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Posted to user@aries.apache.org by Bengt Rodehav <be...@rodehav.com> on 2010/09/07 08:57:57 UTC
Blueprint and annotations
Is it possible to publish and consume blueprint services using annotations?
I've been using iPojo in Karaf before which has been very convenient.
/Bengt
Re: Blueprint and annotations
Posted by Lin Sun <li...@gmail.com>.
Hi Bengt
Apologies for my belated reply. The blueprint annotation project has
been moved from sandbox to the trunk not so long ago, and it is still
in exploration state and supports the basic functions as described on
the wiki page pointed by Justin. There has been quite some
discussion on the dev list on what functions/capabilities people want
to see with the blueprint annotation in Aries, and I don't think we
ever reached an agreement yet. There isn't any spec by the OSGi
Alliance on blueprint annotation and I would hope the OSGi Alliance
could standardize this in the future.
It is in fact released as part of the Aries 0.2 release, but not
included in the blueprint uber bundle. I am not aware of anybody
using it in production.
HTH
Lin
On Tue, Sep 7, 2010 at 11:32 AM, Bengt Rodehav <be...@rodehav.com> wrote:
> Justin,
> Yes I did actually see this but was unsure of its status. Is the annotations
> specified by OSGi or are they specific to Aries? I'm guessing the former
> which makes it interesting for portability reasons.
> Functionality wise it is very similar to iPojo. However, iPojo does not seem
> related to blueprint at all (I might be wrong here) but seems to solve the
> same problem. iPojo, however, has a lot more functionality and also seems to
> be more mature.
> Have you had any contact with Clement Escoffier at the Felix/iPojo project?
> Seems like iPojo would be a natural candidate for the blueprint annotation
> functionality. I'm a bit confused as to what path I should choose and also
> why there are two different paths regarding this within Apache.
> Do you have more information on this matter?
> Also, what is the status of Aries blueprint annotation support? Is it being
> used in production? When will it be released?
> /Bengt
>
>
> 2010/9/7 Justin Edelson <ju...@gmail.com>
>>
>> Did you see http://incubator.apache.org/aries/blueprintannotation.html
>>
>> On 9/7/10 2:57 AM, Bengt Rodehav wrote:
>> > Is it possible to publish and consume blueprint services using
>> > annotations? I've been using iPojo in Karaf before which has been very
>> > convenient.
>> >
>> > /Bengt
>>
>
>
Re: Blueprint and annotations
Posted by Bengt Rodehav <be...@rodehav.com>.
OK - thanks,
/Bengt
2010/9/8 Timothy Ward <ti...@hotmail.com>
>
>
> Hi Bengt,
>
> As with many of the Aries projects, we're working to extend standards or
> introduce new ones where we feel there are current gaps. An "Application"
> concept doesn't really exist in OSGi, but the Aries application work will be
> fed back into the OSGi standardisation process. We certainly hope to see a
> number of Aries technologies (or something very similar) standardised over
> the next OSGi releases.
>
> Regards,
>
> Tim
>
> ________________________________
> > Date: Wed, 8 Sep 2010 09:07:51 +0200
> > Subject: Re: Blueprint and annotations
> > From: bengt@rodehav.com
> > To: aries-user@incubator.apache.org; justin@justinedelson.com
> >
> > Justin,
> >
> > Yes, I agree, many options is a good thing. I'm just trying to get some
> > overview on things to make it possible to decide on a direction.
> >
> > I'm a bit surprised, though, that the OSGi Alliance hasn't standardised
> > the annotations - it would make sense I think. But I guess a viable
> > path is to use blueprint (XML or annotations) to publish services and
> > then use iPojo to consume them?
> >
> > I'm also evaluating the concept of an Aries application vs Karaf
> > features. Seems like a similar concept to me. Is this Aries specific of
> > OSGi standard?
> >
> > /Bengt
> >
> >
> > 2010/9/7 Justin Edelson
> >>
> > On 9/7/10 11:32 AM, Bengt Rodehav wrote:
> >> Justin,
> >>
> >> Yes I did actually see this but was unsure of its status. Is the
> >> annotations specified by OSGi or are they specific to Aries? I'm
> >> guessing the former which makes it interesting for portability reasons.
> > The Blueprint spec only covers XML. I would hope that the OSGi alliance
> > standardizes annotations.
> >
> >>
> >> Functionality wise it is very similar to iPojo. However, iPojo does not
> >> seem related to blueprint at all (I might be wrong here) but seems to
> >> solve the same problem. iPojo, however, has a lot more functionality and
> >> also seems to be more mature.
