Class TFTPErrorPacket

java.lang.Object

com.oroinc.net.tftp.TFTPPacket

com.oroinc.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

Fields

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

Fields inherited from class TFTPPacket

ACKNOWLEDGEMENT, DATA, ERROR, READ_REQUEST, SEGMENT_SIZE, WRITE_REQUEST

Constructor Summary

Constructors

Constructor	Description
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

Modifier and Type	Method	Description
int	getError()	Returns the error code of the packet.
String	getMessage()	Returns the error message of the packet.
DatagramPacket	newDatagram()	This is a method exposed to the programmer in case he wants to implement his own TFTP client instead of using the TFTPClient class.

Methods inherited from class TFTPPacket

getAddress, getPort, getType, newTFTPPacket, setAddress, setPort

Methods inherited from class Object

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

Field Details

UNDEFINED

public static final int UNDEFINED

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

See Also:

• Constant Field Values

FILE_NOT_FOUND

public static final int FILE_NOT_FOUND

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

See Also:

• Constant Field Values

ACCESS_VIOLATION

public static final int ACCESS_VIOLATION

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

See Also:

• Constant Field Values

OUT_OF_SPACE

public static final int OUT_OF_SPACE

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

See Also:

• Constant Field Values

ILLEGAL_OPERATION

public static final int ILLEGAL_OPERATION

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

See Also:

• Constant Field Values

UNKNOWN_TID

public static final int UNKNOWN_TID

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

See Also:

• Constant Field Values

FILE_EXISTS

public static final int FILE_EXISTS

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

See Also:

• Constant Field Values

NO_SUCH_USER

public static final int NO_SUCH_USER

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

See Also:

• Constant Field Values

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.

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.

error - The error code of the packet.

message - The error message of the packet.

Method Details

newDatagram

public DatagramPacket newDatagram()

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

Specified by:

newDatagram in class TFTPPacket

Returns:

A UDP datagram containing the TFTP error packet.

getError

public int getError()

Returns the error code of the packet.

Returns:

The error code of the packet.

getMessage

public String getMessage()

Returns the error message of the packet.

Returns:

The error message of the packet.