Examples with Lang org.apache.jena.riot.Lang used on opensource projects

Example 21 with Lang

use of org.apache.jena.riot.Lang in project jena by apache.

the class ResultSetFactory method load.

/**
     * Load a result set from input stream into a result set (memory backed).
     * 
     * @param input
     * @param format
     * @return ResultSet
     */
public static ResultSet load(InputStream input, ResultsFormat format) {
    if (format == null) {
        Log.warn(ResultSet.class, "Null format - defaulting to XML");
        format = ResultsFormat.FMT_RS_XML;
    }
    // Old World - new world
    Lang lang = ResultsFormat.convert(format);
    if (lang != null)
        return ResultSetMgr.read(input, lang);
    if (format.equals(ResultsFormat.FMT_RS_JSON))
        return JSONInput.fromJSON(input);
    if (format.equals(ResultsFormat.FMT_RS_TSV))
        return TSVInput.fromTSV(input);
    if (format.equals(ResultsFormat.FMT_RS_CSV))
        return CSVInput.fromCSV(input);
    if (format.equals(ResultsFormat.FMT_RS_BIO))
        return BIOInput.fromBIO(input);
    if (format.equals(ResultsFormat.FMT_RS_XML))
        return ResultSetFactory.fromXML(input);
    if (format.equals(ResultsFormat.FMT_TEXT)) {
        Log.warn(ResultSet.class, "Can't read a text result set");
        throw new ResultSetException("Can't read a text result set");
    }
    if (format.equals(ResultsFormat.FMT_RDF_XML)) {
        Model m = ModelFactory.createDefaultModel();
        m.read(input, null);
        return RDFInput.fromRDF(m);
    }
    if (format.equals(ResultsFormat.FMT_RDF_TTL)) {
        Model m = ModelFactory.createDefaultModel();
        m.read(input, null, "TURTLE");
        return RDFInput.fromRDF(m);
    }
    if (format.equals(ResultsFormat.FMT_RDF_N3)) {
        Model m = ModelFactory.createDefaultModel();
        m.read(input, null, "N3");
        return RDFInput.fromRDF(m);
    }
    if (format.equals(ResultsFormat.FMT_RDF_NT)) {
        Model m = ModelFactory.createDefaultModel();
        m.read(input, null, "N-TRIPLES");
        return RDFInput.fromRDF(m);
    }
    Log.warn(ResultSet.class, "Unknown result set syntax: " + format);
    return null;
}

Example 22 with Lang

use of org.apache.jena.riot.Lang in project jena by apache.

the class UpdateEngineWorker method visit.

@Override
public void visit(UpdateLoad update) {
    // LOAD SILENT? iri ( INTO GraphRef )? 
    String source = update.getSource();
    Node dest = update.getDest();
    try {
        // Read into temporary storage to protect against parse errors.
        if (dest != null) {
            Lang lang = RDFLanguages.filenameToLang(source);
            // load-to-graph - must be triples. 
            if (!RDFLanguages.isTriples(lang))
                throw new UpdateException("Attempt to load quads into a graph");
            // LOAD-INTO graph ... must be triples.
            Graph g = GraphFactory.createGraphMem();
            RDFParser.source(source).parse(g);
            Graph g2 = graph(datasetGraph, dest);
            GraphUtil.addInto(g2, g);
        } else {
            // LOAD <iri> -- allow quads.
            DatasetGraph dsg = DatasetGraphFactory.create();
            RDFParser.source(source).parse(dsg);
            Iterator<Quad> iter = dsg.find();
            for (; iter.hasNext(); ) {
                Quad q = iter.next();
                datasetGraph.add(q);
            }
        }
    } catch (RuntimeException ex) {
        if (!update.getSilent()) {
            if (ex instanceof UpdateException)
                throw ex;
            throw new UpdateException("Failed to LOAD '" + source + "'", ex);
        }
    }
}

Example 23 with Lang

use of org.apache.jena.riot.Lang in project jena by apache.

the class TestResultSetIO method data.

@Parameters(name = "{index}: {0}")
public static Collection<Object[]> data() {
    Lang[] langs = { SPARQLResultSetXML, SPARQLResultSetJSON, SPARQLResultSetCSV, SPARQLResultSetTSV };
    List<Object[]> x = new ArrayList<>();
    for (Lang lang : langs) {
        x.add(new Object[] { "test:" + lang.getName(), lang });
    }
    return x;
}

Example 24 with Lang

use of org.apache.jena.riot.Lang in project jena by apache.

the class UnitTestEval method run4.

private void run4() {
    DatasetGraph dsg = DatasetGraphFactory.create();
    try {
        if (baseIRI != null)
            RDFDataMgr.read(dsg, input, baseIRI, lang);
        else
            RDFDataMgr.read(dsg, input, lang);
        Lang outLang = RDFLanguages.filenameToLang(output, Lang.NQUADS);
        DatasetGraph results = DatasetGraphFactory.create();
        try {
            RDFDataMgr.read(results, output, outLang);
        } catch (RiotException ex) {
            fail("Failed to read results: " + ex.getMessage());
        }
        boolean b = isomorphic(dsg, results);
        if (!b) {
            System.out.println("**** Test: " + getName());
            System.out.println("---- Parsed");
            RDFDataMgr.write(System.out, dsg, Lang.TRIG);
            System.out.println("---- Expected");
            RDFDataMgr.write(System.out, results, Lang.TRIG);
            System.out.println("--------");
        }
        assertTrue("Datasets not isomorphic", b);
    } catch (RiotException ex) {
        // Catch and rethrow - debugging.
        throw ex;
    } catch (RuntimeException ex) {
        ex.printStackTrace(System.err);
        throw ex;
    }
}

Example 25 with Lang

use of org.apache.jena.riot.Lang in project jena by apache.

the class UnitTestEval method run3.

// Triples test.
private void run3() {
    Model model = ModelFactory.createDefaultModel();
    try {
        if (baseIRI != null)
            RDFDataMgr.read(model, input, baseIRI, lang);
        else
            RDFDataMgr.read(model, input, lang);
        Lang outLang = RDFLanguages.filenameToLang(output, Lang.NQUADS);
        Model results = ModelFactory.createDefaultModel();
        try {
            RDFDataMgr.read(results, output, outLang);
        } catch (RiotException ex) {
            fail("Failed to read results: " + ex.getMessage());
        }
        boolean b = model.isIsomorphicWith(results);
        if (!b) {
            //model.isIsomorphicWith(results) ;
            System.out.println("---- Parsed");
            model.write(System.out, "TTL");
            System.out.println("---- Expected");
            results.write(System.out, "TTL");
            System.out.println("--------");
        }
        assertTrue("Models not isomorphic", b);
    } catch (RiotException ex) {
        // Catch and rethrow - debugging.
        throw ex;
    } catch (RuntimeException ex) {
        ex.printStackTrace(System.err);
        throw ex;
    }
}