If I see a syntax like ${prefix:key} I could think of having a map of "map providers". The source of such a map could be a file, system properties, environment variables, database, ldap, ...
Haven't looked at commons-configuration. But maybe also have a look at Apache Deltaspike which supports configurtion values via a "Datasource". And Tamaya will also have one, I think ... Jan > -----Ursprüngliche Nachricht----- > Von: Ralph Goers [mailto:ralph.go...@dslextreme.com] > Gesendet: Donnerstag, 14. Dezember 2017 16:41 > An: Commons Developers List > Betreff: Re: [text] Adapt the Log4j 2 Interpolator to [text] > > Yes, the Interpolator was borrowed from Commons Configuration. > > Ralph > > > On Dec 14, 2017, at 5:20 AM, Jörg Schaible <joerg.schaible@bpm- > inspire.com> wrote: > > > > Hi Gary, > > > > Am Wed, 13 Dec 2017 15:17:56 -0700 schrieb Gary Gregory: > > > >> Hi All, > >> > >> Log4j 2 provides it's own copy of our StrSubstitutor/StrLookup > >> framework enhanced for Log4j's needs. In addition it provides a > >> custom StrLookup called Interpolator which allows for lookups like: > >> > >> ${sys:java.version} and ${env:MY_VAR} to look up system properties > >> and environment variables respectively as well as other sub maps. > > > > You will find this also in commons-configurations. > > > >> I would like to borrow this concept of a composite and keyed > >> StrLookup and make it a first class citizen in [text]. > >> > >> This would look like this: > >> > >> Interpolator interpolator = new o.a.c.t.Interpolator(); > >> interpolator.put("gary", StrLookup.mapLookup(new HashMap())); > >> interpolator.put("alice", StrLookup.mapLookup(new HashMap())); > >> StrSubstitutor strSubstitutor = new StrSubstitutor(interpolator); > >> > >> Thoughts? > > > > Cheers, > > Jörg > > > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org > > For additional commands, e-mail: dev-h...@commons.apache.org > > > > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org > For additional commands, e-mail: dev-h...@commons.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org For additional commands, e-mail: dev-h...@commons.apache.org