| using Lucene.Net.Documents; |
| using Lucene.Net.Index.Extensions; |
| using Lucene.Net.Support; |
| using NUnit.Framework; |
| using System; |
| using System.Collections.Generic; |
| using Assert = Lucene.Net.TestFramework.Assert; |
| using JCG = J2N.Collections.Generic; |
| |
| namespace Lucene.Net.Index |
| { |
| /* |
| * 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 Codec = Lucene.Net.Codecs.Codec; |
| using Directory = Lucene.Net.Store.Directory; |
| using Document = Documents.Document; |
| using Field = Field; |
| using IndexInput = Lucene.Net.Store.IndexInput; |
| using IndexOutput = Lucene.Net.Store.IndexOutput; |
| using LuceneTestCase = Lucene.Net.Util.LuceneTestCase; |
| using MockAnalyzer = Lucene.Net.Analysis.MockAnalyzer; |
| using MockDirectoryWrapper = Lucene.Net.Store.MockDirectoryWrapper; |
| |
| /* |
| Verify we can read the pre-2.1 file format, do searches |
| against it, and add documents to it. |
| */ |
| |
| [TestFixture] |
| public class TestIndexFileDeleter : LuceneTestCase |
| { |
| [Test] |
| public virtual void TestDeleteLeftoverFiles() |
| { |
| Directory dir = NewDirectory(); |
| if (dir is MockDirectoryWrapper) |
| { |
| ((MockDirectoryWrapper)dir).PreventDoubleWrite = false; |
| } |
| |
| MergePolicy mergePolicy = NewLogMergePolicy(true, 10); |
| |
| // this test expects all of its segments to be in CFS |
| mergePolicy.NoCFSRatio = 1.0; |
| mergePolicy.MaxCFSSegmentSizeMB = double.PositiveInfinity; |
| |
| IndexWriter writer = new IndexWriter(dir, NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random)).SetMaxBufferedDocs(10).SetMergePolicy(mergePolicy).SetUseCompoundFile(true)); |
| |
| int i; |
| for (i = 0; i < 35; i++) |
| { |
| AddDoc(writer, i); |
| } |
| writer.Config.MergePolicy.NoCFSRatio = 0.0; |
| writer.Config.SetUseCompoundFile(false); |
| for (; i < 45; i++) |
| { |
| AddDoc(writer, i); |
| } |
| writer.Dispose(); |
| |
| // Delete one doc so we get a .del file: |
| writer = new IndexWriter(dir, NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random)).SetMergePolicy(NoMergePolicy.NO_COMPOUND_FILES).SetUseCompoundFile(true)); |
| Term searchTerm = new Term("id", "7"); |
| writer.DeleteDocuments(searchTerm); |
| writer.Dispose(); |
| |
| // Now, artificially create an extra .del file & extra |
| // .s0 file: |
| string[] files = dir.ListAll(); |
| |
| /* |
| for(int j=0;j<files.Length;j++) { |
| System.out.println(j + ": " + files[j]); |
| } |
| */ |
| |
| // TODO: fix this test better |
| string ext = Codec.Default.Name.Equals("SimpleText", StringComparison.Ordinal) ? ".liv" : ".del"; |
| |
| // Create a bogus separate del file for a |
| // segment that already has a separate del file: |
| CopyFile(dir, "_0_1" + ext, "_0_2" + ext); |
| |
| // Create a bogus separate del file for a |
| // segment that does not yet have a separate del file: |
| CopyFile(dir, "_0_1" + ext, "_1_1" + ext); |
| |
| // Create a bogus separate del file for a |
| // non-existent segment: |
| CopyFile(dir, "_0_1" + ext, "_188_1" + ext); |
| |
| // Create a bogus segment file: |
| CopyFile(dir, "_0.cfs", "_188.cfs"); |
