I would like to create an appender that logs only for a particular level AND only for a particular logger. From what I'm seeing, and based on this tutorial, the filters are ORed together. How can I AND the log4net filters together? Here's an example of what I'm doing:
<appender name="MyAppender">
<!--log only INFO level-->
<filter type="log4net.Filter.LevelMatchFilter">
<levelToMatch value="INFO" />
</filter>
<!--log only UserController logger-->
<filter type="log4net.Filter.LoggerMatchFilter">
<loggerToMatch value="MyLogger" />
</filter>
<!-- do not log anything else -->
<filter type="log4net.Filter.DenyAllFilter" />
</appender>
You can write a custom AndFilter, which is fairly easy. You can use the code posted here - https://stackoverflow.com/a/8859037/984438
Usage will be like:
<filter type="Namespace.AndFilter, Assembly">
<!--log only INFO level-->
<filter type="log4net.Filter.LevelMatchFilter">
<levelToMatch value="INFO" />
</filter>
<!--log only UserController logger-->
<filter type="log4net.Filter.LoggerMatchFilter">
<loggerToMatch value="MyLogger" />
</filter>
<acceptOnMatch value="true"/>
</filter>
<!-- do not log anything else -->
<filter type="log4net.Filter.DenyAllFilter" />