adding date to Java util logger fileHandler name

Question

Hi I currently have this in my .properties file:

java.util.logging.FileHandler.pattern = %h/programName%u%g.log

I would also like to append a timestamp / username to this so its easy to identify log files does anyone know how?

score 3 · Accepted Answer · answered Dec 07 '09 at 16:43

3

Since the FileHandler methods don't have a % substitution variable for date, my suggestion would be to format a string that includes the date before passing the string to FileHandler. Something like:

String pattern = String.format("%%h/programName%tYmd%%u%%g.log", today);
FileHandler fh = new FileHandler(pattern);

answered Dec 07 '09 at 16:43

shoover

3,071
1
29
40

Ah, I missed the properties file part. That will require a little more thinking. – shoover Dec 07 '09 at 18:07
Do you have access to programmatically write to the .properties file on program startup? And is this a program that executes and quits, or something that stays loaded (possibly overnight)? – shoover Dec 07 '09 at 18:07

adding date to Java util logger fileHandler name

1 Answers1