[Mulgara-general] load RDF/XML post

[Paul Gearon]

Hi,

Out of curiosity, what did the code print to the output? You should
have received an error code at the very least, though I'm disappointed
you didn't see a message. I'll check that out.

The error in your file is a space in a URI. Check out line 289:
<desc:Resource_Description
rdf:about="http://www.owl-ontologies.com/Ontology1254775929.owl#Gladstone_Flow_Cytometry_Core
">

Notice the space character at the end of the URI?

Meanwhile, I'll work to provide a descriptive response.

Regards,
Paul

On Tue, Oct 27, 2009 at 10:51 AM, Chuck Borromeo <cborromeo3 at yahoo.com> wrote:
> [Using Mulgara 2.1.4 binary dist]
>
> Hello,
>  I have developed some Java code to load an RDF file using Http POST.  I have been able to load over 30 RDF files using this method.  However, one of the files I attempt to load does not insert its data into the graph.  The URL for the problematic file is:
>
> http://hsresweb01.ucdmc.ucdavis.edu/RDF/UCSanFrancisco.rdf
> My code does not throw any error message.  I cannot find any errors in any of the mulgara logs files or the itql file.  I have opened the RDF file in the W3C RDF validator and the file appears valid.  Here are some files that load successfully:
>
> http://hsresweb01.ucdmc.ucdavis.edu/RDF/UWisconsinMadison.rdf
> http://hsresweb01.ucdmc.ucdavis.edu/RDF/Duke.rdf
> Here is my code (adapted from Paul Gearon) :
>    public String loadRDF(URL rdfURL, String graphname) {
>        HttpClient client = new DefaultHttpClient();
>
>        HttpPost post = new HttpPost(generateServerName());
>
>        client.getParams().setBooleanParameter(
>                CoreProtocolPNames.USE_EXPECT_CONTINUE, false);
>
>        try {
>            createGraph(graphname);
>            String data = "";
>            InputStream is = rdfURL.openStream();
>            data = convertStreamToString(is);
>            MultipartEntity e = new MultipartEntity();
>            e.addPart("default-graph-uri", new StringBody(graphname));
>            e.addPart("data", new Body(data, rdfURL.toString(), Charset
>                    .forName("UTF-8")));
>            post.setEntity(e);
>
>            HttpResponse response = client.execute((HttpUriRequest) post);
>            StatusLine status = response.getStatusLine();
>            System.out.println("code: " + status.getStatusCode() + ": "
>                    + status.getReasonPhrase());
>            HttpEntity entity = response.getEntity();
>
>            if (entity != null) {
>                InputStream instream = entity.getContent();
>                BufferedReader reader = new BufferedReader(
>                        new InputStreamReader(instream));
>                System.out.println("Got response:");
>                String line;
>                while ((line = reader.readLine()) != null)
>                    System.out.println(line);
>            } else {
>                System.out.println("No entity in response");
>            }
>            System.out.println("Done loading file");
>        } catch (UnsupportedEncodingException e) {
>            System.err.println("Unable to encode data: " + e.getMessage());
>        } catch (ClientProtocolException cpe) {
>            System.err.println("Error in protocol: " + cpe.getMessage());
>        } catch (IOException ioe) {
>            System.err.println("Error executing POST: " + ioe.getMessage());
>        } catch (Exception ge) {
>            System.err.println("Error executing load rdf: " + ge.getMessage());
>
>        }
>
>        return "";
>    }
>
>
> Is there some logging to turn on to capture more information from mulgara?
> Thanks,
> Chuck
>
>
>
>
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