */
10  
11  package ch.qos.logback.classic.selector.servlet;
12  
13  import static ch.qos.logback.classic.ClassicGlobal.JNDI_CONTEXT_NAME;
14  
15  import javax.naming.Context;
16  import javax.naming.NamingException;
17  import javax.servlet.ServletContextEvent;
18  import javax.servlet.ServletContextListener;
19  
20  import org.slf4j.Logger;
21  import org.slf4j.impl.StaticLoggerBinder;
22  
23  import ch.qos.logback.classic.LoggerContext;
24  import ch.qos.logback.classic.selector.ContextSelector;
25  import ch.qos.logback.classic.util.JNDIUtil;
26  
27  public class ContextDetachingSCL implements ServletContextListener {
28  
29    public void contextDestroyed(ServletContextEvent servletContextEvent) {
30      String loggerContextName = null;
31      
32      try {
33        Context ctx = JNDIUtil.getInitialContext();
34        loggerContextName = (String) JNDIUtil.lookup(ctx, JNDI_CONTEXT_NAME);
35      } catch (NamingException ne) {
36      }
37      
38      if (loggerContextName != null) {
39        System.out.println("About to detach context named " + loggerContextName);
40        
41        ContextSelector selector = StaticLoggerBinder.getSingleton().getContextSelector();
42        LoggerContext context = selector.detachLoggerContext(loggerContextName);
43        if (context != null) {
44          Logger logger = context.getLogger(LoggerContext.ROOT_NAME);
45          logger.warn("Stopping logger context " + loggerContextName);
46          // when the web-app is destroyed, its logger context should be stopped
47          context.stop();
48        } else {
49          System.out.println("No context named " + loggerContextName + " was found.");
50        }
51      }
52    }
53  
54    public void contextInitialized(ServletContextEvent arg0) {
55      // do nothing
56    }
57  
58  }