| using Lucene.Net.Documents; |
| using Lucene.Net.Expressions.JS; |
| using Lucene.Net.Index; |
| using Lucene.Net.Search; |
| using Lucene.Net.Store; |
| using Lucene.Net.Util; |
| using NUnit.Framework; |
| using Assert = Lucene.Net.TestFramework.Assert; |
| |
| namespace Lucene.Net.Expressions |
| { |
| /* |
| * 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. |
| */ |
| |
| [SuppressCodecs("Lucene3x")] |
| public class TestExpressionRescorer : LuceneTestCase |
| { |
| internal IndexSearcher searcher; |
| |
| internal DirectoryReader reader; |
| |
| internal Directory dir; |
| |
| [SetUp] |
| public override void SetUp() |
| { |
| base.SetUp(); |
| dir = NewDirectory(); |
| var iw = new RandomIndexWriter( |
| #if FEATURE_INSTANCE_TESTDATA_INITIALIZATION |
| this, |
| #endif |
| Random, dir); |
| var doc = new Document |
| { |
| NewStringField("id", "1", Field.Store.YES), |
| NewTextField("body", "some contents and more contents", Field.Store.NO), |
| new NumericDocValuesField("popularity", 5) |
| }; |
| iw.AddDocument(doc); |
| doc = new Document |
| { |
| NewStringField("id", "2", Field.Store.YES), |
| NewTextField("body", "another document with different contents", Field.Store |
| .NO), |
| new NumericDocValuesField("popularity", 20) |
| }; |
| iw.AddDocument(doc); |
| doc = new Document |
| { |
| NewStringField("id", "3", Field.Store.YES), |
| NewTextField("body", "crappy contents", Field.Store.NO), |
| new NumericDocValuesField("popularity", 2) |
| }; |
| iw.AddDocument(doc); |
| reader = iw.GetReader(); |
| searcher = new IndexSearcher(reader); |
| iw.Dispose(); |
| } |
| |
| [TearDown] |
| public override void TearDown() |
| { |
| reader.Dispose(); |
| dir.Dispose(); |
| base.TearDown(); |
| } |
| |
| [Test] |
| public virtual void TestBasic() |
| { |
| // create a sort field and sort by it (reverse order) |
| Query query = new TermQuery(new Term("body", "contents")); |
| IndexReader r = searcher.IndexReader; |
| // Just first pass query |
| TopDocs hits = searcher.Search(query, 10); |
| Assert.AreEqual(3, hits.TotalHits); |
| Assert.AreEqual("3", r.Document(hits.ScoreDocs[0].Doc).Get("id")); |
| Assert.AreEqual("1", r.Document(hits.ScoreDocs[1].Doc).Get("id")); |
| Assert.AreEqual("2", r.Document(hits.ScoreDocs[2].Doc).Get("id")); |
| // Now, rescore: |
| Expression e = JavascriptCompiler.Compile("sqrt(_score) + ln(popularity)"); |
| SimpleBindings bindings = new SimpleBindings(); |
| bindings.Add(new SortField("popularity", SortFieldType.INT32)); |
| bindings.Add(new SortField("_score", SortFieldType.SCORE)); |
| Rescorer rescorer = e.GetRescorer(bindings); |
| hits = rescorer.Rescore(searcher, hits, 10); |
| Assert.AreEqual(3, hits.TotalHits); |
| Assert.AreEqual("2", r.Document(hits.ScoreDocs[0].Doc).Get("id")); |
| Assert.AreEqual("1", r.Document(hits.ScoreDocs[1].Doc).Get("id")); |
| Assert.AreEqual("3", r.Document(hits.ScoreDocs[2].Doc).Get("id")); |
| string expl = rescorer.Explain(searcher, searcher.Explain(query, hits.ScoreDocs[0].Doc), hits.ScoreDocs[0].Doc).ToString(); |
| // Confirm the explanation breaks out the individual |
| // variables: |
| Assert.IsTrue(expl.Contains("= variable \"popularity\"")); |
| // Confirm the explanation includes first pass details: |
| Assert.IsTrue(expl.Contains("= first pass score")); |
| Assert.IsTrue(expl.Contains("body:contents in")); |
| } |
| } |
| } |