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https://issues.apache.org/jira/browse/LOG4J2-631?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13994458#comment-13994458
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Alexandre Gattiker commented on LOG4J2-631:
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[~jvz], could we key by both name and MessageFactory?
My use case is that I have a code base that uses the standard MessageFactory,
but I would like to introduce one logging statement that can benefit from
FormatterLogger. It is very impractical to have a mix of various log formatters
over a code base, so my idea was to use the a different name for an additional,
'non-standard' logger.
If this limitation is to remain, I think it is only practical to use the
formatter logger exclusively and uniformly over a code base. But then, as it is
vastly superior to the standard formatter, why not advertise it as the
recommended usage in Log4j2? It is no more difficult to write %s than {}.
[~garydgregory], I agree it would make sense to document this limitation where
getFormatterLogger is introduced in
http://logging.apache.org/log4j/2.x/manual/api.html
> Cannot use formatter logger and standard logger with same name
> --------------------------------------------------------------
>
> Key: LOG4J2-631
> URL: https://issues.apache.org/jira/browse/LOG4J2-631
> Project: Log4j 2
> Issue Type: Bug
> Affects Versions: 2.0-rc1
> Reporter: Alexandre Gattiker
>
> {code}
> public class Example {
> private final static Logger FORMATTER_LOGGER =
> LogManager.getFormatterLogger(Example.class);
> private final static Logger LOGGER =
> LogManager.getLogger(Example.class);
> public static void main(String[] args) {
> LOGGER.log(ERROR, "{} happened", "Something");
> FORMATTER_LOGGER.log(ERROR, "%s happened", "Something");
> }
> }
> {code}
> {noformat}
> 13:40:35.401 [main] ERROR com.example.Example - {} happened
> 13:40:35.404 [main] ERROR com.example.Example - Something happened
> {noformat}
> After inverting the two constant declarations:
> {noformat}
> 13:41:13.730 [main] ERROR com.example.Example - Something happened
> 13:41:13.732 [main] ERROR com.example.Example - %s happened
> {noformat}
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