I wonder if we could write a "MainArgumentsLookup" that finds the main thread and walks up the stack to the public static main(String[]) main methods and gets the arguments from the stack...
Gary On Wed, Aug 6, 2014 at 6:54 PM, Ralph Goers <ralph.go...@dslextreme.com> wrote: > Well…. > > You would really be passing the name of the file to the Appender, not a > Logger. Loggers only reference Appenders so you can’t really configure > them with Appender configuration data. That said, Log4j 2 provides a few > ways you could do this: > 1. Set a system property and reference it via ${sys:propertyName} in the > configuration. The manual has examples of this. > 2. Create a custom Lookup Plugin and then register the file name with the > Lookup. Then reference it from the configuration as ${myLookup: key} > where myLookup is the name of your custom Lookup and key is the name that > represents the file name value. > 3. Create a custom Configuration the extends XMLConfiguration or > JSONConfiguration. Pass the file name to that class and have it add that as > a property to the properties Map in the configuration. The XML could then > just reference it as ${propertyName}. > > Ralph > > On Aug 6, 2014, at 2:03 PM, Arwen Pond <ap...@book.com> wrote: > > > My application takes a parameter where the user can specify the log > file. I'd like to pass this parameter to the Logger which uses a > FileAppender. I am not sure how to do this in log4j 2. > > > > Thanks, > > Arwen > > > > > > This electronic mail message contains information that (a) is or > > may be CONFIDENTIAL, PROPRIETARY IN NATURE, OR OTHERWISE > > PROTECTED > > BY LAW FROM DISCLOSURE, and (b) is intended only for the use of > > the addressee(s) named herein. If you are not an intended > > recipient, please contact the sender immediately and take the > > steps necessary to delete the message completely from your > > computer system. > > > > Not Intended as a Substitute for a Writing: Notwithstanding the > > Uniform Electronic Transaction Act or any other law of similar > > effect, absent an express statement to the contrary, this e-mail > > message, its contents, and any attachments hereto are not > > intended > > to represent an offer or acceptance to enter into a contract and > > are not otherwise intended to bind this sender, > > barnesandnoble.com > > llc, barnesandnoble.com inc. or any other person or entity. > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: log4j-user-unsubscr...@logging.apache.org > For additional commands, e-mail: log4j-user-h...@logging.apache.org > > -- E-Mail: garydgreg...@gmail.com | ggreg...@apache.org Java Persistence with Hibernate, Second Edition <http://www.manning.com/bauer3/> JUnit in Action, Second Edition <http://www.manning.com/tahchiev/> Spring Batch in Action <http://www.manning.com/templier/> Blog: http://garygregory.wordpress.com Home: http://garygregory.com/ Tweet! http://twitter.com/GaryGregory