| using Lucene.Net.Documents; |
| using Lucene.Net.Support; |
| using NUnit.Framework; |
| using System; |
| using System.Collections.Generic; |
| using Assert = Lucene.Net.TestFramework.Assert; |
| using Console = Lucene.Net.Util.SystemConsole; |
| |
| namespace Lucene.Net.Search |
| { |
| /* |
| * 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 AtomicReaderContext = Lucene.Net.Index.AtomicReaderContext; |
| using Directory = Lucene.Net.Store.Directory; |
| using Document = Documents.Document; |
| using Field = Field; |
| using IBits = Lucene.Net.Util.IBits; |
| using IndexReader = Lucene.Net.Index.IndexReader; |
| using LuceneTestCase = Lucene.Net.Util.LuceneTestCase; |
| using RandomIndexWriter = Lucene.Net.Index.RandomIndexWriter; |
| |
| [TestFixture] |
| public class TestDocIdSet : LuceneTestCase |
| { |
| [Test] |
| public virtual void TestFilteredDocIdSet() |
| { |
| const int maxdoc = 10; |
| DocIdSet innerSet = new DocIdSetAnonymousClass(this, maxdoc); |
| |
| DocIdSet filteredSet = new FilteredDocIdSetAnonymousClass(this, innerSet); |
| |
| DocIdSetIterator iter = filteredSet.GetIterator(); |
| List<int?> list = new List<int?>(); |
| int doc = iter.Advance(3); |
| if (doc != DocIdSetIterator.NO_MORE_DOCS) |
| { |
| list.Add(Convert.ToInt32(doc)); |
| while ((doc = iter.NextDoc()) != DocIdSetIterator.NO_MORE_DOCS) |
| { |
| list.Add(Convert.ToInt32(doc)); |
| } |
| } |
| |
| int[] docs = new int[list.Count]; |
| int c = 0; |
| IEnumerator<int?> intIter = list.GetEnumerator(); |
| while (intIter.MoveNext()) |
| { |
| docs[c++] = (int)intIter.Current; |
| } |
| int[] answer = new int[] { 4, 6, 8 }; |
| bool same = Arrays.Equals(answer, docs); |
| if (!same) |
| { |
| Console.WriteLine("answer: " + Arrays.ToString(answer)); |
| Console.WriteLine("gotten: " + Arrays.ToString(docs)); |
| Assert.Fail(); |
| } |
| } |
| |
| private class DocIdSetAnonymousClass : DocIdSet |
| { |
| private readonly TestDocIdSet outerInstance; |
| |
| private readonly int maxdoc; |
| |
| public DocIdSetAnonymousClass(TestDocIdSet outerInstance, int maxdoc) |
| { |
| this.outerInstance = outerInstance; |
| this.maxdoc = maxdoc; |
| } |
| |
| public override DocIdSetIterator GetIterator() |
| { |
| return new DocIdSetIteratorAnonymousClass(this); |
| } |
| |
| private class DocIdSetIteratorAnonymousClass : DocIdSetIterator |
| { |
| private readonly DocIdSetAnonymousClass outerInstance; |
| |
| public DocIdSetIteratorAnonymousClass(DocIdSetAnonymousClass outerInstance) |
| { |
| this.outerInstance = outerInstance; |
| docid = -1; |
| } |
| |
| internal int docid; |
| |
| public override int DocID => docid; |
| |
| public override int NextDoc() |
| { |
| docid++; |
| return docid < outerInstance.maxdoc ? docid : (docid = NO_MORE_DOCS); |
| } |
| |
| public override int Advance(int target) |
| { |
| return SlowAdvance(target); |
| } |
| |
| public override long GetCost() |
| { |
| return 1; |
| } |
| } |
| } |
| |
| private class FilteredDocIdSetAnonymousClass : FilteredDocIdSet |
| { |
| private readonly TestDocIdSet outerInstance; |
| |
| public FilteredDocIdSetAnonymousClass(TestDocIdSet outerInstance, DocIdSet innerSet) |
| : base(innerSet) |
| { |
| this.outerInstance = outerInstance; |
| } |
| |
| protected override bool Match(int docid) |
| { |
| return docid % 2 == 0; //validate only even docids |
| } |
| } |
| |
| [Test] |
| public virtual void TestNullDocIdSet() |
