org.apache.lucene.index.IndexWriterConfig.OpenMode Java Examples

@Override
public boolean delete(SearchDto searchDto) throws IOException {
	IndexWriter writer = null;
	try {
		IndexWriterConfig conf = new IndexWriterConfig(new StandardAnalyzer());
		conf.setOpenMode(OpenMode.CREATE_OR_APPEND);
		writer = new IndexWriter(FSDirectory.open(Paths.get(settingCache.get(ISetting.S_LUCENE_DIR).getValue())), conf);
		writer.deleteDocuments(new Term(ID, searchDto.getId()));
	} catch (Exception e) {
		e.printStackTrace();
		stringCache.add(IConst.C_CACHE_ERROR_TIP, "Lucene删除异常，请联系管理员查看日志，错误信息：" + e.getMessage());
	} finally {
		if (writer != null) {
			writer.close();
		}
	}
	return true;
}
 

public void prepareIndex() throws IOException {
    File globalWFMDIr = new File(Util.GTPM_INDEX_DIR);
    if (!globalWFMDIr.exists()) {
        Util.createDirs(Util.GTPM_INDEX_DIR);
    }
    KeywordAnalyzer keywordAnalyzer = new KeywordAnalyzer();
    IndexWriterConfig wfmIndexWriterConfig = new IndexWriterConfig(Version.LUCENE_46, keywordAnalyzer);
    wfmIndexWriterConfig.setOpenMode(OpenMode.CREATE_OR_APPEND);
    wfmIndexWriterConfig.setRAMBufferSizeMB(1024);

    logger.info("PREPARE INDEX");
    try {
        wfmIndexWriter = new IndexWriter(FSDirectory.open(new File(Util.GTPM_INDEX_DIR)), wfmIndexWriterConfig);
        wfmIndexWriter.commit();
        wfmIndexer = new DocumentMaker(wfmIndexWriter);
    } catch (IOException e) {
        e.printStackTrace();
    }
}
 

public void testUpgradeWithNRTReader() throws Exception {
  for (String name : oldNames) {
    Directory dir = newDirectory(oldIndexDirs.get(name));

    IndexWriter writer = new IndexWriter(dir, newIndexWriterConfig(new MockAnalyzer(random()))
                                         .setOpenMode(OpenMode.APPEND));
    writer.addDocument(new Document());
    DirectoryReader r = DirectoryReader.open(writer);
    writer.commit();
    r.close();
    writer.forceMerge(1);
    writer.commit();
    writer.rollback();
    SegmentInfos.readLatestCommit(dir);
    dir.close();
  }
}
 

@Inject
public LucenePerUserWaveViewHandlerImpl(IndexDirectory directory,
                                        ReadableWaveletDataProvider waveletProvider,
                                        @Named(CoreSettingsNames.WAVE_SERVER_DOMAIN) String domain,
                                        @IndexExecutor Executor executor) {
  this.waveletProvider = waveletProvider;
  this.executor = executor;
  analyzer = new StandardAnalyzer(LUCENE_VERSION);
  try {
    IndexWriterConfig indexConfig = new IndexWriterConfig(LUCENE_VERSION, analyzer);
    indexConfig.setOpenMode(OpenMode.CREATE_OR_APPEND);
    indexWriter = new IndexWriter(directory.getDirectory(), indexConfig);
    nrtManager = new NRTManager(indexWriter, new WaveSearchWarmer(domain));
  } catch (IOException ex) {
    throw new IndexException(ex);
  }

  nrtManagerReopenThread = new NRTManagerReopenThread(nrtManager, MAX_STALE_SEC, MIN_STALE_SEC);
  nrtManagerReopenThread.start();
}
 

public void createRandomTerms(int nDocs, int nTerms, double power, Directory dir) throws Exception {
  int[] freq = new int[nTerms];
  Term[] terms = new Term[nTerms];
  for (int i=0; i<nTerms; i++) {
    int f = (nTerms+1)-i;  // make first terms less frequent
    freq[i] = (int)Math.ceil(Math.pow(f,power));
    terms[i] = new Term("f",Character.toString((char)('A'+i)));
  }

