Re: Packaging, usage of, and classloading for extensions & their dependencies

2006-10-06 Thread Jim Marino
On Oct 6, 2006, at 4:16 AM, ant elder wrote: Where do you see all this fitting in with the M2 release? I'd like an M2 release real soon, what do you think we need for that and how about leaving all the OSGi stuff for after M2? Yep, I see it after M2, since I'd like to get the release out

Re: Packaging, usage of, and classloading for extensions & their dependencies

2006-10-06 Thread Jeremy Boynes
On Oct 6, 2006, at 7:00 AM, Ken Tam wrote: Thoughts on the search order/priority for these classloader hierarchies? Child-before-parent has some real advantages here -- it lets extensions specify exactly what version of a dependency to use and expose to its consumers, rather than have the hostin

Re: Packaging, usage of, and classloading for extensions & their dependencies

2006-10-06 Thread Ken Tam
1) we can support ordinary jars by adding multi-parent support to the composite classloader. This would work in conjunction with the XML dependency mechanism by allowing the dependency to be loaded in an isolated classloader which would then be one parent of the runtime component and one parent of

Re: Packaging, usage of, and classloading for extensions & their dependencies

2006-10-06 Thread Jeremy Boynes
The release plan had osgi in the "include if its ready" category. IMO I don't think it's ready yet so would put it in the "contrib" category (in the source, not in the binary, YMMV). The need for multi-parent is really driven by SDO and Spring support. In the webapp environment the user is

Re: Packaging, usage of, and classloading for extensions & their dependencies

2006-10-06 Thread Jeremy Boynes
On Oct 5, 2006, at 11:28 PM, Jim Marino wrote: A more complex case is where a composite at some arbitrary depth down the application tree wants to share a class with a system component (such as an extension) that is at some other arbitrary depth down the runtime tree. We have two solutions o

Re: Packaging, usage of, and classloading for extensions & their dependencies

2006-10-06 Thread ant elder
Where do you see all this fitting in with the M2 release? I'd like an M2 release real soon, what do you think we need for that and how about leaving all the OSGi stuff for after M2? ...ant On 10/6/06, Jim Marino <[EMAIL PROTECTED]> wrote: > For the webapp host, the default application is con

Re: Packaging, usage of, and classloading for extensions & their dependencies

2006-10-05 Thread Jim Marino
For the webapp host, the default application is contained in the host environment (e.g. it contains JSPs, Servlets et al that are part of the webapp). The default composite has a classloader that is a child of the webapp one so has a classpath that is all the application code + any 's speci

Re: Packaging, usage of, and classloading for extensions & their dependencies

2006-10-05 Thread Jeremy Boynes
On Oct 5, 2006, at 8:19 AM, Ken Tam wrote: Failure to communicate -- I was _agreeing_ with Rick, and saying that if we _didn't_ solve 765 (in particular supporting the pre-scan idea), it would result in an "increasingly crappy user experience". I _like_ just being able to drop extensions into a

Re: Packaging, usage of, and classloading for extensions & their dependencies

2006-10-05 Thread Jeremy Boynes
It's actually even more complex than the situation that you outline as we need to deal with a hierarchy of classloaders on both the application and runtime sides. In general, we also will not have the ability to control what gets added to the host environment's classloaders that are the par

Re: Packaging, usage of, and classloading for extensions & their dependencies

2006-10-05 Thread ant elder
On 10/5/06, Jeremy Boynes <[EMAIL PROTECTED]> wrote: Classifying this as "signing up for an increasingly crappy user experience" is deriding all the work people have put into this already and is certainly disrespectful of the motivations this community. Quit whining, and thanks for volunteerin

Re: Packaging, usage of, and classloading for extensions & their dependencies

2006-10-05 Thread Ken Tam
On 10/5/06, Jeremy Boynes <[EMAIL PROTECTED]> wrote: On Oct 5, 2006, at 7:10 AM, Ken Tam wrote: > Yeah, I haven't run into the ordering issue because I'm just dealing > with individual extensions, but that completely makes sense. > > It feels like if we're going to stay on the track of this maven

Re: Packaging, usage of, and classloading for extensions & their dependencies

2006-10-05 Thread Jeremy Boynes
On Oct 5, 2006, at 7:10 AM, Ken Tam wrote: Yeah, I haven't run into the ordering issue because I'm just dealing with individual extensions, but that completely makes sense. It feels like if we're going to stay on the track of this maven(-like) depot system for managing extensions, I would suppor

Re: Packaging, usage of, and classloading for extensions & their dependencies

2006-10-05 Thread Ken Tam
On 10/5/06, ant elder <[EMAIL PROTECTED]> wrote: I agree its not clear how all this is supposed to work, Venkat and I have also both just being struggling with it. To be complete, adding to your (a) and (b) in (3) there's also a (c) where both the extension and application logic may share a depe

Re: Packaging, usage of, and classloading for extensions & their dependencies

2006-10-05 Thread Jeremy Boynes
As Rick said, the the war plugin has a configuration element do the packaging as Meeraj described here: http://mail-archives.apache.org/mod_mbox/ws-tuscany-dev/200609.mbox/% [EMAIL PROTECTED] In general, you would not want to list extensions as normal pom dependencies as that would have sid

RE: Packaging, usage of, and classloading for extensions & their dependencies

2006-10-05 Thread Meeraj Kunnumpurath
were packaged in during the build using the plugin). Ta Meeraj >> -Original Message- >> From: Ken Tam [mailto:[EMAIL PROTECTED] >> Sent: 05 October 2006 12:07 >> To: tuscany-dev@ws.apache.org >> Subject: Packaging, usage of, and classloading for >

Re: Packaging, usage of, and classloading for extensions & their dependencies

2006-10-05 Thread Ken Tam
On 10/5/06, cr22rc <[EMAIL PROTECTED]> wrote: Ken Tam wrote: > While working with Andy on fixing some of the Spring samples, and > taking a look at the way the war plugin has replaced the web distro, I > ran into a number of issues relating to extensions and their > dependencies. > > 1) It's no

Re: Packaging, usage of, and classloading for extensions & their dependencies

2006-10-05 Thread cr22rc
Ken Tam wrote: While working with Andy on fixing some of the Spring samples, and taking a look at the way the war plugin has replaced the web distro, I ran into a number of issues relating to extensions and their dependencies. 1) It's not obvious how someone building a webapp sample expresses

Re: Packaging, usage of, and classloading for extensions & their dependencies

2006-10-05 Thread ant elder
I agree its not clear how all this is supposed to work, Venkat and I have also both just being struggling with it. To be complete, adding to your (a) and (b) in (3) there's also a (c) where both the extension and application logic may share a dependency. Examples of this are js.jar for the JavaSc

Re: Packaging, usage of, and classloading for extensions & their dependencies

2006-10-05 Thread Andy Piper
At 12:07 05/10/2006, Ken Tam wrote: missing metadata needed to do that right. What do folks think about simplifying it by being more explicit, and then slowly moving back to a more automatic model? Gets my vote. andy ___ N

Packaging, usage of, and classloading for extensions & their dependencies

2006-10-05 Thread Ken Tam
While working with Andy on fixing some of the Spring samples, and taking a look at the way the war plugin has replaced the web distro, I ran into a number of issues relating to extensions and their dependencies. 1) It's not obvious how someone building a webapp sample expresses their requirement