On Fri, Oct 3, 2008 at 8:02 PM, David Jencks <[EMAIL PROTECTED]> wrote:
> Is there an overview of how the existing TGP works, preferably > comprehensible from a geronimo-centric viewpoint? > On Oct 3, 2008, at 2:57 AM, ant elder wrote: > > I'd like to start spending more time actively working on the Tuscany > Geronimo integration and having that more support the SCA JEE specification > (see: [1]). Here is a rough outline of what i'd like to do: > > The goal of this would be to use Geronimo and Tuscany to create an > SCA-enabled Java EE runtime, which from the SCA JEE specification means "a > Java EE runtime that supports deployment and execution of SCA-enhanced Java > EE applications as well as SCA-enhanced Java EE modules." > > We already have a start of that with the old Tuscany Geronimo Plugin [2] > and there's another wiki page thats started to be used to capture some > requirements at [3]. Currently the old TGP has got out of date and doesn't > work with any current releases of Geronimo or Tuscany so the first thing to > do is to get a basic plugin going again and then gradually add functionality > to it so it does things like: > - adds all Tuscany jars and their dependencys into Geronimo > > > If you build this stuff as a geronimo plugin using the geronimo maven2 > car-maven-plugin the maven dependencies will turn into geronimo plugin > dependencies and get installed automatically when you install the TGP into a > geronimo server. I don't think this was really working when the original > TGP was written. > > > - supports existing Tuscany webapps without needing to include any Tuscany > jars or dependencys in the lib directory > > > Keep in mind I know nothing about tuscany :-) > You may find it valuable to set up a "tuscany classloader" geronimo plugin > that has all the tuscany jars in it, and has appropriate parents for stuff > it needs like jee specs or jaxb. Then any app can use this as a parent > classloader and get all the tuscany stuff at once, and all apps will be > using tuscany classes from the same classloader. > and I know little about Geronimo ... :-) That sounds good, there's going to need to be some work to get the classloading right and i don't understand all the Geronimo classloading options yet. On the surface of it i think we need the Tuscany/SCA API classes available to applications but the Tuscany runtime classes hidden, and then like you say to share things like jee specs or jaxb though there may be some version requrement incompatabilities we need to deal with to do that. We've already been having some issues running tuscany within webapps and having classloader issues with Geronimo and the app using the same class loaded in differnet classloaders. > > > - supports simple jar contributions into a Tuscany standalone node > - supports Tuscany using Geronimo infrastructure for things such as HTTP > and JMS hosts > - supports for SCA enabled JEE application local assembly > - supports SCA wiring across JEE applications and modules > > > These sound cool, wish I knew what they meant :-) > :) Thats something we need to fix as to foster some interest around SCA in JEE we need to make all this a bit easier to understand. > > thanks > david jencks > > > > Thats a high level and incomplete list, it is in a rough order of when > things get done and some of the items may not be needed in the log term but > are just stepping stones to the later items. There's been lots of off list > discussion about this so i'd like to try to move that all to the mailing > lists from now so everyone can participate and can see whats going on. I'd > like to try to break the work down into several milestones with actual > releases that we can ask users in both Tuscany and Geronimo to try out as we > go along to get feedback and also to try to promote some interest around SCA > in JEE. > > ...ant > > [1] > http://www.oasis-open.org/committees/download.php/29127/sca-jee-1[1].1-spec-wd03.doc<http://www.oasis-open.org/committees/download.php/29127/sca-jee-1%5B1%5D.1-spec-wd03.doc> > [2] http://cwiki.apache.org/TUSCANYWIKI/tuscany-geronimo-integration.html > [3] > http://cwiki.apache.org/confluence/display/TUSCANYWIKI/Java+EE+Integration > > > >