  IndexWriter iw = new IndexWriter(dir, newIndexWriterConfig(new MockAnalyzer(random())).setOpenMode(OpenMode.CREATE));
  for (int i=0; i<nDocs; i++) {
    Document d = new Document();
    for (int j=0; j<nTerms; j++) {
      if (random().nextInt(freq[j]) == 0) {
        d.add(newStringField("f", terms[j].text(), Field.Store.NO));
        //System.out.println(d);
      }
    }
    iw.addDocument(d);
  }
  iw.forceMerge(1);
  iw.close();
}
 

@Test
public void testGetCommitData() throws Exception {
  Directory dir = newDirectory();
  IndexWriter writer = new IndexWriter(dir, newIndexWriterConfig(null));
  writer.setLiveCommitData(new HashMap<String,String>() {{
    put("key", "value");
  }}.entrySet());
  assertEquals("value", getLiveCommitData(writer).get("key"));
  writer.close();

  // validate that it's also visible when opening a new IndexWriter
  writer = new IndexWriter(dir, newIndexWriterConfig(null)
                                  .setOpenMode(OpenMode.APPEND));
  assertEquals("value", getLiveCommitData(writer).get("key"));
  writer.close();

  dir.close();
}
 

@Override
public void initialize(UimaContext context)
        throws ResourceInitializationException {
    super.initialize(context);
    try {
        // create writer
        Directory dir;
        dir = FSDirectory.open(new File(INDEX_PATH));
        Analyzer analyzer = getAnalyzer();
        IndexWriterConfig iwc = new IndexWriterConfig(
                Version.LUCENE_41, analyzer);
        iwc.setOpenMode(OpenMode.CREATE);
        indexWriter = new IndexWriter(dir, iwc);
    } catch (IOException e) {
        e.printStackTrace();
    }
}
 

public void changeIndexNoAdds(Random random, Directory dir) throws IOException {
  // make sure searching sees right # hits
  DirectoryReader reader = DirectoryReader.open(dir);
  IndexSearcher searcher = newSearcher(reader);
  ScoreDoc[] hits = searcher.search(new TermQuery(new Term("content", "aaa")), 1000).scoreDocs;
  assertEquals("wrong number of hits", 34, hits.length);
  Document d = searcher.doc(hits[0].doc);
  assertEquals("wrong first document", "0", d.get("id"));
  reader.close();

  // fully merge
  IndexWriter writer = new IndexWriter(dir, newIndexWriterConfig(new MockAnalyzer(random))
                                              .setOpenMode(OpenMode.APPEND));
  writer.forceMerge(1);
  writer.close();

  reader = DirectoryReader.open(dir);
  searcher = newSearcher(reader);
  hits = searcher.search(new TermQuery(new Term("content", "aaa")), 1000).scoreDocs;
  assertEquals("wrong number of hits", 34, hits.length);
  doTestHits(hits, 34, searcher.getIndexReader());
  reader.close();
}
 

public void testOpenModeAndCreatedVersion() throws IOException {
  assumeTrue("Reenable when 8.0 is released", false);
  InputStream resource = getClass().getResourceAsStream("index.single-empty-doc.8.0.0.zip");
  assertNotNull(resource);
  Path path = createTempDir();
  TestUtil.unzip(resource, path);
  Directory dir = newFSDirectory(path);
  for (OpenMode openMode : OpenMode.values()) {
    Directory tmpDir = newDirectory(dir);
    assertEquals(7 /** 7.0.0 */, SegmentInfos.readLatestCommit(tmpDir).getIndexCreatedVersionMajor());
    IndexWriter w = new IndexWriter(tmpDir, newIndexWriterConfig().setOpenMode(openMode));
    w.commit();
    w.close();
    switch (openMode) {
      case CREATE:
        assertEquals(Version.LATEST.major, SegmentInfos.readLatestCommit(tmpDir).getIndexCreatedVersionMajor());
        break;
      default:
        assertEquals(7 /** 7.0.0 */, SegmentInfos.readLatestCommit(tmpDir).getIndexCreatedVersionMajor());
    }
    tmpDir.close();
  }
  dir.close();
}
 

