org.apache.commons.io

Class HexDump


public class HexDump
extends java.lang.Object

Dumps data in hexadecimal format.

Provides a single function to take an array of bytes and display it in hexadecimal form.

Origin of code: POI.

Version:
$Id: HexDump.java 437680 2006-08-28 11:57:00Z scolebourne $
Authors:
Scott Sanders
Marc Johnson

Field Summary

static String
EOL
The line-separator (initializes to "line.separator" system property.
private static StringBuffer
_cbuffer
private static char[]
_hexcodes
private static StringBuffer
_lbuffer
private static int[]
_shifts

Constructor Summary

HexDump()
Instances should NOT be constructed in standard programming.

Method Summary

private static StringBuffer
dump(byte value)
Dump a byte value into a StringBuffer.
static void
dump(byte[] data, long offset, OutputStream stream, int index)
Dump an array of bytes to an OutputStream.
private static StringBuffer
dump(long value)
Dump a long value into a StringBuffer.

Field Details

EOL

public static final String EOL
The line-separator (initializes to "line.separator" system property.

_cbuffer

private static final StringBuffer _cbuffer

_hexcodes

private static final char[] _hexcodes

_lbuffer

private static final StringBuffer _lbuffer

_shifts

private static final int[] _shifts

Constructor Details

HexDump

public HexDump()
Instances should NOT be constructed in standard programming.

Method Details

dump

private static StringBuffer dump(byte value)
Dump a byte value into a StringBuffer.
Parameters:
value - the byte value to be dumped
Returns:
StringBuffer containing the dumped value.

dump

public static void dump(byte[] data,
                        long offset,
                        OutputStream stream,
                        int index)
            throws IOException,
                   ArrayIndexOutOfBoundsException,
                   IllegalArgumentException
Dump an array of bytes to an OutputStream.
Parameters:
data - the byte array to be dumped
offset - its offset, whatever that might mean
stream - the OutputStream to which the data is to be written
index - initial index into the byte array

dump

private static StringBuffer dump(long value)
Dump a long value into a StringBuffer.
Parameters:
value - the long value to be dumped
Returns:
StringBuffer containing the dumped value.