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

Class org.apache.lucene.store.RAMDirectory

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

org.apache.lucene.store.RAMDirectory.listAll()

        if (gen > 0) {
          // Now that we've removed a commit point, which
          // should have orphan'd at least one index file.
          // Open & close a writer and assert that it
          // actually removed something:
          int preCount = dir.listAll().length;
          writer = new IndexWriter(dir, new WhitespaceAnalyzer(), false, policy, IndexWriter.MaxFieldLength.LIMITED);
          writer.close();
          int postCount = dir.listAll().length;
          assertTrue(postCount < preCount);
        }

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          // Open & close a writer and assert that it
          // actually removed something:
          int preCount = dir.listAll().length;
          writer = new IndexWriter(dir, new WhitespaceAnalyzer(), false, policy, IndexWriter.MaxFieldLength.LIMITED);
          writer.close();
          int postCount = dir.listAll().length;
          assertTrue(postCount < preCount);
        }
      }


      dir.close();

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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.listAll();


    /*
    for(int j=0;j<files.length;j++) {
      System.out.println(j + ": " + files[j]);
    }

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    copyFile(dir, "segments_3", "segments_2");


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


    String[] filesPre = dir.listAll();


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


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


    Arrays.sort(files);
    Arrays.sort(files2);

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


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


      for(int iter=0;iter<3;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.listAll();
        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, IndexWriter.MaxFieldLength.LIMITED);
      writer.setRAMBufferSizeMB(0.000001);
      int lastNumFile = dir.listAll().length;
      for(int j=0;j<9;j++) {
        Document doc = new Document();
        doc.add(new Field("field", "aaa" + j, Field.Store.YES, Field.Index.ANALYZED));
        writer.addDocument(doc);
        int numFile = dir.listAll().length;

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      int lastNumFile = dir.listAll().length;
      for(int j=0;j<9;j++) {
        Document doc = new Document();
        doc.add(new Field("field", "aaa" + j, Field.Store.YES, Field.Index.ANALYZED));
        writer.addDocument(doc);
        int numFile = dir.listAll().length;
        // Verify that with a tiny RAM buffer we see new
        // segment after every doc
        assertTrue(numFile > lastNumFile);
        lastNumFile = numFile;
      }

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    lmp.setUseCompoundFile(true);
    IndexWriter w3 = new IndexWriter(dir, conf);
    w3.addIndexes(readers);
    w3.close();
    
    assertEquals("Only one compound segment should exist", 3, dir.listAll().length);
  }
 
  // LUCENE-2996: tests that addIndexes(IndexReader) applies existing deletes correctly.
  public void testExistingDeletes() throws Exception {
    Directory[] dirs = new Directory[2];

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