> > You are free to use iPojo and Blueprint within the same application.
> > This is, to me, one of the best parts about OSGi - how a service is
> > published has no bearing on how it is consumed.
> >
> >>
> >> Have you had any contact with Clement Escoffier at the Felix/iPojo
> >> project? Seems like iPojo would be a natural candidate for the blueprint
> >> annotation functionality. I'm a bit confused as to what path I should
> >> choose and also why there are two different paths regarding this within
> >> Apache.
> > There's more than 2 within Apache. :)
> >
> > There's also an implementation of the Declarative Services spec in the
> > Felix project (Felix SCR). The Felix SCR Maven plugin supports
> > annotations at compile time to produce the DS descriptor file.
> >
> > Justin
> >
> >>
> >> Do you have more information on this matter?
> >>
> >> Also, what is the status of Aries blueprint annotation support? Is it
> >> being used in production? When will it be released?
> >>
> >> /Bengt
> >>
> >>
> >>
> >> 2010/9/7 Justin Edelson
> >
> >>>>
> >>
> >> Did you see http://incubator.apache.org/aries/blueprintannotation.html
> >>
> >> On 9/7/10 2:57 AM, Bengt Rodehav wrote:
> >>> Is it possible to publish and consume blueprint services using
> >>> annotations? I've been using iPojo in Karaf before which has
> > been very
> >>> convenient.
> >>>
> >>> /Bengt
> >>
> >>
> >
> >
>
>
RE: Blueprint and annotations
Posted by Timothy Ward <ti...@hotmail.com>.
Hi Bengt,
As with many of the Aries projects, we're working to extend standards or introduce new ones where we feel there are current gaps. An "Application" concept doesn't really exist in OSGi, but the Aries application work will be fed back into the OSGi standardisation process. We certainly hope to see a number of Aries technologies (or something very similar) standardised over the next OSGi releases.
Regards,
Tim
________________________________
> Date: Wed, 8 Sep 2010 09:07:51 +0200
> Subject: Re: Blueprint and annotations
> From: bengt@rodehav.com
> To: aries-user@incubator.apache.org; justin@justinedelson.com
>
> Justin,
>
> Yes, I agree, many options is a good thing. I'm just trying to get some
> overview on things to make it possible to decide on a direction.
>
> I'm a bit surprised, though, that the OSGi Alliance hasn't standardised
> the annotations - it would make sense I think. But I guess a viable
> path is to use blueprint (XML or annotations) to publish services and
> then use iPojo to consume them?
>
> I'm also evaluating the concept of an Aries application vs Karaf
> features. Seems like a similar concept to me. Is this Aries specific of
> OSGi standard?
>
> /Bengt
>
>
> 2010/9/7 Justin Edelson
>>
> On 9/7/10 11:32 AM, Bengt Rodehav wrote:
>> Justin,
>>
>> Yes I did actually see this but was unsure of its status. Is the
>> annotations specified by OSGi or are they specific to Aries? I'm
>> guessing the former which makes it interesting for portability reasons.
> The Blueprint spec only covers XML. I would hope that the OSGi alliance
> standardizes annotations.
>
>>
>> Functionality wise it is very similar to iPojo. However, iPojo does not
>> seem related to blueprint at all (I might be wrong here) but seems to
>> solve the same problem. iPojo, however, has a lot more functionality and
>> also seems to be more mature.
> You are free to use iPojo and Blueprint within the same application.
> This is, to me, one of the best parts about OSGi - how a service is
> published has no bearing on how it is consumed.
>
>>
>> Have you had any contact with Clement Escoffier at the Felix/iPojo
>> project? Seems like iPojo would be a natural candidate for the blueprint
>> annotation functionality. I'm a bit confused as to what path I should
>> choose and also why there are two different paths regarding this within
>> Apache.
> There's more than 2 within Apache. :)
>
> There's also an implementation of the Declarative Services spec in the
> Felix project (Felix SCR). The Felix SCR Maven plugin supports
> annotations at compile time to produce the DS descriptor file.
>
> Justin
>
>>
>> Do you have more information on this matter?
>>
>> Also, what is the status of Aries blueprint annotation support? Is it
>> being used in production? When will it be released?
>>
>> /Bengt
>>
>>
>>
>> 2010/9/7 Justin Edelson
>
>>>>
>>
>> Did you see http://incubator.apache.org/aries/blueprintannotation.html
>>
>> On 9/7/10 2:57 AM, Bengt Rodehav wrote:
>>> Is it possible to publish and consume blueprint services using
>>> annotations? I've been using iPojo in Karaf before which has
> been very
>>> convenient.
