org.apache.mina.example.udp.perf

Class UdpServer

java.lang.Object

org.apache.mina.core.service.IoHandlerAdapter

org.apache.mina.example.udp.perf.UdpServer

All Implemented Interfaces:

IoHandler

public class UdpServer
extends IoHandlerAdapter

An UDP server used for performance tests. It does nothing fancy, except receiving the messages, and counting the number of received messages.

Author:

Apache MINA Project

Field Summary

Fields

Modifier and Type	Field and Description
static int	MAX_RECEIVED The number of message to receive
static int	PORT The listening port (check that it's not already in use)

Constructor Summary

Constructors

Constructor and Description
UdpServer() Create the UDP server

Method Summary

Modifier and Type	Method and Description
void	exceptionCaught(IoSession session, Throwable cause) Invoked when any exception is thrown by user IoHandler implementation or by MINA.
static void	main(String[] args) The entry point.
void	messageReceived(IoSession session, Object message) Invoked when a message is received.
void	sessionClosed(IoSession session) Invoked when a connection is closed.
void	sessionCreated(IoSession session) Invoked from an I/O processor thread when a new connection has been created.
void	sessionIdle(IoSession session, IdleStatus status) Invoked with the related IdleStatus when a connection becomes idle.
void	sessionOpened(IoSession session) Invoked when a connection has been opened.

Methods inherited from class org.apache.mina.core.service.IoHandlerAdapter

inputClosed, messageSent

Methods inherited from class java.lang.Object

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

Field Detail

PORT

public static final int PORT

The listening port (check that it's not already in use)

See Also:

Constant Field Values

MAX_RECEIVED

public static final int MAX_RECEIVED

The number of message to receive

See Also:

Constant Field Values

Constructor Detail

UdpServer

public UdpServer()
          throws IOException

Create the UDP server

Throws:

IOException - If something went wrong

Method Detail

exceptionCaught

public void exceptionCaught(IoSession session,
                            Throwable cause)
                     throws Exception

Invoked when any exception is thrown by user IoHandler implementation or by MINA. If cause is an instance of IOException, MINA will close the connection automatically.

Specified by:

exceptionCaught in interface IoHandler

Overrides:

exceptionCaught in class IoHandlerAdapter

Parameters:

session - The session for which we have got an exception

cause - The exception that has been caught

Throws:

Exception - If we get an exception while processing the caught exception

messageReceived

public void messageReceived(IoSession session,
                            Object message)
                     throws Exception

Invoked when a message is received.

Specified by:

messageReceived in interface IoHandler

Overrides:

messageReceived in class IoHandlerAdapter

Parameters:

session - The session that is receiving a message

message - The received message

Throws:

Exception - If we get an exception while processing the received message

sessionClosed

public void sessionClosed(IoSession session)
                   throws Exception

Invoked when a connection is closed.

Specified by:

sessionClosed in interface IoHandler

Overrides:

sessionClosed in class IoHandlerAdapter

Parameters:

session - The session being closed

Throws:

Exception - If we get an exception while processing the close event

sessionCreated

public void sessionCreated(IoSession session)
                    throws Exception

Invoked from an I/O processor thread when a new connection has been created. Because this method is supposed to be called from the same thread that handles I/O of multiple sessions, please implement this method to perform tasks that consumes minimal amount of time such as socket parameter and user-defined session attribute initialization.

Specified by:

sessionCreated in interface IoHandler

Overrides:

sessionCreated in class IoHandlerAdapter

Parameters:

session - The session being created

Throws:

Exception - If we get an exception while processing the create event

sessionIdle

public void sessionIdle(IoSession session,
                        IdleStatus status)
                 throws Exception

Invoked with the related IdleStatus when a connection becomes idle. This method is not invoked if the transport type is UDP; it's a known bug, and will be fixed in 2.0.

Specified by:

sessionIdle in interface IoHandler

Overrides:

sessionIdle in class IoHandlerAdapter

Parameters:

session - The idling session

status - The session's status

Throws:

Exception - If we get an exception while processing the idle event

sessionOpened

public void sessionOpened(IoSession session)
                   throws Exception

Invoked when a connection has been opened. This method is invoked after IoHandler.sessionCreated(IoSession). The biggest difference from IoHandler.sessionCreated(IoSession) is that it's invoked from other thread than an I/O processor thread once thread model is configured properly.

Specified by:

sessionOpened in interface IoHandler

Overrides:

sessionOpened in class IoHandlerAdapter

Parameters:

session - The session being opened

Throws:

Exception - If we get an exception while processing the open event

main

public static void main(String[] args)
                 throws IOException

The entry point.

Parameters:

args - The arguments

Throws:

IOException - If something went wrong