| package org.apache.lucene.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. |
| */ |
| |
| import org.apache.lucene.util.LuceneTestCase; |
| import org.apache.lucene.store.Directory; |
| import org.apache.lucene.store.IndexInput; |
| import org.apache.lucene.store.IndexOutput; |
| import org.apache.lucene.store.RAMDirectory; |
| import org.apache.lucene.analysis.WhitespaceAnalyzer; |
| import org.apache.lucene.document.Document; |
| import org.apache.lucene.document.Field; |
| import org.apache.lucene.index.IndexWriterConfig.OpenMode; |
| |
| import java.io.*; |
| import java.util.*; |
| |
| /* |
| Verify we can read the pre-2.1 file format, do searches |
| against it, and add documents to it. |
| */ |
| |
| public class TestIndexFileDeleter extends LuceneTestCase { |
| |
| public void testDeleteLeftoverFiles() throws IOException { |
| |
| Directory dir = new RAMDirectory(); |
| |
| IndexWriter writer = new IndexWriter(dir, new IndexWriterConfig( |
| TEST_VERSION_CURRENT, new WhitespaceAnalyzer(TEST_VERSION_CURRENT)) |
| .setMaxBufferedDocs(10)); |
| int i; |
| for(i=0;i<35;i++) { |
| addDoc(writer, i); |
| } |
| ((LogMergePolicy) writer.getConfig().getMergePolicy()).setUseCompoundFile(false); |
| ((LogMergePolicy) writer.getConfig().getMergePolicy()).setUseCompoundDocStore(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); |
| assertEquals("didn't delete the right number of documents", 1, delCount); |
| |
| // 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: |
| 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.equals("content")) { |
| contentFieldIndex = i; |
| break; |
| } |
| } |
| cfsReader.close(); |
| assertTrue("could not locate the 'content' field number in the _2.cfs segment", contentFieldIndex != -1); |
| |
| 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"); |
| |
| String[] filesPre = dir.listAll(); |
| |
| // Open & close a writer: it should delete the above 4 |
| // files and nothing more: |
| writer = new IndexWriter(dir, new IndexWriterConfig(TEST_VERSION_CURRENT, new WhitespaceAnalyzer(TEST_VERSION_CURRENT)).setOpenMode(OpenMode.APPEND)); |
| writer.close(); |
| |
| String[] files2 = dir.listAll(); |
| dir.close(); |
| |
| Arrays.sort(files); |
| Arrays.sort(files2); |
| |
| Set<String> dif = difFiles(files, files2); |
| |
| if (!Arrays.equals(files, files2)) { |
| 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: "+dif); |
| } |
| } |
| |
| private static Set<String> difFiles(String[] files1, String[] files2) { |
| Set<String> set1 = new HashSet<String>(); |
| Set<String> set2 = new HashSet<String>(); |
| Set<String> extra = new 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]); |
| } |
| Iterator<String> i1 = set1.iterator(); |
| while (i1.hasNext()) { |
| String o = i1.next(); |
| if (!set2.contains(o)) { |
| extra.add(o); |
| } |
| } |
| Iterator<String> i2 = set2.iterator(); |
| while (i2.hasNext()) { |
| String o = i2.next(); |
| 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 void copyFile(Directory dir, String src, String dest) throws IOException { |
| IndexInput in = dir.openInput(src); |
| IndexOutput out = dir.createOutput(dest); |
| byte[] 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.close(); |
| out.close(); |
| } |
| |
| private void addDoc(IndexWriter writer, int id) throws IOException |
| { |
| Document doc = new Document(); |
| doc.add(new Field("content", "aaa", Field.Store.NO, Field.Index.ANALYZED)); |
| doc.add(new Field("id", Integer.toString(id), Field.Store.YES, Field.Index.NOT_ANALYZED)); |
| writer.addDocument(doc); |
| } |
| } |