io.aeron.driver.media

Class NetworkUtil

java.lang.Object

io.aeron.driver.media.NetworkUtil

public class NetworkUtil
extends java.lang.Object

Collection of network specific utility functions

Constructor Summary

Constructors

Constructor and Description
NetworkUtil()

Method Summary

Modifier and Type	Method and Description
static java.nio.ByteBuffer	allocateDirectAlignedAndPadded(int capacity, int alignment) Allocate a direct ByteBuffer that is padded at the end with at least alignment bytes.
static java.net.NetworkInterface[]	filterBySubnet(java.net.InetAddress address, int subnetPrefix) Search for a list of network interfaces that match the specified address and subnet prefix.
static java.net.InetAddress	findAddressOnInterface(java.net.NetworkInterface networkInterface, java.net.InetAddress address, int subnetPrefix)
static java.net.ProtocolFamily	getProtocolFamily(java.net.InetAddress address)

Methods inherited from class java.lang.Object

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

Constructor Detail

NetworkUtil

public NetworkUtil()

Method Detail

filterBySubnet

public static java.net.NetworkInterface[] filterBySubnet(java.net.InetAddress address,
                                                         int subnetPrefix)
                                                  throws java.net.SocketException

Search for a list of network interfaces that match the specified address and subnet prefix. The results will be ordered by the length of the subnet prefix (InterfaceAddress.getNetworkPrefixLength()). If no results match, then the collection will be empty.

Parameters:

address - to search for on the NetworkInterfaces.

subnetPrefix - to limit the search.

Returns:

NetworkInterfaces that match the supplied criteria, ordered by the length of the subnet prefix. Empty if none match.

Throws:

java.net.SocketException - if an error occurs

findAddressOnInterface

public static java.net.InetAddress findAddressOnInterface(java.net.NetworkInterface networkInterface,
                                                          java.net.InetAddress address,
                                                          int subnetPrefix)

getProtocolFamily

public static java.net.ProtocolFamily getProtocolFamily(java.net.InetAddress address)

allocateDirectAlignedAndPadded

public static java.nio.ByteBuffer allocateDirectAlignedAndPadded(int capacity,
                                                                 int alignment)

Allocate a direct ByteBuffer that is padded at the end with at least alignment bytes.

Parameters:

capacity - for the buffer.

alignment - for the buffer.

Returns:

the direct ByteBuffer.