Provide a Layout Pattern that is re-evaluated on each use
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Key: LOG4NET-316
URL: https://issues.apache.org/jira/browse/LOG4NET-316
Project: Log4net
Issue Type: Improvement
Components: Other
Affects Versions: 1.2.11
Reporter: Roy Chastain
Priority: Minor
The DynamicPatternLayout is a layout pattern that is re-evaluated on each use.
It is appropriate to use instead of LayoutPattern to provide dynamic strings in
headers and footers for appenders. Datetime is an example. Using the standard
layout pattern results in the same datetime in each header and footer, while
using DynamicPatternLayout results in timestamp of the header/footer creation.
Example
<layout type="log4net.Layout.DynamicPatternLayout">
<param name="Header" value="%newline**** Trace Opened Local:
%date{yyyy-MM-dd HH:mm:ss.fff} UTC: %utcdate{yyyy-MM-dd HH:mm:ss.fff}
****%newline"/>
<param name="Footer" value="**** Trace Closed %date{yyyy-MM-dd HH:mm:ss.fff}
****%newline"/>
</layout>
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