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From "Mattmann, Chris A (388J)" <chris.a.mattm...@jpl.nasa.gov>
Subject Re: Query-Servlet-XML-RPC
Date Sat, 14 Jan 2012 01:44:09 GMT
Hi BW,

It's certainly wired to web-grid's REST end-point, yes. Is 
that what you mean?

Cheers,
Chris

On Jan 13, 2012, at 7:59 AM, B W wrote:

> But, isn't the web service endpoint for a query producer wired to
> QueryServlet.java?
> 
> BW
> 
> On Jan 12, 2012, at 8:53 PM, "Mattmann, Chris A (388J)"
> <chris.a.mattmann@jpl.nasa.gov> wrote:
> 
>> Hi BW:
>> 
>> In the current model, it's not done at all. The QueryServlet doesn't really exist
>> since the advent of Web-Grid for the information integration components:
>> 
>> http://oodt.apache.org/components/maven/grid/
>> 
>> Check out the slides from Sean Kelly on that site, that describes web grid.
>> Basically instead of the query server/servlet, we opted for a more REST
>> service oriented style where users consume profile and product server
>> end points via the Web Grid substrate.
>> 
>> Does that help?
>> 
>> Cheers,
>> Chris
>> 
>> On Jan 12, 2012, at 8:50 PM, B W wrote:
>> 
>>> Correct me if I'm wrong, an initial query is posted via a user agent
>>> browser to a servlet for the Query Service then:
>>> The messaging layer broadcasts the query to registered Profile Services
>>> that are running?
>>> Is this done via XML-RPC or posting to the servlets on the Profile Servers?
>>> 
>>> 
>>> I'm trying to figure out the whole thread.
>>> 
>>> Thx.
>>> 
>>> On Thu, Jan 12, 2012 at 8:22 PM, Mattmann, Chris A (388J) <
>>> chris.a.mattmann@jpl.nasa.gov> wrote:
>>> 
>>>> Hey Sean,
>>>> 
>>>>> 
>>>>> The ebXML model is one of the least egregious for a registry that I've
>>>> seen, and believe me, I've seen some nasty ones. But what makes JPL's
>>>> implementation so compelling is its JSON-esque and ReST-ful based API,
>>>> which, as far as I can tell, is totally original within the ebXML & OASIS
>>>> worlds.
>>>>> 
>>>>> Normally I turn my nose up to heavy-handed models with entrenched APIs,
>>>> but the singular achievement of JPL is to make the ebXML model, which
>>>> conceptually isn't byzantine, actually usable, approachable, and extendable.
>>>> 
>>>> Super +1.
>>>> 
>>>>> 
>>>>> Is there any hope we can get JPL, Caltech, and NASA to give it up to
>>>> become part of OODT? Or its own Incubator project?
>>>> 
>>>> I think Hardman is working on it, he can feel free to comment (or not)
>>>> here ^_^
>>>> 
>>>> Cheers,
>>>> Chris
>>>> 
>>>> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>>>> Chris Mattmann, Ph.D.
>>>> Senior Computer Scientist
>>>> NASA Jet Propulsion Laboratory Pasadena, CA 91109 USA
>>>> Office: 171-266B, Mailstop: 171-246
>>>> Email: chris.a.mattmann@nasa.gov
>>>> WWW:   http://sunset.usc.edu/~mattmann/
>>>> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>>>> Adjunct Assistant Professor, Computer Science Department
>>>> University of Southern California, Los Angeles, CA 90089 USA
>>>> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>>>> 
>>>> 
>> 
>> 
>> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>> Chris Mattmann, Ph.D.
>> Senior Computer Scientist
>> NASA Jet Propulsion Laboratory Pasadena, CA 91109 USA
>> Office: 171-266B, Mailstop: 171-246
>> Email: chris.a.mattmann@nasa.gov
>> WWW:   http://sunset.usc.edu/~mattmann/
>> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>> Adjunct Assistant Professor, Computer Science Department
>> University of Southern California, Los Angeles, CA 90089 USA
>> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>> 


++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Chris Mattmann, Ph.D.
Senior Computer Scientist
NASA Jet Propulsion Laboratory Pasadena, CA 91109 USA
Office: 171-266B, Mailstop: 171-246
Email: chris.a.mattmann@nasa.gov
WWW:   http://sunset.usc.edu/~mattmann/
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Adjunct Assistant Professor, Computer Science Department
University of Southern California, Los Angeles, CA 90089 USA
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++


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