org.zeromq.jzmq

Class UdpSocket

java.lang.Object

org.zeromq.jzmq.UdpSocket

public class UdpSocket
extends Object

Socket for sending UDP messages.

This class was adapted from ZreUdp in the Jyre project.

Constructor Summary

Constructors

Constructor and Description
UdpSocket(int port) Constructor.

Method Summary

Modifier and Type	Method and Description
void	close() Close the socket.
InetAddress	getAddress() Return our own SocketAddress.
DatagramChannel	getChannel() Return the UDP channel.
String	getFrom() Return the IP address of peer that sent last message.
String	getHost() Return our own IP address as printable string.
int	getPort() Return the UDP socket port.
SocketAddress	getSender() Return the SocketAddress of the peer that sent last message.
DatagramSocket	getSocket() Return the UDP socket.
int	receive(ByteBuffer buffer) Receive a message from UDP broadcast.
void	send(ByteBuffer buffer) Send a message using UDP broadcast.
void	send(ByteBuffer buffer, String address) Send a message using UDP.

Methods inherited from class java.lang.Object

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

Constructor Detail

UdpSocket

public UdpSocket(int port)
          throws IOException

Constructor.

Parameters:

port - The local port to bind to

Throws:

IOException - If an I/O error occurs opening the socket connection

Method Detail

close

public void close()

Close the socket.

getChannel

public DatagramChannel getChannel()

Return the UDP channel.

Returns:

The UDP channel

getSocket

public DatagramSocket getSocket()

Return the UDP socket.

Returns:

The UDP socket

getAddress

public InetAddress getAddress()

Return our own SocketAddress.

Returns:

Our own address

getHost

public String getHost()

Return our own IP address as printable string.

Returns:

Our own IP address

getPort

public int getPort()

Return the UDP socket port.

Returns:

The UDP socket port

getSender

public SocketAddress getSender()

Return the SocketAddress of the peer that sent last message.

Returns:

The address of last peer

getFrom

public String getFrom()

Return the IP address of peer that sent last message.

Returns:

The IP address of last peer

send

public void send(ByteBuffer buffer)
          throws IOException

Send a message using UDP broadcast.

Parameters:

buffer - The message as a byte buffer

Throws:

IOException - If an error occurs sending the message

send

public void send(ByteBuffer buffer,
                 String address)
          throws IOException

Send a message using UDP.

Parameters:

buffer - The message as a byte buffer

address - The host name or address of the server

Throws:

IOException - If an error occurs sending the message

receive

public int receive(ByteBuffer buffer)
            throws IOException

Receive a message from UDP broadcast.

Parameters:

buffer - The buffer to place received data into

Returns:

The size of received message, or -1

Throws:

IOException - If an error occurs receiving the message