protocolP2P

Class FilePart

java.lang.Object

protocolP2P.Payload

protocolP2P.FilePart

public class FilePart
extends Payload

Representation of payload for load response.

Version:

1.0

Author:

Louis Royer, Flavien Haas, JS Auge

Field Summary

Fields

Modifier and Type	Field and Description
private java.lang.String	filename
private static int	FILENAME_POSITION
private static int	FILENAME_SIZE_POSITION
private long	offset
private static int	OFFSET_POSITION
private byte[]	partialContent

Fields inherited from class protocolP2P.Payload

PAYLOAD_SIZE_POSITION, PAYLOAD_START_POSITION, requestResponseCode

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	FilePart(byte[] packet) Constructor (typically used by client) with Packet received as parameter.
	FilePart(java.lang.String filename, long offset, byte[] partialContent) Constructor (typically used by server) with informations about file part to send as parameters.

Method Summary

Modifier and Type	Method and Description
java.lang.String	getFilename() filename getter.
private int	getFilenameSize(byte[] packet) Read filename’s size from Packet.
long	getOffset() offset getter.
byte[]	getPartialContent() partialContent getter.
private void	setFilename(byte[] packet) Write from Packet into filename.
private void	setOffset(byte[] packet) Write from Packet into offset.
private void	setPartialContent(byte[] packet) Write from Packet into partialContent.
protected byte[]	toPacket() Returns a byte[] containing Packet with padding.

Methods inherited from class protocolP2P.Payload

getPayloadSize, getRequestResponseCode, setPayloadSize

Methods inherited from class java.lang.Object

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

Field Detail

filename

private java.lang.String filename

offset

private long offset

partialContent

private byte[] partialContent

OFFSET_POSITION

private static final int OFFSET_POSITION

See Also:

Constant Field Values

FILENAME_SIZE_POSITION

private static final int FILENAME_SIZE_POSITION

See Also:

Constant Field Values

FILENAME_POSITION

private static final int FILENAME_POSITION

See Also:

Constant Field Values

Constructor Detail

FilePart

public FilePart(java.lang.String filename,
                long offset,
                byte[] partialContent)
         throws InternalError

Constructor (typically used by server) with informations about file part to send as parameters.

Parameters:

filename - name of the file to send

totalSize - total size of the file to send

offset - where in the file begins the part we are sending

partialContent - content of the file we send

Throws:

InternalError

FilePart

protected FilePart(byte[] packet)
            throws TransmissionError,
                   SizeError,
                   ProtocolError,
                   InternalError

Constructor (typically used by client) with Packet received as parameter.

Parameters:

packet - the full Packet received

Throws:

SizeError

InternalError

TransmissionError

ProtocolError

Method Detail

toPacket

protected byte[] toPacket()
                   throws InternalError

Returns a byte[] containing Packet with padding. This Packet is still incomplete and should not be send directly. ProtocolP2PPacket will use this method to generate the complete Packet.

Overrides:

toPacket in class Payload

Returns:

Packet with padding

Throws:

InternalError

setOffset

private void setOffset(byte[] packet)
                throws SizeError

Write from Packet into offset.

Parameters:

packet - received Packet

Throws:

SizeError

getFilenameSize

private int getFilenameSize(byte[] packet)
                     throws SizeError,
                            ProtocolError

Read filename’s size from Packet.

Parameters:

packet - received Packet

Returns:

filename’s size

Throws:

ProtocolError

SizeError

setFilename

private void setFilename(byte[] packet)
                  throws ProtocolError,
                         SizeError,
                         InternalError

Write from Packet into filename.

Parameters:

packet - received Packet

Throws:

ProtocolError

SizeError

InternalError

setPartialContent

private void setPartialContent(byte[] packet)
                        throws ProtocolError,
                               SizeError

Write from Packet into partialContent.

Parameters:

packet - received Packet

Throws:

SizeError

ProtocolError

getPartialContent

public byte[] getPartialContent()

partialContent getter.

Returns:

partialcontent

getFilename

public java.lang.String getFilename()

filename getter.

Returns:

String

getOffset

public long getOffset()

offset getter.

Returns:

offset