Package org.jline.terminal

Class TerminalBuilder

java.lang.Object

org.jline.terminal.TerminalBuilder

public final class TerminalBuilder
extends Object

Builder class to create terminals.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	TerminalBuilder.SystemOutput

Field Summary

Fields

Modifier and Type	Field	Description
static final String	PROP_CODEPAGE
static final String	PROP_COLOR_DISTANCE
static final String	PROP_DISABLE_ALTERNATE_CHARSET
static final String	PROP_DUMB
static final String	PROP_DUMB_COLOR
static final String	PROP_ENCODING
static final String	PROP_EXEC
static final String	PROP_FFM
static final String	PROP_FILE_DESCRIPTOR_CREATION_MODE
static final String	PROP_FILE_DESCRIPTOR_CREATION_MODE_DEFAULT
static final String	PROP_FILE_DESCRIPTOR_CREATION_MODE_NATIVE
static final String	PROP_FILE_DESCRIPTOR_CREATION_MODE_REFLECTION
static final String	PROP_JANSI
static final String	PROP_JNA
static final String	PROP_JNI
static final String	PROP_NON_BLOCKING_READS
static final String	PROP_OUTPUT
static final String	PROP_OUTPUT_ERR
static final String	PROP_OUTPUT_ERR_OUT
static final String	PROP_OUTPUT_FORCED_ERR
static final String	PROP_OUTPUT_FORCED_OUT
static final String	PROP_OUTPUT_OUT
static final String	PROP_OUTPUT_OUT_ERR
static final String	PROP_PROVIDER
static final String	PROP_PROVIDER_DUMB
static final String	PROP_PROVIDER_EXEC
static final String	PROP_PROVIDER_FFM
static final String	PROP_PROVIDER_JANSI
static final String	PROP_PROVIDER_JNA
static final String	PROP_PROVIDER_JNI
static final String	PROP_PROVIDERS
static final String	PROP_PROVIDERS_DEFAULT
static final String	PROP_REDIRECT_PIPE_CREATION_MODE
static final String	PROP_REDIRECT_PIPE_CREATION_MODE_DEFAULT
static final String	PROP_REDIRECT_PIPE_CREATION_MODE_NATIVE
static final String	PROP_REDIRECT_PIPE_CREATION_MODE_REFLECTION
static final String	PROP_TYPE

Method Summary

Modifier and Type	Method	Description
TerminalBuilder	attributes(Attributes attributes)	Attributes to use when creating a non system terminal, i.e.
Terminal	build()
static TerminalBuilder	builder()	Creates a new terminal builder instance.
TerminalBuilder	codepage(int codepage)	Deprecated. JLine now writes Unicode output independently from the selected code page.
TerminalBuilder	color(boolean color)
Charset	computeEncoding()
TerminalBuilder.SystemOutput	computeSystemOutput()
String	computeType()
TerminalBuilder	dumb(boolean dumb)
TerminalBuilder	encoding(String encoding)	Set the encoding to use for reading/writing from the console.
TerminalBuilder	encoding(Charset encoding)	Set the Charset to use for reading/writing from the console.
TerminalBuilder	exec(boolean exec)
TerminalBuilder	ffm(boolean ffm)
List<TerminalProvider>	getProviders(String provider, IllegalStateException exception)
TerminalBuilder	jansi(boolean jansi)
TerminalBuilder	jna(boolean jna)
TerminalBuilder	jni(boolean jni)
TerminalBuilder	name(String name)
TerminalBuilder	nativeSignals(boolean nativeSignals)
TerminalBuilder	paused(boolean paused)	Initial paused state of the terminal (defaults to false).
TerminalBuilder	provider(String provider)
TerminalBuilder	providers(String providers)
static void	setTerminalOverride(Terminal terminal)	Deprecated.
TerminalBuilder	signalHandler(Terminal.SignalHandler signalHandler)
TerminalBuilder	size(Size size)	Initial size to use when creating a non system terminal, i.e.
TerminalBuilder	streams(InputStream in, OutputStream out)
TerminalBuilder	system(boolean system)
TerminalBuilder	systemOutput(TerminalBuilder.SystemOutput systemOutput)	Indicates which standard stream should be used when displaying to the terminal.
static Terminal	terminal()	Returns the default system terminal.
TerminalBuilder	type(String type)

Methods inherited from class java.lang.Object

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

Field Details

PROP_ENCODING

public static final String PROP_ENCODING

See Also:

• Constant Field Values

PROP_CODEPAGE

public static final String PROP_CODEPAGE

See Also:

• Constant Field Values

PROP_TYPE

public static final String PROP_TYPE

See Also:

• Constant Field Values

PROP_PROVIDER

public static final String PROP_PROVIDER

See Also:

• Constant Field Values

PROP_PROVIDERS

public static final String PROP_PROVIDERS

See Also:

• Constant Field Values

PROP_PROVIDER_FFM

public static final String PROP_PROVIDER_FFM

See Also:

• Constant Field Values

PROP_PROVIDER_JNI

public static final String PROP_PROVIDER_JNI

See Also:

• Constant Field Values

PROP_PROVIDER_JANSI

public static final String PROP_PROVIDER_JANSI

See Also:

• Constant Field Values

PROP_PROVIDER_JNA

public static final String PROP_PROVIDER_JNA

See Also:

• Constant Field Values

PROP_PROVIDER_EXEC

public static final String PROP_PROVIDER_EXEC

See Also:

