| /* |
| * 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 Lucene.Net.Support; |
| using NUnit.Framework; |
| |
| using WhitespaceAnalyzer = Lucene.Net.Analysis.WhitespaceAnalyzer; |
| using Document = Lucene.Net.Documents.Document; |
| using Field = Lucene.Net.Documents.Field; |
| using Directory = Lucene.Net.Store.Directory; |
| using IndexInput = Lucene.Net.Store.IndexInput; |
| using IndexOutput = Lucene.Net.Store.IndexOutput; |
| using RAMDirectory = Lucene.Net.Store.RAMDirectory; |
| using LuceneTestCase = Lucene.Net.Util.LuceneTestCase; |
| |
| namespace Lucene.Net.Index |
| { |
| |
| /* |
| 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 = new RAMDirectory(); |
| |
| IndexWriter writer = new IndexWriter(dir, new WhitespaceAnalyzer(), true, IndexWriter.MaxFieldLength.LIMITED); |
| writer.SetMaxBufferedDocs(10); |
| int i; |
| for (i = 0; i < 35; i++) |
| { |
| AddDoc(writer, i); |
| } |
| writer.UseCompoundFile = false; |
| for (; i < 45; i++) |
| { |
| AddDoc(writer, i); |
| } |
| writer.Close(); |
| |
| // Delete one doc so we get a .del file: |
| IndexReader reader = IndexReader.Open(dir, false); |
| Term searchTerm = new Term("id", "7"); |
| int delCount = reader.DeleteDocuments(searchTerm); |
| Assert.AreEqual(1, delCount, "didn't delete the right number of documents"); |
| |
| // Set one norm so we get a .s0 file: |
| reader.SetNorm(21, "content", (float) 1.5); |
| reader.Close(); |
| |
| // Now, artificially create an extra .del file & extra |
| // .s0 file: |
| System.String[] files = dir.ListAll(); |
| |
| /* |
| for(int j=0;j<files.length;j++) { |
| System.out.println(j + ": " + files[j]); |
| } |
| */ |
| |
| // The numbering of fields can vary depending on which |
| // JRE is in use. On some JREs we see content bound to |
| // field 0; on others, field 1. So, here we have to |
| // figure out which field number corresponds to |
| // "content", and then set our expected file names below |
| // accordingly: |
| CompoundFileReader cfsReader = new CompoundFileReader(dir, "_2.cfs"); |
| FieldInfos fieldInfos = new FieldInfos(cfsReader, "_2.fnm"); |
| int contentFieldIndex = - 1; |
| for (i = 0; i < fieldInfos.Size(); i++) |
| { |
| FieldInfo fi = fieldInfos.FieldInfo(i); |
| if (fi.name_ForNUnit.Equals("content")) |
| { |
| contentFieldIndex = i; |
| break; |
| } |
| } |
| cfsReader.Close(); |
| Assert.IsTrue(contentFieldIndex != - 1, "could not locate the 'content' field number in the _2.cfs segment"); |
| |
| System.String normSuffix = "s" + contentFieldIndex; |
| |
| // Create a bogus separate norms file for a |
| // segment/field that actually has a separate norms file |
| // already: |
| CopyFile(dir, "_2_1." + normSuffix, "_2_2." + normSuffix); |
| |
| // Create a bogus separate norms file for a |
| // segment/field that actually has a separate norms file |
| // already, using the "not compound file" extension: |
| CopyFile(dir, "_2_1." + normSuffix, "_2_2.f" + contentFieldIndex); |
| |
| // Create a bogus separate norms file for a |
| // segment/field that does not have a separate norms |
| // file already: |
| CopyFile(dir, "_2_1." + normSuffix, "_1_1." + normSuffix); |
| |
| // Create a bogus separate norms file for a |
| // segment/field that does not have a separate norms |
| // file already using the "not compound file" extension: |
| CopyFile(dir, "_2_1." + normSuffix, "_1_1.f" + contentFieldIndex); |
