Package org.apache.lucene.index

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

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  public void info() throws java.io.IOException {
    IndexReader indexReader = IndexReader.open(indexName, true);


    getFieldInfo();
    numDocs = indexReader.numDocs();
    message("Index has " + numDocs + " documents ");
    message("All Fields:" + fields.toString());
    message("Indexed Fields:" + indexedFields.toString());

    if (IndexWriter.isLocked(indexName)) {
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          if (q instanceof MultiTermQuery) {
            System.out.println("MultiTermQuery term count = " + ((MultiTermQuery) q).getTotalNumberOfTerms());
          }
          System.out.println("totalHits = " + hits.totalHits);
          System.out.println("maxDoc()  = " + reader.maxDoc());
          System.out.println("numDocs() = " + reader.numDocs());
          for(int i=0;i<hits.scoreDocs.length;i++) {
            final int docID = hits.scoreDocs[i].doc;
            final Document doc = reader.document(docID);
            System.out.println("  " + i + ": doc=" + docID + " score=" + hits.scoreDocs[i].score + " " + printHitsField + " =" + doc.get(printHitsField));
          }
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    InstantiatedIndexReader tir = testIndex.indexReaderFactory();

    assertEquals(air.isCurrent(), tir.isCurrent());
    assertEquals(air.hasDeletions(), tir.hasDeletions());
    assertEquals(air.maxDoc(), tir.maxDoc());
    assertEquals(air.numDocs(), tir.numDocs());
    assertEquals(air.numDeletedDocs(), tir.numDeletedDocs());

    air.deleteDocument(3);
    tir.deleteDocument(3);
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    tir.deleteDocument(3);

    assertEquals(air.isCurrent(), tir.isCurrent());
    assertEquals(air.hasDeletions(), tir.hasDeletions());
    assertEquals(air.maxDoc(), tir.maxDoc());
    assertEquals(air.numDocs(), tir.numDocs());
    assertEquals(air.numDeletedDocs(), tir.numDeletedDocs());

    air.deleteDocument(8);
    tir.deleteDocument(8);
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    tir.deleteDocument(8);

    assertEquals(air.isCurrent(), tir.isCurrent());
    assertEquals(air.hasDeletions(), tir.hasDeletions());
    assertEquals(air.maxDoc(), tir.maxDoc());
    assertEquals(air.numDocs(), tir.numDocs());
    assertEquals(air.numDeletedDocs(), tir.numDeletedDocs());   

    // this (in 3.0) commits the deletions
    air.close();
    tir.close();
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    IndexWriter iw = new IndexWriter(benchmark.getRunData().getDirectory(),
        new IndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random()))
            .setOpenMode(OpenMode.APPEND));
    iw.close();
    IndexReader ir = DirectoryReader.open(benchmark.getRunData().getDirectory());
    assertEquals("1000 docs were added to the index, this is what we expect to find!",1000,ir.numDocs());
    ir.close();
  }

  /**
   * Test timed sequence task.
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    assertTrue("Index does not exist?...!", DirectoryReader.indexExists(benchmark.getRunData().getDirectory()));
    // now we should be able to open the index for write.
    IndexWriter iw = new IndexWriter(benchmark.getRunData().getDirectory(), new IndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random())).setOpenMode(OpenMode.APPEND));
    iw.close();
    IndexReader ir = DirectoryReader.open(benchmark.getRunData().getDirectory());
    assertEquals("100 docs were added to the index, this is what we expect to find!",100,ir.numDocs());
    ir.close();
  }

  public void testHighlightingTV() throws Exception {
    // 1. alg definition (required in every "logic" test)
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    assertTrue("Index does not exist?...!", DirectoryReader.indexExists(benchmark.getRunData().getDirectory()));
    // now we should be able to open the index for write.
    IndexWriter iw = new IndexWriter(benchmark.getRunData().getDirectory(), new IndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random())).setOpenMode(OpenMode.APPEND));
    iw.close();
    IndexReader ir = DirectoryReader.open(benchmark.getRunData().getDirectory());
    assertEquals("1000 docs were added to the index, this is what we expect to find!",1000,ir.numDocs());
    ir.close();
  }

  public void testHighlightingNoTvNoStore() throws Exception {
    // 1. alg definition (required in every "logic" test)
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    assertTrue("Index does not exist?...!", DirectoryReader.indexExists(benchmark.getRunData().getDirectory()));
    // now we should be able to open the index for write.
    IndexWriter iw = new IndexWriter(benchmark.getRunData().getDirectory(), new IndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random())).setOpenMode(OpenMode.APPEND));
    iw.close();
    IndexReader ir = DirectoryReader.open(benchmark.getRunData().getDirectory());
    assertEquals("1 docs were added to the index, this is what we expect to find!",1,ir.numDocs());
    ir.close();
  }

  // LUCENE-1994: test thread safety of SortableSingleDocMaker
  public void testDocMakerThreadSafety() throws Exception {
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    Benchmark benchmark = execBenchmark(algLines);

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

  /**
   * Test WriteLineDoc and LineDocSource.
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