org.onlab.packet

Class Ip4Prefix

java.lang.Object

org.onlab.packet.IpPrefix

org.onlab.packet.Ip4Prefix

public final class Ip4Prefix
extends IpPrefix

The class representing an IPv4 network address. This class is immutable.

Field Summary

Fields

Modifier and Type	Field and Description
static int	MAX_MASK_LENGTH
static IpAddress.Version	VERSION

Fields inherited from class org.onlab.packet.IpPrefix

IPV4_LINK_LOCAL_PREFIX, IPV4_MULTICAST_PREFIX, IPV6_LINK_LOCAL_PREFIX, IPV6_MULTICAST_PREFIX, MAX_INET_MASK_LENGTH, MAX_INET6_MASK_LENGTH

Method Summary

Modifier and Type	Method and Description
Ip4Address	address() Returns the IPv4 address value of the prefix.
static Ip4Prefix	valueOf(byte[] address, int prefixLength) Converts a byte array and a prefix length into an IPv4 prefix.
static Ip4Prefix	valueOf(int address, int prefixLength) Converts an integer and a prefix length into an IPv4 prefix.
static Ip4Prefix	valueOf(Ip4Address address, int prefixLength) Converts an IPv4 address and a prefix length into an IPv4 prefix.
static Ip4Prefix	valueOf(String address) Converts a CIDR (slash) notation string (e.g., "10.1.0.0/16") into an IPv4 prefix.

Methods inherited from class org.onlab.packet.IpPrefix

contains, contains, equals, getIp4Prefix, getIp6Prefix, hashCode, isIp4, isIp6, isMulticast, prefixLength, toString, valueOf, valueOf, version

Methods inherited from class java.lang.Object

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

Field Detail

VERSION

public static final IpAddress.Version VERSION

MAX_MASK_LENGTH

public static final int MAX_MASK_LENGTH

See Also:

Constant Field Values

Method Detail

address

public Ip4Address address()

Returns the IPv4 address value of the prefix.

Overrides:

address in class IpPrefix

Returns:

the IPv4 address value of the prefix

valueOf

public static Ip4Prefix valueOf(int address,
                                int prefixLength)

Converts an integer and a prefix length into an IPv4 prefix.

Parameters:

address - an integer representing the IPv4 address

prefixLength - the prefix length

Returns:

an IPv4 prefix

Throws:

IllegalArgumentException - if the prefix length value is invalid

valueOf

public static Ip4Prefix valueOf(byte[] address,
                                int prefixLength)

Converts a byte array and a prefix length into an IPv4 prefix.

Parameters:

address - the IPv4 address value stored in network byte order

prefixLength - the prefix length

Returns:

an IPv4 prefix

Throws:

IllegalArgumentException - if the prefix length value is invalid

valueOf

public static Ip4Prefix valueOf(Ip4Address address,
                                int prefixLength)

Converts an IPv4 address and a prefix length into an IPv4 prefix.

Parameters:

address - the IPv4 address

prefixLength - the prefix length

Returns:

an IPv4 prefix

Throws:

IllegalArgumentException - if the prefix length value is invalid

valueOf

public static Ip4Prefix valueOf(String address)

Converts a CIDR (slash) notation string (e.g., "10.1.0.0/16") into an IPv4 prefix.

Parameters:

address - an IP prefix in string form (e.g., "10.1.0.0/16")

Returns:

an IPv4 prefix

Throws:

IllegalArgumentException - if the arguments are invalid