Support layouts that generate XML instead of text
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Key: LOG4NET-5
URL: http://issues.apache.org/jira/browse/LOG4NET-5
Project: Log4net
Type: Improvement
Components: Core
Versions: 1.2.9
Environment: From sourceforge - 795051 - Curt Arnold
Reporter: Nicko Cadell
I recently wrote an appender to an destination that could
only accept XML documents and a custom layout that
implemented the specific schema that it accepted.
Unfortunately, only at that point did I realized that
FormatXml was protected.
I've hacked my copy to make XmlLayoutBase.FormatXml
public to allow me to acheive my objectives without adding
the complexity of serializing to a string and then trying to
fixup encoding or other issues or reparsing.
The XmlLayoutBase.Format went through a huge amount of
complexity to efficiently produce string representations from
calls to FormatXml. While that code could be retained for
compatibility with arbitary appenders, I think the following
would be beneficial.
1. Introduce an Xml specific layout interface containing
FormatXml (say IXmlLayout)
2. Have XmlLayoutBase implement IXmlLayout
3. Have the file appenders check if the layout supports
IXmlLayout, if it does then create one XmlWriter for the file
and only use IXmlLayout.FormatXml in Append.
Curt Arnold
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