SK.gnome.dwarf.tcpip
Class UDPHandler

java.lang.Object
  SK.gnome.dwarf.GenericService
      SK.gnome.dwarf.thread.ThreadService
          SK.gnome.dwarf.thread.Handler
              SK.gnome.dwarf.tcpip.UDPHandler

All Implemented Interfaces:

java.lang.Runnable, Service, Stoppable

Direct Known Subclasses:

SyslogHandler, UDPDaytimeHandler, UDPDiscardHandler, UDPEchoHandler, UDPChargenHandler, UDPTimeHandler

public abstract class UDPHandler

extends Handler

Abstract service for handling client datagrams.

This class processes the client datagrams. It works in tight cooperation with the TCPIPServer and UDPListener objects.

In order to develop a real handler the abstract handle(DatagramPacket) method must be overriden in the subclasses.

Field Summary

Fields inherited from class SK.gnome.dwarf.thread.ThreadService

daemon, thread

Fields inherited from class SK.gnome.dwarf.GenericService

initParameters, parent

Fields inherited from interface SK.gnome.dwarf.Service

INITIALIZED, LOG_DEBUG, LOG_ERROR, LOG_FATAL, LOG_INFO, LOG_TRACE, LOG_WARN, LOG_XFER, SHUTDOWN, STARTED, STOPPED

Constructor Summary

UDPHandler(java.lang.String name)
Creates a new UDPHandler.

Method Summary

protected abstract void	handle(java.net.DatagramPacket packet) Handles the datagram packet.
protected void	handle(java.lang.Object obj) Performs the handling operation.

Methods inherited from class SK.gnome.dwarf.thread.Handler

enableThread, init, loop, start

Methods inherited from class SK.gnome.dwarf.thread.ThreadService

finish, run, setDaemon, shutdown, stop

Methods inherited from class SK.gnome.dwarf.GenericService

getAuthenticator, getAuthFacility, getFullName, getInitParameter, getInitParameterNames, getLogFacility, getLogger, getName, getParameters, getPrincipal, getShutdownTimeout, getState, log, log, login, logout, setAuthFacility, setInitParameters, setLogFacility, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

UDPHandler

public UDPHandler(java.lang.String name)

Creates a new UDPHandler.

Method Detail

handle

protected void handle(java.lang.Object obj)

Performs the handling operation.

This method simply casts the obj argument to the java.net.DatagramPacket type and invokes the protected handle(DatagramPacket) method.

Specified by:

handle in class Handler

handle

protected abstract void handle(java.net.DatagramPacket packet)

Handles the datagram packet.

An abstract method for processing the client datagrams. Must be overriden in order to implement a real handler. It is called directly from the handle(Object) method.