| |
| // Create a bogus separate del file for a |
| // segment that already has a separate del file: |
| CopyFile(dir, "_0_1.del", "_0_2.del"); |
| |
| // Create a bogus separate del file for a |
| // segment that does not yet have a separate del file: |
| CopyFile(dir, "_0_1.del", "_1_1.del"); |
| |
| // Create a bogus separate del file for a |
| // non-existent segment: |
| CopyFile(dir, "_0_1.del", "_188_1.del"); |
| |
| // 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 a deletable file: |
| CopyFile(dir, "_0.cfs", "deletable"); |
| |
| // Create some old segments file: |
| CopyFile(dir, "segments_3", "segments"); |
| CopyFile(dir, "segments_3", "segments_2"); |
| |
| // Create a bogus cfs file shadowing a non-cfs segment: |
| CopyFile(dir, "_2.cfs", "_3.cfs"); |
| |
| System.String[] filesPre = dir.ListAll(); |
| |
| // Open & close a writer: it should delete the above 4 |
| // files and nothing more: |
| writer = new IndexWriter(dir, new WhitespaceAnalyzer(), false, IndexWriter.MaxFieldLength.LIMITED); |
| writer.Close(); |
| |
| System.String[] files2 = dir.ListAll(); |
| dir.Close(); |
| |
| System.Array.Sort(files); |
| System.Array.Sort(files2); |
| |
| System.Collections.Hashtable dif = DifFiles(files, files2); |
| |
| if (!CollectionsHelper.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) + "\ndif: " + CollectionsHelper.CollectionToString(dif)); |
| } |
| } |
| |
| private static System.Collections.Hashtable DifFiles(System.String[] files1, System.String[] files2) |
| { |
| System.Collections.Hashtable set1 = new System.Collections.Hashtable(); |
| System.Collections.Hashtable set2 = new System.Collections.Hashtable(); |
| System.Collections.Hashtable extra = new System.Collections.Hashtable(); |
| for (int x = 0; x < files1.Length; x++) |
| { |
| CollectionsHelper.AddIfNotContains(set1, files1[x]); |
| } |
| for (int x = 0; x < files2.Length; x++) |
| { |
| CollectionsHelper.AddIfNotContains(set2, files2[x]); |
| } |
| System.Collections.IEnumerator i1 = set1.GetEnumerator(); |
| while (i1.MoveNext()) |
| { |
| System.Object o = i1.Current; |
| if (!set2.Contains(o)) |
| { |
| CollectionsHelper.AddIfNotContains(extra, o); |
| } |
| } |
| System.Collections.IEnumerator i2 = set2.GetEnumerator(); |
| while (i2.MoveNext()) |
| { |
| System.Object o = i2.Current; |
| if (!set1.Contains(o)) |
| { |
| CollectionsHelper.AddIfNotContains(extra, o); |
| } |
| } |
| return extra; |
| } |
| |
| private System.String AsString(System.String[] l) |
| { |
| System.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, System.String src, System.String dest) |
| { |
| IndexInput in_Renamed = dir.OpenInput(src); |
| IndexOutput out_Renamed = dir.CreateOutput(dest); |
| byte[] b = new byte[1024]; |
| long remainder = in_Renamed.Length(); |
| while (remainder > 0) |
| { |
| int len = (int) System.Math.Min(b.Length, remainder); |
| in_Renamed.ReadBytes(b, 0, len); |
| out_Renamed.WriteBytes(b, len); |
| remainder -= len; |
| } |
| in_Renamed.Close(); |
| out_Renamed.Close(); |
| } |
| |
| private void AddDoc(IndexWriter writer, int id) |
| { |
| Document doc = new Document(); |
| doc.Add(new Field("content", "aaa", Field.Store.NO, Field.Index.ANALYZED)); |
| doc.Add(new Field("id", System.Convert.ToString(id), Field.Store.YES, Field.Index.NOT_ANALYZED)); |
| writer.AddDocument(doc); |
| } |
| } |
| } |