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From Freeman Fang <freeman.f...@gmail.com>
Subject Re: Apache Karaf 2.3 - And spring in the out of the box features files
Date Sat, 05 Jan 2013 11:25:48 GMT
Hi Claus,

I'm +1 for this change, could you please file a jira to track it?
Thanks
-------------
Freeman(Yue) Fang

Red Hat, Inc. 
FuseSource is now part of Red Hat
Web: http://fusesource.com | http://www.redhat.com/
Twitter: freemanfang
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http://blog.sina.com.cn/u/1473905042
weibo: @Freeman小屋

On 2013-1-5, at 下午7:11, Claus Ibsen wrote:

> Hi
> 
> In the Apache Karaf 2.3.0 distribution, there is a standard features
> file which has a number of spring features.
> 
> Take a look in this file:
> http://repo2.maven.org/maven2/org/apache/karaf/assemblies/features/standard/2.3.0/standard-2.3.0-features.xml
> 
> Notice that there is 3 different spring versions supported
> - 2.5.6
> - 3.0
> - 3.1
> 
> The first two (2.5.6 and 3.0) have the same name "spring" but differs
> in the version attribute.
> And only Spring 3.1 has its own feature name "spring31".
> 
> This is a very unfortunately problem, as it makes it much header to
> re-use the Karaf features for
> referring to Spring.
> 
> So for example in Apache Camel we do that. But it makes it impossible
> for us to refer to Spring 3.1 as our choice.
> 
> Or better yet, we want to say
> <feature version="[3.1,4)">spring</feature>
> 
> eg to refer to the "spring" feature with the version range of Spring
> 3.1 or better.
> 
> Today we have to hardcode the name
> <feature version="[3.1,4)">spring31</feature>
> 
> So we can do this in Apache Camel, but then we are locked down on
> Spring 3.1. And people want to use Spring 3.2
> is left out in the dark.
> 
> And the 2nd problem is that when you install spring-dm, then you
> cannot pick the Spring version you want, but instead
> as it does it wrong:
> 
> <feature name="spring-dm" description="Spring DM support"
> version="1.2.1" resolver="(obr)">
> <feature version="[2.5.6,4)">spring</feature>
> 
> Notice that spring-dm refers to a feature with the name "spring". But
> Karaf only offers this name as Spring 2.5 or 3.0.
> So if you install spring-dm you force installing Spring 3.0 also.
> 
> So that mean you end up having both Spring 3.0 and 3.1. And that is
> not what you want.
> 
> [  60] [Active     ] [            ] [       ] [   50] camel-core
> (2.11.0.SNAPSHOT)
> [  61] [Active     ] [Created     ] [       ] [   50]
> camel-karaf-commands (2.11.0.SNAPSHOT)
> [  62] [Active     ] [Created     ] [       ] [   50] camel-blueprint
> (2.11.0.SNAPSHOT)
> [  63] [Active     ] [            ] [       ] [   30] Apache
> ServiceMix :: Bundles :: aopalliance (1.0.0.6)
> [  64] [Active     ] [            ] [       ] [   30] Spring Core
> (3.1.2.RELEASE)
> [  65] [Active     ] [            ] [       ] [   30] Spring ASM (3.1.2.RELEASE)
> [  66] [Active     ] [            ] [       ] [   30] Spring
> Expression Language (3.1.2.RELEASE)
> [  67] [Active     ] [            ] [       ] [   30] Spring Beans
> (3.1.2.RELEASE)
> [  68] [Active     ] [            ] [       ] [   30] Spring AOP (3.1.2.RELEASE)
> [  69] [Active     ] [            ] [       ] [   30] Spring Context
> (3.1.2.RELEASE)
> [  70] [Active     ] [            ] [       ] [   30] Spring Context
> Support (3.1.2.RELEASE)
> [  71] [Active     ] [            ] [       ] [   30] Spring
> Transaction (3.1.2.RELEASE)
> [  72] [Active     ] [            ] [       ] [   80]
> geronimo-jta_1.1_spec (1.1.1)
> [  73] [Active     ] [            ] [       ] [   30] Spring Core
> (3.0.7.RELEASE)
> [  74] [Active     ] [            ] [       ] [   30] Spring ASM (3.0.7.RELEASE)
> [  75] [Active     ] [            ] [       ] [   30] Spring
> Expression Language (3.0.7.RELEASE)
> [  76] [Active     ] [            ] [       ] [   30] Spring Beans
> (3.0.7.RELEASE)
> [  77] [Active     ] [            ] [       ] [   30] Spring AOP (3.0.7.RELEASE)
> [  78] [Active     ] [            ] [       ] [   30] Spring Context
> (3.0.7.RELEASE)
> [  79] [Active     ] [            ] [       ] [   30] Spring Context
> Support (3.0.7.RELEASE)
> [  80] [Active     ] [            ] [       ] [   30] Apache
> ServiceMix :: Bundles :: cglib (2.2.2.1)
> [  81] [Active     ] [            ] [       ] [   30] spring-osgi-io (1.2.1)
> [  82] [Active     ] [            ] [       ] [   30] spring-osgi-core (1.2.1)
> [  83] [Active     ] [            ] [       ] [   30]
> spring-osgi-extender (1.2.1)
> [  84] [Active     ] [            ] [       ] [   30]
> spring-osgi-annotation (1.2.1)
> 
> 
> 
> So I suggest that this is fixed so the Karaf features will use the
> name "spring" for all its spring features.
> And then use version ranges.
> 
> Then people can pick the spring version of choice.
> 
> And as Spring 3.2 is GA I also suggest to add that Spring as a version
> that comes out of the box.
> 
> 
> Would this be possible to fix in a Karaf 2.3.1 release?
> Otherwise we cannot offer easy of use with Karaf and Camel anymore.
> 
> 
> 
> -- 
> Claus Ibsen
> -----------------
> Red Hat, Inc.
> FuseSource is now part of Red Hat
> Email: cibsen@redhat.com
> Web: http://fusesource.com
> Twitter: davsclaus
> Blog: http://davsclaus.com
> Author of Camel in Action: http://www.manning.com/ibsen


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