[rabbitmq-discuss] wct + pubsub

[Alexis Richardson]

Andrius,

On Thu, Sep 25, 2008 at 7:00 PM, Andrius Norkaitis
<Andrius.Norkaitis at oryo.lt> wrote:
> Hello,
>
> I read all documentation and played with sendstring and logtail examples and
> it's all much clearer now. I still don't find a way how to do pubsub with
> WCF service model.

OK.  Two things:

1) Are you able to do pubsub without using WCF, i.e. using C# on its own?
2) What kind of pubsub do you want to do?



> In sendstring example there are this line of code:
>
> ch.ExchangeDeclare(ticket, exchange, exchangeType);
>
> which specifies exchangeType (I specify topic type in my case).
> In RabbitMQ.ServiceModel implementation there is no such code so direct
> exchange is used (see RabbitMQInputChannel.cs and RabbitMQOutputChannel.cs)?

This code will use whatever exchange is at the endpoint which you need
to have declared beforehand.


> Any suggestion how to achieve logtail and sendtring with topic exchange
> functionality using WCF service model?

If you could send us some sample code of what you want to achieve then
it will be easier for us to help you efficiently.  Would that be
possible please?

alexis






> Thanks,
> Andrius
>
>
>
> -----Original Message-----
> From: alexis.richardson at gmail.com [mailto:alexis.richardson at gmail.com] On
> Behalf Of Alexis Richardson
> Sent: 2008.09.24 13:28
> To: Andrius Norkaitis
> Cc: rabbitmq-discuss at lists.rabbitmq.com
> Subject: Re: [rabbitmq-discuss] wct + pubsub
>
> Andrius
>
> On Wed, Sep 24, 2008 at 11:22 AM, Andrius Norkaitis
> <Andrius.Norkaitis at oryo.lt> wrote:
>> Thanks. I'll take close look at .NET Client documentation and try it.
>> I have looked at WCF examples already, but I still don't get how to
> achieve
>> pubsub using WCF.
>> I can use Duplex Services as example and create my own pubsub
> implementation
>> but in this case I would need to manage the list of subscribers with their
>> callback channels (and with multiple auto created queues of each
> subscriber
>> as I guess).
>> How to do pubsub with WCF using RabbitMQ exchanges and routing? Maybe it
> can
>> be achieved only using plain .NET client implementation and not WCF?
>
> You need to use a RabbitMQ topic exchange.  It does not matter whether
> you use the C# .NET client, or the full WCF integration, because both
> perform the same *underlying* AMQP action of publishing to an
> exchange.  It is the topic exchange and routing key that gives you the
> pubsub behaviour you want.  See the user guide for more info.
>
> alexis
>
>
>
>
>
>> Andrius
>>
>>
>> -----Original Message-----
>> From: alexis.richardson at gmail.com [mailto:alexis.richardson at gmail.com] On
>> Behalf Of Alexis Richardson
>> Sent: 2008.09.24 12:38
>> To: Andrius Norkaitis
>> Cc: rabbitmq-discuss at lists.rabbitmq.com
>> Subject: Re: [rabbitmq-discuss] wct + pubsub
>>
>> Andrius
>>
>>
>> On Wed, Sep 24, 2008 at 10:25 AM, Andrius Norkaitis
>> <Andrius.Norkaitis at oryo.lt> wrote:
>>> Hello,
>>>
>>> I'm .NET developer and want to implement pubsub in WAN using RabbitMQ.
>>> Publishers would publish orders and they must be delivered to all
>>> Subscribers which are online and matches  some criterions (etc. city,
>> order
>>> type). I wonder is RabbitMQ suitable for this? Can RabbitMQ do routing
> for
>>> me or should I implement pubsub myself?
>>
>> RabbitMQ can do this.  See the User Guide on the dotnet downoad page,
>> specifically section 3.3 for this case.
>>
>>
>>> Can this be done with WCF?
>>
>> Yes - the same web page provides a WCF guide as well ;-)
>>
>>
>>
>>> Any examples or other reference where can I start would be appreciated.
>>
>> Please try the above PDFs and let us know if you get stuck!
>>
>> alexis
>>
>>
>>
>>
>>
>>>
>>> Thanks for help in advance.
>>>
>>>
>>>
>>> Best regards,
>>>
>>> Andrius
>>>
>>>
>>>
>>> _______________________________________________
>>> rabbitmq-discuss mailing list
>>> rabbitmq-discuss at lists.rabbitmq.com
>>> http://lists.rabbitmq.com/cgi-bin/mailman/listinfo/rabbitmq-discuss
>>>
>>>
>>
>>
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>
>
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