vbsServer

Class FileTransferServer

java.lang.Object

vbsServer.FileTransferServer

All Implemented Interfaces:

java.lang.Runnable

public class FileTransferServer
extends java.lang.Object
implements java.lang.Runnable

The class FileTransferServer is the server responsible for receiving incoming files from clients.
The server listens on the port given in the constructor. If a new socket is established it is given to a FileReceiver, which received the file.

It is intended to run in its own thread.

Author:

Jacob Honoré Broberg, Kartheepan Balachandran (kba@es.aau.dk), Tomasz Bujlow (tbu@es.aau.dk)

Field Summary

Fields

Modifier and Type	Field and Description
private java.lang.Thread	fdbServerThread Thread used by the class.
private static org.apache.log4j.Logger	log Used to log different events.
private java.io.File	myDataFolder Folder used to store received files.
private java.lang.String	myFileExtension Extension which will be assigned to the received files.
private java.net.ServerSocket	myServerSocket The socket on which the server listens for incoming connections.
private boolean	runFlag The thread will stop when this flag is false.

Constructor Summary

Constructors

Constructor and Description
FileTransferServer(int port, java.lang.String myDataFolderPath, java.lang.String myFileExtension) Constructs the object.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	isAlive() Checks if the thread is alive.
void	run() Runs the thread.
private void	setDataFolder(java.lang.String dataFolderPath) Prepares the folder for storing incoming files.
void	start() Starts the thread.
void	stop() Stops the thread.

Methods inherited from class java.lang.Object

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

Field Detail

log

private static org.apache.log4j.Logger log

Used to log different events.

fdbServerThread

private java.lang.Thread fdbServerThread

Thread used by the class.

myServerSocket

private java.net.ServerSocket myServerSocket

The socket on which the server listens for incoming connections.

myDataFolder

private java.io.File myDataFolder

Folder used to store received files.

myFileExtension

private java.lang.String myFileExtension

Extension which will be assigned to the received files.

runFlag

private boolean runFlag

The thread will stop when this flag is false.

Constructor Detail

FileTransferServer

public FileTransferServer(int port,
                  java.lang.String myDataFolderPath,
                  java.lang.String myFileExtension)
                   throws java.io.IOException

Constructs the object.

Parameters:

port - port on which the server listens for incoming connnections

myDataFolderPath - folder used to store received files

myFileExtension - extension assigned to the received files

Throws:

java.io.IOException - if a communication problem occurs

Method Detail

start

public void start()

Starts the thread.

stop

public void stop()

Stops the thread.

isAlive

public boolean isAlive()

Checks if the thread is alive.

Returns:

true if the thread is alive, false otherwise

setDataFolder

private void setDataFolder(java.lang.String dataFolderPath)
                    throws java.io.IOException

Prepares the folder for storing incoming files.

Parameters:

dataFolderPath - folder used to store received files

Throws:

java.io.IOException - if a communication problem occurs

run

public void run()

Runs the thread. Each incoming connection from a client is handled by an instance of FileReceiver.

Specified by:

run in interface java.lang.Runnable