Class BitSender

java.lang.Object
   |
   +----BitSender

public class BitSender

extends Object

NetRand Project

Software Engineering - CS536

University of Wisconsin - Milwaukee

Authors:

• Spring 1998 - Francis William Kasper

BitSender handles the communication channel between the client and the server. By using a DatagramSocket, the BitSender packages one byte of random bits into a DatagramPacket and sends it to the server. The server contains the BitPool class which accepts the incoming packets sent by all the clients.

bitBuffer

internal buffer which holds bytes waiting to be sent

destHost

structure which holds the address to send packets to

destPort

the port to send packets to

sender

socket which sends the datagram packets to server

BitSender()

constructor for BitSender Class - uses BitSenderPrefs for host and port info

BitSender(String, int)

constructor for BitSender Class - allows the caller to specify the destination host and port instead of using the BitSenderPrefs object.

finalize()

closes the DatagramSocket when the BitSender object is disposed of.

SendBuffer()

sends the contents of the bitBuffer one byte at a time by placing each byte in a DatagramPacket and sending it to the destination host

SendByte(byte)

adds a byte to the bitBuffer to hold before sending; SendBuffer() is called to send the bytes to the destination server

SendBytes(byte[])

adds a string of bytes to the bitBuffer to hold before sending; SendBuffer() is called to send the bits to the destination server

 private DatagramSocket sender

socket which sends the datagram packets to server

 private ByteVector bitBuffer

internal buffer which holds bytes waiting to be sent

 private InetAddress destHost

structure which holds the address to send packets to

 private int destPort

the port to send packets to

 public BitSender(String host,
                  int port) throws UnknownHostException, SocketException

constructor for BitSender Class - allows the caller to specify the destination host and port instead of using the BitSenderPrefs object.

Parameters:

host - - String containing the IP address of destination

port - - the destination port

Throws: UnknownHostException

if an unrecoginized hostname was given

Throws: SocketException

if failure to open DatagramSocket

 public BitSender() throws UnknownHostException, SocketException

constructor for BitSender Class - uses BitSenderPrefs for host and port info

Throws: UnknowHostExeption

if an unrecoginized hostname was given

Throws: SocketException

if failure to open DatagramSocket

 public void SendBytes(byte newBytes[])

adds a string of bytes to the bitBuffer to hold before sending; SendBuffer() is called to send the bits to the destination server

Parameters:

newBytes - - array of bytes containing the new bits to add to buffer

 public void SendByte(byte newByte)

adds a byte to the bitBuffer to hold before sending; SendBuffer() is called to send the bytes to the destination server

Parameters:

newByte - - the byte to add to the bitBuffer

 private void SendBuffer()

sends the contents of the bitBuffer one byte at a time by placing each byte in a DatagramPacket and sending it to the destination host

 public void finalize() throws Throwable

closes the DatagramSocket when the BitSender object is disposed of.

Throws: Throwable

is thrown

Overrides:

finalize in class Object