Package org.apache.hadoop.io.file.tfile.TFile.Reader

Examples of org.apache.hadoop.io.file.tfile.TFile.Reader.Scanner.seekTo()

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    assertTrue("seeked key does not match", Arrays.equals(getSomeKey(50),
        readKey));

    scanner.seekTo(new byte[0]);
    byte[] val1 = readValue(scanner);
    scanner.seekTo(new byte[0]);
    byte[] val2 = readValue(scanner);
    assertTrue(Arrays.equals(val1, val2));
   
    // check for lowerBound
    scanner.lowerBound(getSomeKey(50));
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      finally {
      }

      // can't seek
      try {
        scanner.seekTo("keyM".getBytes());
        Assert.fail("Cannot search a unsorted TFile!");
      }
      catch (Exception e) {
        // noop, expecting excetions
      }
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        new Reader(fs.open(path), fs.getFileStatus(path).getLen(), conf);
    Scanner scanner = reader.createScanner();
    try {
      // test negative array offset
      try {
        scanner.seekTo("keyY".getBytes(), -1, 4);
        Assert.fail("Failed to handle negative offset.");
      } catch (Exception e) {
        // noop, expecting exceptions
      }
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        // noop, expecting exceptions
      }

      // test negative array length
      try {
        scanner.seekTo("keyY".getBytes(), 0, -2);
        Assert.fail("Failed to handle negative key length.");
      } catch (Exception e) {
        // noop, expecting exceptions
      }
    } finally {
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  }

  private void checkBlockIndex(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, recordIndex).getBytes());
    Assert.assertEquals(blockIndexExpected, scanner.currentLocation
        .getBlockIndex());
    scanner.close();
    reader.close();
  }
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        new Reader(fs.open(path), fs.getFileStatus(path).getLen(), conf);
    Scanner scanner = reader.createScanner();
    try {
      // test negative array offset
      try {
        scanner.seekTo("keyY".getBytes(), -1, 4);
        Assert.fail("Failed to handle negative offset.");
      } catch (Exception e) {
        // noop, expecting exceptions
      }
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        // noop, expecting exceptions
      }

      // test negative array length
      try {
        scanner.seekTo("keyY".getBytes(), 0, -2);
        Assert.fail("Failed to handle negative key length.");
      } catch (Exception e) {
        // noop, expecting exceptions
      }
    } finally {
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  }

  private void checkBlockIndex(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, recordIndex).getBytes());
    Assert.assertEquals(blockIndexExpected, scanner.currentLocation
        .getBlockIndex());
    scanner.close();
    reader.close();
  }
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    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);
    assertTrue("seeked key does not match", Arrays.equals(getSomeKey(50),
        readKey));
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        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);
    assertTrue("seeked key does not match", Arrays.equals(getSomeKey(50),
        readKey));
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