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https://issues.apache.org/jira/browse/LOG4J2-2952?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17221969#comment-17221969
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Ralph Goers commented on LOG4J2-2952:
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Log4j 2 doesn't provide a way to put conditional logic at arbitrary places in
the configuration. Instead, various components support scripting, such as the
ScriptAppenderSelector, the ScriptPatternSelector, and the ScriptFilter. We
also have a ScriptComponentBuilder that lets you create the configuration using
a scripting language, but that executes during configuration, not at runtime.
If there are other places where you would find scripting support helpful please
specify that.
> How can I do the same thing using log4j2 like what I did when using logback
> with janino?
> ----------------------------------------------------------------------------------------
>
> Key: LOG4J2-2952
> URL: https://issues.apache.org/jira/browse/LOG4J2-2952
> Project: Log4j 2
> Issue Type: Question
> Components: Appenders
> Affects Versions: 2.13.3
> Reporter: David Liu
> Priority: Major
>
> I was trying to migrate from logback to log4j2 recently. With janino in
> logback, I could do a lot of things in the logback configuration xml file in
> a programmatic way, I thought it was very convenient. I've referred to the
> documentation of log4j2, but I could not find a proper way to do the same
> thing.
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