reconciling geronimo common libs and standalone maven2 repository

[CedricHurst <ce...@gmail.com>]

I have another question regarding Geronimo and Maven2 interaction.

In the lab we're building, we have quite a few dependencies (Spring,
Hibernate, org.json, Derby Client).  We're using Maven2 to define these
dependencies within the project and inject them in the WAR file, but we're
wondering if there's a better way.  I've often stared at the common libs
portlet in the admin console and wondered if there was a way to get that
talking to our standalone maven repository.  This would would allow us to
pull down the dependency trees through the maven command and have them
available inside the Geronimo installation at-large (instead of manually
adding 20+ libraries by hand from the admin console).  That way, instead of
specifying the dependencies in the pom.xml and deploying a 100MB+ war file,
we could define the dependencies in the deployment plan and push much
smaller files to the server, relying on common libs to supply the needed
jars.  Is this possible?
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Re: reconciling geronimo common libs and standalone maven2 repository

[David Jencks <da...@yahoo.com>]

On Mar 15, 2007, at 6:19 PM, Cedric Hurst wrote:

>
> I looked into plugins a few times before but I wasn't quite sure  
> how they
> would work with Maven repositories directly.  From my  
> understanding, the
> repo must have a geronimo-plugins.xml file to work as a remote  
> repository
> for Geronimo.
>
> I guess I'm really just trying to gain access to the rich library  
> of maven2
> libraries from within the geronimo common libs.
> Unfortunately, the Geronimo Plugins catalog seems relatively  
> limited so far.
> I can't any of my required dependencies on geronimoplugins.com,  
> whereas I
> can find them all on http://mirrors.ibiblio.org/pub/mirrors/ 
> maven2/.  I'd
> like to be able to say say "I need hibernate-3.2" in my deployment  
> plan and
> have Geronimo go out to the Maven2 central repository and download  
> hibernate
> and all its dependencies.

so, I didn't explain myself very well, all too common... hopefully I  
won't make things worse....

Geronimo is built up out of modules (formerly called configurations)  
which are more or less pre-deployed applications with dependency  
information in a form geronimo can understand.  Geronimo plugins are  
modules with a little more metadata, but I'm not quite sure what it  
is, just that it makes it easier to move them around and install them  
from remote plugin repos.

So, I think you want to end up with your app as a geronimo module, or  
more likely a geronimo plugin.  There are a couple ways to do that.   
I think the most satisfactory for you will probably be to use the  
geronimo car-maven-plugin to directly build the module/plugin using  
maven, and then it will be in your local maven repo.  You can also  
deploy it to remote repos using mvn deploy (I think, I have't tried  
this).  To turn it into a plugin you just include an xml file in the  
appropriate spot after figuring out what goes inside.

OK, now you have your module, and you need to get it into a geronimo  
server.  This is the part where I'm not sure what functionality is  
currently available where.  i think if its a plugin then the plugin  
installer will pull the dependencies you need, but I'm not exactly  
sure where they are specified or pulled from.  You can also just  
install a car file but I don't think that pulls dependencies from  
anywhere -- the deployer does't know about maven repos.  the maven  
assembly stuff definitely knows how to install a car file from your  
local repo into a geronimo repo, and pull all the dependencies  
transitively into the g. repo.  However I don't know whether it can  
do this with an existing server -- the only places its used now are  
to build a whole new server.

I think what we need is a way to run the assembly functionality in  
the car plugin so it installs the car + dependencies into a specified  
geronimo server.  I don't know if it can do this right now but all  
the basic functionality is there, at most we'd need to wire it up  
appropriately.

