gecco.communication.client
Class DataInputExchangeHandler

java.lang.Object
  |
  +--gecco.communication.client.DataInputExchangeHandler

All Implemented Interfaces:

Runnable

public class DataInputExchangeHandler

extends Object

implements Runnable

A class that listens for incoming messages from the server, and tells the client about them.

Author:

NiklasHallenfur, Henrik Hägerström, Jon Åslund

Field Summary

private Client	client Description of the Field
private ServerConnection	connection Description of the Field
private DataOutputExchangeHandler	DEHOutput Description of the Field
private boolean	die Description of the Field
private ServerAmbassador	i_am_working_for Description of the Field

Constructor Summary

DataInputExchangeHandler(ServerConnection sc, Client cl, ServerAmbassador sa, DataOutputExchangeHandler DEHOutput)

Method Summary

private void	getActionBlocked() an action is no longer valid for a certain unit, get which action and which unit
private void	getActionCompleted() Gets the handle of an action that has been completed
private void	getActionFailed() Gets the handle and an error message for an action that failed
private int	getInt(byte[] byteArray, int index) A helper function that makes unsigned casting from byte to int
private void	getMapPointInvisible() get which map point is no longer visible.
private void	getMapPointsInvisible() gets an array of Points that are no longer visible
private void	getMapUpdate() get an update of a map point.
private void	getMapUpdates() Gets an array of positions and new colors for mappoints.
private void	getUnitDeleted() gets which unit has been deleted (not necessarily destroyed)
private void	getUnitDestroyed() a unit has been destroyed, get which one
private void	getUnitMessage() gets a message about a certain unit
private void	getUnitPositionUpdate() Get a message from the server that updates the position of a unit
private void	getUnitPropertyUpdate() Get a message from the server that updates the properties of a unit
private void	getUnitVisible() Get a message that a new unit is visible to the client, gets the unit's properties and action, type, etc.
void	kill() called whenever someone wants this thread to die
private void	receiveMessage(int leadingInteger) Called when there are messages to receive from the server.
void	run() Main processing method for the DataInputExchangeHandler object

Methods inherited from class java.lang.Object

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

Field Detail

connection

private ServerConnection connection

Description of the Field

client

private Client client

Description of the Field

i_am_working_for

private ServerAmbassador i_am_working_for

Description of the Field

die

private boolean die

Description of the Field

DEHOutput

private DataOutputExchangeHandler DEHOutput

Description of the Field

Constructor Detail

DataInputExchangeHandler

public DataInputExchangeHandler(ServerConnection sc,
                                Client cl,
                                ServerAmbassador sa,
                                DataOutputExchangeHandler DEHOutput)

Parameters:

sc - connection to server containing the stream to write to

cl - the Client to send incoming messages to

sa - the ServerAmbassador this thread is working for DEHOutput the object to send PingReplyMessage:s to

DEHOutput - Description of Parameter

Method Detail

run

public void run()

Main processing method for the DataInputExchangeHandler object

Specified by:

run in interface Runnable

kill

public void kill()

called whenever someone wants this thread to die

getUnitPositionUpdate

private void getUnitPositionUpdate()
                            throws Exception

Get a message from the server that updates the position of a unit

Throws:

Exception - Description of Exception

getUnitPropertyUpdate

private void getUnitPropertyUpdate()
                            throws Exception

Get a message from the server that updates the properties of a unit

Throws:

Exception - Description of Exception

getUnitVisible

private void getUnitVisible()
                     throws Exception

Get a message that a new unit is visible to the client, gets the unit's properties and action, type, etc.

Throws:

Exception - Description of Exception

getMapUpdate

private void getMapUpdate()
                   throws Exception

get an update of a map point. (not used, getMapUpdates is used instead

Throws:

Exception - Description of Exception

getActionBlocked

private void getActionBlocked()
                       throws Exception

an action is no longer valid for a certain unit, get which action and which unit

Throws:

Exception - Description of Exception

getUnitDeleted

private void getUnitDeleted()
                     throws Exception

gets which unit has been deleted (not necessarily destroyed)

Throws:

Exception - Description of Exception

getUnitMessage

private void getUnitMessage()
                     throws Exception

gets a message about a certain unit

Throws:

Exception - Description of Exception

getUnitDestroyed

private void getUnitDestroyed()
                       throws Exception

a unit has been destroyed, get which one

Throws:

Exception - Description of Exception

getMapPointInvisible

private void getMapPointInvisible()
                           throws Exception

get which map point is no longer visible. getMapPointsInvisible is the preferred method to use

Throws:

Exception - Description of Exception

getMapPointsInvisible

private void getMapPointsInvisible()
                            throws Exception

gets an array of Points that are no longer visible

Throws:

Exception - Description of Exception

getInt

private int getInt(byte[] byteArray,
                   int index)

A helper function that makes unsigned casting from byte to int

Parameters:

byteArray - Description of Parameter

index - Description of Parameter

Returns:

The Int value

getMapUpdates

private void getMapUpdates()
                    throws Exception

Gets an array of positions and new colors for mappoints.

Throws:

Exception - Description of Exception

getActionCompleted

private void getActionCompleted()
                         throws Exception

Gets the handle of an action that has been completed

Throws:

Exception - Description of Exception

getActionFailed

private void getActionFailed()
                      throws Exception

Gets the handle and an error message for an action that failed

Throws:

Exception - Description of Exception

receiveMessage

private void receiveMessage(int leadingInteger)
                     throws Exception

Called when there are messages to receive from the server. Checks the type of message to get, and calls the appropriate method that gets that kind of message

Parameters:

leadingInteger - Description of Parameter

Throws:

Exception - Description of Exception