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

org.apache.lucene.index.IndexWriter
Holds shared SegmentReader instances. IndexWriter uses SegmentReaders for 1) applying deletes, 2) doing merges, 3) handing out a real-time reader. This pool reuses instances of the SegmentReaders in all these places if it is in "near real-time mode" (getReader() has been called on this instance).

    }
  }


  public void testSimilarity() throws Exception {
    RAMDirectory store = new RAMDirectory();
    IndexWriter writer = new IndexWriter(store, new SimpleAnalyzer(), true, 
                                         IndexWriter.MaxFieldLength.LIMITED);
    writer.setSimilarity(new SimpleSimilarity());
    
    Document d1 = new Document();
    d1.add(new Field("field", "a c", Field.Store.YES, Field.Index.ANALYZED));


    Document d2 = new Document();
    d2.add(new Field("field", "a b c", Field.Store.YES, Field.Index.ANALYZED));
    
    writer.addDocument(d1);
    writer.addDocument(d2);
    writer.optimize();
    writer.close();


    Searcher searcher = new IndexSearcher(store, true);
    searcher.setSimilarity(new SimpleSimilarity());


    Term a = new Term("field", "a");

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    super(name);
  }


  public void testNot() throws Exception {
    RAMDirectory store = new RAMDirectory();
    IndexWriter writer = new IndexWriter(store, new SimpleAnalyzer(), true, IndexWriter.MaxFieldLength.LIMITED);


    Document d1 = new Document();
    d1.add(new Field("field", "a b", Field.Store.YES, Field.Index.ANALYZED));


    writer.addDocument(d1);
    writer.optimize();
    writer.close();


    Searcher searcher = new IndexSearcher(store, true);
      QueryParser parser = new QueryParser(Version.LUCENE_CURRENT, "field", new SimpleAnalyzer());
    Query query = parser.parse("a NOT b");
    //System.out.println(query);

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   * @throws IOException
   */
  public IndexSearcher setUp(Similarity similarity, int numDocs) throws IOException {
    RAMDirectory directory = new RAMDirectory();
    PayloadAnalyzer analyzer = new PayloadAnalyzer();
    IndexWriter writer
            = new IndexWriter(directory, analyzer, true, IndexWriter.MaxFieldLength.UNLIMITED);
    writer.setSimilarity(similarity);
    //writer.infoStream = System.out;
    for (int i = 0; i < numDocs; i++) {
      Document doc = new Document();
      doc.add(new Field(FIELD, English.intToEnglish(i), Field.Store.YES, Field.Index.ANALYZED));
      doc.add(new Field(MULTI_FIELD, English.intToEnglish(i) + "  " + English.intToEnglish(i), Field.Store.YES, Field.Index.ANALYZED));
      doc.add(new Field(NO_PAYLOAD_FIELD, English.intToEnglish(i), Field.Store.YES, Field.Index.ANALYZED));
      writer.addDocument(doc);
    }
    //writer.optimize();
    writer.close();


    IndexSearcher searcher = new IndexSearcher(directory, true);
    searcher.setSimilarity(similarity);
    return searcher;
  }

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  }


  public void testFarsiRangeCollating() throws Exception {


    RAMDirectory ramDir = new RAMDirectory();
    IndexWriter iw = new IndexWriter(ramDir, new WhitespaceAnalyzer(), true,
        IndexWriter.MaxFieldLength.LIMITED);
    Document doc = new Document();
    doc.add(new Field("content", "\u0633\u0627\u0628", Field.Store.YES,
        Field.Index.NOT_ANALYZED));
    iw.addDocument(doc);
    iw.close();
    IndexSearcher is = new IndexSearcher(ramDir, true);


    StandardQueryParser qp = new StandardQueryParser();
    qp.setAnalyzer(new WhitespaceAnalyzer());

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  }


  private RAMDirectory getIndexStore(String field, String[] contents)
      throws IOException {
    RAMDirectory indexStore = new RAMDirectory();
    IndexWriter writer = new IndexWriter(indexStore, new SimpleAnalyzer(), true, IndexWriter.MaxFieldLength.LIMITED);
    for (int i = 0; i < contents.length; ++i) {
      Document doc = new Document();
      doc.add(new Field(field, contents[i], Field.Store.YES, Field.Index.ANALYZED));
      writer.addDocument(doc);
    }
    writer.optimize();
    writer.close();


