IndexWriter getIndexWriter(Directory luceneDir)
      throws CorruptIndexException, LockObtainFailedException, IOException, ProviderException {
    IndexWriter writer = null;
    IndexWriterConfig writerConfig = new IndexWriterConfig(Version.LUCENE_36, getLuceneAnalyzer());
    writerConfig.setOpenMode(OpenMode.CREATE_OR_APPEND);
    writer = new IndexWriter(luceneDir, writerConfig);

    // writer.setInfoStream( System.out );
    return writer;
  }
  protected DirectoryReader indexDocsWithLucene(TestDoc[] testDocs) throws IOException {

    Map<String, Analyzer> mapping = new HashMap<String, Analyzer>();
    for (TestFieldSetting field : testDocs[0].fieldSettings) {
      if (field.storedPayloads) {
        mapping.put(
            field.name,
            new Analyzer() {
              @Override
              protected TokenStreamComponents createComponents(String fieldName, Reader reader) {
                Tokenizer tokenizer = new StandardTokenizer(Version.CURRENT.luceneVersion, reader);
                TokenFilter filter = new LowerCaseFilter(Version.CURRENT.luceneVersion, tokenizer);
                filter = new TypeAsPayloadTokenFilter(filter);
                return new TokenStreamComponents(tokenizer, filter);
              }
            });
      }
    }
    PerFieldAnalyzerWrapper wrapper =
        new PerFieldAnalyzerWrapper(
            new StandardAnalyzer(Version.CURRENT.luceneVersion, CharArraySet.EMPTY_SET), mapping);

    Directory dir = new RAMDirectory();
    IndexWriterConfig conf = new IndexWriterConfig(Version.CURRENT.luceneVersion, wrapper);

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

    for (TestDoc doc : testDocs) {
      Document d = new Document();
      d.add(new Field("id", doc.id, StringField.TYPE_STORED));
      for (int i = 0; i < doc.fieldContent.length; i++) {
        FieldType type = new FieldType(TextField.TYPE_STORED);
        TestFieldSetting fieldSetting = doc.fieldSettings[i];

        type.setStoreTermVectorOffsets(fieldSetting.storedOffset);
        type.setStoreTermVectorPayloads(fieldSetting.storedPayloads);
        type.setStoreTermVectorPositions(
            fieldSetting.storedPositions
                || fieldSetting.storedPayloads
                || fieldSetting.storedOffset);
        type.setStoreTermVectors(true);
        type.freeze();
        d.add(new Field(fieldSetting.name, doc.fieldContent[i], type));
      }
      writer.updateDocument(new Term("id", doc.id), d);
      writer.commit();
    }
    writer.close();

    return DirectoryReader.open(dir);
  }
  /**
   * Index a picture
   *
   * @param source
   * @param picture_id
   * @param conf
   * @throws IOException
   */
  public static void index(byte[] source, UUID picture_id, IndexWriterConfig conf)
      throws IOException {
    ByteArrayInputStream in = new ByteArrayInputStream(source);
    BufferedImage image = ImageIO.read(in);

    // Creating an Lucene IndexWriter
    log.debug("Is Lucene configured? " + (conf == null));
    if (conf == null) {
      conf =
          new IndexWriterConfig(
              LuceneUtils.LUCENE_VERSION, new WhitespaceAnalyzer(LuceneUtils.LUCENE_VERSION));
      conf.setOpenMode(IndexWriterConfig.OpenMode.CREATE_OR_APPEND);
    }

    luceneIndexer(
        image,
        picture_id,
        FeatureEnumerate.AutoColorCorrelogram.getText(),
        DocumentBuilderFactory.getAutoColorCorrelogramDocumentBuilder(),
        conf);
    luceneIndexer(
        image,
        picture_id,
        FeatureEnumerate.CEDD.getText(),
        DocumentBuilderFactory.getCEDDDocumentBuilder(),
        conf);
    luceneIndexer(
        image,
        picture_id,
        FeatureEnumerate.ColorLayout.getText(),
        DocumentBuilderFactory.getColorLayoutBuilder(),
        conf);
    luceneIndexer(
        image,
        picture_id,
        FeatureEnumerate.EdgeHistogram.getText(),
        DocumentBuilderFactory.getEdgeHistogramBuilder(),
        conf);
    luceneIndexer(
        image,
        picture_id,
        FeatureEnumerate.ColorHistogram.getText(),
        DocumentBuilderFactory.getColorHistogramDocumentBuilder(),
        conf);
    luceneIndexer(
        image,
        picture_id,
        FeatureEnumerate.PHOG.getText(),
        DocumentBuilderFactory.getPHOGDocumentBuilder(),
        conf);
  }
  private static void deleteFromFeature(
      UUID pictureId, Term term, String prefix, IndexWriterConfig conf) throws IOException {

