network
Class Neighbor

java.lang.Object
  network.Neighbor

All Implemented Interfaces:

java.lang.Runnable

public class Neighbor

extends java.lang.Object

implements java.lang.Runnable

This class sends and receives packets from a neighbor.

Author:

hoele, cooperse

Constructor Summary

Neighbor(java.net.Socket socket, Network network, boolean transferKey)
Creates a new Neighbor.

Method Summary

void	connect(java.net.Socket socket, boolean sendKey) Connects to a neighbor via passed socket
void	finalize() Called by the garbage collector.
java.lang.String	getAddress() IP Address.
int	getLocalPort()
java.lang.String	getName() Return the name of the neighbor.
boolean	isConnected() Returns whether or not there is a connection open to this Neighbor.
boolean	isRemoved() Indicates whether or not this Neighbor has started yet or has been stopped.
void	run() While the thread is running, deal with the packets coming in from the associated neighbor.
void	sendPacket(Packet packet) Sends the given packet through socket.
void	start() Start the Neighbor Thread.
void	stop() Stop the Neighbor Thread.
java.lang.String	toString()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Neighbor

public Neighbor(java.net.Socket socket,
                Network network,
                boolean transferKey)
         throws java.security.InvalidKeyException,
                java.security.NoSuchAlgorithmException,
                javax.crypto.NoSuchPaddingException,
                java.lang.ClassNotFoundException,
                java.io.IOException

Creates a new Neighbor.

Parameters:

socket - The Socket used to read from the neighbor and write to the neighbor.

network - The Network class that handles this Neighbor.

transferKey - Whether the encryption key should be sent

Throws:

java.lang.ClassNotFoundException

java.io.IOException

javax.crypto.NoSuchPaddingException

java.security.NoSuchAlgorithmException

java.security.InvalidKeyException

Method Detail

getName

public java.lang.String getName()

Return the name of the neighbor.

Returns:

The name of the neighbor.

toString

public java.lang.String toString()

sendPacket

public void sendPacket(Packet packet)
                throws java.security.NoSuchAlgorithmException,
                       javax.crypto.NoSuchPaddingException,
                       java.security.InvalidKeyException,
                       javax.crypto.IllegalBlockSizeException,
                       java.io.IOException

Sends the given packet through socket.

Parameters:

packet - The packet to be sent.

Throws:

javax.crypto.NoSuchPaddingException

java.security.NoSuchAlgorithmException

java.security.InvalidKeyException

java.io.IOException

javax.crypto.IllegalBlockSizeException

connect

public void connect(java.net.Socket socket,
                    boolean sendKey)
             throws java.lang.ClassNotFoundException,
                    java.io.IOException,
                    java.security.NoSuchAlgorithmException,
                    javax.crypto.NoSuchPaddingException,
                    java.security.InvalidKeyException

Connects to a neighbor via passed socket

Parameters:

socket - The neighbor's Socket object

sendKey - Whether the encryption key should be sent

Throws:

java.lang.ClassNotFoundException

java.io.IOException

javax.crypto.NoSuchPaddingException

java.security.NoSuchAlgorithmException

java.security.InvalidKeyException

start

public void start()

Start the Neighbor Thread.

stop

public void stop()

Stop the Neighbor Thread.

run

public void run()

While the thread is running, deal with the packets coming in from the associated neighbor.

Specified by:

run in interface java.lang.Runnable

getAddress

public java.lang.String getAddress()

IP Address.

Returns:

The IP address of the Neighbor.

isConnected

public boolean isConnected()

Returns whether or not there is a connection open to this Neighbor.

Returns:

True if connected, false otherwise.

getLocalPort

public int getLocalPort()

isRemoved

public boolean isRemoved()

Indicates whether or not this Neighbor has started yet or has been stopped.

Returns:

True if the neighbor is inactive. False otherwise.

finalize

public void finalize()
              throws java.lang.Throwable

Called by the garbage collector. Just calls stop().

Throws:

java.lang.Throwable