Date: 2005-01-20T19:46:24
   Editor: ScottEade
   Wiki: Jakarta Turbine Wiki
   Page: Avalonization
   URL: http://wiki.apache.org/jakarta-turbine/Avalonization

   Migrated page.

New Page:

= Moving to Avalon lifecycle interfaces =

This page is for documenting the current plan for moving to the Avalon 
lifecycle interfaces.  This page should be a summary only.  If you 
agree/disagree with a particular point, please cast you vote on this page with 
your name.  

----
 *  Drop the stratum lifecycle interfaces.  They will be replaced with the 
Avalon lifecycle interfaces.  This will be done for Turbine and Fulcrum.

+1 QuintonMcCombs
----
 *  The services layer and all component composition/management code will be 
removed from Fulcrum.  This will leave Fulcrum as a collection of components 
only.

+1 QuintonMcCombs
----
 *  The coupled services of Turbine will remain unchanged.  They should be 
thought of as deprecated in favor of creating new services as Avalon 
components.  We will need to maintain this code for bug fixes but focus 
enhancements on the Fulcrum components.

----
 *  We need a logging solution that will take advantage of atleast log4j if not 
commons-logging.  We should try to keep commons-logging to allow user to pick 
their actual logging solution.  This solution should be a component that we 
could pass to our components.

 Here are some ideas to think about.
   * The development version of ECM will allow log4j use.  Perhaps Fortress or 
Merlin will allow for it as well
   * We could write a custom Logger that will wrap commons-logging.
   * We could borrow some code from Plexus for logging.

 *  This has been completed.  We are using development versions of the 
framework and ECM.  Log4J logging is supported.
----
 *  On the fly conversion of the existing properties format into an Avalon 
Configuration object.
   *  This would only be a short term solution.  Users would be expected to 
move to the new configuration format at some point.
   *  We could also simply change Fulcrum to require the XML configuration.  
Since Fulcrum has never had a release, we could do this....

Either way - +1 QuintonMcCombs

   *  Could maybe be done with some sort of Composite''''''Configuration?  
Merge the old format and the format together? EricPugh
----
 *  Components in Fulcrum need to be compatible with Plexus, ECM, Phoenix, 
Merlin, and Fortress.
   *  This is really more of a very nice to have than an absolute requirement.  
   *  Mainly, we want to use the Servicable interface over Composable.

+1 QuintonMcCombs
----
 *  We should try to release Fulcrum at the same time as Turbine 2.3 if 
possible.  
   *  Does this mean that we also need to work on catching the Fulcrum 
components up with the changed to the services coupled with Turbine?
   *  Do we want to use other component from Fulcrum by default in the T2.3 
release?

Releasing at the same time - +1 QuintonMcCombs
----
 *  We need a container for Turbine 2.3.
   *  ECM?
   *  ECM - dev version that allows Log4J logging?
   *  Merlin?
   *  Fortress?

 *  ECM is being used for now.

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