[Tdwg-guid] Simple LSID resolver
Roderic Page
r.page at bio.gla.ac.uk
Thu Jun 15 12:56:12 CEST 2006
Dear Kevin,
The reasons against doing what you suggest (which I agree works in most
cases) are:
1. An LSID with authority example.org need not be handled by
example.org. For example, ipni.org resolves to
http://beta.ipni.org:9090
2. You're assuming that we're all going to use port 80, whereas some
may serve metadata and data over a different port (e.g., IPNI use
9090).
3. I feel having a standard prefix before the LSID that remains the
same makes it easier for people to remember (i.e., we don't have to
think, "gee, so what bit of the LSID to I extract, and what was that
mumbo jumbo I stick on the end?"). Probably we should make it even
simpler by grabbing a short domain name to make it even easier.
Remember, DOIs make it simple - just tack the DOI onto the end of
http://dx.doi.org, and it's resolved.
Regards
Rod
On 15 Jun 2006, at 10:32, Kevin Richards wrote:
> The theory is that most lsid resolvers/authorities will implement the
> http get protocol for resolving lsids.
> This means that:
>
> http://example.org/authority/?lsid=urn:lsid.... will return the wsdl
> equivalent to the getAvailableServices SOAP call
>
> http://example.org/authority/data/?lsid=urn:lsid... will return the
> data
> for that lsid
>
> http://example.org/authority/metadata/?lsid=urn:lsid... will return the
> metadata for that lsid
>
> so why not just use these urls if you want to use urls?
>
> Kevin
>
>>>> Roderic Page <r.page at bio.gla.ac.uk> 06/15/06 10:13 AM >>>
> Dear Steve,
>
> It's written in PHP, and is basically a cleaner version of the LSID
> test. I developed it on my iBook running Apache and PHP 4.3.10, and
> deployed it on Fedora Core 4 with PHP 5. I've not tested it on Windows,
>
> the issue would be whether the Net:DNS module I use to do the
> resolution also works on Windows (who in their right mind uses Windows
> as a server ;-)
>
> Yep, the error reporting is bad, but I could work on this. It tries to
> trap some errors and report them in XML, but I put it together when I
> should have been listening to the talks at GUID2, so it's a bit rough
> and ready.
>
> Having a HTTP GET service sounds like a good idea, if it helps people
> play with this stuff. Maybe it could be as simple as a convention that
> if the "LSID" lacks a namespace and id (i.e., is just the authority)
> the service returns metadata about the authority. For data, perhaps the
>
> prefix "data" could be inserted before the LSID, rather like a lot of
> static URLs have the format of the data embedded in them, such as
> http://www.connotea.org/rss/recent/user/rdmpage?q=Formicidae (an RSS
> feed).
>
> Not elegant, but simple.
>
> Regards
>
> Rod
>
>
> On 14 Jun 2006, at 17:07, Steven Perry wrote:
>
>> Hi Rod,
>>
>> This is pretty cool. What language is it in? What kind of server
>> does it require (application server, apache, etc.)?
>> When I tried to put in an LSID that I knew didn't exist, I got an XML
>
>> parsing error. No worries, since this is an early prototype, but I
>> was wondering if you're planning on trapping these kinds of errors and
>
>> returning an HTTP status code like 204 (NO_CONTENT), 404 (NOT_FOUND),
>
>> or 410 (GONE), or if you had something else in mind.
>>
>> I've also been thinking about an HTTP-GET based LSID resolution
>> gateway that might be exposed as a service. It could support several
>
>> additional functions besides (the default) getMetadata():
>>
>> getAuthorityInfo :: given an LSID, return information (in RDF) about
>> the authority extracted from the authority metadata
>> getData:: might work a bit differently from the spec in that it always
>
>> sends through HTTP and it tries to set the correct mime type.
>>
>> However getMetadata is the critical function and these others may not,
>
>> upon more reflection, make much sense.
>>
>> Given that we want to be able to integrate with existing semantic web
>
>> apps and tools that can't currently understand the LSID resolution
>> process, I think we'll come to depend upon these kinds of services.
>> They also provide convenience to developers who are working with
>> languages that don't yet have a resolution client API. It might be
>> nice to work out how such a service ought to behave and present it to
>
>> TAG.
