Package org.apache.lucene.index

Examples of org.apache.lucene.index.IndexWriter$Event

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        // 3. Close reader
        indexReader.close();
        directory.close();
       
        // 4. open writer
        IndexWriter indexWriter = new IndexWriter(directory, new StandardAnalyzer(Version.LUCENE_CURRENT), false, IndexWriter.MaxFieldLength.UNLIMITED);
        indexWriter.setMergeFactor(INDEX_MERGE_FACTOR); //for better performance
        // 5. Add new Document
        for (int i = 0; i < updateCopy.size(); i++) {
          Document document = updateCopy.get(i);
          log.info("addDocument:" + document);
          indexWriter.addDocument(document);         
        }
        // 6. Close writer
        long startOptimizeTime = 0;
        if (log.isDebug()) startOptimizeTime = System.currentTimeMillis();
        indexWriter.optimize();// TODO:chg: dauert ev. zulange oder nocht noetig
        if (log.isDebug()) log.debug("Optimized in " + (System.currentTimeMillis() - startOptimizeTime) + "ms");
        indexWriter.close();
      } catch (Exception ex) {
        log.warn("Exception during doUpdate. ", ex);
      }
    } else {
      log.debug("Queues are ampty.");
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        Dictionary authorDictionary = new LuceneDictionary(indexReader, OlatDocument.AUTHOR_FIELD_NAME);
        authorSpellChecker.indexDictionary(authorDictionary);
       
        // Merge all part spell indexes (content,title etc.) to one common spell index
        Directory spellIndexDirectory = FSDirectory.open(spellDictionaryFile);//true
        IndexWriter merger = new IndexWriter(spellIndexDirectory, new StandardAnalyzer(Version.LUCENE_CURRENT), true, IndexWriter.MaxFieldLength.UNLIMITED);
        Directory[] directories = { contentSpellIndexDirectory, titleSpellIndexDirectory, descriptionSpellIndexDirectory, authorSpellIndexDirectory};
        merger.addIndexesNoOptimize(directories);
        merger.optimize();
        merger.close();
        spellChecker = new SpellChecker(spellIndexDirectory);
        spellChecker.setAccuracy(0.7f);
         if (log.isDebug()) log.debug("SpellIndex created in " + (System.currentTimeMillis() - startSpellIndexTime) + "ms");
        log.info("New generated Spell-Index ready to use.");
      } catch(IOException ioEx) {
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  private void doIndex() throws InterruptedException{
    try {
      File tempIndexDir = new File(tempIndexPath);
      Directory indexPath = FSDirectory.open(new File(tempIndexDir, "main"));
      Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_CURRENT);
      indexWriter = new IndexWriter(indexPath, analyzer, true, IndexWriter.MaxFieldLength.UNLIMITED);
      indexWriter.deleteAll();
      indexWriter.setMergeFactor(INDEX_MERGE_FACTOR); //for better performance
      // Create IndexWriterWorker
      log.info("Running with " + numberIndexWriter + " IndexerWriterWorker");
      indexWriterWorkers = new IndexWriterWorker[numberIndexWriter];
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    this.id = id;
    this.fullIndexer = fullIndexer;
    try {
      File indexPartFile = new File(tempIndexDir, "part" + id);
      Directory indexPartDirectory = FSDirectory.open(indexPartFile);
      indexWriter = new IndexWriter(indexPartDirectory, new StandardAnalyzer(Version.LUCENE_CURRENT), true, IndexWriter.MaxFieldLength.UNLIMITED);
      indexWriter.deleteAll();
    } catch (IOException e) {
      log.warn("Can not create IndexWriter");
    }
  }
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   */
  public static void main(String[] args) {

    Directory ramDir = new RAMDirectory();
    try {
      IndexWriter writer = new IndexWriter(ramDir, /*new StandardAnalyzer()/*/XFactory.getWriterAnalyzer());
      Document doc = new Document();
      Field fd = new Field(FIELD_NAME, CONTENT, Field.Store.YES, Field.Index.TOKENIZED,Field.TermVector.WITH_POSITIONS_OFFSETS);
      doc.add(fd);
      writer.addDocument(doc);
      writer.optimize();
      writer.close();
     
      IndexReader reader = IndexReader.open(ramDir);
      String queryString = QUERY;
      QueryParser parser=new QueryParser(FIELD_NAME, /*new StandardAnalyzer()/*/XFactory.getWriterAnalyzer());
      Query query = parser.parse(queryString);
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    //读取本类目录下的text.txt文件
    String content = ContentReader.readText(Chinese.class);