>>>
>>> /Bengt
>>
>>
>
>
Re: Blueprint and annotations
Posted by Bengt Rodehav <be...@rodehav.com>.
OK, thanks for the info.
/Bengt
2010/9/9 Guillaume Nodet <gn...@gmail.com>
> On Wed, Sep 8, 2010 at 09:07, Bengt Rodehav <be...@rodehav.com> wrote:
> > Justin,
> > Yes, I agree, many options is a good thing. I'm just trying to get some
> > overview on things to make it possible to decide on a direction.
> > I'm a bit surprised, though, that the OSGi Alliance hasn't standardised
> the
> > annotations - it would make sense I think. But I guess a viable path is
> to
> > use blueprint (XML or annotations) to publish services and then use iPojo
> to
> > consume them?
> > I'm also evaluating the concept of an Aries application vs Karaf
> features.
> > Seems like a similar concept to me. Is this Aries specific of OSGi
> standard?
>
> Neither Aries applications nor Karaf featrures are standardized, but the
> OSGi
> alliance is working on subsystems with both inputs. Hopefully both will be
> deprecated in favor of the standard once it's out, but as with all
> standards, it
> can take some time...
>
> > /Bengt
> >
> > 2010/9/7 Justin Edelson <ju...@gmail.com>
> >>
> >> On 9/7/10 11:32 AM, Bengt Rodehav wrote:
> >> > Justin,
> >> >
> >> > Yes I did actually see this but was unsure of its status. Is the
> >> > annotations specified by OSGi or are they specific to Aries? I'm
> >> > guessing the former which makes it interesting for portability
> reasons.
> >> The Blueprint spec only covers XML. I would hope that the OSGi alliance
> >> standardizes annotations.
> >>
> >> >
> >> > Functionality wise it is very similar to iPojo. However, iPojo does
> not
> >> > seem related to blueprint at all (I might be wrong here) but seems to
> >> > solve the same problem. iPojo, however, has a lot more functionality
> and
> >> > also seems to be more mature.
> >> You are free to use iPojo and Blueprint within the same application.
> >> This is, to me, one of the best parts about OSGi - how a service is
> >> published has no bearing on how it is consumed.
> >>
> >> >
> >> > Have you had any contact with Clement Escoffier at the Felix/iPojo
> >> > project? Seems like iPojo would be a natural candidate for the
> blueprint
> >> > annotation functionality. I'm a bit confused as to what path I should
> >> > choose and also why there are two different paths regarding this
> within
> >> > Apache.
> >> There's more than 2 within Apache. :)
> >>
> >> There's also an implementation of the Declarative Services spec in the
> >> Felix project (Felix SCR). The Felix SCR Maven plugin supports
> >> annotations at compile time to produce the DS descriptor file.
> >>
> >> Justin
> >>
> >> >
> >> > Do you have more information on this matter?
> >> >
> >> > Also, what is the status of Aries blueprint annotation support? Is it
> >> > being used in production? When will it be released?
> >> >
> >> > /Bengt
> >> >
> >> >
> >> >
> >> > 2010/9/7 Justin Edelson <justinedelson@gmail.com
> >> > <ma...@gmail.com>>
> >> >
> >> > Did you see
> >> > http://incubator.apache.org/aries/blueprintannotation.html
> >> >
> >> > On 9/7/10 2:57 AM, Bengt Rodehav wrote:
> >> > > Is it possible to publish and consume blueprint services using
> >> > > annotations? I've been using iPojo in Karaf before which has
> been
> >> > very
> >> > > convenient.
> >> > >
> >> > > /Bengt
> >> >
> >> >
> >>
> >
> >
>
>
>
> --
> Cheers,
> Guillaume Nodet
> ------------------------
> Blog: http://gnodet.blogspot.com/
> ------------------------
> Open Source SOA
> http://fusesource.com
>
Re: Blueprint and annotations
Posted by Guillaume Nodet <gn...@gmail.com>.
On Wed, Sep 8, 2010 at 09:07, Bengt Rodehav <be...@rodehav.com> wrote:
> Justin,
> Yes, I agree, many options is a good thing. I'm just trying to get some
> overview on things to make it possible to decide on a direction.
> I'm a bit surprised, though, that the OSGi Alliance hasn't standardised the
> annotations - it would make sense I think. But I guess a viable path is to
> use blueprint (XML or annotations) to publish services and then use iPojo to
> consume them?