>>
>> -Steve
>>
>>
>> Roderic Page wrote:
>>> It was good to see everybody who made it to sunny Edinburgh over the
>
>>> weekend.
>>>
>>> I've put together a very simple LSID resolver that returns RDF
>>> metadata for a LSID. I wanted something very simple, so all you do
>>> is stick your LSID on the end of http://lsid.zoology.gla.ac.uk/,
>>> e.g.
>>>
>>> http://lsid.zoology.gla.ac.uk/urn:lsid:ubio.org:namebank:2735664
>>>
>>> http://lsid.zoology.gla.ac.uk/urn:lsid:lsid.zoology.gla.ac.uk:
>>> predicate:isBasionymOf
>>>
>>> It's far from bullet proof, and not as pretty as other resolvers.
>>> However, it means you see the RDF straight away, and if you wanted to
>
>>> aggregate the RDF for a LSID you could use this to do the resolution
>
>>> for you.
>>>
>>> Regards
>>>
>>> Rod
>>>
>>>
>>>
> ----------------------------------------------------------------------
>>> -- ----------------------------------------
>>> Professor Roderic D. M. Page
>>> Editor, Systematic Biology
>>> DEEB, IBLS
>>> Graham Kerr Building
>>> University of Glasgow
>>> Glasgow G12 8QP
>>> United Kingdom
>>>
>>> Phone: +44 141 330 4778
>>> Fax: +44 141 330 2792
>>> email: r.page at bio.gla.ac.uk
>>> web: http://taxonomy.zoology.gla.ac.uk/rod/rod.html
>>> reprints: http://taxonomy.zoology.gla.ac.uk/rod/pubs.html
>>>
>>> Subscribe to Systematic Biology through the Society of Systematic
>>> Biologists Website: http://systematicbiology.org
>>> Search for taxon names:
> http://darwin.zoology.gla.ac.uk/~rpage/portal/
>>> Find out what we know about a species: http://ispecies.org
>>> Rod's rants on phyloinformatics: http://iphylo.blogspot.com
>>>
>>>
>>> _______________________________________________
>>> TDWG-GUID mailing list
>>> TDWG-GUID at mailman.nhm.ku.edu
>>> http://mailman.nhm.ku.edu/mailman/listinfo/tdwg-guid
>>>
>>
>>
>>
> -----------------------------------------------------------------------
> -
>
> ----------------------------------------
> Professor Roderic D. M. Page
> Editor, Systematic Biology
> DEEB, IBLS
> Graham Kerr Building
> University of Glasgow
> Glasgow G12 8QP
> United Kingdom
>
> Phone: +44 141 330 4778
> Fax: +44 141 330 2792
> email: r.page at bio.gla.ac.uk
> web: http://taxonomy.zoology.gla.ac.uk/rod/rod.html
> iChat: aim://rodpage1962
> reprints: http://taxonomy.zoology.gla.ac.uk/rod/pubs.html
>
> Subscribe to Systematic Biology through the Society of Systematic
> Biologists Website: http://systematicbiology.org
> Search for taxon names: http://darwin.zoology.gla.ac.uk/~rpage/portal/
> Find out what we know about a species: http://ispecies.org
> Rod's rants on phyloinformatics: http://iphylo.blogspot.com
>
>
>
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------------------------------------------------------------------------
----------------------------------------
Professor Roderic D. M. Page
Editor, Systematic Biology
DEEB, IBLS
Graham Kerr Building
University of Glasgow
Glasgow G12 8QP
United Kingdom
Phone: +44 141 330 4778
Fax: +44 141 330 2792
email: r.page at bio.gla.ac.uk
web: http://taxonomy.zoology.gla.ac.uk/rod/rod.html
iChat: aim://rodpage1962
reprints: http://taxonomy.zoology.gla.ac.uk/rod/pubs.html
Subscribe to Systematic Biology through the Society of Systematic
Biologists Website: http://systematicbiology.org
Search for taxon names: http://darwin.zoology.gla.ac.uk/~rpage/portal/
Find out what we know about a species: http://ispecies.org
Rod's rants on phyloinformatics: http://iphylo.blogspot.com
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