/*
* 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 org.apache.clerezza.rdf.jena.sparql;
import java.util.List;
import org.junit.Assert;
import org.junit.Test;
import org.apache.clerezza.rdf.core.Graph;
import org.apache.clerezza.rdf.core.Literal;
import org.apache.clerezza.rdf.core.UriRef;
import org.apache.clerezza.rdf.core.access.TcManager;
import org.apache.clerezza.rdf.core.impl.PlainLiteralImpl;
import org.apache.clerezza.rdf.core.impl.SimpleMGraph;
import org.apache.clerezza.rdf.core.impl.TripleImpl;
import org.apache.clerezza.rdf.core.sparql.ParseException;
import org.apache.clerezza.rdf.core.sparql.QueryParser;
import org.apache.clerezza.rdf.core.sparql.ResultSet;
import org.apache.clerezza.rdf.ontologies.DC;
/**
*
* @author rbn
*/
public class SimpleTest {
@Test
public void simpleStringQuery() throws ParseException {
SimpleMGraph data = new SimpleMGraph();
final String titleValue = "SPARQL Tutorial";
data.add(new TripleImpl(new UriRef("http://example.org/book/book1"),
DC.title, new PlainLiteralImpl(titleValue)));
String query = "SELECT ?title WHERE" + "{"
+ " <http://example.org/book/book1> <"
+ DC.title.getUnicodeString() + "> ?title ." + "}";
ResultSet resultSet = (ResultSet) TcManager.getInstance()
.executeSparqlQuery(query, data);
Assert.assertEquals(titleValue, ((Literal) resultSet.next()
.get("title")).getLexicalForm());
List<String> columnNames = resultSet.getResultVars();
Assert.assertEquals(columnNames.size(), 1);
Assert.assertEquals(columnNames.get(0), "title");
}
@Test
public void simpleSelectQuery() throws ParseException {
SimpleMGraph data = new SimpleMGraph();
final String titleValue = "SPARQL Tutorial";
data.add(new TripleImpl(new UriRef("http://example.org/book/book1"),
DC.title, new PlainLiteralImpl(titleValue)));
String query = "SELECT ?title WHERE" + "{"
+ " <http://example.org/book/book1> <"
+ DC.title.getUnicodeString() + "> ?title ." + "}";
ResultSet resultSet = (ResultSet) TcManager.getInstance()
.executeSparqlQuery(QueryParser.getInstance().parse(query),
data);
Assert.assertEquals(titleValue, ((Literal) resultSet.next()
.get("title")).getLexicalForm());
}
@Test
public void simpleAskQuery() throws ParseException {
SimpleMGraph data = new SimpleMGraph();
final String titleValue = "SPARQL Tutorial";
data.add(new TripleImpl(new UriRef("http://example.org/book/book1"),
DC.title, new PlainLiteralImpl(titleValue)));
String query = "ASK WHERE" + "{"
+ " <http://example.org/book/book1> <"
+ DC.title.getUnicodeString() + "> ?title ." + "}";
Assert.assertEquals(
Boolean.TRUE,
TcManager.getInstance().executeSparqlQuery(
QueryParser.getInstance().parse(query), data));
}
@Test
public void simpleDescribe() throws ParseException {
SimpleMGraph data = new SimpleMGraph();
final String titleValue = "SPARQL Tutorial";
data.add(new TripleImpl(new UriRef("http://example.org/book/book1"),
DC.title, new PlainLiteralImpl(titleValue)));
String query = "DESCRIBE " + " <http://example.org/book/book1>";
Assert.assertEquals(
1,
((Graph) TcManager.getInstance().executeSparqlQuery(
QueryParser.getInstance().parse(query), data)).size());
}
@Test
public void simpleConstruct() throws ParseException {
SimpleMGraph data = new SimpleMGraph();
final String titleValue = "SPARQL Tutorial";
data.add(new TripleImpl(new UriRef("http://example.org/book/book1"),
DC.title, new PlainLiteralImpl(titleValue)));
String query = "PREFIX foaf: <http://xmlns.com/foaf/0.1/> "
+ "CONSTRUCT { <http://foo/bar> foaf:name ?title } WHERE" + "{"
+ " <http://example.org/book/book1> <"
+ DC.title.getUnicodeString() + "> ?title ." + "}";
Assert.assertEquals(
1,
((Graph) TcManager.getInstance().executeSparqlQuery(
QueryParser.getInstance().parse(query), data)).size());
}
}