[Tellico-users] Re: Tellico Namespace Errors When Searching the Z39.50 ADS Server

[Nathan Clarke]

Hi Robby,

Well done and thank you for resolving this.  And from the email thread 
you referenced it seems that the ADS administrators have been notified 
of the bug/s, so hopefully they will fix it at their end, one day ... 
though I see the last post was Nov 2007, so maybe not...

I do not need to use this feature right away, but if I do, I'll try your 
script; otherwise I'll wait for the next release.

Thanks again.

Cheers,
Nathan


On 02/02/11 18:08, Robby Stephenson wrote:
> So here's what I can tell you. The XML returned from the ADS server is
> invalid, which is why Tellico was choking on it. Rather than trying to fix it
> up (which would be slightly ambiguous), I implemented a reader in Tellico
> for the native ADS format from their z39.50 server. I just checked it into
> the Tellico source tree so it'll be in the next release.
>
> For current releases, there doesn't appear to be a way to access the ADS
> through z39.50 in a standard way. You can try using the script I wrote,
> which grabs the bibtex data for searches, or you can just wait until Tellico
> 2.3.3 is out, which I could push by the end of the month, perhaps.
>
> For an email chain for the BibDesk app for Macs that deals with the same
> issue, see http://www.mail-archive.com/bibdesk-
> users at lists.sourceforge.net/msg01183.html
>
> Robby
>
> On Monday 31 January 2011, Nathan Clarke wrote:
>> Hi Robby,
>>
>> Thanks for taking some time to look at this.  The options I have are:
>>
>>     * Source type: z39.50 Server
>>     * The "Updating from source should overwrite user data" box is not
>> checked.
>>     * Available Fields boxes for Address, Abstract and Illustrator are
>> all checked (though I've tried various combinations of this to no
>> effect). * The "Use preset server" box is not checked.
>>     * Host: z3950.adsabs.harvard.edu
>>     * Port: 210
>>     * Database: AST
>>     * Character set: utf-8 (I've tried all of these to no effect too)
>>     * Format: MODS
>>     * User: [none set]
>>     * Password: [none set]
>>
>> Cheers,
>> Nathan
>>
>> On 31/01/11 22:02, Robby Stephenson wrote:
>>> Hi Nathan,
>>>
>>> I apologize for the late reply.
>>>
>>> You're right, it does appear to be a namespace issue. The z39.50
>>> searching goes through a somewhat complicated process of being
>>> converted from MODS to MARC to XML, so there are certainly plenty of
>>> points where the XSLT can get hairy.
>>>
>>> What are the options you're using for the ADS z39.50 target so I can do
>>> some testing myself? (database name, character set, etc.?)
>>>
>>> In the meantime, though it's not as flexible, you could take a shot
>>> using a script I wrote a while back, if you were interested.
>>> http://tellico-project.org/search-saonasa-astrophysics-data-system
>>>
>>> Robby
>>>
>>> On Wednesday 12 January 2011, Nathan Clarke wrote:
>>>> In Tellico's data source properties, I added a new Z39.50 data source
>>>> for the ADS Astronomy Database (hosted on z3950.adsabs.harvard.edu).
>>>> However, when I attempt to perform a search (using key words that I
>>>> know are in the ADS data base), I get no results, and in the shell
>>>> (from where I launched Tellico) I see lots of error messages of the
>>>> form below:
>>>>
>>>> namespace error : Namespace prefix dc on description is not defined
>>>> n>http://adsabs.harvard.edu/abs/2011AAS...21714304M</dc:relation><dc:d
>>>> esc ription
>>>>
>>>> I am no XML expert, but this appears to be some sort of XML namespace
>>>> issue.
>>>>
>>>> Can you offer any advice on this?  Is there any way that I can fix it?
>

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