appilog.common.utils

Class IPUtil

java.lang.Object

appilog.common.utils.IPUtil

public class IPUtil
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
IPUtil()

Method Summary

Methods

Modifier and Type	Method and Description
static long	breakoutSubnetAddress(long ip, int mask) return the network address
static java.lang.String	breakoutSubnetAddress(java.lang.String ip, java.lang.String subnetMask) return the network address
static long[]	calculateNodesPerNetwork(java.lang.String netAddress, java.lang.String subnetMask) return the 1st ip & the last ip of this network
static java.lang.String	formatLongToIp(long ip) format a 'aaa.bbb.ccc.ddd' representation of an ip given by a 'long' representation
static long	parseSubnetToLong(java.lang.String ip) return a 'long' representation of a subnet ip

Methods inherited from class java.lang.Object

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

Constructor Detail

IPUtil

public IPUtil()

Method Detail

parseSubnetToLong

public static long parseSubnetToLong(java.lang.String ip)
                              throws java.lang.Exception

return a 'long' representation of a subnet ip

Parameters:

ip - the ip

Returns:

a 'long' representation of a subnet ip

Throws:

java.lang.Exception

formatLongToIp

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

format a 'aaa.bbb.ccc.ddd' representation of an ip given by a 'long' representation

Parameters:

ip - the ip

Returns:

a 'aaa.bbb.ccc.ddd' representation of an ip given by a 'long' representation

breakoutSubnetAddress

public static java.lang.String breakoutSubnetAddress(java.lang.String ip,
                                     java.lang.String subnetMask)
                                              throws java.lang.Exception

return the network address

Parameters:

ip - the ip

subnetMask - the mask

Returns:

the network address

Throws:

java.lang.Exception

calculateNodesPerNetwork

public static long[] calculateNodesPerNetwork(java.lang.String netAddress,
                              java.lang.String subnetMask)
                                       throws java.lang.Exception

return the 1st ip & the last ip of this network

Parameters:

netAddress - network address

subnetMask - network mask

Returns:

return a long array, long[0] is the 1st ip of the network, long[1] is the last ip of the network.

Throws:

java.lang.Exception

breakoutSubnetAddress

public static long breakoutSubnetAddress(long ip,
                         int mask)
                                  throws java.lang.Exception

return the network address

Parameters:

ip - the ip

mask - the mask

Returns:

the network address

Throws:

java.lang.Exception