org.savarese.vserv.tcpip
Class OctetConverter

java.lang.Object
  org.savarese.vserv.tcpip.OctetConverter

public final class OctetConverter

extends java.lang.Object

OctetConverter is a utility singleton class for converting IP octets to and from other representations.

Author:

Daniel F. Savarese

Method Summary

static void	intToOctets(int address, byte[] octets) Same as intToOctets(address, octets, 0);
static void	intToOctets(int address, byte[] octets, int offset) Converts a 32-bit word representation of an IPv4 address to a byte array of octets.
static void	intToString(java.lang.StringBuffer buffer, int address) Converts a 32-bit word representation of an IPv4 address to a string representation.
static void	longToOctets(long address, byte[] octets) Same as longToOctets(address, octets, 0);
static void	longToOctets(long address, byte[] octets, int offset) Converts a 64-bit word to a byte array of octets.
static int	octetsToInt(byte[] octets) Same as octetsToInt(octets, 0);
static int	octetsToInt(byte[] octets, int offset) Converts a set of IPv4 octets to a 32-bit word.
static long	octetsToLong(byte[] octets) Same as octetsToLong(octets, 0);
static long	octetsToLong(byte[] octets, int offset) Converts a set of octets to a 64-bit word.
static void	octetsToString(java.lang.StringBuffer buffer, byte[] octets) Same as octetsToString(buffer, octets, 0);
static void	octetsToString(java.lang.StringBuffer buffer, byte[] octets, int offset) Converts a set of IPv4 octets to a string representation.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

octetsToInt

public static final int octetsToInt(byte[] octets,
                                    int offset)

Converts a set of IPv4 octets to a 32-bit word.

Parameters:

octets - A byte array containing the IPv4 octets.

offset - The offset into the array where the octets start.

Returns:

The 32-bit word representation of the IPv4 address.

octetsToInt

public static final int octetsToInt(byte[] octets)

Same as octetsToInt(octets, 0);

octetsToLong

public static final long octetsToLong(byte[] octets,
                                      int offset)

Converts a set of octets to a 64-bit word.

Parameters:

octets - A byte array containing the octets.

offset - The offset into the array where the octets start.

Returns:

The 64-bit word representation of the octets.

octetsToLong

public static final long octetsToLong(byte[] octets)

Same as octetsToLong(octets, 0);

octetsToString

public static final void octetsToString(java.lang.StringBuffer buffer,
                                        byte[] octets,
                                        int offset)

Converts a set of IPv4 octets to a string representation.

Parameters:

buffer - The StringBuffer to which to append the string.

octets - A byte array containing the IPv4 octets.

offset - The offset into the array where the octets start.

octetsToString

public static final void octetsToString(java.lang.StringBuffer buffer,
                                        byte[] octets)

Same as octetsToString(buffer, octets, 0);

intToString

public static final void intToString(java.lang.StringBuffer buffer,
                                     int address)

Converts a 32-bit word representation of an IPv4 address to a string representation.

Parameters:

buffer - The StringBuffer to which to append the string.

address - The 32-bit word representation of the address.

intToOctets

public static final void intToOctets(int address,
                                     byte[] octets,
                                     int offset)

Converts a 32-bit word representation of an IPv4 address to a byte array of octets.

Parameters:

address - The 32-bit word representation of the IPv4 address.

octets - The byte array in which to store the IPv4 octets.

offset - The offset into the array where the octets start.

intToOctets

public static final void intToOctets(int address,
                                     byte[] octets)

Same as intToOctets(address, octets, 0);

longToOctets

public static final void longToOctets(long address,
                                      byte[] octets,
                                      int offset)

Converts a 64-bit word to a byte array of octets.

Parameters:

address - The 64-bit word.

octets - The byte array in which to store octets.

offset - The offset into the array where the octets start.

longToOctets

public static final void longToOctets(long address,
                                      byte[] octets)

Same as longToOctets(address, octets, 0);