| using Lucene.Net.Documents; |
| using Lucene.Net.Index.Extensions; |
| using NUnit.Framework; |
| using System.Text; |
| |
| namespace Lucene.Net.Store |
| { |
| /* |
| * 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 DirectoryReader = Lucene.Net.Index.DirectoryReader; |
| using Document = Documents.Document; |
| using Field = Field; |
| using IndexReader = Lucene.Net.Index.IndexReader; |
| using IndexWriter = Lucene.Net.Index.IndexWriter; |
| using IndexWriterConfig = Lucene.Net.Index.IndexWriterConfig; |
| using LuceneTestCase = Lucene.Net.Util.LuceneTestCase; |
| using MockAnalyzer = Lucene.Net.Analysis.MockAnalyzer; |
| using OpenMode = Lucene.Net.Index.OpenMode; |
| |
| [TestFixture] |
| public class TestWindowsMMap : LuceneTestCase |
| { |
| private const string ALPHABET = "abcdefghijklmnopqrstuvwzyz"; |
| |
| [SetUp] |
| public override void SetUp() |
| { |
| base.SetUp(); |
| } |
| |
| private string RandomToken() |
| { |
| int tl = 1 + Random.Next(7); |
| StringBuilder sb = new StringBuilder(); |
| for (int cx = 0; cx < tl; cx++) |
| { |
| int c = Random.Next(25); |
| sb.Append(ALPHABET.Substring(c, 1)); |
| } |
| return sb.ToString(); |
| } |
| |
| private string RandomField() |
| { |
| int fl = 1 + Random.Next(3); |
| StringBuilder fb = new StringBuilder(); |
| for (int fx = 0; fx < fl; fx++) |
| { |
| fb.Append(RandomToken()); |
| fb.Append(" "); |
| } |
| return fb.ToString(); |
| } |
| |
| [Test] |
| public virtual void TestMmapIndex() |
| { |
| // sometimes the directory is not cleaned by rmDir, because on Windows it |
| // may take some time until the files are finally dereferenced. So clean the |
| // directory up front, or otherwise new IndexWriter will fail. |
| var dirPath = CreateTempDir("testLuceneMmap"); |
| RmDir(dirPath.FullName); |
| var dir = new MMapDirectory(dirPath, null); |
| |
| // plan to add a set of useful stopwords, consider changing some of the |
| // interior filters. |
| using var analyzer = new MockAnalyzer(Random); |
| // TODO: something about lock timeouts and leftover locks. |
| using (var writer = new IndexWriter(dir, |
| new IndexWriterConfig(TEST_VERSION_CURRENT, analyzer).SetOpenMode( |
| OpenMode.CREATE))) |
| { |
| writer.Commit(); |
| using IndexReader reader = DirectoryReader.Open(dir); |
| var searcher = NewSearcher(reader); |
| var num = AtLeast(1000); |
| for (int dx = 0; dx < num; dx++) |
| { |
| var f = RandomField(); |
| var doc = new Document(); |
| doc.Add(NewTextField("data", f, Field.Store.YES)); |
| writer.AddDocument(doc); |
| } |
| } |
| |
| RmDir(dirPath.FullName); |
| } |
| |
| private static void RmDir(string dir) |
| { |
| if (!System.IO.Directory.Exists(dir)) |
| { |
| return; |
| } |
| |
| foreach (string f in System.IO.Directory.GetFiles(dir)) |
| { |
| System.IO.File.Delete(f); |
| } |
| |
| System.IO.Directory.Delete(dir); |
| } |
| } |
| } |