/*
 * 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.count;

import org.apache.hadoop.io.LongWritable;
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.count.NodeCountReducer;
import org.apache.jena.hadoop.rdf.mapreduce.count.TripleNodeCountMapper;
import org.apache.jena.hadoop.rdf.types.NodeWritable;
import org.apache.jena.hadoop.rdf.types.TripleWritable;

/**
 * Tests for the {@link TripleNodeCountMapper} used in conjunction with the
 * {@link NodeCountReducer}
 * 
 * 
 * 
 */
public class TripleNodeCountMapReduceTest extends AbstractNodeTupleNodeCountReducedTests<Triple, TripleWritable> {

    @Override
    protected Mapper<LongWritable, TripleWritable, NodeWritable, LongWritable> getMapperInstance() {
        return new TripleNodeCountMapper<LongWritable>();
    }
    

    @Override
    protected Reducer<NodeWritable, LongWritable, NodeWritable, LongWritable> getReducerInstance() {
        return new NodeCountReducer();
    }

    @Override
    protected TripleWritable createValue(int i) {
        return new TripleWritable(
                new Triple(NodeFactory.createURI("http://subjects/" + i), NodeFactory.createURI("http://predicate"),
                        NodeFactory.createLiteral(Integer.toString(i), XSDDatatype.XSDinteger)));
    }

    @Override
    protected NodeWritable[] getNodes(TripleWritable tuple) {
        Triple t = tuple.get();
        return new NodeWritable[] { new NodeWritable(t.getSubject()), new NodeWritable(t.getPredicate()),
                new NodeWritable(t.getObject()) };
    }
}
