Emilio,
TDBFactory.createDataset() creates an in-memory TDB backed dataset which
is very useful for testing.
More inline:
On 24/05/13 14:42, Emilio Miguelanez wrote:
Hi Andy,
Hi Emilio,
Plain new FileManager() is going to return an FileManager object with no
handlers. FileManager.get() is the standard configured one. Could you try that
please?
I have tried and it works
If that's OK, then I'm not clear what's going on without a test case
(details seem to matter) Could you turn this into a standalone test case?
One immediate thing to try - could you put RIOT.init() as the first line
of the program? I can't see how it would be missed but we're in the
"details matter" zone.
For testing:
TDBDataset.createDataset() ;
is a faithful TDB system using a RAM-disk but otherwise is fully the
same as using a disk DB. Very helpful for testing.
What does f.getAbsolutePath() return? There may be drive letter confusion
going on.
Return true.
And the string?
Does
String fn = "/Users/emiguelanez/sb.work/sb.dev/onto-db/ont-seed/target.owl" ;
RDFDataMgr.readModel(bModel, fn) ;
work?
Yes, it works too.
So it's something to do with the imports but I can't see what it might be.
RDFDataMgr.readModel is newer preferred style - it's using the same machinary
as FileManager.
So, how can I translate into my original code?
No need - it's to replace FileManager in the test cases.
Dataset ds = TDBFactory.createDataset(repoDir) ;
Model bModel = ds.getDefaultModel();
OntModel aModel = ModelFactory.createOntologyModel(spec,
bModel);
FYI, I have tested this code with all previous version of apache-jena and it
works. It only fails in the latest one.
Not in 2.10.0? Useful to know.
And I am not using Windows either
Ack
Cheers,
Emilio
Andy (not a Windows user)
On 24/05/13 13:08, Emilio Miguelanez wrote:
Hello all,
I have some issues reading from a local file.
The details are as follows:
— Using latest version: apache-jena-2.10.1
— Main owl file imports local file, as follows
<owl:Ontology rdf:about="">
<owl:imports
rdf:resource="file:///Users/emiguelanez/sb.work/sb.dev/onto-db/ont-seed/target.owl"/>
</owl:Ontology
— TDB is creating using ./tdbloader2, loading main owl file
— In the application, the following code fails
Dataset ds = TDBFactory.createDataset(repoDir) ;
Model bModel = ds.getDefaultModel();
OntModel aModel = ModelFactory.createOntologyModel(spec,
bModel);
given the following exception, triggered at the creation of the OntModel
[com.hp.hpl.jena.ontology.OntDocumentManager] :: An error occurred while
attempting to read from
file:///Users/emiguelanez/sb.work/sb.dev/onto-db/ont-seed/target.owl. Msg was
'Not found:
file:///Users/emiguelanez/sb.work/sb.dev/onto-db/ont-seed/target.owl'.
com.hp.hpl.jena.shared.NotFoundException: Not found:
file:///Users/emiguelanez/sb.work/sb.dev/onto-db/ont-seed/target.owl
at
com.hp.hpl.jena.util.FileManager.readModelWorker(FileManager.java:399)
at com.hp.hpl.jena.util.FileManager.readModel(FileManager.java:345)
at com.hp.hpl.jena.util.FileManager.readModel(FileManager.java:329)
at
com.hp.hpl.jena.ontology.OntDocumentManager.read(OntDocumentManager.java:1061)
— I have done two tests:
++ Test 1: run the following code
File f = new
File("/Users/emiguelanez/sb.work/sb.dev/onto-db/ont-seed/target.owl");
logger.info(f.exists()); // prints "true"
new FileManager().readModel(bModel, f.getAbsolutePath());
logger.info("Done");
and fails
++ Test 2: run the following code
File f = new
File("/Users/emiguelanez/sb.work/sb.dev/onto-db/ont-seed/target.owl");
logger.info(f.exists()); // prints "true"
bModel.read(new FileInputStream(f),"");
logger.info("Done");
and succeed.
I could include the code from the second test into the application, but I don't
want to include file directories into the code.
Any ideas what is happening?
Cheers,
Emilio
--
Emilio Migueláñez Martín
[email protected]
--
Emilio Migueláñez Martín
[email protected]
