Jeff Thomas created LOG4J2-3693:
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Summary: XmlConfiguration keeps relevant fields private without
providing protected accessors making subclassing difficult
Key: LOG4J2-3693
URL: https://issues.apache.org/jira/browse/LOG4J2-3693
Project: Log4j 2
Issue Type: Improvement
Components: API, Configuration
Affects Versions: 2.24.0
Reporter: Jeff Thomas
The XmlConfiguration implementation is non-final meaning it is possible to
subclass it to provide additional custom functionality; however: the mostt
relevant class field `rootElement` is _private_ making it near impossible to do
anything useful in the subclass.
It would be helpful (and prevent making a complete copy of the implementation)
to at the very least provide a protected accessor for this field:
i.e. `protected Element getRootElement()`
This way, a custom subclass has a chance to perform some custom handling in
`public void setup()` before the hierarchy is constructed.
Most of the AbstractConfiguration configuration-relevant fields are protected
(i.e. rootNode) - but it seems someone didn't stick to that approach in the
XmlConfiguration implementation.
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