com.echomine.util
Class IPUtil

java.lang.Object
  com.echomine.util.IPUtil

public class IPUtil
extends java.lang.Object

Contains some utility functions that is IP and host related.

Constructor Summary

IPUtil()

Method Summary

static java.lang.String	convertIP(long ip) Converts a long representation of an IP into a string format "xx.xx.xx.xx"
static int	deserializeIP(byte[] inbuf, int offset, java.lang.StringBuffer outbuf) Deserializes the IP from a given set of bytes.
static boolean	isHostIPPrivate(java.lang.String ip) Checks whether an IP is private or not.
static int	serializeIP(java.lang.String ip, byte[] outbuf, int offset) Serializes the IP from a given string.

Methods inherited from class java.lang.Object

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

Constructor Detail

IPUtil

public IPUtil()

Method Detail

isHostIPPrivate

public static boolean isHostIPPrivate(java.lang.String ip)

Checks whether an IP is private or not. This will check by the set standards of IANA who assigns blocks of IPs that are considered private use.

convertIP

public static java.lang.String convertIP(long ip)

Converts a long representation of an IP into a string format "xx.xx.xx.xx"

serializeIP

public static int serializeIP(java.lang.String ip,
                              byte[] outbuf,
                              int offset)

Serializes the IP from a given string. This is only IPv4 capable.

Parameters:

ip - The IP string in the "xx.xx.xx.xx" format

offset - the starting offset where the bytes will write to

outbuf - the results will be appened to this buffer

Returns:

the current offset after serializing

deserializeIP

public static int deserializeIP(byte[] inbuf,
                                int offset,
                                java.lang.StringBuffer outbuf)

Deserializes the IP from a given set of bytes. This is only IPv4 capable.

Parameters:

inbuf - the buffer that contains the IP in bytes

offset - the starting offset where deserialization occurs

outbuf - the results will be appened to this buffer

Returns:

the current offset after deserializing