Java tutorial
package de.unikiel.inf.comsys.neo4j; /* * #%L * neo4j-sparql-extension * %% * Copyright (C) 2014 Niclas Hoyer * %% * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public * License along with this program. If not, see * <http://www.gnu.org/licenses/gpl-3.0.html>. * #L% */ import com.nebhale.jsonpath.JsonPath; import com.sun.jersey.api.client.Client; import com.sun.jersey.api.client.ClientResponse; import com.sun.jersey.api.client.WebResource; import com.sun.jersey.api.client.config.DefaultClientConfig; import java.io.IOException; import java.io.InputStream; import java.io.StringWriter; import java.net.ServerSocket; import org.apache.commons.io.IOUtils; import org.codehaus.jackson.jaxrs.JacksonJsonProvider; import org.junit.AfterClass; import org.junit.BeforeClass; import org.neo4j.graphdb.GraphDatabaseService; import org.neo4j.server.CommunityNeoServer; import org.neo4j.server.helpers.CommunityServerBuilder; import org.openrdf.repository.Repository; import org.openrdf.repository.RepositoryConnection; import org.openrdf.repository.RepositoryException; import org.openrdf.rio.RDFFormat; import org.openrdf.rio.RDFParseException; public class RDFServerExtensionTest { protected static CommunityNeoServer server; protected static RepositoryConnection conn; @BeforeClass public static void setUp() throws IOException, RepositoryException, RDFParseException { int port; try (final ServerSocket serverSocket = new ServerSocket(0)) { port = serverSocket.getLocalPort(); } server = CommunityServerBuilder.server().onPort(port) .withThirdPartyJaxRsPackage("de.unikiel.inf.comsys.neo4j", "/rdf").build(); server.start(); GraphDatabaseService db = server.getDatabase().getGraph(); Repository rep = RepositoryRegistry.getInstance(db).getRepository(); conn = rep.getConnection(); InputStream testdata = RDFServerExtensionTest.class.getResourceAsStream("/sp2b.n3"); conn.add(testdata, "http://example.com/", RDFFormat.N3); } @AfterClass public static void tearDown() throws RepositoryException { try { Thread.sleep(3000l); } catch (InterruptedException ex) { } conn.close(); server.stop(); } public RDFServerExtensionTest() { } protected Client request() { DefaultClientConfig defaultClientConfig = new DefaultClientConfig(); defaultClientConfig.getClasses().add(JacksonJsonProvider.class); return Client.create(defaultClientConfig); } protected WebResource request(String path) { return request().resource(server.baseUri().toString() + path); } protected String getQueryAsString(String file) throws IOException { InputStream in = RDFServerExtensionTest.class.getResourceAsStream(file); StringWriter writer = new StringWriter(); IOUtils.copy(in, writer, "UTF-8"); return writer.toString(); } protected <T> T getJsonValue(ClientResponse res, String path, Class<T> clazz) { String json = res.getEntity(String.class); return JsonPath.read(path, json, clazz); } protected String getType(ClientResponse res) { return res.getType().getType() + "/" + res.getType().getSubtype(); } }