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From "Scott Deboy (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (LOG4J2-155) add getFormat to Layout
Date Fri, 18 Jan 2013 02:18:17 GMT

     [ https://issues.apache.org/jira/browse/LOG4J2-155?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Scott Deboy updated LOG4J2-155:

    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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