Dmitriy Neretin created LOG4J2-1589:
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Summary: Value nesting during property substitution
Key: LOG4J2-1589
URL: https://issues.apache.org/jira/browse/LOG4J2-1589
Project: Log4j 2
Issue Type: Wish
Components: Configurators
Affects Versions: 2.5
Reporter: Dmitriy Neretin
Priority: Minor
There is already a good description what "default value nesting" is:
http://logback.qos.ch/manual/configuration.html (use your browser search
function)
It is partially implemented in the log4j but it can still be improved.
Example from that page above: "${id:-${userid}}" If the ${id} variable is not
set, ${userid} will be used.
At the moment it works only if the default value is a concrete value:
${path:-/only/concrete/path/can/be/used/here}
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