clientP2P

Class ClientDownloadPart

java.lang.Object

tools.ServeErrors

clientP2P.ClientDownloadPart

All Implemented Interfaces:

java.lang.Runnable

Direct Known Subclasses:

ClientDownloadPartTCP, ClientDownloadPartUDP

public abstract class ClientDownloadPart
extends ServeErrors
implements java.lang.Runnable

Class to download file parts.

Version:

1.0

Author:

Louis Royer, Flavien Haas, JS Auge

Field Summary

Fields

Modifier and Type	Field and Description
protected HostItem	client
protected boolean	failed
protected java.lang.String	filename
protected Logger	logger
protected ClientDownload	manager
protected static long	MAX_PARTIAL_SIZE
protected boolean	noTask
protected java.lang.String	partsSubdir
protected java.util.List<java.lang.Long>	pendingTasks
protected long	receivedBytesCount
private HostItem	server
protected boolean	stop
protected java.util.List<java.lang.Long>	tasksDone
protected boolean	tasksListsLock
protected java.util.List<java.lang.Long>	toDoTasks

Constructor Summary

Constructors

Constructor and Description
ClientDownloadPart(ClientDownload manager, java.lang.String filename, java.lang.String partsSubdir, Logger logger, HostItem client, HostItem server) Constructor with filename, socket, and part subdir

Method Summary

Modifier and Type	Method and Description
void	assignTask(java.lang.Long task) Adds offset of files parts to download.
protected abstract void	closeSocket() Close the socket
void	doTasks() Send one request and wait for one response.
<T extends ProtocolP2PPacket<?>> boolean	downloadPart(T d) Download file part associated to the request send (d).
java.util.List<java.lang.Long>	getDone() Get list of downloaded file parts offset, then clear this list.
java.util.List<java.lang.Long>	getFailed() Get list of offsets that have not be downloaded if failed, else empty list.
java.lang.Long	getReceivedBytesCount() receivedBytesCount getter
HostItem	getServer() Server getter
protected abstract java.lang.Object	getSocket() Get the socket
boolean	hasFailed() True if thread has failed to get a file.
protected ProtocolP2PPacket<?>	reqPart(java.lang.Long offset) Send a request for a specific offset.
void	run() Runnable implementation
void	setStop() Asks to stop thread.

Methods inherited from class tools.ServeErrors

createProtocolP2PPacket, sendEmptyDirectory, sendEmptyFile, sendInternalError, sendNotATracker, sendNotFound, sendUnknownHost, writeLog, writeLog

Methods inherited from class java.lang.Object

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

Field Detail

receivedBytesCount

protected long receivedBytesCount

toDoTasks

protected java.util.List<java.lang.Long> toDoTasks

pendingTasks

protected java.util.List<java.lang.Long> pendingTasks

tasksDone

protected java.util.List<java.lang.Long> tasksDone

tasksListsLock

protected volatile boolean tasksListsLock

stop

protected volatile boolean stop

failed

protected volatile boolean failed

filename

protected java.lang.String filename

noTask

protected volatile boolean noTask

partsSubdir

protected java.lang.String partsSubdir

MAX_PARTIAL_SIZE

protected static final long MAX_PARTIAL_SIZE

See Also:

Constant Field Values

manager

protected ClientDownload manager

logger

protected Logger logger

client

protected HostItem client

server

private HostItem server

Constructor Detail

ClientDownloadPart

public ClientDownloadPart(ClientDownload manager,
                          java.lang.String filename,
                          java.lang.String partsSubdir,
                          Logger logger,
                          HostItem client,
                          HostItem server)

Constructor with filename, socket, and part subdir

Parameters:

filename - name of file to download

socket - socket to use

partsSubdir - directory to store .part files

logger - Logger

client - HostItem of the application

server - HostItem of the server application

Method Detail

getReceivedBytesCount

public java.lang.Long getReceivedBytesCount()

receivedBytesCount getter

Returns:

receivedBytesCount

getServer

public HostItem getServer()

Server getter

Returns:

server

hasFailed

public boolean hasFailed()

True if thread has failed to get a file.

Returns:

true if thread has failed to get a file

setStop

public void setStop()
             throws java.lang.InterruptedException

Asks to stop thread.

Throws:

java.lang.InterruptedException

run

public void run()

Runnable implementation

Specified by:

run in interface java.lang.Runnable

closeSocket

protected abstract void closeSocket()
                             throws java.io.IOException

Close the socket

Throws:

java.io.IOException

getFailed

public java.util.List<java.lang.Long> getFailed()

Get list of offsets that have not be downloaded if failed, else empty list.

Returns:

list of offsets

getDone

public java.util.List<java.lang.Long> getDone()
                                       throws java.lang.InterruptedException

Get list of downloaded file parts offset, then clear this list.

Returns:

list of offsets

Throws:

java.lang.InterruptedException

assignTask

public void assignTask(java.lang.Long task)
                throws java.lang.InterruptedException

Adds offset of files parts to download.

Parameters:

task - offset to download

Throws:

java.lang.InterruptedException

doTasks

public void doTasks()
             throws java.lang.InterruptedException

Send one request and wait for one response. Blocks when no task.

Throws:

java.lang.InterruptedException

reqPart

protected ProtocolP2PPacket<?> reqPart(java.lang.Long offset)

Send a request for a specific offset.

Parameters:

offset - Offset of the file part to download

Returns:

ProtocolP2PPacketTCP used to send request

getSocket

protected abstract java.lang.Object getSocket()

Get the socket

downloadPart

public <T extends ProtocolP2PPacket<?>> boolean downloadPart(T d)

Download file part associated to the request send (d).

Parameters:

d - request packet

Returns:

true on failure, else false