> I'm also evaluating the concept of an Aries application vs Karaf features.
> Seems like a similar concept to me. Is this Aries specific of OSGi standard?
Neither Aries applications nor Karaf featrures are standardized, but the OSGi
alliance is working on subsystems with both inputs. Hopefully both will be
deprecated in favor of the standard once it's out, but as with all standards, it
can take some time...
> /Bengt
>
> 2010/9/7 Justin Edelson <ju...@gmail.com>
>>
>> On 9/7/10 11:32 AM, Bengt Rodehav wrote:
>> > Justin,
>> >
>> > Yes I did actually see this but was unsure of its status. Is the
>> > annotations specified by OSGi or are they specific to Aries? I'm
>> > guessing the former which makes it interesting for portability reasons.
>> The Blueprint spec only covers XML. I would hope that the OSGi alliance
>> standardizes annotations.
>>
>> >
>> > Functionality wise it is very similar to iPojo. However, iPojo does not
>> > seem related to blueprint at all (I might be wrong here) but seems to
>> > solve the same problem. iPojo, however, has a lot more functionality and
>> > also seems to be more mature.
>> You are free to use iPojo and Blueprint within the same application.
>> This is, to me, one of the best parts about OSGi - how a service is
>> published has no bearing on how it is consumed.
>>
>> >
>> > Have you had any contact with Clement Escoffier at the Felix/iPojo
>> > project? Seems like iPojo would be a natural candidate for the blueprint
>> > annotation functionality. I'm a bit confused as to what path I should
>> > choose and also why there are two different paths regarding this within
>> > Apache.
>> There's more than 2 within Apache. :)
>>
>> There's also an implementation of the Declarative Services spec in the
>> Felix project (Felix SCR). The Felix SCR Maven plugin supports
>> annotations at compile time to produce the DS descriptor file.
>>
>> Justin
>>
>> >
>> > Do you have more information on this matter?
>> >
>> > Also, what is the status of Aries blueprint annotation support? Is it
>> > being used in production? When will it be released?
>> >
>> > /Bengt
>> >
>> >
>> >
>> > 2010/9/7 Justin Edelson <justinedelson@gmail.com
>> > <ma...@gmail.com>>
>> >
>> > Did you see
>> > http://incubator.apache.org/aries/blueprintannotation.html
>> >
>> > On 9/7/10 2:57 AM, Bengt Rodehav wrote:
>> > > Is it possible to publish and consume blueprint services using
>> > > annotations? I've been using iPojo in Karaf before which has been
>> > very
>> > > convenient.
>> > >
>> > > /Bengt
>> >
>> >
>>
>
>
--
Cheers,
Guillaume Nodet
------------------------
Blog: http://gnodet.blogspot.com/
------------------------
Open Source SOA
http://fusesource.com
Re: Blueprint and annotations
Posted by Bengt Rodehav <be...@rodehav.com>.
Justin,
Yes, I agree, many options is a good thing. I'm just trying to get some
overview on things to make it possible to decide on a direction.
I'm a bit surprised, though, that the OSGi Alliance hasn't standardised the
annotations - it would make sense I think. But I guess a viable path is to
use blueprint (XML or annotations) to publish services and then use iPojo to
consume them?
I'm also evaluating the concept of an Aries application vs Karaf features.
Seems like a similar concept to me. Is this Aries specific of OSGi standard?
/Bengt
2010/9/7 Justin Edelson <ju...@gmail.com>
> On 9/7/10 11:32 AM, Bengt Rodehav wrote:
> > Justin,
> >
> > Yes I did actually see this but was unsure of its status. Is the
> > annotations specified by OSGi or are they specific to Aries? I'm
> > guessing the former which makes it interesting for portability reasons.
> The Blueprint spec only covers XML. I would hope that the OSGi alliance
> standardizes annotations.
>
> >
> > Functionality wise it is very similar to iPojo. However, iPojo does not
> > seem related to blueprint at all (I might be wrong here) but seems to
> > solve the same problem. iPojo, however, has a lot more functionality and
> > also seems to be more mature.
> You are free to use iPojo and Blueprint within the same application.
> This is, to me, one of the best parts about OSGi - how a service is
> published has no bearing on how it is consumed.
>
> >
> > Have you had any contact with Clement Escoffier at the Felix/iPojo
> > project? Seems like iPojo would be a natural candidate for the blueprint
> > annotation functionality. I'm a bit confused as to what path I should
> > choose and also why there are two different paths regarding this within
> > Apache.
