[Os-project-managers] Is this legal OSoL?

[Kipp Martin]

Hi Jun:

> I would vote not.
> The parser should be a bit more lenient here.
> I'd rather keep an empty ftp empty value.
> If it's not used, then it's fine.
> If it's used, the ftp client, i.e., the piece that handles the ftp 
> communication, will decide to continue, or throw an error or stop.

I don't feel strongly about this, but here is why I prefer an error. If 
we allow an empty string the ftp client may not throw and error, rather 
the ftp client may try to contact the server. In this case, instead of 
an error, we might get a time out message. We would not want to pass a 
time out message back to the user because this is misleading.

Cheers


> 
> Jun
> 
> --------------------------------------------------
> From: "Kipp Martin" <kmartin at chicagobooth.edu>
> Sent: Monday, January 03, 2011 1:31 PM
> To: "Horand Gassmann" <Horand.Gassmann at dal.ca>
> Cc: <Os-project-managers at list.coin-or.org>
> Subject: Re: [Os-project-managers] Is this legal OSoL?
> 
>> Hi Gus:
>>>
>>> I have a quick question about the OSoL. Is the following a legal entry?
>>>
>>> <contact transportType="ftp"></contact>
>>>
>>> I understand that this element does not make a lot of sense, but
>>> should I throw an error if the contact information is missing? Should
>>> there be something in the schema that says the element content must be
>>> a string of length at least 1?
>>>
>>> Please advise.
>>>
>>
>> My vote would be to throw an error. Clearly the user made an error and I
>> think it is good to throw an exception at this point rather than trying
>> to contact a server that does not exist.
>>
>> Cheers
>>
>>
>> PS -- I know there is an earlier email I still to respond to. I am
>> getting absolutely killed by email to day.
>>
>>
>>
>> -- 
>> Kipp Martin
>> Professor of Operations Research
>> and Computing Technology
>> Booth School of Business
>> University of Chicago
>> 5807 South Woodlawn Avenue
>> Chicago, IL 60637
>> 773-702-7456
>> kmartin at chicagobooth.edu
>> http://www.chicagobooth.edu/faculty/bio.aspx?person_id=12825325568
>> http://projects.coin-or.org/OS
>>
>> _______________________________________________
>> Os-project-managers mailing list
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>>


-- 
Kipp Martin
Professor of Operations Research
and Computing Technology
Booth School of Business
University of Chicago
5807 South Woodlawn Avenue
Chicago, IL 60637
773-702-7456
kmartin at chicagobooth.edu
http://www.chicagobooth.edu/faculty/bio.aspx?person_id=12825325568
http://projects.coin-or.org/OS