this is my wrapper class for Log4J:
package com.uniserv.comn.logger;
import org.apache.log4j.*;
import java.util.*;
import java.io.*;
public class Logger
{
private static boolean isInstantiated;
private static Logger logger = null;
private Category posTxtFileLog;
private Category bosTxtFileLog;
private Category bosJdbcLog;
/** class constants **/
public static final int DEBUG = 0;
public static final int INFO = 1;
public static final int WARN = 2;
public static final int ERROR = 3;
public static final int FATAL = 4;
private Logger()
{
posTxtFileLog = Category.getInstance( Logger.class.getName() + ".
POSTXTLOG" );
bosTxtFileLog = Category.getInstance( Logger.class.getName() + ".
BOSTXTLOG" );
bosJdbcLog = Category.getInstance( Logger.class.getName() + ".
BOSJDBCLOG" );
Properties props = new Properties();
try
{
System.out.println("getting log4j.properties" );
props.load(new BufferedInputStream(this.getClass().
getResourceAsStream("log4j.properties")));
PropertyConfigurator.configure(props);
}
catch (IOException ioe)
{
ioe.printStackTrace();
}
}
public static Logger getInstance()
{
if ( logger == null )
{
logger = new Logger();
}
return logger;
}
public void logPOS( int iLevel, String message )
{
switch(iLevel)
{
case DEBUG:
posTxtFileLog.debug(message);
break;
case INFO:
posTxtFileLog.info(message);
break;
case WARN:
posTxtFileLog.warn(message);
break;
case ERROR:
posTxtFileLog.error(message);
break;
case FATAL:
posTxtFileLog.fatal(message);
break;
}
}
public void logBOS( int iLevel, String message )
{
switch(iLevel)
{
case DEBUG:
bosTxtFileLog.debug(message);
bosJdbcLog.debug(message);
break;
case INFO:
bosTxtFileLog.info(message);
bosJdbcLog.info(message);
break;
case WARN:
bosTxtFileLog.warn(message);
bosJdbcLog.warn(message);
break;
case ERROR:
bosTxtFileLog.error(message);
bosJdbcLog.error(message);
break;
case FATAL:
bosTxtFileLog.fatal(message);
bosJdbcLog.fatal(message);
break;
}
}
}
this is my log4j.properties
#root category
log4j.rootCategory=DEBUG, Appender2
log4j.category.Logger.POSTXTLOG=DEBUG, Appender2
log4j.category.Logger.BOSTXTLOG=DEBUG, Appender3
log4j.category.Logger.BOSJDBCLOG=DEBUG, Appender4
# Appender1
log4j.appender.Appender1=org.apache.log4j.ConsoleAppender
log4j.appender.Appender1.layout=org.apache.log4j.PatternLayout
log4j.appender.Appender1.layout.ConversionPattern=%d [%t] %-5p %m%n
# Appender2
log4j.appender.Appender2=org.apache.log4j.FileAppender
log4j.appender.Appender2.layout=org.apache.log4j.PatternLayout
log4j.appender.Appender2.layout.ConversionPattern=%d [%t] %-5p %m%n
log4j.appender.Appender2.File=F:\postxtlog.txt
# Appender3
log4j.appender.Appender3=org.apache.log4j.FileAppender
log4j.appender.Appender3.layout=org.apache.log4j.PatternLayout
log4j.appender.Appender3.layout.ConversionPattern=%d [%t] %-5p %m%n
log4j.appender.Appender3.File=F:\MyDocuments\LOG 4J Docu\Test Codes\bostxtlog.
txt
# Appender4
log4j.appender.Appender4=org.apache.log4j.jdbc.JDBCAppender
log4j.appender.Appender4.URL=jdbc:postgresql://localhost:5432/testdb
log4j.appender.Appender4.user=pau
log4j.appender.Appender4.password=pau
log4j.appender.Appender4.sql=INSERT INTO JDBCTEST (Message) VALUES ('%d - %c -
%p - %m')
the ejb that uses my logging class:
public class TimeKeepingSessionEJB implements SessionBean {
SessionContext ctx = null;
EntityServices entityServices = new EntityServices();
LocalTimeKeeping timeKeeping = null;
LocalTimeKeepingHome timeKeepingHome = null;
Logger logger = Logger.getInstance();
/**
* Default constructor
*/
public TimeKeepingSessionEJB() {
}
public void ejbRemove() {}
public void ejbPassivate () {}
public void ejbActivate() {}
/** A method requirement of session bean.*/
public void ejbCreate() throws CreateException {
try{
System.out.println("Inside ejbcreate:");
System.out.println("LOGGER OBJECT: " + logger );
logger.logPOS(Logger.DEBUG, "Inside ejbcreate() of
TimeKeepingSessionEJB" );
ServiceLocator serviceLocator = ServiceLocator.getInstance();
timeKeepingHome = (LocalTimeKeepingHome)
serviceLocator.getLocalHome(entityServices.TIME_KEEPING);
} catch (Exception e) {
// logger.logPOS(Logger.ERROR, "Exception @ ejbcreate(): " + e.
getMessage() );
e.printStackTrace();
}
}
/** A method requirement of session bean.*/
public void setSessionContext(SessionContext oSessionContext) {
this.ctx = oSessionContext;
}
/*********************for testing only*******************************/
public void getTimeKeeping() throws Exception {
try {
Context context = new InitialContext();
Object objRef = context.lookup("java:comp/env/ejb/TimeKeepingEJB");
timeKeepingHome = (LocalTimeKeepingHome)
PortableRemoteObject.narrow(objRef, LocalTimeKeepingHome.class);
}
catch (Exception e) {
System.out.println("Error TimeKeepingSessionEJB");
e.printStackTrace();
}
}
/*********************end of for testing only*******************************/
/**
* addTimeKeeping(TimeKeepingVO timeKeepingVO)
* @ param
* TimeKeepingVO timeKeepingVO - Value Object for TimeKeeping.
*/
public TimeKeepingVO addTimeKeeping(TimeKeepingVO timeKeepingVO) throws
AddException {
try {
// getTimeKeeping();
logger.logPOS(Logger.DEBUG, "addTimeKeeping: creating instance" );
timeKeepingHome.create(timeKeepingVO);
return timeKeepingVO;
} catch (Exception e) {
e.printStackTrace();
throw new AddException(e.getMessage());
}
}
How do i configure Log4j inside JBoss? i find it weird that after JBoss deploys
my application and when i run it the logging at the console stops. Instead, the
JBoss logging continues inside F:\postxtlog.txt (defined as the file appender#
2 above ) and the comments i put inside my own methods ( e.g. logger.
logPOS(Logger.DEBUG, "Inside ejbcreate() of TimeKeepingSessionEJB" ) ) were not
reflected inside the said file.
************************************
Paulo A. Bengero
Application Systems Engineer
Team ORION
************************************
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