    return indexStore;
  }

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  }


  public void testLocalDateFormat() throws IOException, QueryNodeException {


    RAMDirectory ramDir = new RAMDirectory();
    IndexWriter iw = new IndexWriter(ramDir, new WhitespaceAnalyzer(), true,
        IndexWriter.MaxFieldLength.LIMITED);
    addDateDoc("a", 2005, 12, 2, 10, 15, 33, iw);
    addDateDoc("b", 2005, 12, 4, 22, 15, 00, iw);
    iw.close();
    IndexSearcher is = new IndexSearcher(ramDir, true);
    assertHits(1, "[12/1/2005 TO 12/3/2005]", is);
    assertHits(2, "[12/1/2005 TO 12/4/2005]", is);
    assertHits(1, "[12/3/2005 TO 12/4/2005]", is);
    assertHits(1, "{12/1/2005 TO 12/3/2005}", is);

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    }
  }


  public void testMultiPhraseQuery() throws Exception {
    MockRAMDirectory dir = new MockRAMDirectory();
    IndexWriter w = new IndexWriter(dir, new CannedAnalyzer(), IndexWriter.MaxFieldLength.UNLIMITED);
    Document doc = new Document();
    doc.add(new Field("field", "", Field.Store.NO, Field.Index.ANALYZED));
    w.addDocument(doc);
    IndexReader r = w.getReader();
    IndexSearcher s = new IndexSearcher(r);
    
    Query q = new StandardQueryParser(new CannedAnalyzer()).parse("\"a\"", "field");
    assertTrue(q instanceof MultiPhraseQuery);
    assertEquals(1, s.search(q, 10).totalHits);
    r.close();
    w.close();
  }

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        {"*o*", "*op*", "*opq**", "op*q*", "*u?", "*t?1", "opq**"}, // these should find only doc 2
    };


    // prepare the index
    RAMDirectory dir = new RAMDirectory();
    IndexWriter iw = new IndexWriter(dir, new WhitespaceAnalyzer(), IndexWriter.MaxFieldLength.LIMITED);
    for (int i = 0; i < docs.length; i++) {
      Document doc = new Document();
      doc.add(new Field(field,docs[i],Store.NO,Index.ANALYZED));
      iw.addDocument(doc);
    }
    iw.close();
    
    IndexSearcher searcher = new IndexSearcher(dir, true);
    
    // test queries that must find all
    for (int i = 0; i < matchAll.length; i++) {

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  @Override
  protected void setUp() throws Exception {
    super.setUp();
    dir = new RAMDirectory();
    appAnalyzer = new WhitespaceAnalyzer();
    IndexWriter writer = new IndexWriter(dir, appAnalyzer, true, IndexWriter.MaxFieldLength.UNLIMITED);
    int numDocs = 200;
    for (int i = 0; i < numDocs; i++) {
      Document doc = new Document();
      String variedFieldValue = variedFieldValues[i % variedFieldValues.length];
      String repetitiveFieldValue = repetitiveFieldValues[i % repetitiveFieldValues.length];
      doc.add(new Field("variedField", variedFieldValue, Field.Store.YES, Field.Index.ANALYZED));
      doc.add(new Field("repetitiveField", repetitiveFieldValue, Field.Store.YES, Field.Index.ANALYZED));
      writer.addDocument(doc);
    }
    writer.close();
    reader = IndexReader.open(dir, true);
    protectedAnalyzer = new QueryAutoStopWordAnalyzer(Version.LUCENE_CURRENT, appAnalyzer);
  }

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  @Override
  protected void setUp() throws Exception {
    super.setUp();
    directory = new RAMDirectory();
    PayloadAnalyzer analyzer = new PayloadAnalyzer();
    IndexWriter writer
            = new IndexWriter(directory, analyzer, true, IndexWriter.MaxFieldLength.LIMITED);
    writer.setSimilarity(similarity);
    //writer.infoStream = System.out;
    for (int i = 0; i < 1000; i++) {
      Document doc = new Document();
      Field noPayloadField = new Field(PayloadHelper.NO_PAYLOAD_FIELD, English.intToEnglish(i), Field.Store.YES, Field.Index.ANALYZED);
      //noPayloadField.setBoost(0);
      doc.add(noPayloadField);
      doc.add(new Field("field", English.intToEnglish(i), Field.Store.YES, Field.Index.ANALYZED));
      doc.add(new Field("multiField", English.intToEnglish(i) + "  " + English.intToEnglish(i), Field.Store.YES, Field.Index.ANALYZED));
      writer.addDocument(doc);
    }
    writer.optimize();
    writer.close();


    searcher = new IndexSearcher(directory, true);
    searcher.setSimilarity(similarity);
  }

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