@Test
public void testMergeUnusedPerFieldCodec() throws IOException {
  Directory dir = newDirectory();
  IndexWriterConfig iwconf = newIndexWriterConfig(new MockAnalyzer(random()))
                               .setOpenMode(OpenMode.CREATE).setCodec(new MockCodec());
  IndexWriter writer = newWriter(dir, iwconf);
  addDocs(writer, 10);
  writer.commit();
  addDocs3(writer, 10);
  writer.commit();
  addDocs2(writer, 10);
  writer.commit();
  assertEquals(30, writer.getDocStats().maxDoc);
  TestUtil.checkIndex(dir);
  writer.forceMerge(1);
  assertEquals(30, writer.getDocStats().maxDoc);
  writer.close();
  dir.close();
}
 

public void testIsCurrent() throws Exception {
  Directory d = newDirectory();
  IndexWriter writer = new IndexWriter(d, newIndexWriterConfig(new MockAnalyzer(random())));
  addDocumentWithFields(writer);
  writer.close();
  // set up reader:
  DirectoryReader reader = DirectoryReader.open(d);
  assertTrue(reader.isCurrent());
  // modify index by adding another document:
  writer = new IndexWriter(d, newIndexWriterConfig(new MockAnalyzer(random()))
                                .setOpenMode(OpenMode.APPEND));
  addDocumentWithFields(writer);
  writer.close();
  assertFalse(reader.isCurrent());
  // re-create index:
  writer = new IndexWriter(d, newIndexWriterConfig(new MockAnalyzer(random()))
                                .setOpenMode(OpenMode.CREATE));
  addDocumentWithFields(writer);
  writer.close();
  assertFalse(reader.isCurrent());
  reader.close();
  d.close();
}
 

public void testStressLocks() throws Exception {
  Path tempPath = createTempDir();
  assumeFalse("cannot handle buggy Files.delete", TestUtil.hasWindowsFS(tempPath));

  Directory dir = getDirectory(tempPath);

  // First create a 1 doc index:
  IndexWriter w = new IndexWriter(dir, new IndexWriterConfig(new MockAnalyzer(random())).setOpenMode(OpenMode.CREATE));
  addDoc(w);
  w.close();
  
  int numIterations = atLeast(20);
  WriterThread writer = new WriterThread(numIterations, dir);
  SearcherThread searcher = new SearcherThread(numIterations, dir);
  writer.start();
  searcher.start();

  writer.join();
  searcher.join();

  assertTrue("IndexWriter hit unexpected exceptions", !writer.hitException);
  assertTrue("IndexSearcher hit unexpected exceptions", !searcher.hitException);
  
  dir.close();
}
 

private void fillIndex(Random random, Directory dir, int start, int numDocs) throws IOException {

    IndexWriter writer = new IndexWriter(
        dir,
        newIndexWriterConfig(new MockAnalyzer(random))
            .setOpenMode(OpenMode.CREATE)
            .setMaxBufferedDocs(2)
            .setMergePolicy(newLogMergePolicy(2))
    );

    for (int i = start; i < (start + numDocs); i++)
    {
      Document temp = new Document();
      temp.add(newStringField("count", (""+i), Field.Store.YES));

      writer.addDocument(temp);
    }
    writer.close();
  }
 

/**
 * {@link PersistentSnapshotDeletionPolicy} wraps another
 * {@link IndexDeletionPolicy} to enable flexible snapshotting.
 * 
 * @param primary
 *          the {@link IndexDeletionPolicy} that is used on non-snapshotted
 *          commits. Snapshotted commits, by definition, are not deleted until
 *          explicitly released via {@link #release}.
 * @param dir
 *          the {@link Directory} which will be used to persist the snapshots
 *          information.
 * @param mode
 *          specifies whether a new index should be created, deleting all
 *          existing snapshots information (immediately), or open an existing
 *          index, initializing the class with the snapshots information.
 */
public PersistentSnapshotDeletionPolicy(IndexDeletionPolicy primary,
    Directory dir, OpenMode mode) throws IOException {
  super(primary);

  this.dir = dir;

  if (mode == OpenMode.CREATE) {
    clearPriorSnapshots();
  }

  loadPriorSnapshots();

  if (mode == OpenMode.APPEND && nextWriteGen == 0) {
    throw new IllegalStateException("no snapshots stored in this directory");
  }
}
 

@Test
public void testCommit() throws Exception {
  // Verifies that nothing is committed to the underlying Directory, if
  // commit() wasn't called.
  Directory dir = newDirectory();
  DirectoryTaxonomyWriter ltw = new DirectoryTaxonomyWriter(dir, OpenMode.CREATE_OR_APPEND, NO_OP_CACHE);
  assertFalse(DirectoryReader.indexExists(dir));
  ltw.commit(); // first commit, so that an index will be created
  ltw.addCategory(new FacetLabel("a"));
  
