The vm:// can't abstract endpoints over several installations.

On Oct 15, 2010, at 1:50 AM, Moulliard, Charles wrote:

> Hi,
> 
> The vm:// component of camel plays the same role as NMR to interconnect
> camel routes deployed in different bundles. So the added value of NMR in
> this case is very poor/limited. I don't think that we need anymore NMR in
> the future except if we have features present in NMR that camel cannot
> implement.
> 
> Charles
> 
> On Fri, Oct 15, 2010 at 9:25 AM, Johan Edstrom <seij...@gmail.com> wrote:
> 
>> +1
>> 
>> I'm often accused of being an NMR lover, the concept is great.
>> It is also something that sets it apart from say the hump.
>> 
>> /je
>> 
>> On Oct 15, 2010, at 1:14 AM, Guillaume Nodet wrote:
>> 
>>> On Thu, Oct 14, 2010 at 20:14, Adrian Trenaman <trena...@progress.com
>>> wrote:
>>> 
>>>> Bengt is spot on, and has beaten me to the post on this.
>>>> 
>>>> Here's my take:
>>>> 
>>>> * By definition, Karaf is a pure, generic container for OSGi goodness.
>> Lets
>>>> keep it that way: clean and simple, and applicable in many settings.
>>>> 
>>>> * ServiceMix, as Guillaume points out, has a great reputation in the
>> area
>>>> of ESB and 'enterprise integration in general'. It should evolve to
>> provide
>>>> all the smarts that pull in Camel, CXF, ActiveMQ and other great
>> integration
>>>> kits over Karaf into one deployment runtime that is absolutely focused
>> on
>>>> solving the problem of enterprise integration.
>>>> 
>>>> * While JBI adoption is on the decline, the ServiceMix NMR is a great
>>>> device for high-perf, in-memory, inter-bundle asynchronous
>> communication. We
>>>> should continue to bring this goodness forward.
>>>> 
>>> 
>>> While I think there is some value in the NMR, I'm quite not sure about
>>> having to maintain an API which is really similar as the Camel one.  i
>> think
>>> that slight modifications to Camel could bring it to the same level as
>> the
>>> NMR, so I'm wondering if we should try to enhance camel to provide the
>>> missing feature we need.
>>> AFAIK, there are a few connectors for the NMR, such as the camel one and
>> the
>>> CXF one, but CXF has a clean integration in Camel already, so I'm not
>>> entirely sure if the cxf/nmr one is needed.   Obviously, the camel one
>> would
>>> be useless if we switch to Camel.
>>> 
>>> I think another key problem would be the integration of technologies such
>> as
>>> Ode (BPEL) which heavily rely on WSDL descriptions.   Camel is a bit poor
>> at
>>> describing endpoint as WSDL.  Camel also does not offer a way to expose
>>> endpoints on something that would look like a protocol agnostic bus:
>>> endpoints are internal to routes.    I guess we'd need to discuss such
>>> things with the Camel community, but I think the value of the NMR could
>> be
>>> refactored into Camel.  The NMR concept is nice, I'm just challenging the
>>> need of a different API for it.
>>> 
>>> Not sure though ...
>>> 
>>> 
>>> 
>>>> * While I feel 'deprecate' may be too strong a word for the classic JBI
>>>> stuff, I do think we need to promote Camel wherever we can and void user
>>>> distraction into difficult areas of JBI. So, if deprecation is what is
>>>> called for, then let's make it so.
>>>> 
>>>> Best,
>>>> Ade.
>>>> 
>>>> 
>>>> On 14/10/2010 19:09, Bengt Rodehav wrote:
>>>> 
>>>>> Very interesting post Guillaume,
>>>>> 
>>>>> I have the exact same experience that you describe. A few years ago we
>>>>> started using ServiceMix as an ESB. The JBI support (and the hope that
>> it
>>>>> would become a "standard") was one of the important reasons for this.
>>>>> 
>>>>> JBI in itself turned out to be unnecessary complex and since JBI hasn't
>>>>> caught on at all it is not a compelling reason for us anymore. I
>> started
>>>>> to
>>>>> look at ServiceMix 4 as a good, OSGi based, deployment container. As an
>>>>> integration platform we turned to Camel - exactly as you described.
>> Camel
>>>>> is
>>>>> much easier to use and has many more supported components. A pretty
>> good
>>>>> combination I thought. Then Karaf came along which was a much better
>> fit
>>>>> for
>>>>> us since we merely used ServiceMix 4 as a deployment container. The
>>>>> combination of Karaf and Camel is a very compelling platform and I like
>> it
>>>>> a
>>>>> lot.
>>>>> 
>>>>> I still follow the development of ServiceMix (we still have a
>> ServiceMix 3
>>>>> application in production) but I'm not at all sure what is being
