Eclipse Community Forums: Buckminster » "Chanining" resolvers

Help

Home

Home » Archived » Buckminster » "Chanining" resolvers(Problem with a resolution from an awkward location)

Show: Today's Messages :: Show Polls :: Message Navigator

"Chanining" resolvers [message #669715]

Wed, 11 May 2011 09:11

Fabian Baboschi

Messages: 41
Registered: December 2009

Member

I want to include a feature and it's plugins in my product.

The feature and plugins are stored into a .jar file on artifactory.
Also, the .jar file doesn't contain a p2 update site, but a classic (3.4 style).
The structure of the .jar containing the resources is:
- .
---- features/
------- my.feature_1.0.0.20110511-1514.jar
---- plugins/
------- my.plugin_1.0.0.20110511-1514.jar
---- MANIFEST.MF

My questions are:
First of all, is it possible to use Buckminster to import from this source even by developing some sort of resolver or extending a reader type?

Is it possible to chain the resolvers somehow. For example:
Use a p2SiteGenerator reader which uses a zip reader which uses an artifactory reader?

What would be the best practice for doing such chaining (importing stuff into the workspace as well as in the build)?

Report message to a moderator

Re: "Chanining" resolvers [message #669725 is a reply to message #669715]

Wed, 11 May 2011 09:27

Thomas Hallgren

Messages: 3240
Registered: July 2009

Senior Member

On 2011-05-11 11:11, Fabian Baboschi wrote:
> I want to include a feature and it's plugins in my product.
>
> The feature and plugins are stored into a .jar file on
> artifactory.
> Also, the .jar file doesn't contain a p2 update site, but a
> classic (3.4 style).
> The structure of the .jar containing the resources is:
> - .
> ---- features/
> ------- my.feature_1.0.0.20110511-1514.jar
> ---- plugins/
> ------- my.plugin_1.0.0.20110511-1514.jar
> ---- MANIFEST.MF
>
> My questions are:
> First of all, is it possible to use Buckminster to import
> from this source even by developing some sort of resolver
> or extending a reader type?
>
Yes, you can probably do that out of the box using a url reader type with a matcher (to extract names and versions from
file names).

> Is it possible to chain the resolvers somehow. For example:
>
> Use a p2SiteGenerator reader which uses a zip reader which
> uses an artifactory reader?
>
Yes, either put them both in the same provider (best fit wins) or put them in separate providers and use locators with
failOnError=false (first fit wins).

> What would be the best practice for doing such chaining
> (importing stuff into the workspace as well as in the
> build)?
>
I would never import binaries into the workspace. Put them in he target platform.

Regards,
Thomas Hallgren

Report message to a moderator

Re: "Chanining" resolvers [message #669793 is a reply to message #669725]

Wed, 11 May 2011 14:23

Fabian Baboschi

Messages: 41
Registered: December 2009

Member

Actually, after looking closer at the content of the .jar file, the exact structure is:

---- features/
------- my.feature_1.0.0.20110511-1514/
---------- feature.xml
---- plugins/
------- my.feature.plugin1_1.0.0.20110511-1514/ (and subfolders)
------- my.feature.plugin2_1.0.0.20110511-1514.jar
---- META-INF/MANIFEST.MF

So it's an "ancient" feature (that is used by another 3.4 build).
Can the p2 reader be used on the folder structure above?
Can I import that into the target platform?

Also, by chaining, what I meant is for the output of the first reader to be used as input for the second reader and so on.
In my case, my problem is exactly this:
The maven2 reader should output the jar file containing the above structure, then a url.zipped reader should use the previous output and have another output that would then be used by a third reader (eclipse.import?, p2?) that is able to parse the structure I showed before.

Report message to a moderator

Re: "Chanining" resolvers [message #671240 is a reply to message #669793]

Tue, 17 May 2011 09:08

Fabian Baboschi

Messages: 41
Registered: December 2009

Member

Can I execute an action before the resolution of the dependencies for a feature is performed?

In my scenario, I'd like to unpack the jar file containing the folders above when a referring feature needs it, but before the actual resolution is performed. Maybe this way the resolution will find it when it searches for it (via a rmap local entry pointing to the location where this action will output the result).

I tried using generators, but it just doesn't work. There is no error in the logs, but I get the dreaded "A selected specification is unresolved".

Report message to a moderator

Previous Topic:	Best way to mirror a p2 respositry
Next Topic:	Buckminster simple example

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

]

Current Time: Fri Jan 17 16:03:50 GMT 2025

.:: Contact :: Home ::.

Breadcrumbs

Sign up to our Newsletter