Examples of org.apache.lucene.store.Directory

org.apache.lucene.store.Directory
A Directory is a flat list of files. Files may be written once, when they are created. Once a file is created it may only be opened for read, or deleted. Random access is permitted both when reading and writing.
Java's i/o APIs not used directly, but rather all i/o is through this API. This permits things such as:
- implementation of RAM-based indices;
- implementation indices stored in a database, via JDBC;
- implementation of an index as a single file;
Directory locking is implemented by an instance of {@link LockFactory}, and can be changed for each Directory instance using {@link #setLockFactory}.

                    access = new IndexAccess();
                    access.modifier = new IndexModifier(path, analyzer, recreate);
                    ## LUCENE2 end ##*/
                    //## LUCENE3 begin ##
                    File f = new File(path);
                    Directory indexDir = FSDirectory.open(f);
                    boolean recreate = !IndexReader.indexExists(indexDir);
                    Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_30);
                    IndexWriter writer = new IndexWriter(indexDir, analyzer,
                            recreate, IndexWriter.MaxFieldLength.UNLIMITED);
                    //see http://wiki.apache.org/lucene-java/NearRealtimeSearch

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  int numReps = Integer.parseInt(args[2]);
  int numsegs = Integer.parseInt(args[3]);
  
  
  Directory srcDir = FSDirectory.open(srcIdx);
  Directory targetDir = FSDirectory.open(targetIndx);
  int timesReplicatePerSeg = numReps/numsegs;
  IndexWriter writer = new IndexWriter(targetDir,new StandardAnalyzer(Version.LUCENE_CURRENT),MaxFieldLength.UNLIMITED);
  writer.setMaxMergeDocs(Integer.MAX_VALUE);
  writer.setMergeFactor(Integer.MAX_VALUE);

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   * @param args
   */
  public static void main(String[] args) throws Exception{
    File idx = new File("/Users/jwang/dataset/people-search-index-norm/beef");
    
    Directory idxDir = FSDirectory.open(idx);
    IndexReader reader=IndexReader.open(idxDir,true);
    
    BoboIndexReader boboReader=BoboIndexReader.getInstance(reader);
    BoboBrowser browser=new BoboBrowser(boboReader);
    int iter=1000000;

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    doTest(req,7,answer,null);


  }
  
  public void testIndexReaderReopen() throws Exception{
    Directory idxDir = new RAMDirectory();
    Document[] docs = buildData();
    
    IndexWriter writer = new IndexWriter(idxDir,new StandardAnalyzer(Version.LUCENE_29),MaxFieldLength.UNLIMITED);
    writer.addDocument(docs[0]);
    writer.optimize();
    writer.commit();
    
    IndexReader idxReader = IndexReader.open(idxDir,true);
    BoboIndexReader boboReader = BoboIndexReader.getInstance(idxReader,_fconf);


    
    for (int i=1;i<docs.length;++i){
      Document doc = docs[i];
      int numDocs = boboReader.numDocs();
      BoboIndexReader reader = (BoboIndexReader)boboReader.reopen(true);
      assertSame(boboReader,reader);
      
      Directory tmpDir = new RAMDirectory();
      IndexWriter subWriter = new IndexWriter(tmpDir,new StandardAnalyzer(Version.LUCENE_29),MaxFieldLength.UNLIMITED);
      subWriter.addDocument(doc);
      subWriter.optimize();
      subWriter.close();
      writer.addIndexesNoOptimize(new Directory[]{tmpDir});

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  public void testTime() throws Exception
  {
    List<FacetHandler<?>> facetHandlers = new ArrayList<FacetHandler<?>>();
    /* Underlying time facet for DynamicTimeRangeFacetHandler */
    facetHandlers.add(new RangeFacetHandler("timeinmillis", new PredefinedTermListFactory(Long.class, DynamicTimeRangeFacetHandler.NUMBER_FORMAT),null));
    Directory idxDir = new RAMDirectory();
    IndexWriter writer = new IndexWriter(idxDir,new StandardAnalyzer(Version.LUCENE_29),MaxFieldLength.UNLIMITED);
    
    long now = System.currentTimeMillis();
    DecimalFormat df = new DecimalFormat(DynamicTimeRangeFacetHandler.NUMBER_FORMAT);
    for(long l=0; l<53; l++)

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      return dataList.toArray(new Document[dataList.size()]);
  }
  
  private Directory createIndexTwo(){
    Directory dir = new RAMDirectory();
    try {
      Document[] data= createDataTwo();
      
      TestDataDigester testDigester=new TestDataDigester(_facetHandlers,data);
      BoboIndexer indexer=new BoboIndexer(testDigester,dir);

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    return dir;
  }
  
  
  private Directory createIndex(){
    Directory dir = new RAMDirectory();
    try {
      Document[] data= createData();
      
      TestDataDigester testDigester=new TestDataDigester(_facetHandlers,data);
      BoboIndexer indexer=new BoboIndexer(testDigester,dir);

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    BrowseResult result = null;
    BoboBrowser boboBrowser=null;
    int expectedHitNum = (_documentSize/2) - 1;
    try {
      Directory ramIndexDir = createIndex();
      IndexReader srcReader=IndexReader.open(ramIndexDir,true);
      boboBrowser = new BoboBrowser(BoboIndexReader.getInstance(srcReader,_facetHandlers, null));
      result = boboBrowser.browse(br);
      
      assertEquals(expectedHitNum,result.getNumHits());

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    System.out.println("testNotValuesForRangeFacetHandler");
    BrowseResult result = null;
    BoboBrowser boboBrowser=null;
    
    try {
      Directory ramIndexDir = createIndexTwo();
      IndexReader srcReader=IndexReader.open(ramIndexDir,true);
      boboBrowser = new BoboBrowser(BoboIndexReader.getInstance(srcReader,_facetHandlers, null));
      
      BrowseRequest br=new BrowseRequest();
      br.setCount(20);

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    }
    return dataList.toArray(new Document[dataList.size()]);
}
  
  private Directory createIndex(){
    Directory dir = new RAMDirectory();
    try {
      Document[] data= createData();
      
      TestDataDigester testDigester=new TestDataDigester(_facetHandlers,data);
      BoboIndexer indexer=new BoboIndexer(testDigester,dir);

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