net.sf.freehost3270.gui

Class DefaultTerminalModel

java.lang.Object

net.sf.freehost3270.gui.DefaultTerminalModel

All Implemented Interfaces:

RWTnAction

public class DefaultTerminalModel
extends Object
implements RWTnAction

DefaultTerminalModel is the datamodel class for the JTerminalScreen widget. The state of this object is what the widget will control, and render. No state beyond presentation and layout is kept within the JTerminalScreen.

Author:

Bryan.Varner bman@varnernet.com

Field Summary

Fields inherited from interface net.sf.freehost3270.client.RWTnAction

CONNECTION_ERROR, DISCONNECTED_BY_REMOTE_HOST, READY, X_WAIT

Constructor Summary

Constructors

Constructor and Description
DefaultTerminalModel()
DefaultTerminalModel(int modelType)

Method Summary

Methods

Modifier and Type	Method and Description
void	addTerminalEventListener(TerminalEventListener tel)
void	beep() This method is called when the host application sends the beep command.
void	broadcastMessage(String message) This method is called when the SessionServer admin sends a broadcast message to all currently connected clients.
void	connect(String host, int port)
void	connect(String host, int port, boolean encryption)
void	connect(String host, int port, String host3270, int port3270, boolean encryption)
void	cursorMove(int oldPos, int newPos) This method is called when the cursor position (current buffer position) of the 3270 engine is changed by host commands or by user input.
void	disconnect()
String	getCurrentPosition()
RW3270	getEmulator()
String	getMessage()
int	getMessageNumber()
String	getStatus() Gets the current Status Message
void	incomingData() Is called by the 3270 telnet engine when it has received new data.
void	removeTerminalEventListener(TerminalEventListener tel)
void	setCursor(int position) Called by JTerminal to update the model on cursor moves
boolean	showMessage()
void	status(int msg) This method is called by the 3270 engine to communicate status changes to the client.
boolean	tooManyConnections()

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultTerminalModel

public DefaultTerminalModel()

DefaultTerminalModel

public DefaultTerminalModel(int modelType)

Method Detail

getEmulator

public RW3270 getEmulator()

beep

public void beep()

Description copied from interface: RWTnAction

This method is called when the host application sends the beep command. It should fire some sort of audible alarm on the client's system. For example:

 public void beep() {
    Toolkit.getDefaultToolkit().beep();
 }
 

Specified by:

beep in interface RWTnAction

broadcastMessage

public void broadcastMessage(String message)

Description copied from interface: RWTnAction

This method is called when the SessionServer admin sends a broadcast message to all currently connected clients.

If you're implementing Broadcast Messaging in your client, this method should paint String msg to the client's screen.

Specified by:

broadcastMessage in interface RWTnAction

Parameters:

message - The broadcast message from the system administrator.

cursorMove

public void cursorMove(int oldPos,
              int newPos)

Description copied from interface: RWTnAction

This method is called when the cursor position (current buffer position) of the 3270 engine is changed by host commands or by user input. When drawing the cursor to the client's display, use this method to fire cursor draw logic.

This is useful for 'undrawing' the cursor before drawing it in its new position. The position is returned as an integer value between 0 (first character position) and len(dataBuffer) - 1 (last character position). For example using 3270 Model 2. The value would be between 0 and 1919.

Specified by:

cursorMove in interface RWTnAction

Parameters:

oldPos - The previous cursor position.

newPos - The new (current) cursor position.

incomingData

public void incomingData()

Description copied from interface: RWTnAction

Is called by the 3270 telnet engine when it has received new data.

This method would usually call a paint() method or other display update. Note: this method is useful when the client implementation is stateful. If the 3270 engine does not have direct access to the user's display, the RW3270.waitForNewData() method will suspend the calling thread until new data arrives.

Specified by:

incomingData in interface RWTnAction

status

public void status(int msg)

Description copied from interface: RWTnAction

This method is called by the 3270 engine to communicate status changes to the client. The possible values for int are outlined in the constants for this field.

• RWtnAction.DISCONNECTED_BY_REMOTE_HOST: This status message indicates that the connection to the host was lost.
• RWTnAction.CONNECTION_ERROR: This status message that there was a problem connecting to the SessionServer or that the SessionServer had trouble connecting to the 3270 host.
• RWTnAction.X_WAIT: This status message means the 3270 engine is waiting for a response from the 3270 host.
• RWTnAction.READY: This status message means the 3270 engine is ready for input from the client implementation.

Specified by:

status in interface RWTnAction

Parameters:

msg - The status message

addTerminalEventListener

public void addTerminalEventListener(TerminalEventListener tel)

removeTerminalEventListener

public void removeTerminalEventListener(TerminalEventListener tel)

setCursor

public void setCursor(int position)

Called by JTerminal to update the model on cursor moves

connect

public void connect(String host,
           int port,
           String host3270,
           int port3270,
           boolean encryption)

connect

public void connect(String host,
           int port)
             throws IOException,
                    UnknownHostException

Throws:

IOException

UnknownHostException

connect

public void connect(String host,
           int port,
           boolean encryption)
             throws IOException,
                    UnknownHostException

Throws:

IOException

UnknownHostException

disconnect

public void disconnect()

getCurrentPosition

public String getCurrentPosition()

getStatus

public String getStatus()

Gets the current Status Message

tooManyConnections

public boolean tooManyConnections()

showMessage

public boolean showMessage()

getMessage

public String getMessage()

getMessageNumber

public int getMessageNumber()