Re: [wsrp-interfaces] New Import Export document

[Subbu Allamaraju <subbu@bea.com>]

Rich,

You mention cross-producer import/export below. I wonder if such 
import/export is practical since there is no way for the consumer to 
know that the second producer offers the same (code + data) portlet 
(even if the exporting producer was able to encapsulate such information 
in the binary state).

Subbu

Rich Thompson wrote:

> 
> The main difference I see between such an operation and the proposed 
> export/import is that the operation references the current state of a 
> portlet while export/import proposal captures a snapshot and then looks 
> to recreate it. For some of the use cases, I think this is an important 
> difference.
> 
> I would suggest we not get involved in scenarios involving a migration 
> of the Producer as well. How would a Consumer, in general, learn the 
> following scenario relative to Portlets exported from Producer1:
> - PortletA may be imported to Producer 2, but not Producer3
> - PortletB may be imported to Producer3, but not Producer2
> - None of the exported portlets may be imported to ProducerN
> 
> With the opaque nature of exportedState, Producers can easily store 
> enough information to allow automation of such cross-Producer (same 
> vendor implementation) imports. Out-of-band communication to the 
> Consumer of which portlets a different Producer is able to import seems 
> appropriate for our protocol (at least until other deployment protocols 
> get defined that we could leverage).
> 
> Rich
> 
> 
> *Andre Kramer <andre.kramer@eu.citrix.com>*
> 
> 07/22/2004 06:45 AM
> 
> 	
> To
> 	"'Michael Freedman'" <Michael.Freedman@oracle.com>, interfaces 
> <wsrp-interfaces@lists.oasis-open.org>
> cc
> 	
> Subject
> 	RE: [wsrp-interfaces] New Import Export document
> 
> 
> 	
> 
> 
> 
> 
> 
> As Exporting / Importing state has privacy and reliability issues, how 
> far would the following operation go in covering the use cases?
>  
> PortletHandle newHandle = copyPortlet(PortletHandle thePortlet, 
> RegistrationHandle fromRegistration, RegistrationHandle toRegistration);
>  
> This would normally be called by a wsrp consumer (e.g. when a staged 
> deployment goes live). I've purposely not included our portletState to 
> show that no data need be passed outside of the producer(s). Two 
> producers could pass portlet data between themselves (using a 
> proprietary API or the proposed Export/Import mechanism) if the 
> registrations are on different producers.
>  
> Regards,
> Andre
>  
> 
> ------------------------------------------------------------------------
> 
> *From:* Michael Freedman [mailto:Michael.Freedman@oracle.com] *
> Sent:* 22 July 2004 01:46*
> To:* interfaces*
> Subject:* [wsrp-interfaces] New Import Export document
>  
> I have rewritten the original strawman to define specific import/export 
> methods.  It has been _uploaded to the Interfaces documents_ 
> <http://www.oasis-open.org/apps/org/workgroup/wsrp-interfaces/download.php/7861/Import_Export2.html>. 
>  If you want to refer to the old version click on "Manage" to the far 
> right of the document entry.  This takes you to a page where you can see 
> the previous revision(s).
>     -Mike-