org.apache.commons.net.discard
Class DiscardUDPClient

java.lang.Object
  org.apache.commons.net.DatagramSocketClient
      org.apache.commons.net.discard.DiscardUDPClient

Direct Known Subclasses:

EchoUDPClient

public class DiscardUDPClient
extends DatagramSocketClient

The DiscardUDPClient class is a UDP implementation of a client for the Discard protocol described in RFC 863. To use the class, just open a local UDP port with open and call send to send datagrams to the server After you're done sending discard data, call close() to clean up properly.

See Also:

DiscardTCPClient

Field Summary

static int

DEFAULT_PORT The default discard port.

Fields inherited from class org.apache.commons.net.DatagramSocketClient

_isOpen_, _socket_, _socketFactory_, _timeout_

Constructor Summary

DiscardUDPClient()

Method Summary

void	send(byte[] data, InetAddress host) Same as send(data, data.length, host.
void	send(byte[] data, int length, InetAddress host) Same as send(data, length, host.
void	send(byte[] data, int length, InetAddress host, int port) Sends the specified data to the specified server at the specified port.

Methods inherited from class org.apache.commons.net.DatagramSocketClient

close, getDefaultTimeout, getLocalAddress, getLocalPort, getSoTimeout, isOpen, open, open, open, setDatagramSocketFactory, setDefaultTimeout, setSoTimeout

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_PORT

public static final int DEFAULT_PORT

The default discard port. It is set to 9 according to RFC 863.

See Also:

Constant Field Values

Constructor Detail

DiscardUDPClient

public DiscardUDPClient()

Method Detail

send

public void send(byte[] data,
                 int length,
                 InetAddress host,
                 int port)
          throws IOException

Sends the specified data to the specified server at the specified port.

Parameters:

data - The discard data to send.

length - The length of the data to send. Should be less than or equal to the length of the data byte array.

host - The address of the server.

port - The service port.

Throws:

IOException - If an error occurs during the datagram send operation.

send

public void send(byte[] data,
                 int length,
                 InetAddress host)
          throws IOException

Same as send(data, length, host. DiscardUDPClient.DEFAULT_PORT).

Throws:

IOException

send

public void send(byte[] data,
                 InetAddress host)
          throws IOException

Same as send(data, data.length, host. DiscardUDPClient.DEFAULT_PORT).

Throws:

IOException