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Posted to dev@cocoon.apache.org by Stefano Bagnara <ap...@bago.org> on 2008/06/17 10:05:09 UTC
Avalon-Spring bridge (Was: Excalibur potential)
Carsten Ziegeler ha scritto:
> You might want to have a look at the Avalon-Spring bridge from the
> Apache Cocoon project. This allows you to use Avalon/Excalibur
> configurations and components as Spring beans - which is very
> interesting if you already have used Avalon in the past and want to
> reuse your stuff in Spring.
Hi Carsten,
in the JAMES project we also developed something similar to an
Avalon-Spring bridge. We most often call it a Spring based Avalon
container compatible with the Phoenix configuration.
It currently is 99% generic but at the moment is part of james main
source tree and includes a couple of things specific to james:
http://svn.apache.org/repos/asf/james/server/trunk/spring-deployment/
I searched for Avalon-Spring bridge from cocoon but I didn't find much
information: can you give me more detail (links?).
Maybe we can merge the Avalon-Spring bridge efforts with Cocoon, and
maybe the avalon website should provide some information about the tool,
WDYT?
Stefano
PS: sorry for the crosspost to cocoon and james dev lists in CC, please
use the excalibur list for replies.
Re: Avalon-Spring bridge (Was: Excalibur potential)
Posted by Ralph Goers <Ra...@dslextreme.com>.
Thomas Vandahl wrote:
>
> I thought Cocoon is going the OSGI way? I'd expect some kind of
> Avalon-OSGI-Bridge then or am I mislead? Does such a thing exist? I
> guess it would not be too difficult - using one of the "lighter"
> containers.
>
Cocoon experimented with OSGi but tabled that in favor of just
converting from Avalon to Spring. The feeling was that once that was
done it wouldn't be too great a stretch to leverage Spring's OSGi
support for Cocoon blocks. No real work has started on that though, at
least to my knowledge.
Ralph
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Re: Avalon-Spring bridge (Was: Excalibur potential)
Posted by Carsten Ziegeler <cz...@apache.org>.
Thomas Vandahl wrote:
>
> I thought Cocoon is going the OSGI way? I'd expect some kind of
> Avalon-OSGI-Bridge then or am I mislead? Does such a thing exist? I
> guess it would not be too difficult - using one of the "lighter"
> containers.
>
Hi Thomas,
Cocoon wanted to use OSGi for so long, but never made it :( As Ralph
pointed out, after we had the Avalon-Spring bridge and Spring dynamic
modules was announced, we thought that we get OSGi for free...well,
unfortunately Spring dynamic modules doesn't come for free and Cocoon
has messed up things like clear modularization in terms of packages used
by the various modules. This has to be cleaned up beforehand.
But afaik, there is noone working on this atm.
Carsten
--
Carsten Ziegeler
cziegeler@apache.org
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Re: Avalon-Spring bridge (Was: Excalibur potential)
Posted by Thomas Vandahl <th...@tewisoft.de>.
Stefano Bagnara wrote:
> Carsten Ziegeler ha scritto:
>> You might want to have a look at the Avalon-Spring bridge from the
>> Apache Cocoon project. This allows you to use Avalon/Excalibur
>> configurations and components as Spring beans - which is very
>> interesting if you already have used Avalon in the past and want to
>> reuse your stuff in Spring.
>
> Maybe we can merge the Avalon-Spring bridge efforts with Cocoon, and
> maybe the avalon website should provide some information about the tool,
> WDYT?
I thought Cocoon is going the OSGI way? I'd expect some kind of
Avalon-OSGI-Bridge then or am I mislead? Does such a thing exist? I
guess it would not be too difficult - using one of the "lighter" containers.
Bye, Thomas.
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Re: Avalon-Spring bridge (Was: Excalibur potential)
Posted by Siegfried Goeschl <si...@it20one.at>.
Hi folks,
as a final proof that Avalon is not dead and thereby producing a variety
of incompatible solution :
http://people.apache.org/~sgoeschl/download/fulcrum-spring/
Of course, the implementation is only 99% generic because
+) some container-specific implementation details are needed there to
instantiate the YAAFI container and to set a parent ServiceManager to
lookup service from a parent container
+) the service lookup done to find an Avalon service from Spring and the
other way round is a soft dependency on the Avalon container being used
Having said that
+) is there some generic, valuable & reusable stuff from James, Cocoon
and Fulcrum?
+) if yes, any plans to move that out of the individual projects?
+) if yes, any plans to host the code base on Excalibur or Fulcrum?
+) and it is a good idea to provide some links from the Excalibur
homepage ... :-)
Cheers,
Siegfried Goeschl
Stefano Bagnara wrote:
> Carsten Ziegeler ha scritto:
>> You might want to have a look at the Avalon-Spring bridge from the
>> Apache Cocoon project. This allows you to use Avalon/Excalibur
>> configurations and components as Spring beans - which is very
>> interesting if you already have used Avalon in the past and want to
>> reuse your stuff in Spring.
>
> Hi Carsten,
>
> in the JAMES project we also developed something similar to an
> Avalon-Spring bridge. We most often call it a Spring based Avalon
> container compatible with the Phoenix configuration.
