Examples of org.apache.marmotta.client.model.sparql.SPARQLResult

Package org.apache.marmotta.client.model.sparql

Examples of org.apache.marmotta.client.model.sparql.SPARQLResult

org.apache.marmotta.client.model.sparql.SPARQLResult
Provides a list of result bindings and information about the available fields. @author Sebastian Schaffert

                    if(!results.getHandledTuple() || results.getBindingSets().isEmpty()) {
                        return null;
                    } else {
                        List<String> fieldNames = results.getBindingNames();


                        SPARQLResult result = new SPARQLResult(new LinkedHashSet<String>(fieldNames));


                        //List<?> bindings = resultMap.get("results").get("bindings");
                        for(BindingSet nextRow : results.getBindingSets()) {
                            Map<String,RDFNode> row = new HashMap<String, RDFNode>();
                            
                            for(String nextBindingName : fieldNames) {
                                if(nextRow.hasBinding(nextBindingName)) {
                                    Binding nextBinding = nextRow.getBinding(nextBindingName);
                                    //Map<String,String> nodeDef = (Map<String,String>) entry.getValue();
                                    Value nodeDef = nextBinding.getValue();
                                    RDFNode node = null;
                                    if(nodeDef instanceof org.openrdf.model.URI) {
                                        node = new URI(nodeDef.stringValue());
                                    } else if(nodeDef instanceof org.openrdf.model.BNode) {
                                        node = new BNode(((org.openrdf.model.BNode)nodeDef).getID());
                                    } else if(nodeDef instanceof org.openrdf.model.Literal) {
                                        org.openrdf.model.Literal nodeLiteral = (org.openrdf.model.Literal)nodeDef;
                                        if(nodeLiteral.getLanguage() != null) {
                                            node = new Literal(nodeLiteral.getLabel(), nodeLiteral.getLanguage());
                                        } else if(nodeLiteral.getDatatype() != null) {
                                            node = new Literal(nodeLiteral.getLabel(), new URI(nodeLiteral.getDatatype().stringValue()));
                                        } else {
                                            node = new Literal(nodeLiteral.getLabel());
                                        }
                                    } else {
                                        log.error("unknown result node type: {}",nodeDef);
                                    }
                                    
                                    if(node != null) {
                                        row.put(nextBindingName, node);
                                    }
                                }
                            }
                            result.add(row);
                        }
                        return result;
                    }
                default:
                    log.error("error evaluating SPARQL Select Query {}: {} {}",new Object[] {query,response.getStatusLine().getStatusCode(),response.getStatusLine().getReasonPhrase()});

View Full Code Here


    @Test
    public void testSparqlSelect() throws Exception {
        SPARQLClient client = new SPARQLClient(config);


        SPARQLResult result = client.select("SELECT ?r ?n WHERE { ?r <http://xmlns.com/foaf/0.1/name> ?n }");
        Assert.assertEquals(3, result.size());
        Assert.assertThat(result, (Matcher) hasItems(hasKey("r"), hasKey("n")));
        Assert.assertThat(result,(Matcher)hasItem(hasValue(hasProperty("content", equalTo("Sepp Huber")))));
    }

View Full Code Here

                            if(o instanceof String) {
                                fieldNames.add((String)o);
                            }
                        }


                        SPARQLResult result = new SPARQLResult(fieldNames);


                        List<?> bindings = resultMap.get("results").get("bindings");
                        for(Object o : bindings) {
                            if(o instanceof Map) {
                                Map<String,RDFNode> row = new HashMap<String, RDFNode>();
                                for(Map.Entry<String,?> entry : ((Map<String,?>)o).entrySet()) {
                                    Map<String,String> nodeDef = (Map<String,String>) entry.getValue();
                                    RDFNode node = null;
                                    if("uri".equalsIgnoreCase(nodeDef.get("type"))) {
                                        node = new URI(nodeDef.get("value"));
                                    } else if("literal".equalsIgnoreCase(nodeDef.get("type")) ||
                                              "typed-literal".equalsIgnoreCase(nodeDef.get("type"))) {
                                        String lang = nodeDef.get("xml:lang");
                                        String datatype = nodeDef.get("datatype");


                                        if(lang != null) {
                                            node = new Literal(nodeDef.get("value"),lang);
                                        } else if(datatype != null) {
                                            node = new Literal(nodeDef.get("value"),new URI(datatype));
                                        } else {
                                            node = new Literal(nodeDef.get("value"));
                                        }
                                    } else if("bnode".equalsIgnoreCase(nodeDef.get("type"))) {
                                        node = new BNode(nodeDef.get("value"));
                                    } else {
                                        log.error("unknown result node type: {}",nodeDef.get("type"));
                                    }
                                    
                                    if(node != null) {
                                        row.put(entry.getKey(),node);
                                    }
                                }
                                result.add(row);
                            }
                        }
                        return result;
                    }
                default:

View Full Code Here

TOP

Related Classes of org.apache.marmotta.client.model.sparql.SPARQLResult

org.apache.marmotta.client.clients.SPARQLClient

org.apache.marmotta.client.test.sparql.SPARQLIT

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.