thanks
david jencks


>
>
> djencks wrote:
>>
>>
>> On Mar 15, 2007, at 5:13 PM, CedricHurst wrote:
>>
>>>
>>> I have another question regarding Geronimo and Maven2 interaction.
>>>
>>> In the lab we're building, we have quite a few dependencies (Spring,
>>> Hibernate, org.json, Derby Client).  We're using Maven2 to define
>>> these
>>> dependencies within the project and inject them in the WAR file,
>>> but we're
>>> wondering if there's a better way.  I've often stared at the common
>>> libs
>>> portlet in the admin console and wondered if there was a way to get
>>> that
>>> talking to our standalone maven repository.  This would would allow
>>> us to
>>> pull down the dependency trees through the maven command and have  
>>> them
>>> available inside the Geronimo installation at-large (instead of
>>> manually
>>> adding 20+ libraries by hand from the admin console).  That way,
>>> instead of
>>> specifying the dependencies in the pom.xml and deploying a 100MB+
>>> war file,
>>> we could define the dependencies in the deployment plan and push  
>>> much
>>> smaller files to the server, relying on common libs to supply the
>>> needed
>>> jars.  Is this possible?
>>
>> Yes.  That's kind of how we build the server.  The car-maven-plugin
>> uses the local maven repository as the geronimo repository and
>> basically starts a server up using the maven repo, and runs some
>> deploy command, and then copies the result(s) back into the local
>> maven repo.  Assembly looks at the recorded geronimo dependencies in
>> each module/configuration we install and pulls its dependencies from
>> the local maven repo into the repository of the server being  
>> assembled.
>>
>> There's also the plugin system which is pretty much like what the
>> assembly stuff does except it can work with remote maven repos.  It
>> has an additional xml file describing more about the plugin, but I'm
>> not exactly sure what.
>>
>> There are some problems relating the geronimo and maven concepts of
>> repository, mostly about how to resolve versions, but I'm not sure
>> they are insurmountable, just very annoying when you run into them.
>>
>> So, I'm not really clear on what you are trying to do, but I think if
>> you study these a bit you can figure out a way to have a slim war
>> with no external jars in it and use a collection of maven and
>> geronimo repositories to load all the classes.
>>
>> One thing the car plugin does for you if you use it to "predeploy"
>> your app is copy the maven dependencies from the pom.xml into your
>> geronimo plan: that's why the plans in our configs dir don't have an
>> environment element in them.  This is slightly problematical due to
>> the different meanings of "scope" in maven and geronimo and we might
>> adopt a different system soon but might still be worth looking at.
>>
>> I think I'd recommend you go for a plugin.
>>
>> Hope this helps, perhaps I'll understand better exactly what you want
>> to do with your next reply.
>>
>> thanks
>> david jencks
>>
>>
>>> -- 
>>> View this message in context: http://www.nabble.com/reconciling-
>>> geronimo-common-libs-and-standalone-maven2-repository-
>>> tf3411000s134.html#a9503712
>>> Sent from the Apache Geronimo - Users mailing list archive at
>>> Nabble.com.
>>>
>>
>>
>>
>
> -- 
> View this message in context: http://www.nabble.com/reconciling- 
> geronimo-common-libs-and-standalone-maven2-repository- 
> tf3411000s134.html#a9504814
> Sent from the Apache Geronimo - Users mailing list archive at  
> Nabble.com.
>

Re: reconciling geronimo common libs and standalone maven2 repository

[Cedric Hurst <ce...@gmail.com>]

I looked into plugins a few times before but I wasn't quite sure how they
would work with Maven repositories directly.  From my understanding, the
repo must have a geronimo-plugins.xml file to work as a remote repository
for Geronimo.  

I guess I'm really just trying to gain access to the rich library of maven2
libraries from within the geronimo common libs.  
Unfortunately, the Geronimo Plugins catalog seems relatively limited so far. 
I can't any of my required dependencies on geronimoplugins.com, whereas I
can find them all on http://mirrors.ibiblio.org/pub/mirrors/maven2/.  I'd
like to be able to say say "I need hibernate-3.2" in my deployment plan and
have Geronimo go out to the Maven2 central repository and download hibernate
and all its dependencies.