| |
| // Create a bogus fnm file when the CFS already exists: |
| CopyFile(dir, "_0.cfs", "_0.fnm"); |
| |
| // Create some old segments file: |
| CopyFile(dir, "segments_2", "segments"); |
| CopyFile(dir, "segments_2", "segments_1"); |
| |
| // Create a bogus cfs file shadowing a non-cfs segment: |
| |
| // TODO: assert is bogus (relies upon codec-specific filenames) |
| Assert.IsTrue(SlowFileExists(dir, "_3.fdt") || SlowFileExists(dir, "_3.fld")); |
| Assert.IsTrue(!SlowFileExists(dir, "_3.cfs")); |
| CopyFile(dir, "_1.cfs", "_3.cfs"); |
| |
| string[] filesPre = dir.ListAll(); |
| |
| // Open & close a writer: it should delete the above 4 |
| // files and nothing more: |
| writer = new IndexWriter(dir, NewIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(Random)).SetOpenMode(OpenMode.APPEND)); |
| writer.Dispose(); |
| |
| string[] files2 = dir.ListAll(); |
| dir.Dispose(); |
| |
| Array.Sort(files); |
| Array.Sort(files2); |
| |
| ISet<string> dif = DifFiles(files, files2); |
| |
| if (!Arrays.Equals(files, files2)) |
| { |
| Assert.Fail("IndexFileDeleter failed to delete unreferenced extra files: should have deleted " + (filesPre.Length - files.Length) + " files but only deleted " + (filesPre.Length - files2.Length) + "; expected files:\n " + AsString(files) + "\n actual files:\n " + AsString(files2) + "\ndiff: " + dif); |
| } |
| } |
| |
| private static ISet<string> DifFiles(string[] files1, string[] files2) |
| { |
| ISet<string> set1 = new JCG.HashSet<string>(); |
| ISet<string> set2 = new JCG.HashSet<string>(); |
| ISet<string> extra = new JCG.HashSet<string>(); |
| |
| for (int x = 0; x < files1.Length; x++) |
| { |
| set1.Add(files1[x]); |
| } |
| for (int x = 0; x < files2.Length; x++) |
| { |
| set2.Add(files2[x]); |
| } |
| IEnumerator<string> i1 = set1.GetEnumerator(); |
| while (i1.MoveNext()) |
| { |
| string o = i1.Current; |
| if (!set2.Contains(o)) |
| { |
| extra.Add(o); |
| } |
| } |
| IEnumerator<string> i2 = set2.GetEnumerator(); |
| while (i2.MoveNext()) |
| { |
| string o = i2.Current; |
| if (!set1.Contains(o)) |
| { |
| extra.Add(o); |
| } |
| } |
| return extra; |
| } |
| |
| private string AsString(string[] l) |
| { |
| string s = ""; |
| for (int i = 0; i < l.Length; i++) |
| { |
| if (i > 0) |
| { |
| s += "\n "; |
| } |
| s += l[i]; |
| } |
| return s; |
| } |
| |
| public virtual void CopyFile(Directory dir, string src, string dest) |
| { |
| IndexInput @in = dir.OpenInput(src, NewIOContext(Random)); |
| IndexOutput @out = dir.CreateOutput(dest, NewIOContext(Random)); |
| var b = new byte[1024]; |
| long remainder = @in.Length; |
| while (remainder > 0) |
| { |
| int len = (int)Math.Min(b.Length, remainder); |
| @in.ReadBytes(b, 0, len); |
| @out.WriteBytes(b, len); |
| remainder -= len; |
| } |
| @in.Dispose(); |
| @out.Dispose(); |
| } |
| |
| private void AddDoc(IndexWriter writer, int id) |
| { |
| Document doc = new Document(); |
| doc.Add(NewTextField("content", "aaa", Field.Store.NO)); |
| doc.Add(NewStringField("id", Convert.ToString(id), Field.Store.NO)); |
| writer.AddDocument(doc); |
| } |
| } |
| } |