    //接下来是标准的Lucene建立索引和检索的代码
    Directory ramDir = new RAMDirectory();
    IndexWriter writer = new IndexWriter(ramDir, analyzer, MaxFieldLength.UNLIMITED);
    Document doc = new Document();
    Field fd = new Field(FIELD_NAME, content, Field.Store.YES,
        Field.Index.ANALYZED, Field.TermVector.WITH_POSITIONS_OFFSETS);
    doc.add(fd);
    writer.addDocument(doc);
    writer.optimize();
    writer.close();

    IndexReader reader = IndexReader.open(ramDir);
    String queryString = QUERY;
    QueryParser parser = new QueryParser(Version.LUCENE_CURRENT, FIELD_NAME, analyzer);
    Query query = parser.parse(queryString);
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    //读取本类目录下的text.txt文件
    String content = ContentReader.readText(English.class);

    //接下来是标准的Lucene建立索引和检索的代码
    Directory ramDir = new RAMDirectory();
    IndexWriter writer = new IndexWriter(ramDir, analyzer, MaxFieldLength.UNLIMITED);
    Document doc = new Document();
    Field fd = new Field(FIELD_NAME, content, Field.Store.YES,
        Field.Index.ANALYZED, Field.TermVector.WITH_POSITIONS_OFFSETS);
    doc.add(fd);
    writer.addDocument(doc);
    writer.optimize();
    writer.close();

    IndexReader reader = IndexReader.open(ramDir);
    String queryString = QUERY;
    QueryParser parser = new QueryParser(Version.LUCENE_CURRENT, FIELD_NAME, analyzer);
    Query query = parser.parse(queryString);
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    //实例化IKAnalyzer分词器
    Analyzer analyzer = new IKAnalyzer();
  
   
    Directory directory = null;
    IndexWriter iwriter = null;
    IndexSearcher isearcher = null;
    try {
      //建立内存索引对象
      directory = new RAMDirectory();  
      iwriter = new IndexWriter(directory, analyzer, true , IndexWriter.MaxFieldLength.LIMITED);
      Document doc = new Document();
      doc.add(new Field("ID", "10000", Field.Store.YES, Field.Index.NOT_ANALYZED));
      doc.add(new Field(fieldName, text, Field.Store.YES, Field.Index.ANALYZED));
      iwriter.addDocument(doc);
      iwriter.close();
     
        //实例化搜索器  
      isearcher = new IndexSearcher(directory);     
      //在索引器中使用IKSimilarity相似度评估器
      isearcher.setSimilarity(new IKSimilarity());
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    //读取本类目录下的text.txt文件
    String content = ContentReader.readText(Chinese.class);

    //接下来是标准的Lucene建立索引和检索的代码
    Directory ramDir = new RAMDirectory();
    IndexWriter writer = new IndexWriter(ramDir, analyzer, MaxFieldLength.UNLIMITED);
    Document doc = new Document();
    Field fd = new Field(FIELD_NAME, content, Field.Store.YES,
        Field.Index.ANALYZED, Field.TermVector.WITH_POSITIONS_OFFSETS);
    doc.add(fd);
    writer.addDocument(doc);
    writer.optimize();
    writer.close();

    IndexReader reader = IndexReader.open(ramDir);
    String queryString = QUERY;
    QueryParser parser = new QueryParser(Version.LUCENE_CURRENT, FIELD_NAME, analyzer);
    Query query = parser.parse(queryString);
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    //读取本类目录下的text.txt文件
    String content = ContentReader.readText(Chinese.class);

    //接下来是标准的Lucene建立索引和检索的代码
    Directory ramDir = new RAMDirectory();
    IndexWriter writer = new IndexWriter(ramDir, analyzer, MaxFieldLength.UNLIMITED);
    Document doc = new Document();
    Field fd = new Field(FIELD_NAME, content, Field.Store.YES,
        Field.Index.ANALYZED, Field.TermVector.WITH_POSITIONS_OFFSETS);
    doc.add(fd);
    writer.addDocument(doc);
    writer.optimize();
    writer.close();

    IndexReader reader = IndexReader.open(ramDir);
    String queryString = QUERY;
    QueryParser parser = new QueryParser(Version.LUCENE_CURRENT, FIELD_NAME, analyzer);
    Query query = parser.parse(queryString);
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