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From "Ralph Goers (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (LOG4J2-494) Support composite configurations
Date Sun, 24 Apr 2016 06:36:13 GMT

    [ https://issues.apache.org/jira/browse/LOG4J2-494?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15255512#comment-15255512

Ralph Goers commented on LOG4J2-494:

Based on your patch and the comments I made above I have committed a new version to the LOG4J2-494
branch. I still need to create a unit test to verify that reconfiguration works properly.
 Please review the code on the branch in the meantime.

> Support composite configurations
> --------------------------------
>                 Key: LOG4J2-494
>                 URL: https://issues.apache.org/jira/browse/LOG4J2-494
>             Project: Log4j 2
>          Issue Type: New Feature
>          Components: Configurators
>    Affects Versions: 2.0-beta9
>            Reporter: Ralph Goers
>            Assignee: Ralph Goers
> Support was added to XMLConfiguration to allow XIncludes in the XML files. While this
can be useful it does not allow for the use case where someone wants a default configuration
and then a custom configuration to be merged with it.
> I am proposing creating a CompositeConfiguration class that accepts a comma separated
list of configuration files. It would then use the Configuration factories to create the appropriate
Configuration classes for each of the underlying files.  It would then merge the Node hierarchies
created by each into a single tree and then finally construct the actual configuration Objects
from that tree.
> There are a few issues with this - for example each configuration can specify debug and
verbose attributes, duplicate property settings, handling duplicate Appender names, etc. 
Most of these should be fairly easy to resolve.

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