static final int RFS_ERR = 0x5;
    static final int ACT_ERR = 0x6;
    static final int CFT_ERR = 0x7;

    // type/class
    static final int NB_IN     = 0x00200001;
    static final int NBSTAT_IN = 0x00210001;
    static final int NB        = 0x0020;
    static final int NBSTAT    = 0x0021;
    static final int IN        = 0x0001;
    static final int A         = 0x0001;
    static final int NS        = 0x0002;

// special headers that contain no data section.
func (tr *Reader) handleRegularFile(hdr *Header) error {
	nb := hdr.Size
	if isHeaderOnlyType(hdr.Typeflag) {
		nb = 0
	}
	if nb < 0 {
		return ErrHeader
	}

	tr.pad = blockPadding(nb)
	tr.curr = &regFileReader{r: tr.r, nb: nb}
	return nil
}

// handleSparseFile checks if the current file is a sparse format of any type

type regFileWriter struct {
	w  io.Writer // Underlying Writer
	nb int64     // Number of remaining bytes to write
}

func (fw *regFileWriter) Write(b []byte) (n int, err error) {
	overwrite := int64(len(b)) > fw.nb
	if overwrite {
		b = b[:fw.nb]
	}
	if len(b) > 0 {
		n, err = fw.w.Write(b)
		fw.nb -= int64(n)
	}
	switch {
	case err != nil:
		return n, err
	case overwrite:

    static final int RFS_ERR = 0x5;
    static final int ACT_ERR = 0x6;
    static final int CFT_ERR = 0x7;

    // type/class
    static final int NB_IN = 0x00200001;
    static final int NBSTAT_IN = 0x00210001;
    static final int NB = 0x0020;
    static final int NBSTAT = 0x0021;
    static final int IN = 0x0001;
    static final int A = 0x0001;
    static final int NS = 0x0002;

  }

  public void testReadLines() throws IOException {
    List<String> lines = CharStreams.readLines(new StringReader("a\nb\nc"));
    assertEquals(ImmutableList.of("a", "b", "c"), lines);
  }

  public void testReadLines_withLineProcessor() throws IOException {
    String text = "a\nb\nc";

    // Test a LineProcessor that always returns false.
    Reader r = new StringReader(text);
    LineProcessor<Integer> alwaysFalse =

  }

  public void testReadLines() throws IOException {
    List<String> lines = CharStreams.readLines(new StringReader("a\nb\nc"));
    assertEquals(ImmutableList.of("a", "b", "c"), lines);
  }

  public void testReadLines_withLineProcessor() throws IOException {
    String text = "a\nb\nc";

    // Test a LineProcessor that always returns false.
    Reader r = new StringReader(text);
    LineProcessor<Integer> alwaysFalse =

        assertEquals("4", "a234a", StringUtil.replace("12341", "1", "a"));
        assertEquals("5", "ab234abab234ab", StringUtil.replace("1234112341", "1", "ab"));
        assertEquals("6", "a\\nb", StringUtil.replace("a\nb", "\n", "\\n"));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testSplit() throws Exception {
        final String[] array = StringUtil.split("aaa\nbbb", "\n");

		chunkMax = chunkLimit / len(b) * len(b)
		if chunkMax == 0 {
			chunkMax = len(b)
		}
	}
	nb := bytealg.MakeNoZero(n)[:n:n]
	bp := copy(nb, b)
	for bp < n {
		chunk := bp
		if chunk > chunkMax {
			chunk = chunkMax
		}
		bp += copy(nb[bp:], nb[:chunk])
	}
	return nb
}

// ToUpper returns a copy of the byte slice s with all Unicode letters mapped to
// their upper case.

	ctx := r.Context()

	objectAPI, _ := validateAdminReq(ctx, w, r, policy.RebalanceAdminAction)
	if objectAPI == nil {
		return
	}

	// NB rebalance-start admin API is always coordinated from first pool's
	// first node. The following is required to serialize (the effects of)
	// concurrent rebalance-start commands.

			dataDir = ddir
		}
	}

	if max >= writeQuorum {
		return dataDir
	}

	return ""
}

// Returns number of errors that occurred the most (incl. nil) and the
// corresponding error value. NB When there is more than one error value that
// occurs maximum number of times, the error value returned depends on how
// golang's map orders keys. This doesn't affect correctness as long as quorum