[p2-dev] RE: Equinox p2 Webapp QuickStart

[Warren_Paul@xxxxxxx]

Hi Folks,

 

Apologies is you got my previous, incomplete email.  I accidentally hit send!?!

 

Anyway, what I was trying to say was...

 

I'm trying to create a new p2 profile from scratch (in code) that will be sufficient enough to support further provisioning operations through a custom UI. 

 

Because this creation is happening on a running system (during startup) I am attempting to do this by:-

 

- creating and registering a metadata and artifact repository to eventually hold the local plugins

- generating a set of IUs by introspecting the features and plugins folders, adding JRE IUs and default config IUs

- creating a new, empty profile

- executing a provisioning plan created from a profile change request (that includes the above created bundle set)

 

However, problems occur during creation of the provisioning plan and as I've not really looked into this area much - just treated it as a black box thus far.  The actual warnings/errors I get back from the planner are:-

Status ERROR: org.eclipse.equinox.p2.director code=0 Problems resolving provisioning plan. null children=[Status WARNING: org.eclipse.equinox.p2.director code=0 Unable to satisfy dependency from 1228149811886 0.0.0.1228149811886 to requiredCapability: org.eclipse.equinox.p2.iu/self.org.eclipse.update.feature.default/[1.0.0,1.0.0]. null Status ERROR: org.eclipse.equinox.p2.director code=0 No solution found because of a trivial contradiction in C:\DOCUME~1\warrep\LOCALS~1\Temp\p2Encoding4643.opb. null]

 

So what I am after is confirmation that the above flow is correct.  Am I missing anything?  Let me know if I need more information and I will supply it. 

 

And also any help with the actual p2 warnings/errorss would be gratefully appreciated.  What is '1228149811886 0.0.0.1228149811886 '?  What is a trivial contraditcion?  How do I resolve it?  Maybe I am missing some fundamental IU or something like that?

 

Many thanks,

_Paul

---

From: Simon Kaegi [mailto:Simon_Kaegi@xxxxxxxxxx]
Sent: 19 November 2008 18:42
To: Warren, Paul
Cc: John Arthorne
Subject: RE: Equinox p2 Webapp QuickStart

Paul,
I saw your note on the dev-list. That's the right way to procede.
PerisistenceMetadata was sort of a catchall for generating metadata -- sometthing like the PublisherHelper is now although we try to use the various Publisher actions directly if possible. One useful class to look at is RepositoryListener as it shows a more modern way for how we're generating metadata and artifacts from the contents of a directory. One of the things to still be sorted out is how to generate the other IUs (like the JRE metadata for example) in the servletbridge context. I'm really hoping we'll have time to get to this more general profile boot strapping problem before Christmas but I'm not sure we'll be there. If you can figure out anything in that area in particular that would be helpful.
-Simon

Warren_Paul---11/19/2008 04:35:23 AM---Hi Simon,

From:	Warren_Paul@xxxxxxx
To:	Simon Kaegi/Ottawa/IBM@IBMCA
Cc:	John Arthorne/Ottawa/IBM@IBMCA
Date:	11/19/2008 04:35 AM
Subject:	RE: Equinox p2 Webapp QuickStart

---

Hi Simon,

As per your request I've added 
a discussion page here:-

http://wiki.eclipse.org/Talk:Equinox_p2_Webapp_QuickStart

I'm not sure how many folks 
will pick up on this so is there something I should do to publicize this? Should 
I also post something to the dev list? How do I go about doing that? 

Also - one 
quick question on the code if I may. In your original you used a class called 
PersistenceMetadata. I cant find an equivalent of this in today's code line. Any 
clues?

Many 
thanks
_Paul

---

From: Simon Kaegi 
[mailto:Simon_Kaegi@xxxxxxxxxx] 
Sent: 
17 November 2008 19:31
To: Warren, Paul
Cc: John Arthorne
Subject: Re: Equinox p2 Webapp 
QuickStart

Hi Paul,

I'll add you to the list of folk interested in this use case.
Although I'd love to I simply haven't had time to look at servletbridge integration for some time now. I too also liked the process of generating a bootstrap profile and it's a matter of sorting out how this process integrates neatly with the generation process we have in p2.
e.g. What I did at the time was cool but likely a dead-end unless we can really tie it in well to the main line path.

If you want to take up the cause that would be great. On the equinox dev list Scott Lewis has also been making noises like he's making some progress. Perhaps start a thread and wiki page to try and collect thoughts, requirements, and interested parties.

-Simon

Warren_Paul---11/17/2008 11:57:29 AM---Hi Guys,

From:	Warren_Paul@xxxxxxx
To:	John Arthorne/Ottawa/IBM@IBMCA, Simon Kaegi/Ottawa/IBM@IBMCA
Date:	11/17/2008 11:57 AM
Subject:	Equinox p2 Webapp QuickStart

---

Hi 
Guys,

Please forgive the intrusion. I got your email addresses from the 
following page:-

http://wiki.eclipse.org/Equinox_p2_Webapp_QuickStart

I am trying to do 
exactly this. I've modified the servletbridge to add a release version of 
ganymede equinox and have had some success adding p2 to that. However, creating 
the p2 profile is a somehwhat ad hoc process, as I understand it. 

I much prefer the 
technique you have used here whereby equinox is bootstrapped with a generator 
bundle that creates a profile based on what is there already.

Unfortunately, 
judging by all the .prov (as opposed to .p2) packages your wrote this against an 
older (pre-release) version of equnox. Do you have a more up-to-date version of 
the quickstart code that you could post OR, as I need to do it anyway, can I 
help you create a new version? Be happy to contribute it back to the 
community.

Many thanks,
_Paul