[logback-user] file appender

17 Mar 2008

      Hi

I am new to Tomcat & logback
I'm using tomcat 5.5.25

I try to use a file appender
my conf is :

<configuration>

   <appender name="STDOUT"
     class="ch.qos.logback.core.ConsoleAppender">
     <layout class="ch.qos.logback.classic.PatternLayout">
       <Pattern>%d{HH:mm:ss} %X{host} %-5level %logger - %msg%n</ 
Pattern>
     </layout>
   </appender>

   <appender name="FILE" class="ch.qos.logback.core.FileAppender">
     <File>testFile.log</File>
     <Append>true</Append>
     <Encoding>UTF-8</Encoding>
     <BufferedIO>false</BufferedIO>
     <ImmediateFlush>true</ImmediateFlush>		
     <layout class="ch.qos.logback.classic.PatternLayout">
       <Pattern>%-4relative [%thread] %-5level %logger{35} - %msg%n</ 
Pattern>
     </layout>
   </appender>

   <logger name="milan">
      <level value="INFO" />
   </logger>
   <root>
     <level value="debug" />
     <appender-ref ref="STDOUT" />
     <appender-ref ref="FILE" />
   </root>
</configuration>

the statusprinter confirm that the configuration has been taken into  
account :

|-INFO in ch.qos.logback.classic.BasicConfigurator@6f7a6e - Setting up  
default configuration.
|-INFO in ch.qos.logback.classic.joran.action.ConfigurationAction -  
Ignoring debug attribute.
|-INFO in ch.qos.logback.core.joran.action.AppenderAction - About to  
instantiate appender of type [ch.qos.logback.core.ConsoleAppender]
|-INFO in ch.qos.logback.core.joran.action.AppenderAction - Naming  
appender as [STDOUT]
|-INFO in ch.qos.logback.core.joran.action.AppenderAction - Popping  
appender named [STDOUT] from the object stack
|-INFO in ch.qos.logback.core.joran.action.AppenderAction - About to  
instantiate appender of type [ch.qos.logback.core.FileAppender]
|-INFO in ch.qos.logback.core.joran.action.AppenderAction - Naming  
appender as [FILE]
|-INFO in ch.qos.logback.core.joran.action.AppenderAction - Popping  
appender named [FILE] from the object stack
|-INFO in ch.qos.logback.classic.joran.action.LevelAction - milan  
level set to INFO
|-INFO in ch.qos.logback.classic.joran.action.LevelAction - root level  
set to DEBUG
|-INFO in ch.qos.logback.core.joran.action.AppenderRefAction -  
Attaching appender named [STDOUT] to Logger[root]
|-INFO in ch.qos.logback.core.joran.action.AppenderRefAction -  
Attaching appender named [FILE] to Logger[root]

but no testFile.log is written

moreover, I use the code :

		// logback
		String chemin = getServletContext().getRealPath("/"); ;
		String file = chemin + "logback.xml";
	    LoggerContext lc = (LoggerContext)  
LoggerFactory.getILoggerFactory();

	    try {
	        JoranConfigurator configurator = new JoranConfigurator();
	        configurator.setContext(lc);
	        lc.shutdownAndReset();
	        configurator.doConfigure(file);

	      } catch (JoranException je) {
	    	  StatusPrinter.print(lc);
	      } finally {
	    	  StatusPrinter.print(lc);
	      }

		MDC.put("host", "");
		logger = LoggerFactory.getLogger(this.getClass());

         ch.qos.logback.classic.Logger log1 =  
lc.getLogger(this.getClass());
	    //logger.debug (log1.getName());
	    System.out.println (log1.getName());
	    ch.qos.logback.core.Appender app1 = log1.getAppender("STDOUT");
	    if (app1 !=null) {
	    	ch.qos.logback.core.Layout lay1 = app1.getLayout();
	    	logger.debug(lay1.getContentType());
	    }

I can retreive the name of my logger but I cannot retrieve the  
Appender object
why ?

thanks

[logback-user] file appender

David Brocard