/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package arq.examples;
import java.util.ArrayList ;
import java.util.HashMap ;
import java.util.List ;
import java.util.Map ;
import org.apache.jena.query.* ;
import org.apache.jena.rdf.model.ModelFactory ;
public class ExampleDBpedia3
{
static public void main(String... argv) {
String serviceURI = "http://dbpedia-live.openlinksw.com/sparql" ;
String queryString =
"SELECT * WHERE { " +
" SERVICE <" + serviceURI + "> { " +
" SELECT DISTINCT ?company where {?company a <http://dbpedia.org/ontology/Company>} LIMIT 20" +
" }" +
"}" ;
Query query = QueryFactory.create(queryString) ;
try(QueryExecution qexec = QueryExecutionFactory.create(query, ModelFactory.createDefaultModel())) {
Map<String, Map<String,List<String>>> serviceParams = new HashMap<String, Map<String,List<String>>>() ;
Map<String,List<String>> params = new HashMap<String,List<String>>() ;
List<String> values = new ArrayList<String>() ;
values.add("2000") ;
params.put("timeout", values) ;
serviceParams.put(serviceURI, params) ;
qexec.getContext().set(ARQ.serviceParams, serviceParams) ;
ResultSet rs = qexec.execSelect() ;
ResultSetFormatter.out(System.out, rs, query) ;
}
}
}