| /* |
| * 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.lucene.search; |
| |
| import java.io.IOException; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Set; |
| |
| import org.apache.lucene.index.LeafReaderContext; |
| import org.apache.lucene.index.Term; |
| import org.apache.lucene.util.LuceneTestCase; |
| |
| public class TestDisjunctionScoreBlockBoundaryPropagator extends LuceneTestCase { |
| |
| private static class FakeWeight extends Weight { |
| |
| FakeWeight() { |
| super(new MatchNoDocsQuery()); |
| } |
| |
| @Override |
| public void extractTerms(Set<Term> terms) {} |
| |
| @Override |
| public Explanation explain(LeafReaderContext context, int doc) throws IOException { |
| return null; |
| } |
| |
| @Override |
| public Scorer scorer(LeafReaderContext context) throws IOException { |
| return null; |
| } |
| |
| @Override |
| public boolean isCacheable(LeafReaderContext ctx) { |
| return false; |
| } |
| } |
| |
| private static class FakeScorer extends Scorer { |
| |
| final int boundary; |
| final float maxScore; |
| |
| FakeScorer(int boundary, float maxScore) throws IOException { |
| super(new FakeWeight()); |
| this.boundary = boundary; |
| this.maxScore = maxScore; |
| } |
| |
| @Override |
| public int docID() { |
| return 0; |
| } |
| |
| @Override |
| public float score() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public DocIdSetIterator iterator() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| public void setMinCompetitiveScore(float minCompetitiveScore) {} |
| |
| @Override |
| public float getMaxScore(int upTo) throws IOException { |
| return maxScore; |
| } |
| |
| @Override |
| public int advanceShallow(int target) { |
| assert target <= boundary; |
| return boundary; |
| } |
| } |
| |
| public void testBasics() throws IOException { |
| Scorer scorer1 = new FakeScorer(20, 0.5f); |
| Scorer scorer2 = new FakeScorer(50, 1.5f); |
| Scorer scorer3 = new FakeScorer(30, 2f); |
| Scorer scorer4 = new FakeScorer(80, 3f); |
| List<Scorer> scorers = Arrays.asList(scorer1, scorer2, scorer3, scorer4); |
| Collections.shuffle(scorers, random()); |
| DisjunctionScoreBlockBoundaryPropagator propagator = new DisjunctionScoreBlockBoundaryPropagator(scorers); |
| assertEquals(20, propagator.advanceShallow(0)); |
| |
| propagator.setMinCompetitiveScore(0.2f); |
| assertEquals(20, propagator.advanceShallow(0)); |
| |
| propagator.setMinCompetitiveScore(0.7f); |
| assertEquals(30, propagator.advanceShallow(0)); |
| |
| propagator.setMinCompetitiveScore(1.2f); |
| assertEquals(30, propagator.advanceShallow(0)); |
| |
| propagator.setMinCompetitiveScore(1.7f); |
| assertEquals(30, propagator.advanceShallow(0)); |
| |
| propagator.setMinCompetitiveScore(2.2f); |
| assertEquals(80, propagator.advanceShallow(0)); |
| |
| propagator.setMinCompetitiveScore(5f); |
| assertEquals(80, propagator.advanceShallow(0)); |
| } |
| |
| } |