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From "Curt Arnold (JIRA)" <j...@apache.org>
Subject [jira] Created: (LOG4J2-13) Appenders, layouts, etc should support deferred processing
Date Thu, 19 Jun 2008 21:59:45 GMT
Appenders, layouts, etc should support deferred processing

                 Key: LOG4J2-13
                 URL: https://issues.apache.org/jira/browse/LOG4J2-13
             Project: Log4j 2
          Issue Type: Wish
            Reporter: Curt Arnold

Appenders, Layouts and the like that interact with LoggingEvent should support deferred processing.

This can be accomplished by having a distinct extract() method where the object constructs
a value object containing the info needed for later processing from the LoggingEvent and other
context (such as current thread, stack trace).  At some later time, this value object may
be rendered to complete the layout etc.  This approach eliminates the need to preemptively
collect information such as stack trace that may not be used or to clone the LoggingEvent
to isolate the layout or appender from external changes.

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