verinec.adaptation.snmp.tftpserver
Class Upload

java.lang.Object
  verinec.adaptation.snmp.tftpserver.Upload

public class Upload
extends Object

Class responsible for uploading a data to our TFTP server directory. We are the server, so this handles receiving a file from a client.

Most of the source was taken from www.it.rit.edu/~netsyslb/vksf522/class_examples/Day09_TFTPServer/Upload.pdf
I removed the gui part.

Version:

1.0

Author:

christoph.ehret at unifr.ch

Nested Class Summary

private class

Upload.Listener Private class Listener that listens a socket todo: what is the difference to TFTPServer and Download Listener?

Field Summary

private InetAddress	clientAddress
private int	clientPort
private DatagramPacket	dgram
private static int	ENDINGUL
private DataOutputStream	fostream
private String	fp
private DatagramPacket	lastPacket
private String	lastPacketDesc
private Upload.Listener	listener
private String	localDirName
private String	localName
private Logger	logger
private int	nextBlockNo
private DatagramSocket	socket
private int	state state of the upload.
private TFTPPacket	tftp
private Timer	timer
private int	timerCount
(package private) ActionListener	timerExpired
private static int	UPLOADING

Constructor Summary

Upload(DatagramPacket pkt, TFTPPacket tftp, String localDirName)
Creates an Upload instance

Method Summary

private void	doDATA(TFTPPacket pkt)
private void	doERROR(TFTPPacket pkt)
void	doWRQ() Processes a Write Request at the beginning of an upload
private void	endUpload()
private void	processPacket(DatagramPacket pkt)
private void	sendACK()
private void	sendError(int code)
private void	sendPacket(DatagramPacket pkt)

Methods inherited from class java.lang.Object

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

Field Detail

fp

private String fp

logger

private Logger logger

state

private int state

state of the upload.

UPLOADING

private static final int UPLOADING

See Also:

Constant Field Values

ENDINGUL

private static final int ENDINGUL

See Also:

Constant Field Values

dgram

private DatagramPacket dgram

tftp

private TFTPPacket tftp

localDirName

private String localDirName

localName

private String localName

clientAddress

private InetAddress clientAddress

clientPort

private int clientPort

fostream

private DataOutputStream fostream

nextBlockNo

private int nextBlockNo

timer

private Timer timer

timerCount

private int timerCount

lastPacket

private DatagramPacket lastPacket

lastPacketDesc

private String lastPacketDesc

socket

private DatagramSocket socket

listener

private Upload.Listener listener

timerExpired

ActionListener timerExpired

Constructor Detail

Upload

public Upload(DatagramPacket pkt,
              TFTPPacket tftp,
              String localDirName)

Creates an Upload instance

Parameters:

pkt - Unparsed datagram packet

tftp - TFTP packet

localDirName - Name of the upload directory

See Also:

TFTPPacket

Method Detail

sendACK

private void sendACK()

sendError

private void sendError(int code)

sendPacket

private void sendPacket(DatagramPacket pkt)
                 throws IOException

Throws:

IOException

processPacket

private void processPacket(DatagramPacket pkt)

doWRQ

public void doWRQ()

Processes a Write Request at the beginning of an upload

doDATA

private void doDATA(TFTPPacket pkt)

doERROR

private void doERROR(TFTPPacket pkt)

endUpload

private void endUpload()