| 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 java.io.*; |
| import java.util.*; |
| |
| import org.apache.lucene.analysis.MockAnalyzer; |
| import org.apache.lucene.codecs.Codec; |
| import org.apache.lucene.document.Document; |
| import org.apache.lucene.document.Field; |
| import org.apache.lucene.index.IndexWriterConfig.OpenMode; |
| import org.apache.lucene.store.Directory; |
| import org.apache.lucene.store.IndexInput; |
| import org.apache.lucene.store.IndexOutput; |
| import org.apache.lucene.store.MockDirectoryWrapper; |
| import org.apache.lucene.util.LuceneTestCase; |
| |
| /* |
| 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 = newDirectory(); |
| if (dir instanceof MockDirectoryWrapper) { |
| ((MockDirectoryWrapper)dir).setPreventDoubleWrite(false); |
| } |
| |
| MergePolicy mergePolicy = newLogMergePolicy(true, 10); |
| |
| // This test expects all of its segments to be in CFS |
| mergePolicy.setNoCFSRatio(1.0); |
| mergePolicy.setMaxCFSSegmentSizeMB(Double.POSITIVE_INFINITY); |
| |
| 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.getConfig().getMergePolicy().setNoCFSRatio(0.0); |
| writer.getConfig().setUseCompoundFile(false); |
| for(;i<45;i++) { |
| addDoc(writer, i); |
| } |
| writer.close(); |
| |
| // 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.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]); |
| } |
| */ |
| |
| // TODO: fix this test better |
| String ext = Codec.getDefault().getName().equals("SimpleText") ? ".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) |
| assertTrue(dir.fileExists("_3.fdt") || dir.fileExists("_3.fld")); |
| assertTrue(!dir.fileExists("_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.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)+"\ndiff: "+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, newIOContext(random())); |
| IndexOutput out = dir.createOutput(dest, newIOContext(random())); |
| 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(newTextField("content", "aaa", Field.Store.NO)); |
| doc.add(newStringField("id", Integer.toString(id), Field.Store.NO)); |
| writer.addDocument(doc); |
| } |
| } |