org.apache.commons.io
Class HexDump

java.lang.Object
  extended by org.apache.commons.io.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 369075 2006-01-14 18:23:42Z scolebourne $
Author:
Scott Sanders, Marc Johnson

Field Summary
private static java.lang.StringBuffer _cbuffer
           
private static char[] _hexcodes
           
private static java.lang.StringBuffer _lbuffer
           
private static int[] _shifts
           
static java.lang.String EOL
          The line-separator (initializes to "line.separator" system property.
 
Constructor Summary
HexDump()
          Instances should NOT be constructed in standard programming.
 
Method Summary
private static java.lang.StringBuffer dump(byte value)
          Dump a byte value into a StringBuffer.
static void dump(byte[] data, long offset, java.io.OutputStream stream, int index)
          Dump an array of bytes to an OutputStream.
private static java.lang.StringBuffer dump(long value)
          Dump a long value into a StringBuffer.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

EOL

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


_lbuffer

private static final java.lang.StringBuffer _lbuffer

_cbuffer

private static final java.lang.StringBuffer _cbuffer

_hexcodes

private static final char[] _hexcodes

_shifts

private static final int[] _shifts
Constructor Detail

HexDump

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

Method Detail

dump

public static void dump(byte[] data,
                        long offset,
                        java.io.OutputStream stream,
                        int index)
                 throws java.io.IOException,
                        java.lang.ArrayIndexOutOfBoundsException,
                        java.lang.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
Throws:
java.io.IOException - is thrown if anything goes wrong writing the data to stream
java.lang.ArrayIndexOutOfBoundsException - if the index is outside the data array's bounds
java.lang.IllegalArgumentException - if the output stream is null

dump

private static java.lang.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.

dump

private static java.lang.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.