RE: [equinox-dev] How can I embed a JAR in a plugin?

["David Leangen" <osgi@xxxxxxxxxxx>]

Interesting...

Ok, thanks a lot for all the info!


Cheers,
David



> -----Original Message-----
> From: equinox-dev-bounces@xxxxxxxxxxx
> [mailto:equinox-dev-bounces@xxxxxxxxxxx]On Behalf Of Jeremy Volkman
> Sent: 9 May 2007 22:52
> To: Equinox development mailing list
> Subject: Re: [equinox-dev] How can I embed a JAR in a plugin?
>
>
> David,
>
> We usually do #2. I feel that using embedded jars keeps the bundles
> cleaner, and updating the jars is a bit easier. As Tom pointed out,
> though, there are reason to go with #1, one being that you can use the
> jar with PDE without exploding it. It's really a matter of team
> preference.
>
> We have tooling that populates the PDE target platform with bundle
> dependencies from our
> internal repository.  When doing so, it automatically determines
> whether or not the bundle needs to be exploded in the target platform.
>
> - Jeremy
>
> On 5/9/07, David Leangen <osgi@xxxxxxxxxxx> wrote:
> >
> > Jeremy,
> >
> > Thank you! That completely answers my question.
> >
> > You mentioned two ways to do this:
> >
> >  - extract the contents (i.e. class files) of thirdparty.jar into a
> >     folder in the bundle's ".", or
> >
> >  - keep the jar intact, but use a directory structure instead of
> >    a jar file (which contains thirdparty.jar)
> >
> >
> > What is the "usual" or "best" practice?
> >
> >
> > Cheers,
> > David
> >
> >
> >
> > > -----Original Message-----
> > > From: Jeremy Volkman [mailto:jvolkman@xxxxxxxxx]
> > > Sent: 9 May 2007 19:35
> > > To: osgi@xxxxxxxxxxx; Equinox development mailing list
> > > Subject: Re: [equinox-dev] How can I embed a JAR in a plugin?
> > >
> > >
> > > David,
> > >
> > > If I understand your problem correctly, you're trying to include this
> > > third party jar in your Eclipse target platform so that it can be used
> > > by plugin projects in your workspace. If this is the case, you're
> > > running into the fact that Eclipse PDE doesn't support developing
> > > against bundles with embedded jars.  This is not Equinox's problem,
> > > but rather a side effect of PDE being dependent upon the JDT, and
> > > JDT's inability to find a class that's within an embedded jar.
> > >
> > > To put a bundle with an embedded jar in your target platform, simply
> > > extract it.  E.g., if your bundle was "com.somecompany.mybundle.jar",
> > > you'd extract it to a directory called "com.somecompany.mybundle"
> > > inside your plugins directory.  You can see that many of the Eclipse
> > > plugins are distributed like this.
> > >
> > > Another thing to note is that you can change the PDE target platform
> > > directory to something other than the Eclipse plugins directory.  This
> > > allows you full control over which bundles are available to your
> > > workspace bundles and removes all the distributed Eclipse bundle
> > > exports. The option is under Preferences -> Plug-in Development ->
> > > Target Platform. This of course is not what you want if you're
> > > developing an Eclipse plugin. :)
> > >
> > > Hope that helps,
> > > Jeremy
> > >
> > > On 5/9/07, David Leangen <osgi@xxxxxxxxxxx> wrote:
> > > >
> > > > Since many OSS projects do not package their code as osgi
> bundles, I've
> > > > had to create my own bundles from time to time.
> > > >
> > > > This time, I thought that rather than including it as a
> project in my
> > > > Eclipse environment, I'll put the bundle in my plugins directory.
> > > >
> > > >
> > > > However, I have not yet been able to figure out how to expose the
> > > > classpath of the embedded jar file to my projects in the workspace.
> > > >
> > > > If I directly compile the code (thus all the class files
> are in "." in
> > > > the bundle rather than in a jar in the bundle), I can
> include the bundle
> > > > this way without any problems.
> > > >
> > > >
> > > > I thought that I only needed to include the jar in the
> Bundle-ClassPath
> > > > entry in the manifest, but Equinox does not recognize this.
> > > >
> > > >
> > > > What does Equinox require that I do to expose this embedded
> jar to my
> > > > projects in Eclipse via my plugin bundle?
> > > >
> > > >
> > > >
> > > > Thank you!
> > > > David
> > > >
> > > >
> > > >
> > > > _______________________________________________
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> > > > equinox-dev@xxxxxxxxxxx
> > > > https://dev.eclipse.org/mailman/listinfo/equinox-dev
> > > >
> > >
> >
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