Matt Sicker created LOG4J2-3300:
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Summary: Add annotations for specifying conditional plugins
Key: LOG4J2-3300
URL: https://issues.apache.org/jira/browse/LOG4J2-3300
Project: Log4j 2
Issue Type: New Feature
Components: Plugins
Reporter: Matt Sicker
Inspired by how Spring Boot's auto configuration system works using its
ConditionalOnXYZ annotations, it would be great to support some similar
annotations for specifying when a plugin may be allowed to be loaded. For
example, we could have annotations for requiring presence of a particular class
(like JndiManager for JNDI-related plugins), requiring a PropertiesUtil setting
is set (as in LOG4J2-3299), etc.
This will help transition 2.x to 3.x where a lot of optional functionality will
be split into their own modules. For 2.x, the best option here would be to make
certain features opt-in rather than automatic based on the classpath.
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