Dhwaneet Bhatt created LOG4J2-1185:
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Summary: Ability to change the fileName dynamically in
RollingFileAppender
Key: LOG4J2-1185
URL: https://issues.apache.org/jira/browse/LOG4J2-1185
Project: Log4j 2
Issue Type: New Feature
Components: Appenders
Affects Versions: 2.1
Reporter: Dhwaneet Bhatt
Right now RollingFileAppender rolls over the current file with fileName to the
one generated by FilePattern. However, logging always continues in the same
fileName i.e. fileName once created cannot be changed.
Property Substitution is only once during initialization, fileName is never
changed after RollingFileManager is initialized. The RollingFileManager is very
tightly tied up to the fileName attribute.
Consider that I want to name my log files like this using RollingFileAppender:
mylog-2015-10-30.log
mylog-2015-10-29.log
mylog-2015-10-28.log
There is no good way to achieve this, because even after rolling over the file,
the fileName would still remain the same, as I initialized fileName using
${date:yyyy-MM-dd}, and it would never change.
Implementing this is much easier, I just have to write a new rollover strategy
which has to create a new file based on the current file pattern. But the
RollingFileManager is so intricately tied with the fileName, that it is not
possible to change the primary file where logging is performed in any ways.
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