  IndexReader r = DirectoryReader.open(dir);
  assertEquals("No categories should have been committed to the underlying directory", 1, r.numDocs());
  r.close();
  ltw.close();
  dir.close();
}
 

public void testWithPendingDeletes() throws IOException {
  // main directory
  Directory dir = newDirectory();
  // auxiliary directory
  Directory aux = newDirectory();

  setUpDirs(dir, aux);
  IndexWriter writer = newWriter(dir, newIndexWriterConfig(new MockAnalyzer(random())).setOpenMode(OpenMode.APPEND));
  writer.addIndexes(aux);

  // Adds 10 docs, then replaces them with another 10
  // docs, so 10 pending deletes:
  for (int i = 0; i < 20; i++) {
    Document doc = new Document();
    doc.add(newStringField("id", "" + (i % 10), Field.Store.NO));
    doc.add(newTextField("content", "bbb " + i, Field.Store.NO));
    doc.add(new IntPoint("doc", i));
    doc.add(new IntPoint("doc2d", i, i));
    doc.add(new NumericDocValuesField("dv", i));
    writer.updateDocument(new Term("id", "" + (i%10)), doc);
  }
  // Deletes one of the 10 added docs, leaving 9:
  PhraseQuery q = new PhraseQuery("content", "bbb", "14");
  writer.deleteDocuments(q);

  writer.forceMerge(1);
  writer.commit();

  verifyNumDocs(dir, 1039);
  verifyTermDocs(dir, new Term("content", "aaa"), 1030);
  verifyTermDocs(dir, new Term("content", "bbb"), 9);

  writer.close();
  dir.close();
  aux.close();
}
 

protected Directory createLuceneDirectory(JasperPrint jasperPrint) throws IOException, JRException {
	Long start = System.currentTimeMillis();
	Directory dir = new RAMDirectory();
	Analyzer analyzer = getConfiguredAnalyzer();
	IndexWriterConfig iwc = new IndexWriterConfig(analyzer);

	iwc.setOpenMode(OpenMode.CREATE);
	writer = new IndexWriter(dir, iwc);

	List<JRPrintPage> pages = jasperPrint.getPages();
	if (pages != null && pages.size() > 0) {
		if (log.isDebugEnabled()) {
			log.debug("there are " + pages.size() + " pages to be indexed");
		}
		for (int i = 0, ps = pages.size(); i < ps; i++) {
			if (log.isDebugEnabled()) {
				log.debug("indexing page: " + i);
			}
			indexPage(pages.get(i), i);
		}
	}

	writer.close();

	if (log.isDebugEnabled()) {
		log.debug("index creation took: " + (System.currentTimeMillis() - start) + " ms");
	}

	return dir;
}
 

private void initializeIndex(String[] values, Analyzer analyzer) throws IOException {
  IndexWriter writer = new IndexWriter(dir, newIndexWriterConfig(analyzer).setOpenMode(OpenMode.CREATE));
  for (int i = 0; i < values.length; i++) {
    insertDoc(writer, values[i]);
  }
  writer.close();
}
 

public void testNoTailSegments() throws IOException {
  // main directory
  Directory dir = newDirectory();
  // auxiliary directory
  Directory aux = newDirectory();

  setUpDirs(dir, aux);

  IndexWriter writer = newWriter(
      dir,
      newIndexWriterConfig(new MockAnalyzer(random())).
          setOpenMode(OpenMode.APPEND).
          setMaxBufferedDocs(10).
          setMergePolicy(newLogMergePolicy(4))
  );
  addDocs(writer, 10);

  writer.addIndexes(aux);
  assertEquals(1040, writer.getDocStats().maxDoc);
  assertEquals(1000, writer.maxDoc(0));
  writer.close();

  // make sure the index is correct
  verifyNumDocs(dir, 1040);
  dir.close();
  aux.close();
}
 

public void testFilesOpenClose() throws IOException {
  // Create initial data set
  Path dirFile = createTempDir("TestIndexReader.testFilesOpenClose");
  Directory dir = newFSDirectory(dirFile);
  
  IndexWriter writer  = new IndexWriter(dir, newIndexWriterConfig(new MockAnalyzer(random())));
  addDoc(writer, "test");
  writer.close();
  dir.close();

