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https://issues.apache.org/jira/browse/LOG4J2-3350?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17478816#comment-17478816
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Gary D. Gregory commented on LOG4J2-3350:
-----------------------------------------
Oops, I linked the wrong issue.
> Routing appender does not expand nested variables
> -------------------------------------------------
>
> Key: LOG4J2-3350
> URL: https://issues.apache.org/jira/browse/LOG4J2-3350
> Project: Log4j 2
> Issue Type: Bug
> Components: Appenders
> Affects Versions: 2.17.1
> Reporter: Stefano Maioli
> Priority: Minor
> Fix For: 2.17.2
>
>
> Routing appender does not expand anymore nested variables.
> Using the configuration below, Log4J version 2.14.0 create correctly the file
> {*}C:\tmp\test.log{*}, but from Log4J version 2.17.0 the property expansion
> doesn't work anymore and a wrong file *${drive}${path}${name}* is written in
> the current working directory.
>
>
> {code:java}
> <Properties>
> <Property name="pcode">def</Property>
> <Property name="drive">C:</Property>
> <Property name="path">/tmp/</Property>
> <Property name="name">test.log</Property>
> <Property name="filename">${drive}${path}${name}</Property>
> <Property name="filepattern">${filename}.%i.backup</Property>
> </Properties>
> <Appenders>
> <Routing name="Routing">
> <Routes pattern="$${map:pcode}">
> <Route>
> <RollingFile name="Rolling" fileName="${filename}"
> filePattern="${filepattern}">
> <PatternLayout>
> <pattern>%map{data}%n</pattern>
> </PatternLayout>
> <SizeBasedTriggeringPolicy size="500" />
> </RollingFile>
> </Route>
> </Routes>
> </Routing>
> </Appenders>
> {code}
>
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