/*
* 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.jena.hadoop.rdf.mapreduce.transform;
import java.io.IOException;
import org.apache.hadoop.io.LongWritable;
import org.apache.hadoop.mapreduce.Mapper;
import org.apache.hadoop.mrunit.mapreduce.MapDriver;
import org.apache.hadoop.mrunit.types.Pair;
import org.apache.jena.datatypes.xsd.XSDDatatype ;
import org.apache.jena.graph.NodeFactory ;
import org.apache.jena.graph.Triple ;
import org.apache.jena.hadoop.rdf.mapreduce.AbstractMapperTests;
import org.apache.jena.hadoop.rdf.mapreduce.transform.TriplesToQuadsBySubjectMapper;
import org.apache.jena.hadoop.rdf.types.QuadWritable;
import org.apache.jena.hadoop.rdf.types.TripleWritable;
import org.apache.jena.sparql.core.Quad ;
import org.junit.Test;
/**
* Tests for the {@link TriplesToQuadsBySubjectMapper}
*
*
*
*/
public class TriplesToQuadsBySubjectMapperTest extends AbstractMapperTests<LongWritable, TripleWritable, LongWritable, QuadWritable> {
@Override
protected Mapper<LongWritable, TripleWritable, LongWritable, QuadWritable> getInstance() {
return new TriplesToQuadsBySubjectMapper<LongWritable>();
}
protected void generateData(MapDriver<LongWritable, TripleWritable, LongWritable, QuadWritable> driver, int num) {
for (int i = 0; i < num; i++) {
Triple t = new Triple(NodeFactory.createURI("http://subjects/" + i), NodeFactory.createURI("http://predicate"),
NodeFactory.createLiteral(Integer.toString(i), XSDDatatype.XSDinteger));
Quad q = new Quad(t.getSubject(), t);
driver.addInput(new LongWritable(i), new TripleWritable(t));
driver.addOutput(new LongWritable(i), new QuadWritable(q));
}
}
/**
* Tests quads to triples conversion
*
* @throws IOException
*/
@Test
public void triples_to_quads_mapper_01() throws IOException {
MapDriver<LongWritable, TripleWritable, LongWritable, QuadWritable> driver = this.getMapDriver();
Triple t = new Triple(NodeFactory.createURI("http://s"), NodeFactory.createURI("http://p"),
NodeFactory.createLiteral("test"));
Quad q = new Quad(t.getSubject(), t);
driver.withInput(new Pair<LongWritable, TripleWritable>(new LongWritable(1), new TripleWritable(t))).withOutput(
new Pair<LongWritable, QuadWritable>(new LongWritable(1), new QuadWritable(q)));
driver.runTest();
}
/**
* Tests quads to triples conversion
*
* @throws IOException
*/
@Test
public void triples_to_quads_mapper_02() throws IOException {
MapDriver<LongWritable, TripleWritable, LongWritable, QuadWritable> driver = this.getMapDriver();
this.generateData(driver, 100);
driver.runTest();
}
/**
* Tests quads to triples conversion
*
* @throws IOException
*/
@Test
public void triples_to_quads_mapper_03() throws IOException {
MapDriver<LongWritable, TripleWritable, LongWritable, QuadWritable> driver = this.getMapDriver();
this.generateData(driver, 1000);
driver.runTest();
}
/**
* Tests quads to triples conversion
*
* @throws IOException
*/
@Test
public void triples_to_quads_mapper_04() throws IOException {
MapDriver<LongWritable, TripleWritable, LongWritable, QuadWritable> driver = this.getMapDriver();
this.generateData(driver, 10000);
driver.runTest();
}
}