I wrote a logger class....
/*
* Logger.java
*
* Created on December 4, 2001, 9:50 AM
*/
package com.noi.utility.log;
import org.apache.log4j.Category;
import java.util.Calendar;
import java.util.Date;
/**
*
* @author clay
* @version
*/
public class Logger {
static private Category cat;
static private Class c;
static private Logger _instance = null;
//private Calendar cal;
/** Creates new Logger */
private Logger(Class _c) {
cat = Category.getInstance(_c.getName());
c=_c;
}
public void debug(String _s)
{
Calendar cal = Calendar.getInstance();
Date d = cal.getTime();
String debugString = "["+d.toString()+"]["+c.getName()+"]"+_s;
cat.debug(debugString);
}
/**
* @return The unique instance of this class.
*/
static public Logger instance(Class _c) {
if((null == _instance) || (_c.getName().compareTo(c.getName()) !=0)) {
_instance = new Logger(_c);
}
return _instance;
}
}
I then have a serlet singleton that starts at the init of tomcat....
/*
* InitializationServlet.java
*
* Created on November 15, 2001, 2:05 PM
*/
package com.noi.webapp.chess.servlet;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.util.*;
import org.apache.log4j.*;
import java.io.IOException;
import com.noi.utility.log.Logger;
/* Servlet Class */
// import statements...
public class InitializationServlet extends HttpServlet {
private Logger logger;
public void init() throws ServletException
{
//configure logging
//set up the layout and file appender
SimpleLayout layout = new SimpleLayout();
FileAppender appender = null;
Calendar cal = Calendar.getInstance();
Date d = cal.getTime();
int month = cal.get(Calendar.MONTH);
int day = cal.get(Calendar.DAY_OF_MONTH);
int hour = cal.get(Calendar.HOUR_OF_DAY);
int min = cal.get(Calendar.MINUTE);
int sec = cal.get(Calendar.SECOND);
String logfile =
"C:\\cygwin\\home\\clay\\logs\\chess_"+month+"_"+day+"_"+hour+"_"+min+"_"+sec+".log";
try {
appender = new FileAppender(layout,logfile);
//appender = new FileAppender(layout,logfile);
// Set up a simple configuration that logs on the console.
BasicConfigurator.configure(appender);
}
catch (IOException e)
{
System.out.println("Error creating log file:"+e);
}
logger = Logger.instance(InitializationServlet.class);
logger.debug("***********STARTING THE CHESS APPLICATION***********");
}
}
then any clas can use it and I can track who is logging when....
logger = Logger.instance(GameMgr.class);
logger.debug("in makeDate Date function:"+nDate.toString());
just my way
clay
-----Original Message-----
From: Step [SMTP:[EMAIL PROTECTED]]
Sent: Thursday, July 04, 2002 10:55 PM
To: [EMAIL PROTECTED]
Subject: how to use log4j within struts
I want to use the common-logger from Jakarta and uses log4j.
1. Does anyone have a sample log4j properties/initialization file
that they would post so that I could take a look?
2. how to set up the logger in my struts application.. for
instance my action class.
Thanks
stephen
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