Loading rdf into stardog database

Support
1

I want to resolve this exception on loading rdf into database at

connection.add().io().format(RDFFormat.N3).stream(new FileInputStream(“c:/2Salles1.rdf”));

com.complexible.stardog.StardogException: There was a fatal failure during preparation of fe180f82-1d44-4df0-b6b0-caeb5ec45e61 org.openrdf.rio.RDFParseException: IRI included an unencoded space: ‘32’ [line 1]
at com.complexible.stardog.protocols.http.client.BaseHttpClient.checkResponseCode(BaseHttpClient.java:433)
at com.complexible.stardog.protocols.http.client.BaseHttpClient.execute(BaseHttpClient.java:304)
at com.complexible.stardog.protocols.http.client.HttpClientImpl.commit(HttpClientImpl.java:565)
at com.complexible.stardog.protocols.http.client.HttpClientImpl.commit(HttpClientImpl.java:93)
at com.complexible.stardog.api.impl.SPECConnection._commit(SPECConnection.java:261)
at com.complexible.stardog.api.impl.AbstractConnection.commit(AbstractConnection.java:207)
at com.complexible.stardog.api.impl.DelegatingConnection.commit(DelegatingConnection.java:111)
at test.star.dog.testSarDog.main(testSarDog.java:93)

someone has guided me to set DatabaseOptions.STRICT_PARSING
i.e., Control whether Stardog parses RDF strictly (true, the default) or loosely (false)

kindly help

2

You have an encoding issue with one of your URLs. You have a space where it should be urlencoded as %20.

You can find the offending lines with

grep '<.* .*>' "c:/2Salles1.rdf"

and replace the space with %20 by hand or use sed. I see you’re using windows so you’ll have to use Cygwin or the equivalent in powershell or whatever it is Windows people use to do something like that.

3

I have not fixed it. But when I upload it by web interface, it uploads the triple store from c:/2Salles1.rdf perfectly. But with java api it does not do so. I dont see any white spaces in URLs

4

I'm not sure if this will help, but Windows uses backslashes in file paths, so chances are good that you actually want new FileInputStream("c:\\2Salles1.rdf"). Especially since you say it loads fine in the webconsole, it seems like the problem could be in the java command itself.

5

thanks for your advice, but it has not worked. It just tried it but again the same error

6

Is your data set large/sensitive, or would you be able to share it here?

7

rdf file is not allowed to upload

8

I apologize for not noticing this earlier. You are attempting to upload an RDF/XML file, but the format you are passing in to the IO object is that of N-Triples. Instead of RDFFormat.N3, try RDFFormat.RDFXML.

1 Like
9

thanks dear stephen, it works very well.

thanks once again for your time and precious advice