Examples with RDFNode com.hp.hpl.jena.rdf.model.RDFNode used on opensource projects

Example 1 with RDFNode

use of com.hp.hpl.jena.rdf.model.RDFNode in project goci by EBISPOT.

the class SparqlTemplate method query.

public <T> T query(String sparql, ResultSetMapper<T> rsm, Object... args) {
    sparql = getPrefixString().concat(sparql);
    Graph g = getJenaQueryExecutionService().getDefaultGraph();
    Map<String, Object> bindingMap = new HashMap<String, Object>();
    int i = 0;
    for (Object o : args) {
        String argName = "?_arg" + i++;
        sparql = sparql.replaceFirst("\\?\\?", argName);
        bindingMap.put(argName, o);
    }
    Query q1 = QueryFactory.create(sparql, Syntax.syntaxARQ);
    QuerySolutionMap initialBinding = new QuerySolutionMap();
    for (String argName : bindingMap.keySet()) {
        Object argValue = bindingMap.get(argName);
        RDFNode arg;
        if (argValue instanceof URI) {
            arg = new ResourceImpl(argValue.toString());
        } else {
            arg = getLiteralNode(argValue);
        }
        initialBinding.add(argName, arg);
    }
    ParameterizedSparqlString queryString = new ParameterizedSparqlString(q1.toString(), initialBinding);
    QueryExecution execute = null;
    try {
        execute = getJenaQueryExecutionService().getQueryExecution(g, queryString.asQuery(), false);
        ResultSet results = execute.execSelect();
        return rsm.mapResultSet(results);
    } catch (LodeException e) {
        throw new SparqlQueryException("Failed to execute query '" + sparql + "'", e);
    } finally {
        if (execute != null) {
            execute.close();
            if (g != null) {
                g.close();
            }
        }
    }
}

Example 2 with RDFNode

use of com.hp.hpl.jena.rdf.model.RDFNode in project stanbol by apache.

the class JenaToOwlConvert method ResourceJenaToOwlAxiom.

// //////////////////////////////////////////////////////////////////////////////
/**
 * This function converts every statments relative to a resource in an a set of OWLAxiom objects
 *
 * @param jenadata
 *            {A resource in the form (S,P,O), it could be any kind of resource (a class, a data property,
 *            an object property and an instance) except a litteral}
 * @param format
 *            {The format of the ontology, i.e. "RDF/XML"}
 * @return {A set of axiom in the form of Set<OWLAxiom>}
 */
public synchronized Set<OWLAxiom> ResourceJenaToOwlAxiom(Resource jenadata, String format) {
    while (available == false) {
        try {
            wait();
        } catch (InterruptedException e) {
            System.err.println("ResourceJenaToOwlAxiom::: " + e);
        }
    }
    available = false;
    try {
        OntModel model = ModelFactory.createOntologyModel();
        StmtIterator prop = jenadata.listProperties();
        while (prop.hasNext()) {
            Statement stat = prop.nextStatement();
            model.add(stat);
            RDFNode obj = stat.getObject();
            if (obj.isResource()) {
                if (!obj.isURIResource()) {
                    StmtIterator aux = ((Resource) obj).listProperties();
                    while (aux.hasNext()) {
                        Statement stataux = aux.nextStatement();
                        model.add(stataux);
                    }
                }
            }
        }
        OWLOntology owlmodel = ModelJenaToOwlConvert(model, format);
        available = true;
        notifyAll();
        return owlmodel.getAxioms();
    } catch (Exception e) {
        System.err.print("ResourceJenaToOwlAxiom::: ");
        e.printStackTrace();
        return null;
    }
}

Example 3 with RDFNode

use of com.hp.hpl.jena.rdf.model.RDFNode in project lucene-skos by behas.

the class SKOSEngineImpl method indexObject.

private void indexObject(Resource skos_concept, Document conceptDoc, ObjectProperty property, String field) {
    StmtIterator stmt_iter = skos_concept.listProperties(property);
    while (stmt_iter.hasNext()) {
        RDFNode concept = stmt_iter.nextStatement().getObject();
        if (!concept.canAs(Resource.class)) {
            logger.warn("Error when indexing relationship of concept " + skos_concept.getURI() + " .");
            continue;
        }
        Resource resource = concept.as(Resource.class);
        Field conceptField = new Field(field, resource.getURI(), TextField.TYPE_STORED);
        conceptDoc.add(conceptField);
    }
}

Example 4 with RDFNode

use of com.hp.hpl.jena.rdf.model.RDFNode in project wikidata-query-rdf by wikimedia.

the class BigdataStatementToJenaStatementMapper method map1.

@Override
public Statement map1(final BigdataStatement blzgStmt) {
    final Resource s = convertToJenaResource(blzgStmt.getSubject());
    final Property p = convertToJenaProperty(blzgStmt.getPredicate());
    final RDFNode o = convertToJenaRDFNode(blzgStmt.getObject());
    return ResourceFactory.createStatement(s, p, o);
}

Example 5 with RDFNode

use of com.hp.hpl.jena.rdf.model.RDFNode in project nextprot-api by calipho-sib.

the class RdfHelpServiceImpl method getDataFromSolutionVar.

private Object getDataFromSolutionVar(QuerySolution sol, String var, boolean useQuotes) {
    RDFNode n = sol.get(var);
    if (n == null)
        return "";
    RDFBasicVisitor rdfVisitor = new RDFBasicVisitor(sparqlDictionary.getSparqlPrefixes());
    rdfVisitor.setSurroundLiteralStringWithQuotes(useQuotes);
    return n.visitWith(rdfVisitor);
}