org.apache.commons.net.tftp

Class TFTPAckPacket


public final class TFTPAckPacket
extends TFTPPacket

A final class derived from TFTPPacket definiing the TFTP Acknowledgement packet type.

Details regarding the TFTP protocol and the format of TFTP packets can be found in RFC 783. But the point of these classes is to keep you from having to worry about the internals. Additionally, only very few people should have to care about any of the TFTPPacket classes or derived classes. Almost all users should only be concerned with the TFTPClient class receiveFile() and sendFile() methods.

See Also:
TFTPPacket, TFTPPacketException, TFTP

Constructor Summary

TFTPAckPacket(InetAddress destination, int port, int blockNumber)
Creates an acknowledgment packet to be sent to a host at a given port acknowledging receipt of a block.

Method Summary

@Override
DatagramPacket newDatagram()
Creates a UDP datagram containing all the TFTP acknowledgement packet data in the proper format.
int
getBlockNumber()
Returns the block number of the acknowledgement.
void
setBlockNumber(int blockNumber)
Sets the block number of the acknowledgement.

Constructor Details

TFTPAckPacket

public TFTPAckPacket(InetAddress destination,
                     int port,
                     int blockNumber)
Creates an acknowledgment packet to be sent to a host at a given port acknowledging receipt of a block.

Parameters:
destination - The host to which the packet is going to be sent.
port - The port to which the packet is going to be sent.
blockNumber - The block number being acknowledged.

Method Details

DatagramPacket newDatagram

public @Override DatagramPacket newDatagram()
Returns:
A UDP datagram containing the TFTP acknowledgement packet.

getBlockNumber

public int getBlockNumber()
Returns the block number of the acknowledgement.

Returns:
The block number of the acknowledgement.

setBlockNumber

public void setBlockNumber(int blockNumber)
Sets the block number of the acknowledgement. **