Package org.apache.lucene.store

Examples of org.apache.lucene.store.RAMDirectory.list()

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      // String[] files = startDir.list();
      long diskUsage = startDir.sizeInBytes();

      long startDiskUsage = 0;
      String[] files = startDir.list();
      for(int i=0;i<files.length;i++) {
        startDiskUsage += startDir.fileLength(files[i]);
      }

      for(int iter=0;iter<6;iter++) {
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        writer.close();

        long gen = SegmentInfos.getCurrentSegmentGeneration(dir);
        assertTrue("segment generation should be > 1 but got " + gen, gen > 1);

        String[] files = dir.list();
        for(int i=0;i<files.length;i++) {
          if (files[i].endsWith(".cfs")) {
            dir.deleteFile(files[i]);
            break;
          }
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    public void testSmallRAMBuffer() throws IOException {
      RAMDirectory dir = new RAMDirectory();     
      IndexWriter writer  = new IndexWriter(dir, new WhitespaceAnalyzer(), true);
      writer.setRAMBufferSizeMB(0.000001);
      int lastNumFile = dir.list().length;
      for(int j=0;j<9;j++) {
        Document doc = new Document();
        doc.add(new Field("field", "aaa" + j, Field.Store.YES, Field.Index.TOKENIZED));
        writer.addDocument(doc);
        int numFile = dir.list().length;
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      int lastNumFile = dir.list().length;
      for(int j=0;j<9;j++) {
        Document doc = new Document();
        doc.add(new Field("field", "aaa" + j, Field.Store.YES, Field.Index.TOKENIZED));
        writer.addDocument(doc);
        int numFile = dir.list().length;
        // Verify that with a tiny RAM buffer we see new
        // segment after every doc
        assertTrue(numFile > lastNumFile);
        lastNumFile = numFile;
      }
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      for(int j=1;j<52;j++) {
        Document doc = new Document();
        doc.add(new Field("field", "aaa" + j, Field.Store.YES, Field.Index.TOKENIZED));
        writer.addDocument(doc);
        _TestUtil.syncConcurrentMerges(writer);
        long gen = SegmentInfos.generationFromSegmentsFileName(SegmentInfos.getCurrentSegmentFileName(dir.list()));
        if (j == 1)
          lastGen = gen;
        else if (j < 10)
          // No new files should be created
          assertEquals(gen, lastGen);
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      long lastGen = -1;
      for(int j=1;j<52;j++) {
        writer.deleteDocuments(new Term("field", "aaa" + j));
        _TestUtil.syncConcurrentMerges(writer);
        long gen = SegmentInfos.generationFromSegmentsFileName(SegmentInfos.getCurrentSegmentFileName(dir.list()));
        if (j == 1)
          lastGen = gen;
        else if (j < 10) {
          // No new files should be created
          assertEquals(gen, lastGen);
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    reader.setNorm(21, "content", (float) 1.5);
    reader.close();

    // Now, artificially create an extra .del file & extra
    // .s0 file:
    String[] files = dir.list();

    /*
    for(int i=0;i<files.length;i++) {
      System.out.println(i + ": " + files[i]);
    }
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    copyFile(dir, "segments_a", "segments_2");

    // Create a bogus cfs file shadowing a non-cfs segment:
    copyFile(dir, "_2.cfs", "_3.cfs");

    String[] filesPre = dir.list();

    // Open & close a writer: it should delete the above 4
    // files and nothing more:
    writer = new IndexWriter(dir, new WhitespaceAnalyzer(), false);
    writer.close();
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    // Open & close a writer: it should delete the above 4
    // files and nothing more:
    writer = new IndexWriter(dir, new WhitespaceAnalyzer(), false);
    writer.close();

    String[] files2 = dir.list();
    dir.close();

    Arrays.sort(files);
    Arrays.sort(files2);
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      // String[] files = startDir.list();
      long diskUsage = startDir.sizeInBytes();

      long startDiskUsage = 0;
      String[] files = startDir.list();
      for(int i=0;i<files.length;i++) {
        startDiskUsage += startDir.fileLength(files[i]);
      }

      for(int method=0;method<3;method++) {
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