  // Try to erase the data - this ensures that the writer closed all files
  IOUtils.rm(dirFile);
  dir = newFSDirectory(dirFile);

  // Now create the data set again, just as before
  writer  = new IndexWriter(dir, newIndexWriterConfig(new MockAnalyzer(random()))
                            .setOpenMode(OpenMode.CREATE));
  addDoc(writer, "test");
  writer.close();
  dir.close();

  // Now open existing directory and test that reader closes all files
  dir = newFSDirectory(dirFile);
  DirectoryReader reader1 = DirectoryReader.open(dir);
  reader1.close();
  dir.close();

  // The following will fail if reader did not close
  // all files
  IOUtils.rm(dirFile);
}
 

public void testIndexWriterLockRelease() throws IOException {
  Directory dir = newFSDirectory(createTempDir("testLockRelease"));
  try {
    new IndexWriter(dir, new IndexWriterConfig(new MockAnalyzer(random())).setOpenMode(OpenMode.APPEND));
  } catch (FileNotFoundException | NoSuchFileException e) {
    try {
      new IndexWriter(dir, new IndexWriterConfig(new MockAnalyzer(random())).setOpenMode(OpenMode.APPEND));
    } catch (FileNotFoundException | NoSuchFileException e1) {
    }
  } finally {
    dir.close();
  }
}
 

@Test
public void testSnapshotReleaseByGeneration() throws Exception {
  Directory dir = newDirectory();
  IndexWriter writer = new IndexWriter(dir, getConfig(random(), getDeletionPolicy(dir)));
  PersistentSnapshotDeletionPolicy psdp = (PersistentSnapshotDeletionPolicy) writer.getConfig().getIndexDeletionPolicy();
  prepareIndexAndSnapshots(psdp, writer, 1);
  writer.close();

  psdp.release(snapshots.get(0).getGeneration());

  psdp = new PersistentSnapshotDeletionPolicy(
      new KeepOnlyLastCommitDeletionPolicy(), dir, OpenMode.APPEND);
  assertEquals("Should have no snapshots !", 0, psdp.getSnapshotCount());
  dir.close();
}
 

@Test
public void testStressPerFieldCodec() throws IOException {
  Directory dir = newDirectory(random());
  final int docsPerRound = 97;
  int numRounds = atLeast(1);
  for (int i = 0; i < numRounds; i++) {
    int num = TestUtil.nextInt(random(), 30, 60);
    IndexWriterConfig config = newIndexWriterConfig(random(),
        new MockAnalyzer(random()));
    config.setOpenMode(OpenMode.CREATE_OR_APPEND);
    IndexWriter writer = newWriter(dir, config);
    for (int j = 0; j < docsPerRound; j++) {
      final Document doc = new Document();
      for (int k = 0; k < num; k++) {
        FieldType customType = new FieldType(TextField.TYPE_NOT_STORED);
        customType.setTokenized(random().nextBoolean());
        customType.setOmitNorms(random().nextBoolean());
        Field field = newField("" + k, TestUtil
            .randomRealisticUnicodeString(random(), 128), customType);
        doc.add(field);
      }
      writer.addDocument(doc);
    }
    if (random().nextBoolean()) {
      writer.forceMerge(1);
    }
    writer.commit();
    assertEquals((i + 1) * docsPerRound, writer.getDocStats().maxDoc);
    writer.close();
  }
  dir.close();
}
 

public static Indexer create(String indexDirPath) {
    Directory indexDirectory = null;
    try {
        indexDirectory = FSDirectory.open(new File(indexDirPath).toPath());
        IndexWriterConfig config = new IndexWriterConfig();
        config.setOpenMode(OpenMode.CREATE);
        IndexWriter indexWriter = new IndexWriter(indexDirectory, config);
        return new Indexer(indexDirectory, indexWriter);
    } catch (IOException e) {
        LOGGER.error("Exception while trying to create index writer for entity checking. Returning null.", e);
        IOUtils.closeQuietly(indexDirectory);
        return null;
    }
}
 

private void addDoc(Random random, Directory ramDir1, String s, boolean create) throws IOException {
  IndexWriter iw = new IndexWriter(ramDir1, newIndexWriterConfig(new MockAnalyzer(random))
                                              .setOpenMode(create ? OpenMode.CREATE : OpenMode.APPEND));
  Document doc = new Document();
  doc.add(newTextField("body", s, Field.Store.NO));
  iw.addDocument(doc);
  iw.close();
}
 

