org.crsh.term.console
Class Console

java.lang.Object
  org.crsh.term.console.Console

public final class Console
extends Object

This class provides an abstraction for a console. This implementation wraps the input and output of a terminal based on a bidirectional io.

Interactions between terminal and console are done though the ViewReader and ViewWriter classes.

Version:

$Revision$

Author:

Julien Viet

Field Summary

private char[]	buffer .
private int	curAt Cursor Position, always equal to size unless the underlying *.IO class supports editing.
private boolean	echoing Whether or not we do echoing.
private LinkedList<CharSequence>	lines .
private boolean	previousCR Do we have a issued a CR previously?
private ConsoleReader	reader .
private int	size .
private ViewReader	viewReader .
private ViewWriter	viewWriter .
private ConsoleWriter	writer .

Constructor Summary

Console(ViewWriter viewWriter)

Method Summary

private void	appendData(char c)
private void	appendData(CharSequence s)
private int	appendDel()
void	clearBuffer() Clears the buffer without doing any echoing.
private void	echo(char c)
private void	echo(String s)
private void	echoCRLF()
private void	echoDel()
CharSequence	getBuffer()
CharSequence	getBufferToCursor()
ConsoleReader	getReader() Returns the console reader.
ViewReader	getViewReader()
ConsoleWriter	getWriter()
boolean	isEchoing()
private void	moveLeft()
private void	moveRight()
private int	pop()
private void	push(char c)
void	setEchoing(boolean echoing)

Methods inherited from class java.lang.Object

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

Field Detail

buffer

private char[] buffer

.

size

private int size

.

curAt

private int curAt

Cursor Position, always equal to size unless the underlying *.IO class supports editing.

lines

private LinkedList<CharSequence> lines

.

previousCR

private boolean previousCR

Do we have a issued a CR previously?

echoing

private boolean echoing

Whether or not we do echoing.

viewWriter

private final ViewWriter viewWriter

.

viewReader

private final ViewReader viewReader

.

reader

private final ConsoleReader reader

.

writer

private final ConsoleWriter writer

.

Constructor Detail

Console

public Console(ViewWriter viewWriter)

Method Detail

clearBuffer

public void clearBuffer()

Clears the buffer without doing any echoing.

getBuffer

public CharSequence getBuffer()

getBufferToCursor

public CharSequence getBufferToCursor()

isEchoing

public boolean isEchoing()

setEchoing

public void setEchoing(boolean echoing)

getReader

public ConsoleReader getReader()

Returns the console reader.

Returns:

the console reader

getViewReader

public ViewReader getViewReader()

getWriter

public ConsoleWriter getWriter()

appendData

private void appendData(CharSequence s)
                 throws IOException

Throws:

IOException

appendData

private void appendData(char c)
                 throws IOException

Throws:

IOException

appendDel

private int appendDel()
               throws IOException

Throws:

IOException

moveRight

private void moveRight()
                throws IOException

Throws:

IOException

moveLeft

private void moveLeft()
               throws IOException

Throws:

IOException

echo

private void echo(char c)
           throws IOException

Throws:

IOException

echo

private void echo(String s)
           throws IOException

Throws:

IOException

echoDel

private void echoDel()
              throws IOException

Throws:

IOException

echoCRLF

private void echoCRLF()
               throws IOException

Throws:

IOException

pop

private int pop()

push

private void push(char c)
           throws IOException

Throws:

IOException