Examples of org.apache.lucene.index.IndexReader.numDocs()

Class org.apache.lucene.index.IndexReader

Examples of org.apache.lucene.index.IndexReader.numDocs()

org.apache.lucene.index.IndexReader.numDocs()
Returns the number of documents in this index.

    // now we should be able to open the index for write. 
    IndexWriter iw = new IndexWriter(benchmark.getRunData().getDirectory(),null,false,IndexWriter.MaxFieldLength.UNLIMITED);
    iw.close();


    IndexReader ir = IndexReader.open(benchmark.getRunData().getDirectory(), true);
    assertEquals(numLines + " lines were created but " + ir.numDocs() + " docs are in the index", numLines, ir.numDocs());
    ir.close();


    lineFile.delete();
  }

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    // now we should be able to open the index for write. 
    IndexWriter iw = new IndexWriter(benchmark.getRunData().getDirectory(),null,false,IndexWriter.MaxFieldLength.UNLIMITED);
    iw.close();


    IndexReader ir = IndexReader.open(benchmark.getRunData().getDirectory(), true);
    assertEquals(numLines + " lines were created but " + ir.numDocs() + " docs are in the index", numLines, ir.numDocs());
    ir.close();


    lineFile.delete();
  }

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      }
    }


    // Separately count how many tokens are actually in the index:
    IndexReader reader = IndexReader.open(benchmark.getRunData().getDirectory(), true);
    assertEquals(NUM_DOCS, reader.numDocs());


    TermEnum terms = reader.terms();
    TermDocs termDocs = reader.termDocs();
    int totalTokenCount2 = 0;
    while(terms.next()) {

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    Benchmark benchmark = execBenchmark(algLines);


    // 3. test number of docs in the index
    IndexReader ir = IndexReader.open(benchmark.getRunData().getDirectory(), true);
    int ndocsExpected = 2 * 20; // Reuters20ContentSource exhausts after 20 docs.
    assertEquals("wrong number of docs in the index!", ndocsExpected, ir.numDocs());
    ir.close();
  }


  // create the benchmark and execute it. 
  public static Benchmark execBenchmark(String[] algLines) throws Exception {

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    Benchmark benchmark = execBenchmark(algLines);


    // 3. test number of docs in the index
    IndexReader ir = IndexReader.open(benchmark.getRunData().getDirectory(), true);
    int ndocsExpected = 20; // Reuters20ContentSource exhausts after 20 docs.
    assertEquals("wrong number of docs in the index!", ndocsExpected, ir.numDocs());
    ir.close();
  }
  
  /**
   * Test that we can close IndexWriter with argument "false".

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    Benchmark benchmark = execBenchmark(algLines);


    // 3. test number of docs in the index
    IndexReader ir = IndexReader.open(benchmark.getRunData().getDirectory(), true);
    int ndocsExpected = 20; // Reuters20ContentSource exhausts after 20 docs.
    assertEquals("wrong number of docs in the index!", ndocsExpected, ir.numDocs());
    ir.close();
  }


  public static class MyMergeScheduler extends SerialMergeScheduler {
    boolean called;

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    benchmark.getRunData().getIndexWriter().close();


    // 3. test number of docs in the index
    IndexReader ir = IndexReader.open(benchmark.getRunData().getDirectory(), true);
    int ndocsExpected = 20; // Reuters20ContentSource exhausts after 20 docs.
    assertEquals("wrong number of docs in the index!", ndocsExpected, ir.numDocs());
    ir.close();
  }


  public static class MyMergePolicy extends LogDocMergePolicy {
    boolean called;

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    benchmark.getRunData().getIndexWriter().close();
    
    // 3. test number of docs in the index
    IndexReader ir = IndexReader.open(benchmark.getRunData().getDirectory(), true);
    int ndocsExpected = 20; // Reuters20ContentSource exhausts after 20 docs.
    assertEquals("wrong number of docs in the index!", ndocsExpected, ir.numDocs());
    ir.close();
  }


  /**
   * Test that IndexWriter settings stick.

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    Benchmark benchmark = execBenchmark(algLines);


    // 3. test number of docs in the index
    IndexReader ir = IndexReader.open(benchmark.getRunData().getDirectory(), true);
    int ndocsExpected = 20; // Reuters20ContentSource exhausts after 20 docs.
    assertEquals("wrong number of docs in the index!", ndocsExpected, ir.numDocs());
    ir.close();


    // Make sure we have 3 segments:
    final String[] files = benchmark.getRunData().getDirectory().listAll();
    int cfsCount = 0;

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    String stringFldStoredTest = docFromReader.get("stringStored");
    assertTrue(stringFldStoredTest.equals(binaryValStored));
    
    /** delete the document from index */
    reader.deleteDocument(0);
    assertEquals(0, reader.numDocs());
    
    reader.close();
    dir.close();
  }

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