This is a problem. Log4j supports Lookups, which usually eliminate the need to override things like setFile since you can create a custom lookup to do whatever needs to be done.
Is there any chance you can post the code so we can figure out what it does? Ralph > On Aug 15, 2022, at 8:21 AM, Joel Griffith <jgrif...@nd.edu> wrote: > > I don't know what the old appender does, in part because I'm not a good > enough programmer to interpret it, and in part because the bulk of what it > does is contained in the source code of the classes that it subclasses, and > I don't have that v1 source code. > > One thing I've figured out that it does is override the v1 FileAppender's > setFile() method. I've also figured out that the v2 FileAppender doesn't > have that method. So... I don't know what to do about that. > > Joel > > On Fri, Aug 12, 2022 at 7:18 PM Gary Gregory <garydgreg...@gmail.com> wrote: > >> Joel, >> >> Is it possible to use Log4j 2's much richer feature set as is? Perhaps you >> could explain what is it your old appender does that requires custom code. >> >> Gary >> >> On Fri, Aug 12, 2022, 15:35 Joel Griffith <jgrif...@nd.edu> wrote: >> >>> I have a Java application containing a package written to use Log4j v1. >> I >>> am struggling to update this package to use Log4j v2 to remediate its >>> security vulnerabilities. >>> >>> The package contains a custom Appender that subclasses Log4j v1's >>> FileAppender. I am stumped at how to convert this file to Log4j v2. In >>> Log4j v2, the FileAppender class is 'final' and cannot be subclassed, so >> I >>> cannot create a new version of the custom Appender that mirrors the >> first. >>> More importantly, perhaps, is that the Log4j v2 FileAppender is a Plugin >>> and completely different in structure from the Log4j v1 FileAppender. >>> >>> I found this page that ostensibly explains how to extend Log4j: >>> https://logging.apache.org/log4j/2.x/manual/extending.html#Appenders >>> but it contains no information about actually extending Appenders or >>> procedures for accomplishing an equivalent goal. >>> >>> Is there any reasonable way of converting this custom Appender from Log4j >>> v1 to v2? >>> >>> Thanks, >>> Joel >>> >> --------------------------------------------------------------------- To unsubscribe, e-mail: log4j-user-unsubscr...@logging.apache.org For additional commands, e-mail: log4j-user-h...@logging.apache.org
