com.alibaba.druid.support.http.util

类 IPRange

java.lang.Object

com.alibaba.druid.support.http.util.IPRange

public class IPRange
extends Object

This class represents an IP Range, which are represented by an IP address and and a subnet mask. The standards describing modern routing protocols often refer to the extended-network-prefix-length rather than the subnet mask. The prefix length is equal to the number of contiguous one-bits in the traditional subnet mask. This means that specifying the network address 130.5.5.25 with a subnet mask of 255.255.255.0 can also be expressed as 130.5.5.25/24. The prefix-length notation is more compact and easier to understand than writing out the mask in its traditional dotted-decimal format.

版本:

1.0

作者:

Marcel Dullaart

另请参阅:

IPAddress

字段概要

字段

限定符和类型	字段和说明
private int	extendedNetworkPrefix extended network prefix
private IPAddress	ipAddress IP address
private IPAddress	ipSubnetMask IP subnet mask

构造器概要

构造器

构造器和说明
IPRange(String range)

方法概要

限定符和类型	方法和说明
private IPAddress	computeMaskFromNetworkPrefix(int prefix) Convert a extended network prefix integer into an IP number.
private int	computeNetworkPrefixFromMask(IPAddress mask) Compute the extended network prefix from the IP subnet mask.
int	getExtendedNetworkPrefix() Return the extended extended network prefix.
IPAddress	getIPAddress() Return the encapsulated IP address.
IPAddress	getIPSubnetMask() Return the encapsulated subnet mask
boolean	isIPAddressInRange(IPAddress address) Check if the specified IP address is in the encapsulated range.
(专用程序包) void	parseRange(String range) Parse the IP range string representation.
static String	toDecimalString(String inBinaryIpAddress)
String	toString() Convert the IP Range into a string representation.

从类继承的方法 java.lang.Object

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

字段详细资料

ipAddress

private IPAddress ipAddress

IP address

ipSubnetMask

private IPAddress ipSubnetMask

IP subnet mask

extendedNetworkPrefix

private int extendedNetworkPrefix

extended network prefix

构造器详细资料

IPRange

public IPRange(String range)

方法详细资料

getIPAddress

public final IPAddress getIPAddress()

Return the encapsulated IP address.

返回:

The IP address.

getIPSubnetMask

public final IPAddress getIPSubnetMask()

Return the encapsulated subnet mask

返回:

The IP range's subnet mask.

getExtendedNetworkPrefix

public final int getExtendedNetworkPrefix()

Return the extended extended network prefix.

返回:

Return the extended network prefix.

toString

public String toString()

Convert the IP Range into a string representation.

覆盖:

toString 在类中 Object

返回:

Return the string representation of the IP Address following the common format xxx.xxx.xxx.xxx/xx (IP address/extended network prefixs).

parseRange

final void parseRange(String range)

Parse the IP range string representation.

参数:

range - String representation of the IP range.

抛出:

IllegalArgumentException - Throws this exception if the specified range is not a valid IP network range.

computeNetworkPrefixFromMask

private int computeNetworkPrefixFromMask(IPAddress mask)

Compute the extended network prefix from the IP subnet mask.

参数:

mask - Reference to the subnet mask IP number.

返回:

Return the extended network prefix. Return -1 if the specified mask cannot be converted into a extended prefix network.

toDecimalString

public static String toDecimalString(String inBinaryIpAddress)

computeMaskFromNetworkPrefix

private IPAddress computeMaskFromNetworkPrefix(int prefix)

Convert a extended network prefix integer into an IP number.

参数:

prefix - The network prefix number.

返回:

Return the IP number corresponding to the extended network prefix.

isIPAddressInRange

public boolean isIPAddressInRange(IPAddress address)

Check if the specified IP address is in the encapsulated range.

参数:

address - The IP address to be tested.

返回:

Return true if the specified IP address is in the encapsulated IP range, otherwise return false.