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https://issues.apache.org/jira/browse/LOG4J2-155?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Scott Deboy updated LOG4J2-155:
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Summary: add getFormat to Layout (was: Re-add getContentType, add
getFormat to Layout)
> add getFormat to Layout
> -----------------------
>
> Key: LOG4J2-155
> URL: https://issues.apache.org/jira/browse/LOG4J2-155
> Project: Log4j 2
> Issue Type: Improvement
> Reporter: Scott Deboy
>
> The different Layout implementations don't expose the contentType previously
> available in log4j. HTMLLayout has a 'dead' contentType field, but that's it.
> It would be useful to expose the content type (text/plain, text/html,
> text/xml) along with a information about the format.
> If the content type is text/plain, exposing the layout format as a conversion
> pattern would work fine.
> If the content type is text/html or text/xml we could expose something else
> (or null).
> My primary interest is adding the ability to 'discover' the file-based
> logging configurations in order to support them via Chainsaw and multicast
> DNS.
> If all Layouts supporting text/plain content types exposed their format as a
> conversion pattern, and the file-based appenders (optionally) provided the
> ability to advertise their configuration, the files could be remotely tailed
> without the far endpoint even knowing anything about the file configuration.
> For an example, see how multicast appenders are exposed via
> zeroconf/multicast dns in log4j 1.x in activateOptions - something very
> similar could be done with contenttype and format properties in a
> fileappender with a layout.
> if (advertiseViaMulticastDNS) {
> Map properties = new HashMap();
> properties.put("multicastAddress", remoteHost);
> zeroConf = new ZeroConfSupport(ZONE, port, getName(), properties);
> zeroConf.advertise();
> }
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