    File file = getPath(prefix);

    // Creating an Lucene IndexWriter
    log.debug("Is Lucene configured: " + (conf == null));
    if (conf == null) {
      conf =
          new IndexWriterConfig(
              LuceneUtils.LUCENE_VERSION, new WhitespaceAnalyzer(LuceneUtils.LUCENE_VERSION));
      conf.setOpenMode(IndexWriterConfig.OpenMode.CREATE_OR_APPEND);
    }
    IndexWriter iw = new IndexWriter(FSDirectory.open(file), conf);

    iw.deleteDocuments(term);

    iw.close();
  }
Esempio n. 5
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  @Test
  public void testRecoveryDiff() throws IOException, InterruptedException {
    int numDocs = 2 + random().nextInt(100);
    List<Document> docs = new ArrayList<>();
    for (int i = 0; i < numDocs; i++) {
      Document doc = new Document();
      doc.add(
          new StringField("id", "" + i, random().nextBoolean() ? Field.Store.YES : Field.Store.NO));
      doc.add(
          new TextField(
              "body",
              TestUtil.randomRealisticUnicodeString(random()),
              random().nextBoolean() ? Field.Store.YES : Field.Store.NO));
      doc.add(
          new SortedDocValuesField(
              "dv", new BytesRef(TestUtil.randomRealisticUnicodeString(random()))));
      docs.add(doc);
    }
    long seed = random().nextLong();
    Store.MetadataSnapshot first;
    {
      Random random = new Random(seed);
      IndexWriterConfig iwc =
          new IndexWriterConfig(new MockAnalyzer(random)).setCodec(actualDefaultCodec());
      iwc.setMergePolicy(NoMergePolicy.INSTANCE);
      iwc.setUseCompoundFile(random.nextBoolean());
      iwc.setMaxThreadStates(1);
      final ShardId shardId = new ShardId(new Index("index"), 1);
      DirectoryService directoryService = new LuceneManagedDirectoryService(random);
      Store store =
          new Store(
              shardId,
              ImmutableSettings.EMPTY,
              directoryService,
              randomDistributor(random, directoryService),
              new DummyShardLock(shardId));
      IndexWriter writer = new IndexWriter(store.directory(), iwc);
      final boolean lotsOfSegments = rarely(random);
      for (Document d : docs) {
        writer.addDocument(d);
        if (lotsOfSegments && random.nextBoolean()) {
          writer.commit();
        } else if (rarely(random)) {
          writer.commit();
        }
      }
      writer.commit();
      writer.close();
      first = store.getMetadata();
      assertDeleteContent(store, directoryService);
      store.close();
    }
    long time = new Date().getTime();
    while (time == new Date().getTime()) {
      Thread.sleep(10); // bump the time
    }
    Store.MetadataSnapshot second;
    Store store;
    {
      Random random = new Random(seed);
      IndexWriterConfig iwc =
          new IndexWriterConfig(new MockAnalyzer(random)).setCodec(actualDefaultCodec());
      iwc.setMergePolicy(NoMergePolicy.INSTANCE);
      iwc.setUseCompoundFile(random.nextBoolean());
      iwc.setMaxThreadStates(1);
      final ShardId shardId = new ShardId(new Index("index"), 1);
      DirectoryService directoryService = new LuceneManagedDirectoryService(random);
      store =
          new Store(
              shardId,
              ImmutableSettings.EMPTY,
              directoryService,
              randomDistributor(random, directoryService),
              new DummyShardLock(shardId));
      IndexWriter writer = new IndexWriter(store.directory(), iwc);
      final boolean lotsOfSegments = rarely(random);
      for (Document d : docs) {
        writer.addDocument(d);
        if (lotsOfSegments && random.nextBoolean()) {
          writer.commit();
        } else if (rarely(random)) {
          writer.commit();
        }
      }
      writer.commit();
      writer.close();
      second = store.getMetadata();
    }
    Store.RecoveryDiff diff = first.recoveryDiff(second);
    assertThat(first.size(), equalTo(second.size()));
    for (StoreFileMetaData md : first) {
      assertThat(second.get(md.name()), notNullValue());
      // si files are different - containing timestamps etc
      assertThat(second.get(md.name()).isSame(md), equalTo(false));
    }
    assertThat(diff.different.size(), equalTo(first.size()));
    assertThat(
        diff.identical.size(),
        equalTo(0)); // in lucene 5 nothing is identical - we use random ids in file headers
    assertThat(diff.missing, empty());

