[occi-wg] Message Queue on OCCI

Tue Aug 28 11:37:55 EDT 2012

 Hi,

 after few weeks of discussion we have an idea how we can combined our
services, message system and occi.

 The idea is, that we extend the OCCI interface with AMQP besides HTTP.
Then we can connect OCCI with an message bus. Table 1 shows what i mean
with extension. The different interfaces can combined with different OCCI
Dataformats.

 Picture 2 shows connection of OCCI, Service and Message Bus. Here we can
exchange AMQP/OCCI messages between the services.

 After i read the new OCCI JSON rendering document writen by Florian
Feldhaus and Ralf Nyren, i see the new changes about Actions. Actions are
now defined in action_category and instantiated in action. Thats a good
thing because now we can uses this action instance as messages and send
them via AMQP. 

 In combination with OCCI Mixins we can create a service specific
eventsystem were we can exchange messages between different services. In
this case the service provider can characterize there own service
interfaces as OCCI Mixin. He delivers the characterization with the
service to the platform. Both service and client use OCCI. The service
client can discover or use the interface and the service adapter
interprets the OCCI messages or send messages. So we can simple combine
provided services over OCCI (theoretical distributed over several
platforms).

Cheers
Maik

Am 01.08.12 15:05 schrieb "Alexis Richardson" unter <alexis at rabbitmq.com>:

>OK.
>
>It might be worth considering other examples, eg Amazon SQS/SNS...
>
>
>On Wed, Aug 1, 2012 at 1:36 PM, Srba, Maik <maik.srba at gwdg.de> wrote:
>> Hi,
>>
>> at the moment i see 4 actions here. One is "startlisten" to say OCCI
>>that
>> now the client will listen to the message queue and "stoplisten" to stop
>> listening. One other is "send" to request a message over OCCI to the
>> message queue that can listen by the application and at last i see
>> "receive" to ask OCCI if there are any new messages from the queue for
>>the
>> client.
>>
>> Cheers,
>> Maik
>>
>> ==================================================================
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>>
>>
>>
>>
>>
>>
>>
>> Am 01.08.12 13:48 schrieb "Alexis Richardson" unter
>><alexis at rabbitmq.com>:
>>
>>>Thanks Maik.
>>>
>>>What would be examples of "OCCI        forward the actions from the
>>>client to
>>>the     message queue"?
>>>
>>>alexis
>>>
>>>On Wed, Aug 1, 2012 at 12:40 PM, Srba, Maik <maik.srba at gwdg.de> wrote:
>>>> Hi Alexis,
>>>>
>>>> Thanks for your interest. I have attached a short summary where i
>>>>explain
>>>> what we will to.
>>>>
>>>> Cheers,
>>>> Maik
>>>>
>>>>
>>>> ==================================================================
>>>> GWDG - Gesellschaft für wissenschaftliche
>>>> Datenverarbeitung mbH Göttingen
>>>> Am Fassberg 11, 37077 Göttingen
>>>> Geschäftsführer: Prof. Dr. Ramin Yahyapour
>>>> Aufsichtsratsvorsitzender: Prof. Dr. Christian Griesinger
>>>> Sitz der Gesellschaft: Göttingen
>>>> Registergericht: Göttingen
>>>> Handelsregister-Nr. B 598
>>>> WWW: www.gwdg.de
>>>> ------------------------------------------------------------------
>>>> Fon: 0551 39-20364
>>>> Fax: 0551 201-2150
>>>> AG (e)Science
>>>> E-Mail: maik.srba at gwdg.de
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> Am 31.07.12 11:44 schrieb "Alexis Richardson" unter
>>>><alexis at rabbitmq.com>:
>>>>
>>>>>Maik,
>>>>>
>>>>>Do you have an API you can show us?  That is the best way to get
>>>>>started
>>>>>
>>>>>alexis
>>>>>
>>>>>On Mon, Jul 30, 2012 at 8:32 AM, Srba, Maik <maik.srba at gwdg.de> wrote:
>>>>>> Dear all,
>>>>>>
>>>>>> we currently think about expanding OCCI so it supports a message
>>>>>>queue
>>>>>> between client and service provider.
>>>>>> Our project contains simulation services in the cloud. For this we
>>>>>>need
>>>>>>a
>>>>>> communication between
>>>>>> client and simulation services. In one case it will be used to
>>>>>>transmit
>>>>>> control commands
>>>>>> and receive status changes. Inside our project, we use RabbitMQ for
>>>>>> messaging between
>>>>>> client and simulation services, and among the different simulation
>>>>>>service
>>>>>> components.
>>>>>>
>>>>>> If this message queue would be part of an OCCI implementation, we
>>>>>>could
>>>>>> realize our management tasks for
>>>>>> cloud simulation services via OCCI.
>>>>>>
>>>>>> It would be very nice to hear if somebody has already thought about
>>>>>>this or
>>>>>> could help collect ideas on
>>>>>> how such an OCCI Extension could look like.
>>>>>>
>>>>>> Cheers,
>>>>>> Maik
>>>>>>
>>>>>>
>>>>>> ==================================================================
>>>>>> GWDG - Gesellschaft für wissenschaftliche
>>>>>> Datenverarbeitung mbH Göttingen
>>>>>> Am Fassberg 11, 37077 Göttingen
>>>>>> Geschäftsführer: Prof. Dr. Ramin Yahyapour
>>>>>> Aufsichtsratsvorsitzender: Prof. Dr. Christian Griesinger
>>>>>> Sitz der Gesellschaft: Göttingen
>>>>>> Registergericht: Göttingen
>>>>>> Handelsregister-Nr. B 598
>>>>>> WWW: www.gwdg.de
>>>>>> ------------------------------------------------------------------
>>>>>> Fon: 0551 39-20364
>>>>>> Fax: 0551 201-2150
>>>>>> AG (e)Science
>>>>>> E-Mail: maik.srba at gwdg.de
>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> occi-wg mailing list
>>>>>> occi-wg at ogf.org
>>>>>> https://www.ogf.org/mailman/listinfo/occi-wg
>>>>>>
>>>>
>>>>
>>>> _______________________________________________
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>>

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