djencks wrote:
> 
> 
> On Mar 15, 2007, at 5:13 PM, CedricHurst wrote:
> 
>>
>> I have another question regarding Geronimo and Maven2 interaction.
>>
>> In the lab we're building, we have quite a few dependencies (Spring,
>> Hibernate, org.json, Derby Client).  We're using Maven2 to define  
>> these
>> dependencies within the project and inject them in the WAR file,  
>> but we're
>> wondering if there's a better way.  I've often stared at the common  
>> libs
>> portlet in the admin console and wondered if there was a way to get  
>> that
>> talking to our standalone maven repository.  This would would allow  
>> us to
>> pull down the dependency trees through the maven command and have them
>> available inside the Geronimo installation at-large (instead of  
>> manually
>> adding 20+ libraries by hand from the admin console).  That way,  
>> instead of
>> specifying the dependencies in the pom.xml and deploying a 100MB+  
>> war file,
>> we could define the dependencies in the deployment plan and push much
>> smaller files to the server, relying on common libs to supply the  
>> needed
>> jars.  Is this possible?
> 
> Yes.  That's kind of how we build the server.  The car-maven-plugin  
> uses the local maven repository as the geronimo repository and  
> basically starts a server up using the maven repo, and runs some  
> deploy command, and then copies the result(s) back into the local  
> maven repo.  Assembly looks at the recorded geronimo dependencies in  
> each module/configuration we install and pulls its dependencies from  
> the local maven repo into the repository of the server being assembled.
> 
> There's also the plugin system which is pretty much like what the  
> assembly stuff does except it can work with remote maven repos.  It  
> has an additional xml file describing more about the plugin, but I'm  
> not exactly sure what.
> 
> There are some problems relating the geronimo and maven concepts of  
> repository, mostly about how to resolve versions, but I'm not sure  
> they are insurmountable, just very annoying when you run into them.
> 
> So, I'm not really clear on what you are trying to do, but I think if  
> you study these a bit you can figure out a way to have a slim war  
> with no external jars in it and use a collection of maven and  
> geronimo repositories to load all the classes.
> 
> One thing the car plugin does for you if you use it to "predeploy"  
> your app is copy the maven dependencies from the pom.xml into your  
> geronimo plan: that's why the plans in our configs dir don't have an  
> environment element in them.  This is slightly problematical due to  
> the different meanings of "scope" in maven and geronimo and we might  
> adopt a different system soon but might still be worth looking at.
> 
> I think I'd recommend you go for a plugin.
> 
> Hope this helps, perhaps I'll understand better exactly what you want  
> to do with your next reply.
> 
> thanks
> david jencks
> 
> 
>> -- 
>> View this message in context: http://www.nabble.com/reconciling- 
>> geronimo-common-libs-and-standalone-maven2-repository- 
>> tf3411000s134.html#a9503712
>> Sent from the Apache Geronimo - Users mailing list archive at  
>> Nabble.com.
>>
> 
> 
> 

-- 
View this message in context: http://www.nabble.com/reconciling-geronimo-common-libs-and-standalone-maven2-repository-tf3411000s134.html#a9504814
Sent from the Apache Geronimo - Users mailing list archive at Nabble.com.

Re: reconciling geronimo common libs and standalone maven2 repository

[David Jencks <da...@yahoo.com>]

On Mar 15, 2007, at 5:13 PM, CedricHurst wrote:

>
> I have another question regarding Geronimo and Maven2 interaction.
>
> In the lab we're building, we have quite a few dependencies (Spring,
> Hibernate, org.json, Derby Client).  We're using Maven2 to define  
> these
> dependencies within the project and inject them in the WAR file,  
> but we're
> wondering if there's a better way.  I've often stared at the common  
> libs
> portlet in the admin console and wondered if there was a way to get  
> that
> talking to our standalone maven repository.  This would would allow  
> us to
> pull down the dependency trees through the maven command and have them
> available inside the Geronimo installation at-large (instead of  
> manually
> adding 20+ libraries by hand from the admin console).  That way,  
> instead of
> specifying the dependencies in the pom.xml and deploying a 100MB+  
> war file,
> we could define the dependencies in the deployment plan and push much
> smaller files to the server, relying on common libs to supply the  
> needed
> jars.  Is this possible?

Yes.  That's kind of how we build the server.  The car-maven-plugin  
uses the local maven repository as the geronimo repository and  
basically starts a server up using the maven repo, and runs some  
deploy command, and then copies the result(s) back into the local  
maven repo.  Assembly looks at the recorded geronimo dependencies in  
each module/configuration we install and pulls its dependencies from  
the local maven repo into the repository of the server being assembled.

There's also the plugin system which is pretty much like what the  
assembly stuff does except it can work with remote maven repos.  It  
has an additional xml file describing more about the plugin, but I'm  
not exactly sure what.

There are some problems relating the geronimo and maven concepts of  
repository, mostly about how to resolve versions, but I'm not sure  
they are insurmountable, just very annoying when you run into them.

So, I'm not really clear on what you are trying to do, but I think if  
you study these a bit you can figure out a way to have a slim war  
with no external jars in it and use a collection of maven and  
geronimo repositories to load all the classes.

One thing the car plugin does for you if you use it to "predeploy"  
your app is copy the maven dependencies from the pom.xml into your  
geronimo plan: that's why the plans in our configs dir don't have an  
environment element in them.  This is slightly problematical due to  
the different meanings of "scope" in maven and geronimo and we might  
adopt a different system soon but might still be worth looking at.

I think I'd recommend you go for a plugin.

Hope this helps, perhaps I'll understand better exactly what you want  
to do with your next reply.

thanks
david jencks


> -- 
> View this message in context: http://www.nabble.com/reconciling- 
> geronimo-common-libs-and-standalone-maven2-repository- 
> tf3411000s134.html#a9503712
> Sent from the Apache Geronimo - Users mailing list archive at  
> Nabble.com.
>