| package org.apache.commons.rdf.impl.sparql; |
| |
| /* |
| * To change this license header, choose License Headers in Project Properties. |
| * To change this template file, choose Tools | Templates |
| * and open the template in the editor. |
| */ |
| |
| |
| import org.apache.commons.rdf.impl.sparql.*; |
| import com.hp.hpl.jena.query.DatasetAccessor; |
| import com.hp.hpl.jena.query.DatasetAccessorFactory; |
| import java.io.IOException; |
| import java.net.ServerSocket; |
| import org.apache.jena.fuseki.EmbeddedFusekiServer; |
| import com.hp.hpl.jena.rdf.model.Model; |
| import com.hp.hpl.jena.rdf.model.ModelFactory; |
| import java.io.InputStream; |
| import java.util.Iterator; |
| import org.apache.commons.rdf.BlankNode; |
| import org.apache.commons.rdf.BlankNodeOrIri; |
| import org.apache.commons.rdf.Graph; |
| import org.apache.commons.rdf.Iri; |
| import org.apache.commons.rdf.RdfTerm; |
| import org.apache.commons.rdf.Triple; |
| import org.junit.AfterClass; |
| import org.junit.Assert; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| |
| /** |
| * |
| * @author reto |
| */ |
| public class SimilarBNodes { |
| |
| final static int serverPort = findFreePort(); |
| static EmbeddedFusekiServer server; |
| |
| @BeforeClass |
| public static void prepare() throws IOException { |
| final String serviceURI = "http://localhost:" + serverPort + "/ds/data"; |
| final DatasetAccessor accessor = DatasetAccessorFactory.createHTTP(serviceURI); |
| final InputStream in = SimilarBNodes.class.getResourceAsStream("similar-bnodes.ttl"); |
| final Model m = ModelFactory.createDefaultModel(); |
| String base = "http://example.org/"; |
| m.read(in, base, "TURTLE"); |
| server = EmbeddedFusekiServer.memTDB(serverPort, "/ds");//dataSet.getAbsolutePath()); |
| server.start(); |
| System.out.println("Started fuseki on port " + serverPort); |
| accessor.putModel(m); |
| } |
| |
| @AfterClass |
| public static void cleanup() { |
| server.stop(); |
| } |
| |
| @Test |
| public void graphSize() { |
| final Graph graph = new SparqlGraph("http://localhost:" + serverPort + "/ds/query"); |
| Assert.assertEquals("Graph not of the exepected size", 2, graph.size()); |
| } |
| |
| |
| |
| @Test |
| public void foafKnowsFilter() { |
| final Graph graph = new SparqlGraph("http://localhost:" + serverPort + "/ds/query"); |
| |
| final Iri foafKnows = new Iri("http://xmlns.com/foaf/0.1/knows"); |
| |
| final Iterator<Triple> iter = graph.filter(null, foafKnows, null); |
| Assert.assertTrue(iter.hasNext()); |
| final Triple triple1 = iter.next(); |
| final BlankNodeOrIri subject1 = triple1.getSubject(); |
| Assert.assertTrue(subject1 instanceof BlankNode); |
| Assert.assertTrue(iter.hasNext()); |
| final Triple triple2 = iter.next(); |
| final BlankNodeOrIri subject2 = triple2.getSubject(); |
| Assert.assertTrue(subject2 instanceof BlankNode); |
| Assert.assertNotEquals(subject1, subject2); |
| } |
| |
| |
| |
| |
| public static int findFreePort() { |
| int port = 0; |
| try (ServerSocket server = new ServerSocket(0);) { |
| port = server.getLocalPort(); |
| } catch (Exception e) { |
| throw new RuntimeException("unable to find a free port"); |
| } |
| return port; |
| } |
| |
| } |