Class FishServerHandler

java.lang.Object
  |
  +--java.lang.Thread
        |
        +--FishServerHandler

All Implemented Interfaces:

java.lang.Runnable

public class FishServerHandler

extends java.lang.Thread

Thread to handle clients interaction with the server.

Version:

1.0

Author:

Björn Bertilsson

Nested Class Summary

class	FishServerHandler.FilePost Post which contains information on the files
class	FishServerHandler.SharePost Post to put in the global dir with info. on the client and its files.

Field Summary

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

FishServerHandler(java.net.Socket cSocket)
Initializing the in- and outputstream between the client and the server.

Method Summary

void	addClientShare(java.lang.String ipAddress, int cSharePort, java.util.Vector cShare) Adds a share for the client to the global dir.
static void	addFilesSize(long num) Increase statistics on total size of shared files.
static void	addNumFiles(int num) Increase statistics on total number of shared files.
static void	decConnectedClients() Decrease statistics on number of currently connected clients.
static int	getClientsDuringUptime() Number of clients that have connected to the server since it started.
static int	getConnectedClients() Statistics on number of currently connected clients.
static long	getFilesSize() Statistics on total size of shared files.
static int	getNumFiles() Statistics on total number of shared files.
static void	incConnectedClients() Increase statistics on number of currently connected clients.
void	ping() Respond with statistics when the server is pinged.
void	pong() Check if client is still alive, if not disconnect.
void	printLog(java.lang.String text) Print the unique number for the client and the message in the log window.
java.lang.String	readLineLow() Reads a line from the client and convert it to lowercase.
java.lang.String	readLineLowExc() Reads a line from the client and convert it to lowercase.
void	removeClientShare(java.lang.String ipAndPort) Removes a share for the client in the global dir, by searching the global list with the unique combination of clients IP-address and portnumber.
static void	removeFilesSize(long num) Decrease statistics on total size of shared files.
static void	removeNumFiles(int num) Decrease statistics on total number of shared files.
void	run() Start the thread, and accept incomming commands.
void	search() Search for files in the global list with all clients files.
void	shareFiles() Shared files are put in a vector and associated with client, then to be put in the global searchable list.
void	unknownCommand(java.lang.String cmd) Function to handle invalid or unknown requests.
void	unshareFiles() Unshare clients files when they are not available any longer.

Methods inherited from class java.lang.Thread

activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getContextClassLoader, getName, getPriority, getThreadGroup, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setName, setPriority, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Constructor Detail

FishServerHandler

public FishServerHandler(java.net.Socket cSocket)

Initializing the in- and outputstream between the client and the server.

Parameters:

cSocket - Socket from the connected client.

Method Detail

run

public void run()

Start the thread, and accept incomming commands.

Specified by:

run in interface java.lang.Runnable

Overrides:

run in class java.lang.Thread

readLineLow

public java.lang.String readLineLow()

Reads a line from the client and convert it to lowercase.

Returns:

Read line from the client. Null if exception is thrown.

readLineLowExc

public java.lang.String readLineLowExc()
                                throws java.io.IOException

Reads a line from the client and convert it to lowercase.

Returns:

Read line from the client.

Throws:

java.io.IOException - Thrown when read from client fails.

printLog

public void printLog(java.lang.String text)

Print the unique number for the client and the message in the log window.

Parameters:

text - Text to be displayd.

pong

public void pong()

Check if client is still alive, if not disconnect. And if it isn't sharing any files disconnect too. All clients should share something, otherwise there wouldn't be any files to download.

shareFiles

public void shareFiles()

Shared files are put in a vector and associated with client, then to be put in the global searchable list.

unshareFiles

public void unshareFiles()

Unshare clients files when they are not available any longer.

ping

public void ping()

Respond with statistics when the server is pinged.

search

public void search()

Search for files in the global list with all clients files. Search of parts of filenames are possible as well as multiple searchwords to come closer to the desired file.

unknownCommand

public void unknownCommand(java.lang.String cmd)

Function to handle invalid or unknown requests.

Parameters:

cmd - Command sent to server.

addClientShare

public void addClientShare(java.lang.String ipAddress,
                           int cSharePort,
                           java.util.Vector cShare)

Adds a share for the client to the global dir.

Parameters:

ipAddress - IP-address where client can be reached.

cSharePort - Portnumber on which client serves download requests.

cShare - Vector containing all files shared from client.

removeClientShare

public void removeClientShare(java.lang.String ipAndPort)

Removes a share for the client in the global dir, by searching the global list with the unique combination of clients IP-address and portnumber.

Parameters:

ipAndPort - IP-address and portnumber of client connection concatenated together.

incConnectedClients

public static void incConnectedClients()

Increase statistics on number of currently connected clients.

decConnectedClients

public static void decConnectedClients()

Decrease statistics on number of currently connected clients.

getConnectedClients

public static int getConnectedClients()

Statistics on number of currently connected clients.

Returns:

Number of currently connected clients.

getClientsDuringUptime

public static int getClientsDuringUptime()

Number of clients that have connected to the server since it started.

Returns:

Number of clients that have been connected to the server since it started.

addNumFiles

public static void addNumFiles(int num)

Increase statistics on total number of shared files.

Parameters:

num - Number of files added.

removeNumFiles

public static void removeNumFiles(int num)

Decrease statistics on total number of shared files.

Parameters:

num - Number of files removed.

getNumFiles

public static int getNumFiles()

Statistics on total number of shared files.

Returns:

Number of shared files.

addFilesSize

public static void addFilesSize(long num)

Increase statistics on total size of shared files.

Parameters:

num - Total size in bytes of share added.

removeFilesSize

public static void removeFilesSize(long num)

Decrease statistics on total size of shared files.

Parameters:

num - Total size in bytes of share removed.

getFilesSize

public static long getFilesSize()

Statistics on total size of shared files.

Returns:

Total size in bytes.