DailyRollingFileAppender - roll at scheduled time instead of when record written

[David Sanders]

With DailyRollingFileAppender, how do I cause files to be rolled over on the configurable interval instead of waiting for the first log write attempt after the interval expires?

http://jakarta.apache.org/log4j/docs/api/org/apache/log4j/DailyRollingFileAppender.html said:

> DailyRollingFileAppender extends FileAppender so that the underlying file is rolled over at a user chosen frequency.
>For example, if the File option is set to /foo/bar.log and the DatePattern set to '.'yyyy-MM-dd, on 2001-02-16 at midnight, the logging file >/foo/ bar.log will be copied to /foo/bar.log.2001-02-16 and logging for 2001-02-17 will continue in /foo/bar.log until it rolls over the next day.

The file won't be rolled on 2001-02-16 at midnight unless a message is logged at midnight. Instead, the file will be rolled when the first log message is written after midnight. In my application, that "first message" could be several hours after midnight. Yet, I need the log file closed (and preferably renamed) at midnight so the log can be processed by another program.






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