protocolP2P

Class DiscoverResponse

java.lang.Object

protocolP2P.Payload

protocolP2P.DiscoverResponse

public class DiscoverResponse
extends Payload

Representation of payload for discover 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 java.util.List<HostItem>	hostList

Fields inherited from class protocolP2P.Payload

PAYLOAD_SIZE_POSITION, PAYLOAD_START_POSITION, requestResponseCode

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	DiscoverResponse(byte[] packet) Constructor (typically used by server) with a byte[] parameter containing the Packet received.
	DiscoverResponse(java.lang.String filename, java.util.List<HostItem> hostList) Constructor with filename (typically used by tracker).

Method Summary

Modifier and Type	Method and Description
java.lang.String	getFilename() Filename getter.
java.util.List<HostItem>	getHostList() HostList getter.
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

hostList

private java.util.List<HostItem> hostList

filename

private java.lang.String filename

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

DiscoverResponse

public DiscoverResponse(java.lang.String filename,
                        java.util.List<HostItem> hostList)
                 throws InternalError

Constructor with filename (typically used by tracker). If filename is null, it is initialized with "".

Parameters:

filename - Name of the file related to the server list.

hostList - List of servers

Throws:

InternalError

DiscoverResponse

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

Constructor (typically used by server) with a byte[] parameter containing the Packet received.

Parameters:

packet - the full Packet received

Throws:

SizeError

InternalError

ProtocolError

TransmissionError

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

getHostList

public java.util.List<HostItem> getHostList()

HostList getter.

Returns:

hostList

getFilename

public java.lang.String getFilename()

Filename getter.

Returns:

filename