Examples of org.apache.lucene.index.IndexWriterConfig

org.apache.lucene.index.IndexWriterConfig
Holds all the configuration of {@link IndexWriter}. You should instantiate this class, call the setters to set your configuration, then pass it to {@link IndexWriter}. Note that {@link IndexWriter} makes a private clone; ifyou need to subsequently change settings use {@link IndexWriter#getConfig}.
All setter methods return {@link IndexWriterConfig} to allow chainingsettings conveniently, for example:
```
 IndexWriterConfig conf = new IndexWriterConfig(analyzer); conf.setter1().setter2(); 
```
@since 3.1

    // 4. test specific checks after the benchmark run completed.
    assertEquals("TestSearchTask was supposed to be called!",279,CountingSearchTestTask.numSearches);
    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();

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    //we probably should use a different doc/query maker, but...
    assertTrue("TestSearchTask was supposed to be called!", CountingHighlighterTestTask.numDocsRetrieved >= CountingHighlighterTestTask.numHighlightedResults && CountingHighlighterTestTask.numHighlightedResults > 0);


    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();
  }

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    //we probably should use a different doc/query maker, but...
    assertTrue("TestSearchTask was supposed to be called!", CountingHighlighterTestTask.numDocsRetrieved >= CountingHighlighterTestTask.numHighlightedResults && CountingHighlighterTestTask.numHighlightedResults > 0);


    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();
  }

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    // 4. test specific checks after the benchmark run completed.
    assertEquals("TestSearchTask was supposed to be called!",139,CountingSearchTestTask.numSearches);
    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();
  }

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    // Run algo
    benchmark = execBenchmark(algLines2);


    // 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(numLines + " lines were created but " + ir.numDocs() + " docs are in the index", numLines, ir.numDocs());

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  }


  private static IndexReader makeEmptyIndex(Random random, final int numDocs) throws IOException {
    assert numDocs > 0;
    Directory d = new MockDirectoryWrapper(random, new RAMDirectory());
    IndexWriter w = new IndexWriter(d, new IndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random)));
    for (int i = 0; i < numDocs; i++) {
      w.addDocument(new Document());
    }
    w.forceMerge(1);
    w.commit();

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  @Override
  protected void setUp() throws Exception {
    directory = new RAMDirectory();
    analyzer = new WhitespaceAnalyzer(Version.LUCENE_43);
    selectionProperties = new HashMap<String, String>();
    IndexWriterConfig conf = new IndexWriterConfig(Version.LUCENE_43, analyzer);
    conf.setOpenMode(OpenMode.CREATE);
    IndexWriter writer = new IndexWriter(directory, conf);


    writer.addDocument(doc("prop1=val1", "prop2=val1", "prop5=val1"));
    writer.addDocument(doc("prop1=val2", "prop3=val1", "prop7=val7"));
    writer.addDocument(doc("prop1=val2", "prop3=val2", "prop3=val3"));

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  }


  private void modifiedSetup() throws CorruptIndexException, LockObtainFailedException, IOException {
    directory = new RAMDirectory();
    analyzer = new WhitespaceAnalyzer(Version.LUCENE_43);
    IndexWriterConfig conf = new IndexWriterConfig(Version.LUCENE_43, analyzer);
    conf.setOpenMode(OpenMode.CREATE);
    IndexWriter writer = new IndexWriter(directory, conf);


    writer.addDocument(doc("prop1=val1", "prop2=val1", "prop5=val1"));
    writer.addDocument(doc("prop1=val2", "prop3=val1", "prop7=val7"));
    writer.addDocument(doc("prop1=val2", "prop3=val2", "prop3=val3"));

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  @Override
  protected void setUp() throws Exception {
    directory = new RAMDirectory();
    analyzer = new WhitespaceAnalyzer(Version.LUCENE_43);
    IndexWriterConfig config = new IndexWriterConfig(Version.LUCENE_43, analyzer);
    config.setOpenMode(OpenMode.CREATE);
    IndexWriter writer = new IndexWriter(directory, config);
    Document doc = new Document();
    addMetaDataField(doc, PathHandlerName, new String[] { "/a/b/c", "/a/b/d" });
    writer.addDocument(doc);
    writer.commit();

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    // TODO Auto-generated constructor stub
  }


  @Before
  public void setUp() throws Exception {
    IndexWriterConfig config = new IndexWriterConfig(Version.LUCENE_43, new StandardAnalyzer(
        Version.LUCENE_43));
    config.setMaxBufferedDocs(1000);
    m_indexWriter = new IndexWriter(new RAMDirectory(), config);
  }

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