[slf4j-user] slf4j logger -> Servlet container log : How to?

[Thorbjoern Ravn Andersen]

Den 11/05/10 18.32, Jacob Kjome skrev:
> In web.xml...
>
> <listener>
> <listener-class>
>         org.apache.log4j.servlet.ServletContextLogAppenderListener
> </listener-class>
> </listener>
>
> in log4j.xml...
>
> <appender name="ServletContext" 
> class="org.apache.log4j.servlet.ServletContextLogAppender">
> <param name="servletContextPath" value="/mycontext"/>
> <param name="Threshold" value="debug"/>
> <layout class="org.apache.log4j.PatternLayout">
> <param name="ConversionPattern" value="[%-5p][%-8.8t]: %39.39c %x- %m"/>
> </layout>
> </appender>
>
> Notice the conversion pattern ends with "%m" instead of "%m%n".  This 
> is because when the message goes through the servlet context logging 
> mechanism, the latter adds the newline, so adding it to the conversion 
> pattern above would result in 2 newlines, which is why we leave it out.
Ok.  So if I understand this correctly, your approach uses a servlet 
listener to register all contexts keyed by the last part of their 
context path, and you tell the appender in question which ServletContext 
to retrieve and then forward to that logger.

Will this also work with multiple web apps using slf4j, or will they go 
to the same appender?

-- 
   Thorbjørn Ravn Andersen  "...plus... Tubular Bells!"