Package it.polimi.ingsw.eriantys.server

Class Server

java.lang.Object

java.lang.Thread

it.polimi.ingsw.eriantys.server.Server

All Implemented Interfaces:

Runnable

public class Server
extends Thread

This class represents the application server thread. It handles all the clients, instantiating ClientConnection objects for each of them, and exposes various methods

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

Thread.State, Thread.UncaughtExceptionHandler

Field Summary

Fields

Modifier and Type	Field	Description
static final String	name

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

Constructors

Constructor	Description
Server(int port)	Constructs a Server object, starting the ServerSocket.

Method Summary

Modifier and Type	Method	Description
void	connect(String username, ClientConnection connection)	Handles a user connection by processing a Handshake communication item.
void	disconnect(ClientConnection connection)	Handles a user disconnection, causing an update on the internal state of the class.
void	gameOver(Game game, List<String> players)	Processes the server-side end of the game.
ClientConnection	getConnection(String username)	A getter for the client connection instance of a user.
void	handleMessage(ConnectionMessage message)	Handles a user request by processing a ConnectionMessage communication item.
boolean	isConnected(String username)	A method to know if a user with a specified identifier exists or not.
static void	main(String[] args)	The method is called to launch the server-side application.
void	reconnect(String username, int gameId, String passcode, ClientConnection connection)	Handles a user reconnection by processing a Reconnect communication item.
void	run()
void	sendHelp(HelpRequest helpRequest)	Handles the processing of a HelpRequest communication item.

Methods inherited from class java.lang.Thread

activeCount, checkAccess, clone, countStackFrames, currentThread, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, onSpinWait, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Field Details

name

public static final String name

See Also:

• Constant Field Values

Constructor Details

Server

public Server(int port)
       throws IOException

Constructs a Server object, starting the ServerSocket.

Parameters:

port - the port number on which the Server will run

Throws:

IOException - if the ServerSocket could not be opened

Method Details

main

public static void main(String[] args)

The method is called to launch the server-side application.

Parameters:

args - the command line arguments

run

public void run()

Specified by:

run in interface Runnable

Overrides:

run in class Thread

connect

public void connect(String username,
 ClientConnection connection)

Handles a user connection by processing a Handshake communication item.

Parameters:

username - the username requested by the client

connection - a reference to the client connection instance

reconnect

public void reconnect(String username,
 int gameId,
 String passcode,
 ClientConnection connection)

Handles a user reconnection by processing a Reconnect communication item.

Parameters:

username - the username which has been chosen by the client prior to its disconnection

gameId - the identifier of the game inside which the client was playing prior to its disconnection

passcode - the hexadecimal code which has been associated with the client by the disconnection handling infrastructure

connection - a reference to the client connection instance

disconnect

public void disconnect(ClientConnection connection)

Handles a user disconnection, causing an update on the internal state of the class.

Parameters:

connection - a reference to the client connection instance

isConnected

public boolean isConnected(String username)

A method to know if a user with a specified identifier exists or not.

Parameters:

username - the target user

Returns:

true if and only if a ClientConnection exists for the target username

getConnection

public ClientConnection getConnection(String username)
                               throws NoConnectionException

A getter for the client connection instance of a user.

Parameters:

username - the target user

Returns:

a reference to the client connection

Throws:

NoConnectionException - if no connection can be retrieved for the target player

handleMessage

public void handleMessage(ConnectionMessage message)
                   throws NoConnectionException

Handles a user request by processing a ConnectionMessage communication item.

Parameters:

message - the target message to process

Throws:

NoConnectionException - if no connection can be retrieved for the target player

sendHelp

public void sendHelp(HelpRequest helpRequest)
              throws NoConnectionException

Handles the processing of a HelpRequest communication item.

Parameters:

helpRequest - the target request to process

Throws:

NoConnectionException - if no connection can be retrieved for the target player

gameOver

public void gameOver(Game game,
 List<String> players)

Processes the server-side end of the game.

Parameters:

game - the identifier of the game which has been ended

players - the list of usernames who played the game