[Saga-devel] Context question

[Livesey, P (Paul)]

-----Original Message-----
From: Hartmut Kaiser [mailto:hkaiser at cct.lsu.edu]
Sent: Tue 27/01/2009 15:42
To: Livesey, P (Paul); saga-devel at cct.lsu.edu
Subject: RE: [Saga-devel] Context question
 
>> Further to your email from last week one further question.  If I needed
>> vector attributes on my context (which I do) how would stage 4 below
>> work?  I presume that vector attributes are allowed.
>
>Ohh well. I didn't even think about that yet. So it's currently not
>supported. But I think it should be easy enough to add. What's your timeline
>on this?
>
>Regards Hartmut
>
Hi Hartmut,

The obvious answer is as soon as possible as this is rather integral to our service discovery design!
We could use many named atrributes, i.e VO_COUNT and VO1, VO2, VO3, ..., VOCOUNT but that's not nice. 

On a related topic, I've spent this afternoon trying to get my context working but to no avail.
Now I'm pretty sure that I've followed your instructions to the letter, having basically copied what default advert adaptor does.

My test harness reads

int main(int argc, char** argv)
{
   saga::context ctx("glite_sd_adaptor");

   ctx.set_attribute("Identity", "bob");
   ctx.set_attribute("VOs", "PAUL VO");
   ctx.set_attribute("FQANs", "PAUL FQAN");
   saga::session s;
   s.add_context(ctx);
   saga::sd::discoverer sd(s);
   return 0;
}

but it dies after line 1 with the following

terminate called after throwing an instance of 'saga::bad_parameter'
  what():  SAGA(BadParameter):
  SAGA(BadParameter): default_cpr: Can't handle context types others than 'UserPass'
  SAGA(BadParameter): omii_gridsam_job: Can't handle context types others than 'omii_gridsam' (got: glite_sd_adaptor)
  SAGA(NoAdaptor): No adaptor succeeded in executing constructor for context_cpi

I've obviously missed something but I'm not sure what.  It looks like my context CPI is not being considered.  Is there something else I need to do?

Thanks,

Paul.
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