Specify Log Folder path dynamically

[Dubois, Fabien]

Hi everybody,

 

I have a problem:

 

I develop a web application, I want to create my log files in a Folder
in the context like this: $CATALINA_HOME/webapps/mywebapp/ $LOG_FOLDER.

 

I use my own FileAppender to create a log file every day which contains
the date in the name file. It is working! 

 

I have tried to use the same behaviour to specify the folder but it's
not working! I give you the code, maybe someone can find an error

 

My log4j.properties

******************

log4j.rootLogger=INFO, file

log4j.appender.file=com.capgemini.gestion.GestionLogging

log4j.appender.file.layout=org.apache.log4j.PatternLayout

log4j.appender.file.layout.ConversionPattern=%d{dd/MM/yyyy HH:mm} %5p
[%t] (%F\:%L) - %m%n

#Before :

#log4j.appender.file.File=/tomcat/webapps/appWicket-1.0/logs/appWicket_%
date%.log

#Now :

log4j.appender.file.File=%path%/appWicket_%date%.log

log4j.appender.file.append=false

******************

 

Part of my FileAppender classe

******************

            public void setFile(String strFile) {

                        String strDate;

                        SimpleDateFormat sdf;

                        

                        // for the folder, create the link for the path

                        String real_path = ((WebApplication)
WebApplication.get()).getServletContext().getRealPath("/");

                        String name_log =
GestionProperties.getProperty("logRealdir");

                        String path_log = real_path+name_log;

                        Folder folder_log = new Folder(path_log);

                        if (!folder_log.exists())

                                   folder_log.mkdir();

// replace %path% to path_log

                        strFile  = strFile.replaceAll("%path%",
path_log);            

 

                         if (datePattern!=null && strFile!=null) {    

                                    sdf = new
SimpleDateFormat(datePattern);

                                    strDate = sdf.format(new Date());

                                    fileName = [B]path_log +[/B]
strFile.replaceAll("%date%", strDate);

                        } else {

                                     System.err.println("Either File or
DatePattern options are not set for appender [" + name + "].");

                        }

            }

 

            public String getDatePattern() {

                        return datePattern;

            }

 

            public void setDatePattern(String datePattern) {

                        this.datePattern = datePattern;

            }

******************

 

If I remove the code include for the path folder, as said above, it's
working. But I have to specify manually the path folder, which could
change when machine server changes. 

 

So how can I specify dynamically the log folder path? 

 

Thank you in advance,