at.ac.univie.mminf.luceneSKOS.util.TestUtil.java Source code

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package at.ac.univie.mminf.luceneSKOS.util;

/**
 * Copyright 2010 Bernhard Haslhofer 
 *
 * Licensed 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.
 */

import java.io.IOException;

import org.apache.lucene.search.Explanation;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.ScoreDoc;
import org.apache.lucene.search.TopDocs;

/**
 * Common utilities for testing.
 */
public class TestUtil {

    public static int hitCount(IndexSearcher searcher, Query query) throws IOException {

        TopDocs results = searcher.search(query, 1);

        return results.totalHits;

    }

    public static void explainQuery(IndexSearcher searcher, Query query) throws IOException {

        TopDocs topDocs = searcher.search(query, 10);

        for (ScoreDoc match : topDocs.scoreDocs) {

            Explanation explanation = searcher.explain(query, match.doc);

            System.out.println("---------------");

            System.out.println(explanation.toString());

        }

    }

}