| /* |
| * 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.queries.function; |
| |
| import java.io.IOException; |
| import java.util.function.DoublePredicate; |
| |
| import org.apache.lucene.index.DirectoryReader; |
| import org.apache.lucene.index.IndexReader; |
| import org.apache.lucene.index.LeafReaderContext; |
| import org.apache.lucene.search.DoubleValuesSource; |
| import org.apache.lucene.search.IndexSearcher; |
| import org.apache.lucene.search.QueryUtils; |
| import org.apache.lucene.search.ScoreMode; |
| import org.apache.lucene.search.TopDocs; |
| import org.junit.AfterClass; |
| import org.junit.BeforeClass; |
| |
| import static org.apache.lucene.queries.function.FunctionMatchQuery.DEFAULT_MATCH_COST; |
| |
| public class TestFunctionMatchQuery extends FunctionTestSetup { |
| |
| static IndexReader reader; |
| static IndexSearcher searcher; |
| private static final DoubleValuesSource in = DoubleValuesSource.fromFloatField(FLOAT_FIELD); |
| |
| @BeforeClass |
| public static void beforeClass() throws Exception { |
| createIndex(true); |
| reader = DirectoryReader.open(dir); |
| searcher = new IndexSearcher(reader); |
| } |
| |
| @AfterClass |
| public static void afterClass() throws Exception { |
| reader.close(); |
| } |
| |
| public void testRangeMatching() throws IOException { |
| FunctionMatchQuery fmq = new FunctionMatchQuery(in, d -> d >= 2 && d < 4); |
| TopDocs docs = searcher.search(fmq, 10); |
| |
| assertEquals(2, docs.totalHits.value); |
| assertEquals(9, docs.scoreDocs[0].doc); |
| assertEquals(13, docs.scoreDocs[1].doc); |
| |
| QueryUtils.check(random(), fmq, searcher, rarely()); |
| |
| } |
| |
| public void testTwoPhaseIteratorMatchCost() throws IOException { |
| DoublePredicate predicate = d -> true; |
| |
| // should use default match cost |
| FunctionMatchQuery fmq = new FunctionMatchQuery(in, predicate); |
| assertEquals(DEFAULT_MATCH_COST, getMatchCost(fmq), 0.1); |
| |
| // should use client defined match cost |
| fmq = new FunctionMatchQuery(in, predicate, 200); |
| assertEquals(200, getMatchCost(fmq), 0.1); |
| } |
| |
| private static float getMatchCost(FunctionMatchQuery fmq) throws IOException { |
| LeafReaderContext ctx = reader.leaves().get(0); |
| return fmq.createWeight(searcher, ScoreMode.TOP_DOCS, 1) |
| .scorer(ctx) |
| .twoPhaseIterator() |
| .matchCost(); |
| } |
| } |