[
https://issues.apache.org/jira/browse/LOG4J2-3534?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Piotr Karwasz resolved LOG4J2-3534.
-----------------------------------
Resolution: Fixed
> LevelRangeFilterBuilder loses compatibility with log4j1.
> --------------------------------------------------------
>
> Key: LOG4J2-3534
> URL: https://issues.apache.org/jira/browse/LOG4J2-3534
> Project: Log4j 2
> Issue Type: Bug
> Components: Log4j 1.2 bridge
> Reporter: Yohei Ueki
> Priority: Major
> Fix For: 2.18.0
>
>
> [LevelRangeFilterBuilder|https://github.com/apache/logging-log4j2/blob/rel/2.17.2/log4j-1.2-api/src/main/java/org/apache/log4j/builders/filter/LevelRangeFilterBuilder.java]
> enables us to use log4j2's LevelRangeFilter with log4j1's configuration file.
>
> The class
> - has obvious bug here:
> https://github.com/apache/logging-log4j2/blob/rel/2.17.2/log4j-1.2-api/src/main/java/org/apache/log4j/builders/filter/LevelRangeFilterBuilder.java#L65
> - log4j1's and log4j2's LogLevel orders are inversed (LOG4J2-2315), so we
> also need to fix here
> https://github.com/apache/logging-log4j2/blob/rel/2.17.2/log4j-1.2-api/src/main/java/org/apache/log4j/builders/filter/LevelRangeFilterBuilder.java#L97-L98
>
> - lost compatibility with log4j1 here:
> https://github.com/apache/logging-log4j2/blob/rel/2.17.2/log4j-1.2-api/src/main/java/org/apache/log4j/builders/filter/LevelRangeFilterBuilder.java#L85-L86
> I investigated log4j1's behavior:
> https://github.com/yueki1993/logging-log4j1/commits/level-range-filter-test
>
> I fixed the class, added UTs and am ready to submit PR:
> https://github.com/yueki1993/logging-log4j2/commits/fix-level-range-filter-builder
--
This message was sent by Atlassian Jira
(v8.20.7#820007)
