| /* |
| * 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.expressions; |
| |
| |
| import java.util.Arrays; |
| import java.util.Collections; |
| |
| import org.apache.lucene.document.Document; |
| import org.apache.lucene.document.DoubleDocValuesField; |
| import org.apache.lucene.document.Field; |
| import org.apache.lucene.document.FloatDocValuesField; |
| import org.apache.lucene.document.NumericDocValuesField; |
| import org.apache.lucene.expressions.js.JavascriptCompiler; |
| import org.apache.lucene.index.IndexReader; |
| import org.apache.lucene.index.RandomIndexWriter; |
| import org.apache.lucene.index.Term; |
| import org.apache.lucene.search.BooleanClause; |
| import org.apache.lucene.search.BooleanQuery; |
| import org.apache.lucene.search.CheckHits; |
| import org.apache.lucene.search.DoubleValuesSource; |
| import org.apache.lucene.search.IndexSearcher; |
| import org.apache.lucene.search.MatchAllDocsQuery; |
| import org.apache.lucene.search.Query; |
| import org.apache.lucene.search.Sort; |
| import org.apache.lucene.search.SortField; |
| import org.apache.lucene.search.TermQuery; |
| import org.apache.lucene.search.TopDocs; |
| import org.apache.lucene.store.Directory; |
| import org.apache.lucene.util.ArrayUtil; |
| import org.apache.lucene.util.English; |
| import org.apache.lucene.util.LuceneTestCase; |
| import org.apache.lucene.util.TestUtil; |
| |
| /** |
| * Tests some basic expressions against different queries, |
| * and fieldcache/docvalues fields against an equivalent sort. |
| */ |
| public class TestExpressionSorts extends LuceneTestCase { |
| private Directory dir; |
| private IndexReader reader; |
| private IndexSearcher searcher; |
| |
| @Override |
| public void setUp() throws Exception { |
| super.setUp(); |
| dir = newDirectory(); |
| RandomIndexWriter iw = new RandomIndexWriter(random(), dir); |
| int numDocs = atLeast(500); |
| for (int i = 0; i < numDocs; i++) { |
| Document document = new Document(); |
| document.add(newTextField("english", English.intToEnglish(i), Field.Store.NO)); |
| document.add(newTextField("oddeven", (i % 2 == 0) ? "even" : "odd", Field.Store.NO)); |
| document.add(new NumericDocValuesField("int", random().nextInt())); |
| document.add(new NumericDocValuesField("long", random().nextLong())); |
| document.add(new FloatDocValuesField("float", random().nextFloat())); |
| document.add(new DoubleDocValuesField("double", random().nextDouble())); |
| iw.addDocument(document); |
| } |
| reader = iw.getReader(); |
| iw.close(); |
| searcher = newSearcher(reader); |
| } |
| |
| @Override |
| public void tearDown() throws Exception { |
| reader.close(); |
| dir.close(); |
| super.tearDown(); |
| } |
| |
| public void testQueries() throws Exception { |
| int n = atLeast(1); |
| for (int i = 0; i < n; i++) { |
| assertQuery(new MatchAllDocsQuery()); |
| assertQuery(new TermQuery(new Term("english", "one"))); |
| BooleanQuery.Builder bq = new BooleanQuery.Builder(); |
| bq.add(new TermQuery(new Term("english", "one")), BooleanClause.Occur.SHOULD); |
| bq.add(new TermQuery(new Term("oddeven", "even")), BooleanClause.Occur.SHOULD); |
| assertQuery(bq.build()); |
| // force in order |
| bq.add(new TermQuery(new Term("english", "two")), BooleanClause.Occur.SHOULD); |
| bq.setMinimumNumberShouldMatch(2); |
| assertQuery(bq.build()); |
| } |
| } |
| |
| void assertQuery(Query query) throws Exception { |
| for (int i = 0; i < 10; i++) { |
| boolean reversed = random().nextBoolean(); |
| SortField fields[] = new SortField[] { |
| new SortField("int", SortField.Type.INT, reversed), |
| new SortField("long", SortField.Type.LONG, reversed), |
| new SortField("float", SortField.Type.FLOAT, reversed), |
| new SortField("double", SortField.Type.DOUBLE, reversed), |
| new SortField("score", SortField.Type.SCORE) |
| }; |
| Collections.shuffle(Arrays.asList(fields), random()); |
| int numSorts = TestUtil.nextInt(random(), 1, fields.length); |
| assertQuery(query, new Sort(ArrayUtil.copyOfSubArray(fields, 0, numSorts))); |
| } |
| } |
| |
| void assertQuery(Query query, Sort sort) throws Exception { |
| int size = TestUtil.nextInt(random(), 1, searcher.getIndexReader().maxDoc() / 5); |
| TopDocs expected = searcher.search(query, size, sort, random().nextBoolean()); |
| |
| // make our actual sort, mutating original by replacing some of the |
| // sortfields with equivalent expressions |
| |
| SortField original[] = sort.getSort(); |
| SortField mutated[] = new SortField[original.length]; |
| for (int i = 0; i < mutated.length; i++) { |
| if (random().nextInt(3) > 0) { |
| SortField s = original[i]; |
| Expression expr = JavascriptCompiler.compile(s.getField()); |
| SimpleBindings simpleBindings = new SimpleBindings(); |
| simpleBindings.add(s.getField(), fromSortField(s)); |
| boolean reverse = s.getType() == SortField.Type.SCORE || s.getReverse(); |
| mutated[i] = expr.getSortField(simpleBindings, reverse); |
| } else { |
| mutated[i] = original[i]; |
| } |
| } |
| |
| Sort mutatedSort = new Sort(mutated); |
| TopDocs actual = searcher.search(query, size, mutatedSort, random().nextBoolean()); |
| CheckHits.checkEqual(query, expected.scoreDocs, actual.scoreDocs); |
| |
| if (size < actual.totalHits.value) { |
| expected = searcher.searchAfter(expected.scoreDocs[size-1], query, size, sort); |
| actual = searcher.searchAfter(actual.scoreDocs[size-1], query, size, mutatedSort); |
| CheckHits.checkEqual(query, expected.scoreDocs, actual.scoreDocs); |
| } |
| } |
| |
| private DoubleValuesSource fromSortField(SortField field) { |
| switch(field.getType()) { |
| case INT: |
| return DoubleValuesSource.fromIntField(field.getField()); |
| case LONG: |
| return DoubleValuesSource.fromLongField(field.getField()); |
| case FLOAT: |
| return DoubleValuesSource.fromFloatField(field.getField()); |
| case DOUBLE: |
| return DoubleValuesSource.fromDoubleField(field.getField()); |
| case SCORE: |
| return DoubleValuesSource.SCORES; |
| default: |
| throw new UnsupportedOperationException(); |
| } |
| } |
| } |
| |