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

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

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    if (skip)
      return;
    writeRecords(2, true, true);

    Reader reader = new Reader(fs.open(path), fs.getFileStatus(path).getLen(), conf);
    Scanner scanner = reader.createScanner();
    byte[] buf = new byte[K];
    try {
      scanner.entry().getKey(buf, -1);
      Assert.fail("Failed to handle key negative offset.");
    }
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    Reader reader =
        new Reader(fs.open(path), fs.getFileStatus(path).getLen(), conf);
    Assert.assertFalse(reader.isSorted());
    Assert.assertEquals((int) reader.getEntryCount(), 4);

    Scanner scanner = reader.createScanner();

    try {

      // read key and value
      byte[] kbuf = new byte[BUF_SIZE];
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    Reader reader =
        new Reader(fs.open(path), fs.getFileStatus(path).getLen(), conf);
    Assert.assertFalse(reader.isSorted());
    Assert.assertEquals((int) reader.getEntryCount(), 4);

    Scanner scanner = reader.createScanner();

    try {

      // read key and value
      byte[] kbuf = new byte[BUF_SIZE];
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  }

  public void testFailureSeek() throws IOException {
    Reader reader =
        new Reader(fs.open(path), fs.getFileStatus(path).getLen(), conf);
    Scanner scanner = reader.createScanner();

    try {
      // can't find ceil
      try {
        scanner.lowerBound("keyN".getBytes());
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      return;
    closeOutput();

    Reader reader = new Reader(fs.open(path), fs.getFileStatus(path).getLen(), conf);
    Assert.assertTrue(reader.isSorted());
    Scanner scanner = reader.createScanner();
    Assert.assertTrue(scanner.atEnd());
    scanner.close();
    reader.close();
  }
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  public void testLocate() throws IOException {
    if (skip)
      return;
    writeRecords(3 * records1stBlock);
    Reader reader = new Reader(fs.open(path), fs.getFileStatus(path).getLen(), conf);
    Scanner scanner = reader.createScanner();
    Location loc2 =
        locate(scanner, composeSortedKey(KEY, 3 * records1stBlock, 2)
            .getBytes());
    Location locLastIn1stBlock =
        locate(scanner, composeSortedKey(KEY, 3 * records1stBlock,
 
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    if (skip)
      return;
    writeRecords(5);

    Reader reader = new Reader(fs.open(path), fs.getFileStatus(path).getLen(), conf);
    Scanner scanner = reader.createScanner();

    byte[] vbuf = new byte[BUF_SIZE];
    int vlen = scanner.entry().getValueLength();
    scanner.entry().getValue(vbuf);
    Assert.assertEquals(new String(vbuf, 0, vlen), VALUE + 0);
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    if (skip)
      return;
    closeOutput();

    Reader reader = new Reader(fs.open(path), fs.getFileStatus(path).getLen(), conf);
    Scanner scanner = reader.createScanner();
    try {
      scanner.lowerBound("keyX".getBytes(), -1, 4);
      Assert.fail("Error on handling negative offset.");
    }
    catch (Exception e) {
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    if (skip)
      return;
    closeOutput();

    Reader reader = new Reader(fs.open(path), fs.getFileStatus(path).getLen(), conf);
    Scanner scanner = reader.createScanner();
    try {
      scanner.lowerBound("keyX".getBytes(), 0, -1);
      Assert.fail("Error on handling negative length.");
    }
    catch (Exception e) {
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      return;
    writeRecords(3);

    Reader reader =
        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.");
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