org.apache.commons.net.tftp

Class TFTPErrorPacket

java.lang.Object
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+--org.apache.commons.net.tftp.TFTPPacket
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   +--org.apache.commons.net.tftp.TFTPErrorPacket

public final class TFTPErrorPacket
extends TFTPPacket

A final class derived from TFTPPacket definiing the TFTP Error 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.

Author:

Daniel F. Savarese

See Also:

TFTPPacket
TFTPPacketException
TFTP

Field Summary

static int	ACCESS_VIOLATION The access violation error code according to RFC 783, value 2.
static int	FILE_EXISTS The file already exists error code according to RFC 783, value 6.
static int	FILE_NOT_FOUND The file not found error code according to RFC 783, value 1.
static int	ILLEGAL_OPERATION The illegal TFTP operation error code according to RFC 783, value 4.
static int	NO_SUCH_USER The no such user error code according to RFC 783, value 7.
static int	OUT_OF_SPACE The disk full error code according to RFC 783, value 3.
static int	UNDEFINED The undefined error code according to RFC 783, value 0.
static int	UNKNOWN_TID The unknown transfer id error code according to RFC 783, value 5.

Constructor Summary

TFTPErrorPacket(InetAddress destination, int port, int error, String message)

Creates an error packet to be sent to a host at a given port with an error code and error message.

Method Summary

int

Returns the error code of the packet.

String

Returns the error message of the packet.

DatagramPacket

Creates a UDP datagram containing all the TFTP error packet data in the proper format.

Field Details

ACCESS_VIOLATION

public static final int ACCESS_VIOLATION

The access violation error code according to RFC 783, value 2. **

FILE_EXISTS

public static final int FILE_EXISTS

The file already exists error code according to RFC 783, value 6. **

FILE_NOT_FOUND

public static final int FILE_NOT_FOUND

The file not found error code according to RFC 783, value 1. **

ILLEGAL_OPERATION

public static final int ILLEGAL_OPERATION

The illegal TFTP operation error code according to RFC 783, value 4.

NO_SUCH_USER

public static final int NO_SUCH_USER

The no such user error code according to RFC 783, value 7. **

OUT_OF_SPACE

public static final int OUT_OF_SPACE

The disk full error code according to RFC 783, value 3. **

UNDEFINED

public static final int UNDEFINED

The undefined error code according to RFC 783, value 0. **

UNKNOWN_TID

public static final int UNKNOWN_TID

The unknown transfer id error code according to RFC 783, value 5. **

Constructor Details

TFTPErrorPacket

public TFTPErrorPacket(InetAddress destination, int port, int error, String message)

Creates an error packet to be sent to a host at a given port with an error code and error message.

destination - The host to which the packet is going to be sent.
port - The port to which the packet is going to be sent.
error - The error code of the packet.
message - The error message of the packet.

Method Details

getError

public int getError()

Returns the error code of the packet.

The error code of the packet.

getMessage

public String getMessage()

Returns the error message of the packet.

The error message of the packet.

newDatagram

public DatagramPacket newDatagram()

Creates a UDP datagram containing all the TFTP error packet data in the proper format. This is a method exposed to the programmer in case he wants to implement his own TFTP client instead of using the TFTPClient class. Under normal circumstances, you should not have a need to call this method.

Returns:

A UDP datagram containing the TFTP error packet.