| { |
| // Tests that if a Filter produces a null DocIdSet, which is given to |
| // IndexSearcher, everything works fine. this came up in LUCENE-1754. |
| Directory dir = NewDirectory(); |
| RandomIndexWriter writer = new RandomIndexWriter( |
| #if FEATURE_INSTANCE_TESTDATA_INITIALIZATION |
| this, |
| #endif |
| Random, dir); |
| Document doc = new Document(); |
| doc.Add(NewStringField("c", "val", Field.Store.NO)); |
| writer.AddDocument(doc); |
| IndexReader reader = writer.GetReader(); |
| writer.Dispose(); |
| |
| // First verify the document is searchable. |
| IndexSearcher searcher = NewSearcher(reader); |
| Assert.AreEqual(1, searcher.Search(new MatchAllDocsQuery(), 10).TotalHits); |
| |
| // Now search w/ a Filter which returns a null DocIdSet |
| Filter f = new FilterAnonymousClass(this); |
| |
| Assert.AreEqual(0, searcher.Search(new MatchAllDocsQuery(), f, 10).TotalHits); |
| reader.Dispose(); |
| dir.Dispose(); |
| } |
| |
| private class FilterAnonymousClass : Filter |
| { |
| private readonly TestDocIdSet outerInstance; |
| |
| public FilterAnonymousClass(TestDocIdSet outerInstance) |
| { |
| this.outerInstance = outerInstance; |
| } |
| |
| public override DocIdSet GetDocIdSet(AtomicReaderContext context, IBits acceptDocs) |
| { |
| return null; |
| } |
| } |
| |
| [Test] |
| public virtual void TestNullIteratorFilteredDocIdSet() |
| { |
| Directory dir = NewDirectory(); |
| RandomIndexWriter writer = new RandomIndexWriter( |
| #if FEATURE_INSTANCE_TESTDATA_INITIALIZATION |
| this, |
| #endif |
| Random, dir); |
| Document doc = new Document(); |
| doc.Add(NewStringField("c", "val", Field.Store.NO)); |
| writer.AddDocument(doc); |
| IndexReader reader = writer.GetReader(); |
| writer.Dispose(); |
| |
| // First verify the document is searchable. |
| IndexSearcher searcher = NewSearcher(reader); |
| Assert.AreEqual(1, searcher.Search(new MatchAllDocsQuery(), 10).TotalHits); |
| |
| // Now search w/ a Filter which returns a null DocIdSet |
| Filter f = new FilterAnonymousClass2(this); |
| |
| Assert.AreEqual(0, searcher.Search(new MatchAllDocsQuery(), f, 10).TotalHits); |
| reader.Dispose(); |
| dir.Dispose(); |
| } |
| |
| private class FilterAnonymousClass2 : Filter |
| { |
| private readonly TestDocIdSet outerInstance; |
| |
| public FilterAnonymousClass2(TestDocIdSet outerInstance) |
| { |
| this.outerInstance = outerInstance; |
| } |
| |
| public override DocIdSet GetDocIdSet(AtomicReaderContext context, IBits acceptDocs) |
| { |
| DocIdSet innerNullIteratorSet = new DocIdSetAnonymousClass2(this); |
| return new FilteredDocIdSetAnonymousClass2(this, innerNullIteratorSet); |
| } |
| |
| private class DocIdSetAnonymousClass2 : DocIdSet |
| { |
| private readonly FilterAnonymousClass2 outerInstance; |
| |
| public DocIdSetAnonymousClass2(FilterAnonymousClass2 outerInstance) |
| { |
| this.outerInstance = outerInstance; |
| } |
| |
| public override DocIdSetIterator GetIterator() |
| { |
| return null; |
| } |
| } |
| |
| private class FilteredDocIdSetAnonymousClass2 : FilteredDocIdSet |
| { |
| private readonly FilterAnonymousClass2 outerInstance; |
| |
| public FilteredDocIdSetAnonymousClass2(FilterAnonymousClass2 outerInstance, DocIdSet innerNullIteratorSet) |
| : base(innerNullIteratorSet) |
| { |
| this.outerInstance = outerInstance; |
| } |
| |
| protected override bool Match(int docid) |
| { |
| return true; |
| } |
| } |
| } |
| } |
| } |