Package org.apache.hadoop.zebra.tfile.TFile

Examples of org.apache.hadoop.zebra.tfile.TFile.Reader.createScanner()

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  static void readRecords(FileSystem fs, Path path, int count,
      Configuration conf) throws IOException {
    Reader reader =
        new Reader(fs.open(path), fs.getFileStatus(path).getLen(), conf);
    Scanner scanner = reader.createScanner();

    try {
      for (int nx = 0; nx < count; nx++, scanner.advance()) {
        Assert.assertFalse(scanner.atEnd());
        // Assert.assertTrue(scanner.next());
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  }

  private void checkBlockIndex(int count, int recordIndex,
      int blockIndexExpected) throws IOException {
    Reader reader = new Reader(fs.open(path), fs.getFileStatus(path).getLen(), conf);
    Scanner scanner = reader.createScanner();
    scanner.seekTo(composeSortedKey(KEY, count, recordIndex).getBytes());
    Assert.assertEquals(blockIndexExpected, scanner.currentLocation
        .getBlockIndex());
    scanner.close();
    reader.close();
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    Reader reader =
      new Reader(fsdis, fs.getFileStatus(path).getLen(), conf);
    KeySampler kSampler =
        new KeySampler(rng, reader.getFirstKey(), reader.getLastKey(),
            keyLenGen);
    Scanner scanner = reader.createScanner();
    BytesWritable key = new BytesWritable();
    BytesWritable val = new BytesWritable();
    timer.reset();
    timer.start();
    for (int i = 0; i < options.seekCount; ++i) {
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    fout.close();
    FSDataInputStream fin = fs.open(ncTFile);
    Reader reader =
        new Reader(fs.open(ncTFile), fs.getFileStatus(ncTFile).getLen(), conf);

    Scanner scanner = reader.createScanner();
    readAllRecords(scanner);
    scanner.seekTo(getSomeKey(50));
    assertTrue("location lookup failed", scanner.seekTo(getSomeKey(50)));
    // read the key and see if it matches
    byte[] readKey = readKey(scanner);
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    fout.close();
    FSDataInputStream fin = fs.open(uTfile);
    Reader reader =
        new Reader(fs.open(uTfile), fs.getFileStatus(uTfile).getLen(), conf);

    Scanner scanner = reader.createScanner();
    readAllRecords(scanner);
    scanner.close();
    reader.close();
    fin.close();
    fs.delete(uTfile, true);
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