Import RDF or OWL file from the Web

[PaulZH]

TBC ME 3.6.2 on Mac OSX

Import RDF or OWL file from the web:
source url: http://www.ontotext.com/proton/protonext
target file name: protonext.ttl

gives
"could not read from http://www.ontotext.com/proton/protonext".

Opening this file in a browser just works fine:

# Saved by TopBraid on Tue Feb 14 13:40:22 EET 2012
# baseURI: http://www.ontotext.com/proton/protonext
# imports: http://www.ontotext.com/proton/protonsys.ttl
# imports: http://www.ontotext.com/proton/protontop.ttl
# imports: http://www.ontotext.com/proton/protonkm.ttl

In the log
!ENTRY org.topbraid.eclipsex 4 0 2012-11-12 10:50:55.330
!MESSAGE ERROR [ModalContext] (RDFDefaultErrorHandler.java:59) - http://www.ontotext.com/proton/protonext(line 1 column 1): Content is not allowed in prolog.
 

Paul

[Holger Knublauch]

On 11/12/2012 19:51, PaulZH wrote:
> TBC ME 3.6.2 on Mac OSX
>
> Import RDF or OWL file from the web:
> source url: http://www.ontotext.com/proton/protonext
> target file name: protonext.ttl

This expects RDF/XML format, not Turtle. You will need to manually
download it for now.

Holger

[PaulZH]

Holger,

Any input if and when this is on the roadmap?

[Scott Henninger]

Paul;  It is good enhancement request, and is on our list.  We'll make sure we get tot his soon.

-- Scott

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[Simon Cox]

Yes - I was caught out myself on this a while back. I understand this is an expectation/limitation of the OWL-API. 

[Irene Polikoff]

OWL-API would have this limitation since it is not RDF based. This is not an issue for TopBraid. 

[Holger Knublauch]

Simon,

TopBraid uses the Jena API. The OWL API is used by Protege.

The reason why loading Turtle from the web isn't supported yet is simply that Turtle hasn't even been standardized until recently, and the vast majority of RDF files on the web was therefore in RDF/XML. This is changing now and we will certainly try to complete this for 4.3

Holger