| /* |
| * 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. |
| */ |
| |
| using System; |
| |
| using NUnit.Framework; |
| |
| using WhitespaceAnalyzer = Lucene.Net.Analysis.WhitespaceAnalyzer; |
| using Document = Lucene.Net.Documents.Document; |
| using Field = Lucene.Net.Documents.Field; |
| using IndexReader = Lucene.Net.Index.IndexReader; |
| using IndexWriter = Lucene.Net.Index.IndexWriter; |
| using Term = Lucene.Net.Index.Term; |
| using RAMDirectory = Lucene.Net.Store.RAMDirectory; |
| using OpenBitSet = Lucene.Net.Util.OpenBitSet; |
| using LuceneTestCase = Lucene.Net.Util.LuceneTestCase; |
| using Lucene.Net.Store; |
| |
| namespace Lucene.Net.Search |
| { |
| |
| |
| /// <summary> </summary> |
| [TestFixture] |
| public class TestFilteredSearch:LuceneTestCase |
| { |
| |
| public TestFilteredSearch(): base("") |
| { |
| } |
| |
| private const System.String FIELD = "category"; |
| |
| [Test] |
| public virtual void TestFilteredSearch_Renamed() |
| { |
| bool enforceSingleSegment = true; |
| RAMDirectory directory = new RAMDirectory(); |
| int[] filterBits = { 1, 36 }; |
| SimpleDocIdSetFilter filter = new SimpleDocIdSetFilter(filterBits); |
| IndexWriter writer = new IndexWriter(directory, new WhitespaceAnalyzer(), true, IndexWriter.MaxFieldLength.LIMITED); |
| SearchFiltered(writer, directory, filter, enforceSingleSegment); |
| // run the test on more than one segment |
| enforceSingleSegment = false; |
| // reset - it is stateful |
| filter.Reset(); |
| writer = new IndexWriter(directory, new WhitespaceAnalyzer(), true, IndexWriter.MaxFieldLength.LIMITED); |
| // we index 60 docs - this will create 6 segments |
| writer.SetMaxBufferedDocs(10); |
| SearchFiltered(writer, directory, filter, enforceSingleSegment); |
| } |
| |
| |
| public void SearchFiltered(IndexWriter writer, Directory directory, Filter filter, bool optimize) |
| { |
| try |
| { |
| for (int i = 0; i < 60; i++) |
| {//Simple docs |
| Document doc = new Document(); |
| doc.Add(new Field(FIELD, i.ToString(), Field.Store.YES, Field.Index.NOT_ANALYZED)); |
| writer.AddDocument(doc); |
| } |
| if (optimize) |
| writer.Optimize(); |
| writer.Close(); |
| |
| BooleanQuery booleanQuery = new BooleanQuery(); |
| booleanQuery.Add(new TermQuery(new Term(FIELD, "36")), Occur.SHOULD); |
| |
| |
| IndexSearcher indexSearcher = new IndexSearcher(directory); |
| ScoreDoc[] hits = indexSearcher.Search(booleanQuery, filter, 1000).ScoreDocs; |
| Assert.AreEqual(1, hits.Length, "Number of matched documents"); |
| |
| } |
| catch (System.IO.IOException e) |
| { |
| Assert.Fail(e.Message); |
| } |
| |
| } |
| |
| |
| [Serializable] |
| public sealed class SimpleDocIdSetFilter : Filter |
| { |
| private int docBase; |
| private int[] docs; |
| private int index; |
| public SimpleDocIdSetFilter(int[] docs) |
| { |
| this.docs = docs; |
| } |
| public override DocIdSet GetDocIdSet(IndexReader reader) |
| { |
| OpenBitSet set = new OpenBitSet(); |
| int limit = docBase + reader.MaxDoc; |
| for (; index < docs.Length; index++) |
| { |
| int docId = docs[index]; |
| if (docId > limit) |
| break; |
| set.Set(docId - docBase); |
| } |
| docBase = limit; |
| return set.IsEmpty() ? null : set; |
| } |
| |
| public void Reset() |
| { |
| index = 0; |
| docBase = 0; |
| } |
| } |
| } |
| } |