de.alpharogroup.net

Class IPResolver

java.lang.Object

de.alpharogroup.net.IPResolver

public class IPResolver
extends Object

Utility class for getting the ip from hosts.

Version:

1.0

Author:

Asterios Raptis

Constructor Summary

Constructors

Constructor and Description
IPResolver()

Method Summary

Modifier and Type	Method and Description
static String	getIP(InetAddress inetAddress) Gets the ip address from the given InetAddress object as a String.
static byte[]	getIPAsByte(InetAddress inetAddress) Gets the ip address as a byte array.
static String	getLocalIP() Gets the local ip address as a String.
static byte[]	getLocalIPAsByte() Gets the local ip address as a byte array.
static InetAddress	getLocalIPFromServerSocket(int port, int backlog) Gets the InetAddress object from the local host from a ServerSocket object.
static String	getLocalIPFromServerSocketAsString() Gets the ip address from the local host as String.
static String	resolveIP(InetAddress inetAddress) Resolves the ip address from the given InetAddress object.

Methods inherited from class java.lang.Object

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

Constructor Detail

IPResolver

public IPResolver()

Method Detail

getIP

public static String getIP(InetAddress inetAddress)

Gets the ip address from the given InetAddress object as a String.

Parameters:

inetAddress - the inet address

Returns:

Returns the ip address from the given InetAddress as a String.

getIPAsByte

public static byte[] getIPAsByte(InetAddress inetAddress)

Gets the ip address as a byte array. Wrappes the method getAddress() from the InetAddress.

Parameters:

inetAddress - the inet address

Returns:

Returns the ip address as a byte array.

getLocalIP

public static String getLocalIP()
                         throws UnknownHostException

Gets the local ip address as a String.

Returns:

Returns the local ip address as a String or null.

Throws:

UnknownHostException - is thrown if the local host name could not be resolved into an address.

getLocalIPAsByte

public static byte[] getLocalIPAsByte()
                               throws UnknownHostException

Gets the local ip address as a byte array.

Returns:

Returns the local ip address as a byte array.

Throws:

UnknownHostException - is thrown if the local host name could not be resolved into an address.

getLocalIPFromServerSocket

public static InetAddress getLocalIPFromServerSocket(int port,
                                                     int backlog)
                                              throws UnknownHostException,
                                                     IOException

Gets the InetAddress object from the local host from a ServerSocket object.

Parameters:

port - the local TCP port

backlog - the listen backlog

Returns:

Returns the InetAddress object from the local host from a ServerSocket object.

Throws:

IOException - Signals that an I/O exception has occurred.

UnknownHostException - is thrown if the local host name could not be resolved into an address.

getLocalIPFromServerSocketAsString

public static String getLocalIPFromServerSocketAsString()
                                                 throws UnknownHostException,
                                                        IOException

Gets the ip address from the local host as String. It use a ServerSocket object to get it.

Returns:

Returns the ip from the local host from a ServerSocket object as String.

Throws:

IOException - Signals that an I/O exception has occurred.

UnknownHostException - is thrown if the local host name could not be resolved into an address.

resolveIP

public static String resolveIP(InetAddress inetAddress)

Resolves the ip address from the given InetAddress object.

Parameters:

inetAddress - the inet address

Returns:

Returns the ip address from the given InetAddress as a String.