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Re: struggling with ASK

From: Kingsley Idehen <kidehen@openlinksw.com>
Date: Tue, 29 Nov 2011 16:35:50 -0500
Message-ID: <4ED55036.1020100@openlinksw.com>
To: Henry Story <henry.story@bblfish.net>
CC: public-xg-webid@w3.org
On 11/29/11 4:24 PM, Henry Story wrote:
> On 29 Nov 2011, at 21:58, Kingsley Idehen wrote:
>>>> 	 	   		
>> Peter,
>>
>> SPARQL Protocol (Query Editor) URL: http://goo.gl/06apv .
>> SPARQL Protocol (Query Results) URL: http://goo.gl/3RTPW .
>>
>> SPARQL ASK text:
>>
>> PREFIX :<http://www.w3.org/ns/auth/cert#>
>> PREFIX xsd:<http://www.w3.org/2001/XMLSchema#>
>> ASK {
>> <http://id.myopenlink.net/about/id/entity/http/twitter.com/kidehen>  :key [
>> :modulus "9d25875087cb936da55dd036b89530a2d830ce72f378a3fcc2fe07174d74ef07aff2a552ef582bb57676d377daf3732ccc7cae810522dcdfce76e823cc297bad002b0d3ea42578ec00d2ae7354247420b9d708fce870679e22e5ecd49a149b41ea2f4eafdbc767bec673d088f98d1b12cd4a4997d362a4ed2ed5215c4c21072d079abdb2cc2da1a27563b86643ab6222019ae8f667a0b3548227af0ae526b13b5ecc431c11f6896e771010c959b5e6700605f95ff7f0fd3019f8e7ef2605f99a7b0095e7c9bb6e99825fda43d30a9c8baed0e35217c2cc61a81fc21dd500974f52deb6c1f784a603a989e4d5c421003d16978c23f62b4f4e027b7e4295fb6db7"^^xsd:hexBinary;
>> :exponent "65537"^^xsd:int;
>> ] .
>> }
> If that does it, then could it be that the version of SPARQL that Peter was using was not doing D-entailment between xsd:int and xsd:integer ?  Ie: it could be that Peter's Profile used xsd:int (as that is how I had written it out in the earlier spec) and the ASK query was written with the number written out with no datatype specification, i.e. that it is a pure xsd:integer.
>
> I should have upgraded all the RDF to use xsd:integer so that we minimise these types of issues until D-entailment works correctly everywhere. This type of thing is something Bergi should test for.
>
> Henry
>
>> -- 
>>
>> Regards,
>>
>> Kingsley Idehen	
>> Founder&   CEO
>> OpenLink Software
>> Company Web: http://www.openlinksw.com
>> Personal Weblog: http://www.openlinksw.com/blog/~kidehen
>> Twitter/Identi.ca handle: @kidehen
>> Google+ Profile: https://plus.google.com/112399767740508618350/about
>> LinkedIn Profile: http://www.linkedin.com/in/kidehen
>>
>>
>>
>>
>>
>>
> Social Web Architect
> http://bblfish.net/
>
>
Henry,

This also works:
PREFIX : <http://www.w3.org/ns/auth/cert#>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
ASK {
<http://id.myopenlink.net/about/id/entity/http/twitter.com/kidehen> :key [
:modulus 
"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"^^xsd:hexBinary;
:exponent "65537"^^xsd:integer;
] .
}

This works, but it makes specific use of Virtuoso's in-built functions. 
This option is useful when people copy and paste the modulus from 
keychain and other keystores with a UI front that leads to spaces in the 
modulus:

PREFIX : <http://www.w3.org/ns/auth/cert#>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
ASK {
<http://id.myopenlink.net/about/id/entity/http/twitter.com/kidehen> :key [
:modulus ?m ;
:exponent ?e ;
] .

filter (str (?m) = sql:FOAF_MOD ("9D 25 87 50 87 CB 93 6D A5 5D D0 36 B8 
95 30 A2 D8 30 CE 72 F3 78 A3 FC C2 FE 07 17 4D 74 EF 07 AF F2 A5 52 EF 
58 2B B5 76 76 D3 77 DA F3 73 2C CC 7C AE 81 05 22 DC DF CE 76 E8 23 CC 
29 7B AD 00 2B 0D 3E A4 25 78 EC 00 D2 AE 73 54 24 74 20 B9 D7 08 FC E8 
70 67 9E 22 E5 EC D4 9A 14 9B 41 EA 2F 4E AF DB C7 67 BE C6 73 D0 88 F9 
8D 1B 12 CD 4A 49 97 D3 62 A4 ED 2E D5 21 5C 4C 21 07 2D 07 9A BD B2 CC 
2D A1 A2 75 63 B8 66 43 AB 62 22 01 9A E8 F6 67 A0 B3 54 82 27 AF 0A E5 
26 B1 3B 5E CC 43 1C 11 F6 89 6E 77 10 10 C9 59 B5 E6 70 06 05 F9 5F F7 
F0 FD 30 19 F8 E7 EF 26 05 F9 9A 7B 00 95 E7 C9 BB 6E 99 82 5F DA 43 D3 
0A 9C 8B AE D0 E3 52 17 C2 CC 61 A8 1F C2 1D D5 00 97 4F 52 DE B6 C1 F7 
84 A6 03 A9 89 E4 D5 C4 21 00 3D 16 97 8C 23 F6 2B 4F 4E 02 7B 7E 42 95 
FB 6D B7") && xsd:integer(?e) = 65537)
}


Links:

1. http://goo.gl/hv4US -- SPARQL Protocol URL (results)
2. http://goo.gl/JGO6D -- SPARQL Protocol URL (query editor)
3. http://goo.gl/pXbQa -- SPARQL Protocol URL (results) for query using 
Virtuoso specific function
4. http://goo.gl/mlB4B -- SPARQL Protocol URL (query editor) for query 
using Virtuoso specific funtion.

-- 

Regards,

Kingsley Idehen	
Founder&  CEO
OpenLink Software
Company Web: http://www.openlinksw.com
Personal Weblog: http://www.openlinksw.com/blog/~kidehen
Twitter/Identi.ca handle: @kidehen
Google+ Profile: https://plus.google.com/112399767740508618350/about
LinkedIn Profile: http://www.linkedin.com/in/kidehen








Received on Tuesday, 29 November 2011 21:36:23 GMT

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