| package org.apache.lucene.search; |
| |
| /** |
| * 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. |
| */ |
| |
| import org.apache.lucene.document.Document; |
| import org.apache.lucene.document.Field; |
| import org.apache.lucene.index.IndexReader; |
| import org.apache.lucene.index.RandomIndexWriter; |
| import org.apache.lucene.index.Term; |
| import org.apache.lucene.store.Directory; |
| import org.apache.lucene.util.LuceneTestCase; |
| |
| import java.io.IOException; |
| |
| /** This class only tests some basic functionality in CSQ, the main parts are mostly |
| * tested by MultiTermQuery tests, explanations seems to be tested in TestExplanations! */ |
| public class TestConstantScoreQuery extends LuceneTestCase { |
| |
| public void testCSQ() throws Exception { |
| final Query q1 = new ConstantScoreQuery(new TermQuery(new Term("a", "b"))); |
| final Query q2 = new ConstantScoreQuery(new TermQuery(new Term("a", "c"))); |
| final Query q3 = new ConstantScoreQuery(new TermRangeFilter("a", "b", "c", true, true)); |
| QueryUtils.check(q1); |
| QueryUtils.check(q2); |
| QueryUtils.checkEqual(q1,q1); |
| QueryUtils.checkEqual(q2,q2); |
| QueryUtils.checkEqual(q3,q3); |
| QueryUtils.checkUnequal(q1,q2); |
| QueryUtils.checkUnequal(q2,q3); |
| QueryUtils.checkUnequal(q1,q3); |
| QueryUtils.checkUnequal(q1, new TermQuery(new Term("a", "b"))); |
| } |
| |
| private void checkHits(Searcher searcher, Query q, final float expectedScore, final String scorerClassName, final String innerScorerClassName) throws IOException { |
| final int[] count = new int[1]; |
| searcher.search(q, new Collector() { |
| private Scorer scorer; |
| |
| @Override |
| public void setScorer(Scorer scorer) { |
| this.scorer = scorer; |
| assertEquals("Scorer is implemented by wrong class", scorerClassName, scorer.getClass().getName()); |
| if (innerScorerClassName != null && scorer instanceof ConstantScoreQuery.ConstantScorer) { |
| final ConstantScoreQuery.ConstantScorer innerScorer = (ConstantScoreQuery.ConstantScorer) scorer; |
| assertEquals("inner Scorer is implemented by wrong class", innerScorerClassName, innerScorer.docIdSetIterator.getClass().getName()); |
| } |
| } |
| |
| @Override |
| public void collect(int doc) throws IOException { |
| assertEquals("Score differs from expected", expectedScore, this.scorer.score()); |
| count[0]++; |
| } |
| |
| @Override |
| public void setNextReader(IndexReader reader, int docBase) { |
| } |
| |
| @Override |
| public boolean acceptsDocsOutOfOrder() { |
| return true; |
| } |
| }); |
| assertEquals("invalid number of results", 1, count[0]); |
| } |
| |
| public void testWrapped2Times() throws Exception { |
| Directory directory = null; |
| IndexReader reader = null; |
| IndexSearcher searcher = null; |
| try { |
| directory = newDirectory(); |
| RandomIndexWriter writer = new RandomIndexWriter (random, directory); |
| |
| Document doc = new Document(); |
| doc.add(newField("field", "term", Field.Store.NO, Field.Index.NOT_ANALYZED)); |
| writer.addDocument(doc); |
| |
| reader = writer.getReader(); |
| writer.close(); |
| searcher = newSearcher(reader); |
| |
| // set a similarity that does not normalize our boost away |
| searcher.setSimilarity(new DefaultSimilarity() { |
| @Override |
| public float queryNorm(float sumOfSquaredWeights) { |
| return 1.0f; |
| } |
| }); |
| |
| final Query csq1 = new ConstantScoreQuery(new TermQuery(new Term ("field", "term"))); |
| csq1.setBoost(2.0f); |
| final Query csq2 = new ConstantScoreQuery(csq1); |
| csq2.setBoost(5.0f); |
| |
| final BooleanQuery bq = new BooleanQuery(); |
| bq.add(csq1, BooleanClause.Occur.SHOULD); |
| bq.add(csq2, BooleanClause.Occur.SHOULD); |
| |
| final Query csqbq = new ConstantScoreQuery(bq); |
| csqbq.setBoost(17.0f); |
| |
| checkHits(searcher, csq1, csq1.getBoost(), ConstantScoreQuery.ConstantScorer.class.getName(), null); |
| checkHits(searcher, csq2, csq2.getBoost(), ConstantScoreQuery.ConstantScorer.class.getName(), ConstantScoreQuery.ConstantScorer.class.getName()); |
| |
| // for the combined BQ, the scorer should always be BooleanScorer's BucketScorer, because our scorer supports out-of order collection! |
| final String bucketScorerClass = BooleanScorer.class.getName() + "$BucketScorer"; |
| checkHits(searcher, bq, csq1.getBoost() + csq2.getBoost(), bucketScorerClass, null); |
| checkHits(searcher, csqbq, csqbq.getBoost(), ConstantScoreQuery.ConstantScorer.class.getName(), bucketScorerClass); |
| } finally { |
| if (searcher != null) searcher.close(); |
| if (reader != null) reader.close(); |
| if (directory != null) directory.close(); |
| } |
| } |
| |
| } |