[MOBY] [MOBY-l] rundown of the use of UDDI, WSDL, SOAP, etc. in Moby

Michael Jensen michael at acutrans.net
Fri Dec 19 16:55:33 UTC 2003


Thank you! Very helpful.

So if MOBY Central is used then, what is it based on? RDF? Or is it  
just something put together?

Thanks!

-Michael


On Dec 19, 2003, at 8:58 AM, Mark Wilkinson wrote:

> Hi Michael,
>
> It's hard to answer your question given the code below, since you don't
> actually access a service anywhere in that code :-)
>
> For a variety of historical and other reasons, MOBY-S does not use UDDI
> as its registry - we have our own registry system called MOBY Central.
> There are people in the project who are considering whether it is
> practical/possible/desirable to port MOBY Central over to an underlying
> UDDI registry API, but that is not a high priority.
>
> MOBY-S does use WSDL... sort of... If you pursued your code for the  
> next
> 5 or 6 lines you would make a call to  
> retrieveService($ServiceInstance),
> and this returns a WSDL-compatible document which can be used to make
> client-side stubs to connect to the service.  This document, however,
> *does not* describe the actual message structure, since this cannot be
> predicted a priori (there is a lot of discussion about this in various
> places - just browse through the docs).  As such, it is not a 100%  
> valid
> WSDL document, but it can be consumed by WSDL parsers - certainly
> SOAP::Lite happily consumes it, and I believe the Java libraries also  
> do
> (Martin? Heiko?) in order to create objects representing SOAP
> connections.
>
> the next line in your code would be $s = MOBY::Service->new($wsdl);
> where you use the WSDL from the retrieveService call to create a  
> service
> connection, and then $s->execute(...input data here...)
>
> M
>
>
>
> On Thu, 2003-12-18 at 16:58, Michael Jensen wrote:
>> These perl modules have been great for not having to mess with
>> theunderlying protocols like SOAP. One question I have is where does
>> UDDIand WSDL fit in (if at all) and exactly where and when are they
>> beingused, say for instance I am using this script for finding all
>> theservices:
>>
>> useMOBY::Client::Central;
>> my $Central = MOBY::Client::Central->new();
>> my $types = $Central->retrieveServiceTypes();
>> print "Description of types of services\n\n";
>> foreach my $type (keys %{ $types} ) {
>>     print "Type: ", $type, " Description: ", $$types{$type}, "\n";
>>     my ($ServiceInstances, $RegObject)
>> =$Central->findService(serviceType  => $type);
>>     next if (not $ServiceInstances);
>>     foreach my $ServiceInstance (@{ $ServiceInstances } ){
>>         print "\t", $ServiceInstance->name;
>>         print " (", $ServiceInstance->authority, ")";
>>         print "\n\t", $ServiceInstance->description, "\n";
>>     }
>> }
>>
>> (Found
>> at:http://www.pasteur.fr/%7Eletondal/biomoby/biomoby-tutorial-perl- 
>> sol.html)
>>
>> Any resources, explanations, etc. would be greatly appreciated.
>> Thanks!
>>
>> -Michael
>> mdjgf8 at mizzou.edu
>>
>> ______________________________________________________________________
>> _______________________________________________
>> moby-l mailing list
>> moby-l at biomoby.org
>> http://biomoby.org/mailman/listinfo/moby-l
> -- 
> Mark Wilkinson <markw at illuminae.com>
> Illuminae
>
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