com.aoindustries.io

Class TerminalWriter

java.lang.Object

java.io.Writer

java.io.PrintWriter

com.aoindustries.io.TerminalWriter

All Implemented Interfaces:

Closeable, Flushable, Appendable, AutoCloseable

public class TerminalWriter
extends PrintWriter

A writer that controls advanced features of VT/100 terminals, while silently reverting to standard behavior where the functions are not supported.

Author:

AO Industries, Inc.

Field Summary

Fields inherited from class java.io.PrintWriter

out

Fields inherited from class java.io.Writer

lock

Constructor Summary

Constructors

Constructor and Description
TerminalWriter(Writer out)
TerminalWriter(Writer out, boolean autoFlush)

Method Summary

Modifier and Type	Method and Description
void	attributesOff()
void	boldOn()
void	clearScreen()
boolean	isEnabled()
static boolean	isSupported()
String	progressOutput(String lastVerboseString, String newVerboseString)
static String	progressOutput(String lastVerboseString, String newVerboseString, PrintStream out) (Over)writes a progress line to the given PrintStream.
static String	progressOutput(String lastVerboseString, String newVerboseString, Writer out) (Over)writes a progress line to the given PrintStream.
void	setEnabled(boolean enabled) Enables the special features of the terminal writer.

Methods inherited from class java.io.PrintWriter

append, append, append, checkError, clearError, close, flush, format, format, print, print, print, print, print, print, print, print, print, printf, printf, println, println, println, println, println, println, println, println, println, println, setError, write, write, write, write, write

Methods inherited from class java.lang.Object

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

Constructor Detail

TerminalWriter

public TerminalWriter(Writer out)

TerminalWriter

public TerminalWriter(Writer out,
                      boolean autoFlush)

Method Detail

isSupported

public static boolean isSupported()

progressOutput

public static String progressOutput(String lastVerboseString,
                                    String newVerboseString,
                                    PrintStream out)

(Over)writes a progress line to the given PrintStream. Any extra characters from previous output are covered with spaces. Any common prefix is not overwritten.

Parameters:

lastVerboseString - The last line output

newVerboseString - The new line to display

Returns:

The new line (newVerboseString)

progressOutput

public static String progressOutput(String lastVerboseString,
                                    String newVerboseString,
                                    Writer out)
                             throws IOException

(Over)writes a progress line to the given PrintStream. Any extra characters from previous output are covered with spaces. Any common prefix is not overwritten.

Parameters:

lastVerboseString - The last line output

newVerboseString - The new line to display

Returns:

The new line (newVerboseString)

Throws:

IOException

attributesOff

public void attributesOff()
                   throws IOException

Throws:

IOException

boldOn

public void boldOn()
            throws IOException

Throws:

IOException

clearScreen

public void clearScreen()
                 throws IOException

Throws:

IOException

isEnabled

public boolean isEnabled()

setEnabled

public void setEnabled(boolean enabled)

Enables the special features of the terminal writer.

progressOutput

public String progressOutput(String lastVerboseString,
                             String newVerboseString)
                      throws IOException

Throws:

IOException

See Also:

progressOutput(java.lang.String, java.lang.String, java.io.Writer)