    // check the self diff
    Store.RecoveryDiff selfDiff = first.recoveryDiff(first);
    assertThat(selfDiff.identical.size(), equalTo(first.size()));
    assertThat(selfDiff.different, empty());
    assertThat(selfDiff.missing, empty());

    // lets add some deletes
    Random random = new Random(seed);
    IndexWriterConfig iwc =
        new IndexWriterConfig(new MockAnalyzer(random)).setCodec(actualDefaultCodec());
    iwc.setMergePolicy(NoMergePolicy.INSTANCE);
    iwc.setUseCompoundFile(random.nextBoolean());
    iwc.setMaxThreadStates(1);
    iwc.setOpenMode(IndexWriterConfig.OpenMode.APPEND);
    IndexWriter writer = new IndexWriter(store.directory(), iwc);
    writer.deleteDocuments(new Term("id", Integer.toString(random().nextInt(numDocs))));
    writer.commit();
    writer.close();
    Store.MetadataSnapshot metadata = store.getMetadata();
    StoreFileMetaData delFile = null;
    for (StoreFileMetaData md : metadata) {
      if (md.name().endsWith(".liv")) {
        delFile = md;
        break;
      }
    }
    Store.RecoveryDiff afterDeleteDiff = metadata.recoveryDiff(second);
    if (delFile != null) {
      assertThat(
          afterDeleteDiff.identical.size(), equalTo(metadata.size() - 2)); // segments_N + del file
      assertThat(afterDeleteDiff.different.size(), equalTo(0));
      assertThat(afterDeleteDiff.missing.size(), equalTo(2));
    } else {
      // an entire segment must be missing (single doc segment got dropped)
      assertThat(afterDeleteDiff.identical.size(), greaterThan(0));
      assertThat(afterDeleteDiff.different.size(), equalTo(0));
      assertThat(afterDeleteDiff.missing.size(), equalTo(1)); // the commit file is different
    }

    // check the self diff
    selfDiff = metadata.recoveryDiff(metadata);
    assertThat(selfDiff.identical.size(), equalTo(metadata.size()));
    assertThat(selfDiff.different, empty());
    assertThat(selfDiff.missing, empty());

    // add a new commit
    iwc = new IndexWriterConfig(new MockAnalyzer(random)).setCodec(actualDefaultCodec());
    iwc.setMergePolicy(NoMergePolicy.INSTANCE);
    iwc.setUseCompoundFile(
        true); // force CFS - easier to test here since we know it will add 3 files
    iwc.setMaxThreadStates(1);
    iwc.setOpenMode(IndexWriterConfig.OpenMode.APPEND);
    writer = new IndexWriter(store.directory(), iwc);
    writer.addDocument(docs.get(0));
    writer.close();

    Store.MetadataSnapshot newCommitMetaData = store.getMetadata();
    Store.RecoveryDiff newCommitDiff = newCommitMetaData.recoveryDiff(metadata);
    if (delFile != null) {
      assertThat(
          newCommitDiff.identical.size(),
          equalTo(
              newCommitMetaData.size()
                  - 5)); // segments_N, del file, cfs, cfe, si for the new segment
      assertThat(newCommitDiff.different.size(), equalTo(1)); // the del file must be different
      assertThat(newCommitDiff.different.get(0).name(), endsWith(".liv"));
      assertThat(
          newCommitDiff.missing.size(), equalTo(4)); // segments_N,cfs, cfe, si for the new segment
    } else {
      assertThat(
          newCommitDiff.identical.size(),
          equalTo(newCommitMetaData.size() - 4)); // segments_N, cfs, cfe, si for the new segment
      assertThat(newCommitDiff.different.size(), equalTo(0));
      assertThat(
          newCommitDiff.missing.size(),
          equalTo(
              4)); // an entire segment must be missing (single doc segment got dropped)  plus the
                   // commit is different
    }

    store.deleteContent();
    IOUtils.close(store);
  }