[Fiware-ngsi] Issues in the NGSI OMA spec

[Moltchanov Boris]

Hi Fermín,

I believe that the subscribeContextAvailability lets know to the subscribed part that the subscribed context is available. That is, simple as it is :). While updateContextAvSub is an update to prolong or shorten this subscription.

SubscriptionIDs are needed to point which subscriptions handle in the respective operations you've listed.

I'm not sure, therefore keep silence :), for the last case you've mentioned (blank).

There is the only spec you pointed of this Enabler in OMA. No evolutions, as far as no one, as far as know, fully implemented it and let it know to OMA. Thus, why for to evolve, if no usage. The FI-WARE is probably first exercise to do get it alive and hopefully our experience bad or good will be reported to OMA jointly with FI-WARE partners involved there and improving / evolving the NGSI Enabler spec - this was an intention of FI-WARE.

Best Regards,
Boris

From: fiware-ngsi-bounces at lists.fi-ware.eu [mailto:fiware-ngsi-bounces at lists.fi-ware.eu] On Behalf Of Fermin Galan Marquez
Sent: Tuesday, January 29, 2013 12:01 PM
To: fiware-ngsi at lists.fi-ware.eu
Subject: [Fiware-ngsi] Issues in the NGSI OMA spec

Hi,

We have found some (apparent) typos in the NSGI OMA spec referred from FIWARE wiki pages (Candidate Version 1.0, August 3rd 2010) that we will like to expose to the group in order to know your opinion. Again, sorry if this has been already discussed previously to October 2012.

 *   Section 5.3.3.1: SubcriptionId is allowed in subscribeContextAvailability. What would be the purpose of this, taking into account that an updateContextAvailabilitySubscription operation is available? (In this sense, this is different from registerContext in 5.3.1.1, where it make sense to include RegistrationId for updates)
 *   Section 5.3.4.1: SubscriptionId shall be mandatory (otherwise, there is no way of knowing which subscription to update)
 *   Section 5.3.4.1: SubscriptionId shall be mandatory (otherwise, there is no way of knowing which subscription to cancel)
 *   Section 5.3.6.1: ErrorCode has a "blank" in Part Type and Optional cells
Moreover, this version of NGSI seems quite old (August 3rd 2010) and doesn't seem to be a final version (given that "Candidate" reads in the name). Do you know if there is any other more recent version, please?

Thanks!

Best regards,

------
Fermín

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