usr.router

Class MinimalDatagramDevice

java.lang.Object

usr.router.MinimalDatagramDevice

All Implemented Interfaces:

DatagramDevice

public abstract class MinimalDatagramDevice
extends java.lang.Object
implements DatagramDevice

A Minimal version of datagram device -- given an address and a fabric device it routes packets either to the fabric device or receives them as appropriate according to the Listener device -- to instantiate implement outQueueHandler

Constructor Summary

Constructors

Constructor and Description
MinimalDatagramDevice(java.lang.String name) Create a very basic datagram device -- this is not properly instatiated until address and listener set
MinimalDatagramDevice(java.lang.String name, Address addr, FabricDevice fd, NetIFListener l) Given an address and a netListener and a fabric create a minimal datagram device
MinimalDatagramDevice(java.lang.String name, Address addr, NetIFListener l) Given an address and a netListener create a minimal datagram device with a very basic datagram device

Method Summary

Methods

Modifier and Type	Method and Description
boolean	enqueueDatagram(Datagram dg) forward a datagram (does not set src address)
Address	getAddress() Get the Address for this connection.
FabricDevice	getFabricDevice() Get the FabricDevice associated with Net Device
java.lang.String	getName() Get the name of this Net Device
NetIFListener	getNetIFListener() Get the Listener of a NetIF.
boolean	ourAddress(Address addr) is this address ours
abstract boolean	outQueueHandler(Datagram dg, DatagramDevice dd) Send the datagram onwards to the world
boolean	sendDatagram(Datagram dg) Send a Datagram originating at this host (sets src address) and
void	setAddress(Address addr) Set the Address for this connection.
void	setName(java.lang.String name) Set the name of this Net Device
void	setNetIFListener(NetIFListener l) Set the Listener of NetIF.
void	start() Initialise must be called if fabric device not set up in constructor
void	stop()

Methods inherited from class java.lang.Object

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

Constructor Detail

MinimalDatagramDevice

public MinimalDatagramDevice(java.lang.String name)

Create a very basic datagram device -- this is not properly instatiated until address and listener set

MinimalDatagramDevice

public MinimalDatagramDevice(java.lang.String name,
                     Address addr,
                     NetIFListener l)

Given an address and a netListener create a minimal datagram device with a very basic datagram device

MinimalDatagramDevice

public MinimalDatagramDevice(java.lang.String name,
                     Address addr,
                     FabricDevice fd,
                     NetIFListener l)

Given an address and a netListener and a fabric create a minimal datagram device

Method Detail

start

public void start()

Initialise must be called if fabric device not set up in constructor

getName

public java.lang.String getName()

Get the name of this Net Device

Specified by:

getName in interface DatagramDevice

ourAddress

public boolean ourAddress(Address addr)

is this address ours

setName

public void setName(java.lang.String name)

Set the name of this Net Device

Specified by:

setName in interface DatagramDevice

getAddress

public Address getAddress()

Get the Address for this connection.

Specified by:

getAddress in interface DatagramDevice

getFabricDevice

public FabricDevice getFabricDevice()

Get the FabricDevice associated with Net Device

Specified by:

getFabricDevice in interface DatagramDevice

setAddress

public void setAddress(Address addr)

Set the Address for this connection.

Specified by:

setAddress in interface DatagramDevice

sendDatagram

public boolean sendDatagram(Datagram dg)
                     throws java.net.NoRouteToHostException

Send a Datagram originating at this host (sets src address) and

Specified by:

sendDatagram in interface DatagramDevice

Throws:

java.net.NoRouteToHostException

enqueueDatagram

public boolean enqueueDatagram(Datagram dg)
                        throws java.net.NoRouteToHostException

forward a datagram (does not set src address)

Specified by:

enqueueDatagram in interface DatagramDevice

Throws:

java.net.NoRouteToHostException

stop

public void stop()

outQueueHandler

public abstract boolean outQueueHandler(Datagram dg,
                      DatagramDevice dd)

Send the datagram onwards to the world

Specified by:

outQueueHandler in interface DatagramDevice

getNetIFListener

public NetIFListener getNetIFListener()

Get the Listener of a NetIF.

Specified by:

getNetIFListener in interface DatagramDevice

setNetIFListener

public void setNetIFListener(NetIFListener l)

Set the Listener of NetIF.

Specified by:

setNetIFListener in interface DatagramDevice