> There's more than 2 within Apache. :)
>
> There's also an implementation of the Declarative Services spec in the
> Felix project (Felix SCR). The Felix SCR Maven plugin supports
> annotations at compile time to produce the DS descriptor file.
>
> Justin
>
> >
> > Do you have more information on this matter?
> >
> > Also, what is the status of Aries blueprint annotation support? Is it
> > being used in production? When will it be released?
> >
> > /Bengt
> >
> >
> >
> > 2010/9/7 Justin Edelson <justinedelson@gmail.com
> > <ma...@gmail.com>>
> >
> > Did you see
> http://incubator.apache.org/aries/blueprintannotation.html
> >
> > On 9/7/10 2:57 AM, Bengt Rodehav wrote:
> > > Is it possible to publish and consume blueprint services using
> > > annotations? I've been using iPojo in Karaf before which has been
> very
> > > convenient.
> > >
> > > /Bengt
> >
> >
>
>
Re: Blueprint and annotations
Posted by Justin Edelson <ju...@gmail.com>.
On 9/7/10 11:32 AM, Bengt Rodehav wrote:
> Justin,
>
> Yes I did actually see this but was unsure of its status. Is the
> annotations specified by OSGi or are they specific to Aries? I'm
> guessing the former which makes it interesting for portability reasons.
The Blueprint spec only covers XML. I would hope that the OSGi alliance
standardizes annotations.
>
> Functionality wise it is very similar to iPojo. However, iPojo does not
> seem related to blueprint at all (I might be wrong here) but seems to
> solve the same problem. iPojo, however, has a lot more functionality and
> also seems to be more mature.
You are free to use iPojo and Blueprint within the same application.
This is, to me, one of the best parts about OSGi - how a service is
published has no bearing on how it is consumed.
>
> Have you had any contact with Clement Escoffier at the Felix/iPojo
> project? Seems like iPojo would be a natural candidate for the blueprint
> annotation functionality. I'm a bit confused as to what path I should
> choose and also why there are two different paths regarding this within
> Apache.
There's more than 2 within Apache. :)
There's also an implementation of the Declarative Services spec in the
Felix project (Felix SCR). The Felix SCR Maven plugin supports
annotations at compile time to produce the DS descriptor file.
Justin
>
> Do you have more information on this matter?
>
> Also, what is the status of Aries blueprint annotation support? Is it
> being used in production? When will it be released?
>
> /Bengt
>
>
>
> 2010/9/7 Justin Edelson <justinedelson@gmail.com
> <ma...@gmail.com>>
>
> Did you see http://incubator.apache.org/aries/blueprintannotation.html
>
> On 9/7/10 2:57 AM, Bengt Rodehav wrote:
> > Is it possible to publish and consume blueprint services using
> > annotations? I've been using iPojo in Karaf before which has been very
> > convenient.
> >
> > /Bengt
>
>
Re: Blueprint and annotations
Posted by Bengt Rodehav <be...@rodehav.com>.
Justin,
Yes I did actually see this but was unsure of its status. Is the annotations
specified by OSGi or are they specific to Aries? I'm guessing the former
which makes it interesting for portability reasons.
Functionality wise it is very similar to iPojo. However, iPojo does not seem
related to blueprint at all (I might be wrong here) but seems to solve the
same problem. iPojo, however, has a lot more functionality and also seems to
be more mature.
Have you had any contact with Clement Escoffier at the Felix/iPojo project?
Seems like iPojo would be a natural candidate for the blueprint annotation
functionality. I'm a bit confused as to what path I should choose and also
why there are two different paths regarding this within Apache.
Do you have more information on this matter?
Also, what is the status of Aries blueprint annotation support? Is it being
used in production? When will it be released?
/Bengt
2010/9/7 Justin Edelson <ju...@gmail.com>
> Did you see http://incubator.apache.org/aries/blueprintannotation.html
>
> On 9/7/10 2:57 AM, Bengt Rodehav wrote:
> > Is it possible to publish and consume blueprint services using
> > annotations? I've been using iPojo in Karaf before which has been very
> > convenient.
> >
> > /Bengt
>
>
Re: Blueprint and annotations
Posted by Justin Edelson <ju...@gmail.com>.
Did you see http://incubator.apache.org/aries/blueprintannotation.html
On 9/7/10 2:57 AM, Bengt Rodehav wrote:
> Is it possible to publish and consume blueprint services using
> annotations? I've been using iPojo in Karaf before which has been very
> convenient.
>
> /Bengt