/*
* 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.characteristics;
import org.apache.hadoop.io.LongWritable;
import org.apache.hadoop.io.NullWritable;
import org.apache.hadoop.mapreduce.Mapper;
import org.apache.hadoop.mapreduce.Reducer;
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.characteristics.TripleCharacteristicSetGeneratingReducer;
import org.apache.jena.hadoop.rdf.mapreduce.group.TripleGroupBySubjectMapper;
import org.apache.jena.hadoop.rdf.types.CharacteristicSetWritable;
import org.apache.jena.hadoop.rdf.types.NodeWritable;
import org.apache.jena.hadoop.rdf.types.TripleWritable;
/**
* Tests for the {@link TripleCharacteristicSetGeneratingReducer}
*
*
*
*/
public class TripleCharacteristicSetGeneratingReducerTest extends AbstractCharacteristicSetGeneratingReducerTests<Triple, TripleWritable> {
@Override
protected Mapper<LongWritable, TripleWritable, NodeWritable, TripleWritable> getMapperInstance() {
return new TripleGroupBySubjectMapper<LongWritable>();
}
@Override
protected Reducer<NodeWritable, TripleWritable, CharacteristicSetWritable, NullWritable> getReducerInstance() {
return new TripleCharacteristicSetGeneratingReducer();
}
@Override
protected TripleWritable createTuple(int i, String predicateUri) {
return new TripleWritable(new Triple(NodeFactory.createURI("http://subjects/" + i), NodeFactory.createURI(predicateUri),
NodeFactory.createLiteral(Integer.toString(i), XSDDatatype.XSDinteger)));
}
}