--- /dev/null
+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.MockDirectoryWrapper;
+import org.apache.lucene.analysis.MockAnalyzer;
+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 {
+ MockDirectoryWrapper dir = newDirectory();
+ dir.setPreventDoubleWrite(false);
+ IndexWriterConfig conf = newIndexWriterConfig(
+ TEST_VERSION_CURRENT, new WhitespaceAnalyzer(TEST_VERSION_CURRENT))
+ .setMaxBufferedDocs(10);
+ LogMergePolicy mergePolicy = newLogMergePolicy(true, 10);
+ mergePolicy.setNoCFSRatio(1); // This test expects all of its segments to be in CFS
+ conf.setMergePolicy(mergePolicy);
+
+ IndexWriter writer = new IndexWriter(
+ dir,
+ newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random)).
+ setMaxBufferedDocs(10).
+ setMergePolicy(mergePolicy)
+ );
+
+ writer.setInfoStream(VERBOSE ? System.out : null);
+
+ int i;
+ for(i=0;i<35;i++) {
+ addDoc(writer, i);
+ }
+ mergePolicy.setUseCompoundFile(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_2", "segments");
+ copyFile(dir, "segments_2", "segments_1");
+
+ // Create a bogus cfs file shadowing a non-cfs segment:
+ assertTrue(dir.fileExists("_3.fdt"));
+ 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)+"\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(newField("content", "aaa", Field.Store.NO, Field.Index.ANALYZED));
+ doc.add(newField("id", Integer.toString(id), Field.Store.YES, Field.Index.NOT_ANALYZED));
+ writer.addDocument(doc);
+ }
+}
fnp / pylucene.git / blobdiff