@Test
public void testReaderFreshness() throws Exception {
  // ensures that the internal index reader is always kept fresh. Previously,
  // this simple scenario failed, if the cache just evicted the category that
  // is being added.
  Directory dir = newDirectory();
  DirectoryTaxonomyWriter taxoWriter = new DirectoryTaxonomyWriter(dir, OpenMode.CREATE, NO_OP_CACHE);
  int o1 = taxoWriter.addCategory(new FacetLabel("a"));
  int o2 = taxoWriter.addCategory(new FacetLabel("a"));
  assertTrue("ordinal for same category that is added twice should be the same !", o1 == o2);
  taxoWriter.close();
  dir.close();
}
 

void addDocs(final Random random, Directory dir, final int ndocs, String field, final String val, final int maxTF, final float percentDocs) throws IOException {

    Analyzer analyzer = new Analyzer() {
      @Override
      public TokenStreamComponents createComponents(String fieldName) {
        return new TokenStreamComponents(new RepeatingTokenizer(val, random, percentDocs, maxTF));
      }
    };

    Document doc = new Document();
    
    doc.add(newStringField(field, val, Field.Store.NO));
    IndexWriter writer = new IndexWriter(
        dir,
        newIndexWriterConfig(analyzer)
          .setOpenMode(OpenMode.CREATE)
          .setMaxBufferedDocs(100)
          .setMergePolicy(newLogMergePolicy(100))
    );

    for (int i=0; i<ndocs; i++) {
      writer.addDocument(doc);
    }

    writer.forceMerge(1);
    writer.close();
  }
 

private static IndexWriter getWriter (Directory directory)
  throws IOException
{
  MergePolicy policy = new LogByteSizeMergePolicy();
  IndexWriterConfig conf = new IndexWriterConfig(new MockAnalyzer(random()));
  conf.setMergePolicy(policy);
  conf.setOpenMode(OpenMode.CREATE_OR_APPEND);

  IndexWriter writer = new IndexWriter(directory, conf);

  return writer;
}
 

/**
 * A constructor.
 *
 * @param dir The directory where the snapshot meta-data is stored.
 * @param mode CREATE If previous meta-data should be erased.
 *             APPEND If previous meta-data should be read and updated.
 *             CREATE_OR_APPEND Creates a new meta-data structure if one does not exist
 *                              Updates the existing structure if one exists.
 * @throws IOException in case of errors.
 */
public SolrSnapshotMetaDataManager(SolrCore solrCore, Directory dir, OpenMode mode) throws IOException {
  this.solrCore = solrCore;
  this.dir = dir;

  if (mode == OpenMode.CREATE) {
    deleteSnapshotMetadataFiles();
  }

  loadFromSnapshotMetadataFile();

  if (mode == OpenMode.APPEND && nextWriteGen == 0) {
    throw new IllegalStateException("no snapshots stored in this directory");
  }
}
 

@Test
public void testDefault() throws Exception {
  Directory indexDir = newDirectory();
  Directory taxoDir = newDirectory();
  
  // create and open an index writer
  RandomIndexWriter iw = new RandomIndexWriter(random(), indexDir, newIndexWriterConfig(
      new MockAnalyzer(random(), MockTokenizer.WHITESPACE, false)));
  // create and open a taxonomy writer
  TaxonomyWriter tw = new DirectoryTaxonomyWriter(taxoDir, OpenMode.CREATE);
  FacetsConfig config = getConfig();

  seedIndex(tw, iw, config);

  IndexReader ir = iw.getReader();
  tw.commit();

  // prepare index reader and taxonomy.
  TaxonomyReader tr = new DirectoryTaxonomyReader(taxoDir);

  // prepare searcher to search against
  IndexSearcher searcher = newSearcher(ir);

  FacetsCollector sfc = performSearch(tr, ir, searcher);

  // Obtain facets results and hand-test them
  assertCorrectResults(getTaxonomyFacetCounts(tr, config, sfc));

  assertOrdinalsExist("$facets", ir);

  iw.close();
  IOUtils.close(tr, ir, tw, indexDir, taxoDir);
}