>
> It currently is 99% generic but at the moment is part of james main
> source tree and includes a couple of things specific to james:
> http://svn.apache.org/repos/asf/james/server/trunk/spring-deployment/
>
> I searched for Avalon-Spring bridge from cocoon but I didn't find much
> information: can you give me more detail (links?).
>
> Maybe we can merge the Avalon-Spring bridge efforts with Cocoon, and
> maybe the avalon website should provide some information about the
> tool, WDYT?
>
> Stefano
>
> PS: sorry for the crosspost to cocoon and james dev lists in CC,
> please use the excalibur list for replies.
>
>
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> To unsubscribe, e-mail: dev-unsubscribe@excalibur.apache.org
> For additional commands, e-mail: dev-help@excalibur.apache.org
>
>
>
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Re: Avalon-Spring bridge (Was: Excalibur potential)
Posted by Carsten Ziegeler <cz...@apache.org>.
Stefano Bagnara wrote:
> Carsten Ziegeler ha scritto:
>> You might want to have a look at the Avalon-Spring bridge from the
>> Apache Cocoon project. This allows you to use Avalon/Excalibur
>> configurations and components as Spring beans - which is very
>> interesting if you already have used Avalon in the past and want to
>> reuse your stuff in Spring.
>
> Hi Carsten,
>
> in the JAMES project we also developed something similar to an
> Avalon-Spring bridge. We most often call it a Spring based Avalon
> container compatible with the Phoenix configuration.
>
> It currently is 99% generic but at the moment is part of james main
> source tree and includes a couple of things specific to james:
> http://svn.apache.org/repos/asf/james/server/trunk/spring-deployment/
>
> I searched for Avalon-Spring bridge from cocoon but I didn't find much
> information: can you give me more detail (links?).
>
Hi Stefano,
in Cocoon we directly use Spring which means we read the Avalon
configurations and add the components as beans to a Spring container. We
have a spring bean post processor for Avalon components which calls the
Avalon lifecycle methods like configure(), dispose() etc.
You'll find the code at:
http://svn.apache.org/repos/asf/cocoon/trunk/core/cocoon-sitemap/cocoon-sitemap-impl/src/main/java/org/apache/cocoon/core/container/spring/avalon
Now, currently the code is a little bit tied to Cocoon, but it shouldn't
be hard to separate this from Cocoon - this is still on the todo list
for Cocoon anyway :)
We use the spring xml mechanism and define own xml elements, so you
simply use something like
<avalon:bridge location="someconffile.xml"/>
I think there is more in the bridge like automatically loading
configurations from jar files if they're put at a specific location etc.
But I wrote this code too long ago to actually remember all the details :)
The bridge is using the Cocoon Spring Configurator which is a nice
extension to Spring (and not tied to Cocoon):
http://cocoon.apache.org/subprojects/configuration/1.0/spring-configurator/1.0/1304_1_1.html
> Maybe we can merge the Avalon-Spring bridge efforts with Cocoon, and
> maybe the avalon website should provide some information about the tool,
> WDYT?
>
Yes, I think this makes sense - imho it would make sense to separate
this stuff and perhaps host it at Excalibur.
Carsten
--
Carsten Ziegeler
cziegeler@apache.org
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Re: Avalon-Spring bridge (Was: Excalibur potential)
Posted by Siegfried Goeschl <si...@it20one.at>.
Hi folks,
as a final proof that Avalon is not dead and thereby producing a variety
of incompatible solution :
http://people.apache.org/~sgoeschl/download/fulcrum-spring/
Of course, the implementation is only 99% generic because
+) some container-specific implementation details are needed there to
instantiate the YAAFI container and to set a parent ServiceManager to
lookup service from a parent container
+) the service lookup done to find an Avalon service from Spring and the
other way round is a soft dependency on the Avalon container being used
Having said that
+) is there some generic, valuable & reusable stuff from James, Cocoon
and Fulcrum?
+) if yes, any plans to move that out of the individual projects?
+) if yes, any plans to host the code base on Excalibur or Fulcrum?
+) and it is a good idea to provide some links from the Excalibur
homepage ... :-)
Cheers,
Siegfried Goeschl
Stefano Bagnara wrote:
> Carsten Ziegeler ha scritto:
>> You might want to have a look at the Avalon-Spring bridge from the
>> Apache Cocoon project. This allows you to use Avalon/Excalibur
>> configurations and components as Spring beans - which is very
>> interesting if you already have used Avalon in the past and want to
>> reuse your stuff in Spring.
>
> Hi Carsten,
>
> in the JAMES project we also developed something similar to an
> Avalon-Spring bridge. We most often call it a Spring based Avalon
> container compatible with the Phoenix configuration.
>
> It currently is 99% generic but at the moment is part of james main
> source tree and includes a couple of things specific to james:
> http://svn.apache.org/repos/asf/james/server/trunk/spring-deployment/
>
> I searched for Avalon-Spring bridge from cocoon but I didn't find much
> information: can you give me more detail (links?).
>
> Maybe we can merge the Avalon-Spring bridge efforts with Cocoon, and
> maybe the avalon website should provide some information about the
> tool, WDYT?
>
> Stefano
>
> PS: sorry for the crosspost to cocoon and james dev lists in CC,
> please use the excalibur list for replies.
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: dev-unsubscribe@excalibur.apache.org
> For additional commands, e-mail: dev-help@excalibur.apache.org
>
>
>
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