org.n52.janmayen.net

Class IPAddress

java.lang.Object

org.n52.janmayen.net.IPAddress

All Implemented Interfaces:

Comparable<IPAddress>

public class IPAddress
extends Object
implements Comparable<IPAddress>

Encapsulation of an IP address.

Field Summary

Fields

Modifier and Type	Field and Description
static int	IPV4_BIT_SIZE
static int	IPV4_BYTE_SIZE
static int	IPV6_BIT_SIZE
static int	IPV6_BYTE_SIZE

Constructor Summary

Constructors

Constructor and Description
IPAddress(byte[] address) Creates a new IPAddress from an four element byte array.
IPAddress(InetAddress address) Creates a new IPAddress from an InetAddress.
IPAddress(int address) Creates a new IPAddress from an 32-Bit integer.
IPAddress(long upperBits, long lowerBits) Creates a new IPAddress from two 64-Bit integers.
IPAddress(String address) Creates a new IPAddress from its string representation.

Method Summary

Modifier and Type	Method and Description
(package private) static int	compareLittleEndianUnsignedByte(byte[] a, byte[] b) Compares to byte arrays.
int	compareTo(IPAddress o)
boolean	equals(Object obj)
int	getBitSize() Get the number of bits the address contains.
byte[]	getBytes()
int	getByteSize() Get the number of bytes the address contains.
InetAddress	getInetAddress()
static Pattern	getV4Pattern() Get the regular expression matching an IPv4.
static Pattern	getV6Pattern() Get the regular expression matching an IPv6.
int	hashCode()
boolean	isIPv4() Checks if this address is IPv4.
boolean	isIPv6() Checks if this address is IPv6.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

IPV6_BYTE_SIZE

public static final int IPV6_BYTE_SIZE

See Also:

Constant Field Values

IPV4_BYTE_SIZE

public static final int IPV4_BYTE_SIZE

See Also:

Constant Field Values

IPV6_BIT_SIZE

public static final int IPV6_BIT_SIZE

See Also:

Constant Field Values

IPV4_BIT_SIZE

public static final int IPV4_BIT_SIZE

See Also:

Constant Field Values

Constructor Detail

IPAddress

public IPAddress(int address)

Creates a new IPAddress from an 32-Bit integer.

Parameters:

address - the address

IPAddress

public IPAddress(long upperBits,
                 long lowerBits)

Creates a new IPAddress from two 64-Bit integers.

Parameters:

upperBits - the 64 upper bits of the address

lowerBits - the 64 lower bits of the address

IPAddress

public IPAddress(byte[] address)

Creates a new IPAddress from an four element byte array.

Parameters:

address - the address

IPAddress

public IPAddress(String address)

Creates a new IPAddress from its string representation.

Parameters:

address - the address

IPAddress

public IPAddress(InetAddress address)

Creates a new IPAddress from an InetAddress.

Parameters:

address - the address

Method Detail

isIPv4

public boolean isIPv4()

Checks if this address is IPv4.

Returns:

if it is IPv4

getBitSize

public int getBitSize()

Get the number of bits the address contains.

Returns:

the number of bits

getByteSize

public int getByteSize()

Get the number of bytes the address contains.

Returns:

the number of bytes

isIPv6

public boolean isIPv6()

Checks if this address is IPv6.

Returns:

if it is IPv6

getInetAddress

public InetAddress getInetAddress()

Returns:

the IP address as an Inet4Address

getBytes

public byte[] getBytes()

Returns:

the IP address as an byte array.

compareTo

public int compareTo(IPAddress o)

Specified by:

compareTo in interface Comparable<IPAddress>

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object

compareLittleEndianUnsignedByte

static int compareLittleEndianUnsignedByte(byte[] a,
                                           byte[] b)

Compares to byte arrays. Each element is compared with the corresponding element in the other array. If the array sizes differ the shorter array is treated as it would contain leading zeros.

Parameters:

a - the first byte array

b - the second byte array

Returns:

the value 0 if a == b; a value less than 0 if a < b; and a value greater than 0 if a > b

getV4Pattern

public static Pattern getV4Pattern()

Get the regular expression matching an IPv4. No capturing groups are included in the pattern.

Returns:

the pattern

getV6Pattern

public static Pattern getV6Pattern()

Get the regular expression matching an IPv6. No capturing groups are included in the pattern.

Returns:

the pattern