Examples of org.apache.lucene.index.SegmentInfos

org.apache.lucene.index.SegmentInfos
A collection of segmentInfo objects with methods for operating on those segments in relation to the file system. @lucene.experimental

    infos.read(idx);
    return infos.size();
  }
  public static String getSegmentsInfo(Directory idx)
  {
    SegmentInfos infos=new SegmentInfos();
    try
    {
      infos.read(idx);
      String x="";
      for(int i=0;i<infos.size(); i++)
      {
        x += "[numDoc:" + infos.info(i).docCount + ",numDel:"+infos.info(i).getDelCount()+"]"; 
      }
      return x;
    } catch (Exception e)
    {
      return e.toString();

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  /** Records the taxonomy index creation time. */
  private final String createTime;
  
  /** Reads the commit data from a Directory. */
  private static Map<String, String> readCommitData(Directory dir) throws IOException {
    SegmentInfos infos = new SegmentInfos();
    infos.read(dir);
    return infos.getUserData();
  }

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  private volatile ParallelTaxonomyArrays taxoArrays;
  private volatile int nextID;


  /** Reads the commit data from a Directory. */
  private static Map<String, String> readCommitData(Directory dir) throws IOException {
    SegmentInfos infos = new SegmentInfos();
    infos.read(dir);
    return infos.getUserData();
  }

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            if (file.startsWith("segments") && !file.equals("segments.gen") && endSet.contains(file)) {
              startSet.add(file);
              if (LuceneTestCase.VERBOSE) {
                System.out.println("MDW: Unreferenced check: Ignoring segments file: " + file + " that we could not delete.");
              }
              SegmentInfos sis = new SegmentInfos();
              try {
                sis.read(delegate, file);
              } catch (IOException ioe) {
                // OK: likely some of the .si files were deleted
              }


              try {
                Set<String> ghosts = new HashSet<String>(sis.files(delegate, false));
                for (String s : ghosts) {
                  if (endSet.contains(s) && !startSet.contains(s)) {
                    assert pendingDeletions.contains(s);
                    if (LuceneTestCase.VERBOSE) {
                      System.out.println("MDW: Unreferenced check: Ignoring referenced file: " + s + " " +

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    int ndocsExpected = 20; // first 20 reuters docs.
    assertEquals("wrong number of docs in the index!", ndocsExpected, ir.numDocs());
    ir.close();


    // Make sure we have 3 segments:
    SegmentInfos infos = new SegmentInfos();
    infos.read(benchmark.getRunData().getDirectory());
    assertEquals(3, infos.size());
  }

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            if (file.startsWith("segments") && !file.equals("segments.gen") && endSet.contains(file)) {
              startSet.add(file);
              if (LuceneTestCase.VERBOSE) {
                System.out.println("MDW: Unreferenced check: Ignoring segments file: " + file + " that we could not delete.");
              }
              SegmentInfos sis = new SegmentInfos();
              try {
                sis.read(in, file);
              } catch (IOException ioe) {
                // OK: likely some of the .si files were deleted
              }


              try {
                Set<String> ghosts = new HashSet<>(sis.files(in, false));
                for (String s : ghosts) {
                  if (endSet.contains(s) && !startSet.contains(s)) {
                    assert pendingDeletions.contains(s);
                    if (LuceneTestCase.VERBOSE) {
                      System.out.println("MDW: Unreferenced check: Ignoring referenced file: " + s + " " +

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  private volatile TaxonomyIndexArrays taxoArrays;
  private volatile int nextID;


  /** Reads the commit data from a Directory. */
  private static Map<String, String> readCommitData(Directory dir) throws IOException {
    SegmentInfos infos = new SegmentInfos();
    infos.read(dir);
    return infos.getUserData();
  }

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   */
  public SegmentInfoPerCommit getSegment(Configuration configuration) throws IOException {
    ReadOnlyFileSystemDirectory directory = new ReadOnlyFileSystemDirectory(FileSystem.get(configuration), indexPath,
                                                                            false, configuration);


    SegmentInfos segmentInfos = new SegmentInfos();
    segmentInfos.read(directory);


    for (SegmentInfoPerCommit segmentInfo : segmentInfos) {
      if (segmentInfo.info.name.equals(segmentInfoName)) {
        return segmentInfo;
      }

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    List<Path> indexPaths = lucene2SeqConfiguration.getIndexPaths();
    for (Path indexPath : indexPaths) {
      ReadOnlyFileSystemDirectory directory = new ReadOnlyFileSystemDirectory(FileSystem.get(configuration), indexPath,
                                                                              false, configuration);
      SegmentInfos segmentInfos = new SegmentInfos();
      segmentInfos.read(directory);


      for (SegmentInfoPerCommit segmentInfo : segmentInfos) {
        LuceneSegmentInputSplit inputSplit = new LuceneSegmentInputSplit(indexPath, segmentInfo.info.name,
                                                                         segmentInfo.sizeInBytes());
        inputSplits.add(inputSplit);

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          // incref all files it refers to:
          if (SegmentInfos.generationFromSegmentsFileName(fileName) <= currentGen) {
            if (infoStream != null) {
              message("init: load commit \"" + fileName + "\"");
            }
            SegmentInfos sis = new SegmentInfos();
            sis.read(directory, fileName);
            CommitPoint commitPoint = new CommitPoint(sis);
            if (sis.getGeneration() == segmentInfos.getGeneration()) {
              currentCommitPoint = commitPoint;
            }
            commits.add(commitPoint);
            incRef(sis, true);
          }

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