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

Field Summary

Fields inherited from class org.apache.commons.net.tftp.TFTPPacket

ACKNOWLEDGEMENT, DATA, ERROR, READ_REQUEST, SEGMENT_SIZE, WRITE_REQUEST

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

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

Methods inherited from class org.apache.commons.net.tftp.TFTPPacket

getAddress, getPort, getType, newDatagram, newTFTPPacket, setAddress, setPort

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

getBlockNumber

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

Returns:
The block number of the acknowledgement.

newDatagram

public DatagramPacket newDatagram()
Overrides:
newDatagram in interface TFTPPacket
Returns:
A UDP datagram containing the TFTP acknowledgement packet.

setBlockNumber

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