>> targeted.
>>>>> Is it an integration platform? A deployment container?
>>>>> 
>>>>> I think Karaf is better suited for pure deployment and Camel is better
>>>>> suited for integration purposes. However, I think there is a need for
>>>>> something more complete than Karaf in terms of integrating other open
>>>>> source
>>>>> projects (like Camel, Karaf, Aries, OpenJPA...). I think many use
>>>>> ServiceMix
>>>>> (and Karaf+Camel) as an ESB or integration platform. But, I have a
>> hunch
>>>>> (since I'm exploring it myself) that it could also be an option for
>>>>> "normal"
>>>>> enterprise applications (kind of like an application server).
>>>>> 
>>>>> One of the problems I encounter is to integrate various versions of all
>>>>> the
>>>>> open source projects I use. Currently I'm waiting for Camel 2.5 and
>> iPOJO
>>>>> 1.8. Prior to that I needed a Karaf 2.x version. But all of these
>> projects
>>>>> are not always coordinated and it's quite a big job to find your own
>>>>> working
>>>>> "version mix". ServiceMix could take that on. It would mean creating a
>>>>> larger stack (larger than only Karaf) of enterprise/integration
>> software
>>>>> components that would be tested together.
>>>>> 
>>>>> Just a thought..
>>>>> 
>>>>> /Bengt
>>>>> 
>>>>> 
>>>>> 2010/10/14 Guillaume Nodet<gno...@gmail.com>
>>>>> 
>>>>> I've had an interesting discussion today with jbonofre about ServiceMix
>>>>>> future so I think we should get that on the dev list, hence this mail
>> to
>>>>>> start the discussion.   I've heard more and more people wondering
>> about
>>>>>> the
>>>>>> value in ServiceMix compared to Karaf + Camel for example.  I wonder
>> what
>>>>>> your feedback is, how you feel about the future of ServiceMix and what
>> we
>>>>>> should do as a community.
>>>>>> 
>>>>>> As for my personal opinion, I think ServiceMix has a very strong brand
>> as
>>>>>> an
>>>>>> open source ESB, but since ServiceMix 4.x, people tend to be confused
>>>>>> about
>>>>>> it.  I think there are several path forward.
>>>>>> The first thing to state is that the JBI spec did not fulfill its
>>>>>> promises.
>>>>>> For various reasons (mostly political I think), the specs has not been
>>>>>> backed by enough big vendors.   JBI 2.0 will never happen so the JBI
>> spec
>>>>>> is
>>>>>> kinda dead.  The second fact is that more and more users tend to start
>>>>>> new
>>>>>> projects directly with Camel for a lot of valid reasons, mainly its
>> ease
>>>>>> of
>>>>>> use and tons of connectors.  That does not mean they don't use
>> ServiceMix
>>>>>> as
>>>>>> the runtime, just that they tend to let aside some features such as
>> the
>>>>>> JBI
>>>>>> or NMR layer.
>>>>>> Given those facts, I think one possible future would be to officially
>>>>>> deprecate the JBI layer and components (i.e. maintaining those for
>>>>>> compatibility, but not necessarily add new features) and focus on more
>>>>>> value
>>>>>> added such as better integration with third party projects (Ode, Hise,
>>>>>> etc...) and maybe more tooling (monitoring, etc...).
>>>>>> 
>>>>>> Anyway, it's just my personal opinion and feedback, but i'd like to
>> here
>>>>>> what other think about that, so that we can move forward.  I'm sure
>> there
>>>>>> are a lot of different ways for ServiceMix' future, but the most
>>>>>> important
>>>>>> thing to me is to come up with a clear position that we all agree on
>> and
>>>>>> be
>>>>>> in a better position to move forward and bring ServiceMix to the next
>>>>>> level.
>>>>>> 
>>>>>> 
>>>>>> --
>>>>>> Cheers,
>>>>>> Guillaume Nodet
>>>>>> ------------------------
>>>>>> Blog: http://gnodet.blogspot.com/
>>>>>> ------------------------
>>>>>> Open Source SOA
>>>>>> http://fusesource.com
>>>>>> 
>>>>>> 
>>> 
>>> 
>>> --
>>> Cheers,
>>> Guillaume Nodet
>>> ------------------------
>>> Blog: http://gnodet.blogspot.com/
>>> ------------------------
>>> Open Source SOA
>>> http://fusesource.com
>> 
>> Johan Edstrom
>> 
>> j...@opennms.org
>> 
>> They that can give up essential liberty to purchase a little temporary
>> safety, deserve neither liberty nor safety.
>> 
>> Benjamin Franklin, Historical Review of Pennsylvania, 1759
>> 
>> 
>> 
>> 
>> 
>> 

Johan Edstrom

j...@opennms.org

They that can give up essential liberty to purchase a little temporary safety, 
deserve neither liberty nor safety.

Benjamin Franklin, Historical Review of Pennsylvania, 1759





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