Examples with ResultSet com.hp.hpl.jena.query.ResultSet used on opensource projects

Example 1 with ResultSet

use of com.hp.hpl.jena.query.ResultSet 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 ResultSet

use of com.hp.hpl.jena.query.ResultSet in project stanbol by apache.

the class RdfIndexingSource method debug.

public void debug() {
    String entityVar = "s";
    String fieldVar = "p";
    String valueVar = "o";
    StringBuilder qb = new StringBuilder();
    qb.append(String.format("SELECT ?%s ?%s ?%s \n", entityVar, fieldVar, //for the select
    valueVar));
    qb.append("{ \n");
    qb.append(String.format("    ?%s ?%s ?%s . \n", entityVar, fieldVar, //for the where
    valueVar));
    qb.append("} \n");
    log.debug("EntityDataIterator Query: \n" + qb.toString());
    Query q = QueryFactory.create(qb.toString(), Syntax.syntaxARQ);
    ResultSet rs = QueryExecutionFactory.create(q, indexingDataset.toDataset()).execSelect();
    Var s = Var.alloc(entityVar);
    Var p = Var.alloc(fieldVar);
    Var o = Var.alloc(valueVar);
    while (rs.hasNext()) {
        Binding b = rs.nextBinding();
        log.debug("{} {} {}", new Object[] { b.get(s), b.get(p), b.get(o) });
    }
}

Example 3 with ResultSet

use of com.hp.hpl.jena.query.ResultSet in project goci by EBISPOT.

the class SparqlTemplate method query.

public <T> T query(String sparql, ResultSetMapper<T> rsm) {
    sparql = getPrefixString().concat(sparql);
    Graph g = getJenaQueryExecutionService().getDefaultGraph();
    Query q1 = QueryFactory.create(sparql, Syntax.syntaxARQ);
    QueryExecution execute = null;
    try {
        execute = getJenaQueryExecutionService().getQueryExecution(g, q1, 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 4 with ResultSet

use of com.hp.hpl.jena.query.ResultSet in project stanbol by apache.

the class RunSingleSPARQLTest method testCreateSPARQLQueryExecutionFactory.

/**
     * Test of testCreateSPARQLQueryExecutionFactory() method, of class RunSingleSPARQL.
     */
@Test
public void testCreateSPARQLQueryExecutionFactory() {
    Map<String, String> map = new HashMap<String, String>();
    map.put("rdfs", "<http://www.w3.org/2000/01/rdf-schema#>");
    map.put("xsd", "<http://www.w3.org/2000/01/rdf-schema#>");
    map.put("owl", "<http://www.w3.org/2000/01/rdf-schema#>");
    map.put("rdf", "<http://www.w3.org/1999/02/22-rdf-syntax-ns#>");
    map.put("ex", "<http://www.semanticweb.org/ontologies/2010/6/ProvaParent.owl#>");
    String query = "SELECT * WHERE {?p rdf:type ex:Person .}";
    RunSingleSPARQL instance = new RunSingleSPARQL(owl, map);
    QueryExecution queryExecution = instance.createSPARQLQueryExecutionFactory(query);
    if (queryExecution == null) {
        fail("Some errors occurred in createSPARQLQueryExecutionFactory of KReSRunSPARQL");
    }
    ResultSet result = queryExecution.execSelect();
    if (result != null) {
        int m = 0;
        while (result.hasNext()) {
            result.next();
            m++;
        }
        queryExecution.close();
        assertEquals(3, m);
    // TODO review the generated test code and remove the default call to fail.
    } else {
        fail("Some errors occur in createSPARQLQueryExecutionFactory of KReSRunSPARQL");
    }
}