• Constant Field Values

PROP_PROVIDER_DUMB

public static final String PROP_PROVIDER_DUMB

See Also:

• Constant Field Values

PROP_PROVIDERS_DEFAULT

public static final String PROP_PROVIDERS_DEFAULT

PROP_FFM

public static final String PROP_FFM

See Also:

• Constant Field Values

PROP_JNI

public static final String PROP_JNI

See Also:

• Constant Field Values

PROP_JANSI

public static final String PROP_JANSI

See Also:

• Constant Field Values

PROP_JNA

public static final String PROP_JNA

See Also:

• Constant Field Values

PROP_EXEC

public static final String PROP_EXEC

See Also:

• Constant Field Values

PROP_DUMB

public static final String PROP_DUMB

See Also:

• Constant Field Values

PROP_DUMB_COLOR

public static final String PROP_DUMB_COLOR

See Also:

• Constant Field Values

PROP_OUTPUT

public static final String PROP_OUTPUT

See Also:

• Constant Field Values

PROP_OUTPUT_OUT

public static final String PROP_OUTPUT_OUT

See Also:

• Constant Field Values

PROP_OUTPUT_ERR

public static final String PROP_OUTPUT_ERR

See Also:

• Constant Field Values

PROP_OUTPUT_OUT_ERR

public static final String PROP_OUTPUT_OUT_ERR

See Also:

• Constant Field Values

PROP_OUTPUT_ERR_OUT

public static final String PROP_OUTPUT_ERR_OUT

See Also:

• Constant Field Values

PROP_OUTPUT_FORCED_OUT

public static final String PROP_OUTPUT_FORCED_OUT

See Also:

• Constant Field Values

PROP_OUTPUT_FORCED_ERR

public static final String PROP_OUTPUT_FORCED_ERR

See Also:

• Constant Field Values

PROP_NON_BLOCKING_READS

public static final String PROP_NON_BLOCKING_READS

See Also:

• Constant Field Values

PROP_COLOR_DISTANCE

public static final String PROP_COLOR_DISTANCE

See Also:

• Constant Field Values

PROP_DISABLE_ALTERNATE_CHARSET

public static final String PROP_DISABLE_ALTERNATE_CHARSET

See Also:

• Constant Field Values

PROP_FILE_DESCRIPTOR_CREATION_MODE

public static final String PROP_FILE_DESCRIPTOR_CREATION_MODE

See Also:

• Constant Field Values

PROP_FILE_DESCRIPTOR_CREATION_MODE_NATIVE

public static final String PROP_FILE_DESCRIPTOR_CREATION_MODE_NATIVE

See Also:

• Constant Field Values

PROP_FILE_DESCRIPTOR_CREATION_MODE_REFLECTION

public static final String PROP_FILE_DESCRIPTOR_CREATION_MODE_REFLECTION

See Also:

• Constant Field Values

PROP_FILE_DESCRIPTOR_CREATION_MODE_DEFAULT

public static final String PROP_FILE_DESCRIPTOR_CREATION_MODE_DEFAULT

PROP_REDIRECT_PIPE_CREATION_MODE

public static final String PROP_REDIRECT_PIPE_CREATION_MODE

See Also:

• Constant Field Values

PROP_REDIRECT_PIPE_CREATION_MODE_NATIVE

public static final String PROP_REDIRECT_PIPE_CREATION_MODE_NATIVE

See Also:

• Constant Field Values

PROP_REDIRECT_PIPE_CREATION_MODE_REFLECTION

public static final String PROP_REDIRECT_PIPE_CREATION_MODE_REFLECTION

See Also:

• Constant Field Values

PROP_REDIRECT_PIPE_CREATION_MODE_DEFAULT

public static final String PROP_REDIRECT_PIPE_CREATION_MODE_DEFAULT

Method Details

terminal

public static Terminal terminal()
                         throws IOException

Returns the default system terminal. Terminals should be closed properly using the Closeable.close() method in order to restore the original terminal state.

This call is equivalent to: builder().build()

Returns:

the default system terminal

Throws:

IOException - if an error occurs

builder

public static TerminalBuilder builder()

Creates a new terminal builder instance.

Returns:

a builder

name

public TerminalBuilder name(String name)

streams

public TerminalBuilder streams(InputStream in,
 OutputStream out)

system

public TerminalBuilder system(boolean system)

systemOutput

public TerminalBuilder systemOutput(TerminalBuilder.SystemOutput systemOutput)

Indicates which standard stream should be used when displaying to the terminal. The default is to use the system output stream. Building a system terminal will fail if one of the stream specified is not linked to the controlling terminal.

Parameters:

systemOutput - The mode to choose the output stream.

Returns:

The builder.

provider

public TerminalBuilder provider(String provider)

providers

public TerminalBuilder providers(String providers)

jna

public TerminalBuilder jna(boolean jna)

jansi

public TerminalBuilder jansi(boolean jansi)

jni

public TerminalBuilder jni(boolean jni)

exec

public TerminalBuilder exec(boolean exec)

ffm

public TerminalBuilder ffm(boolean ffm)

dumb

public TerminalBuilder dumb(boolean dumb)

type

public TerminalBuilder type(String type)

color

public TerminalBuilder color(boolean color)

encoding

public TerminalBuilder encoding(String encoding)
                         throws UnsupportedCharsetException

Set the encoding to use for reading/writing from the console. If null (the default value), JLine will automatically select a Charset, usually the default system encoding. However, on some platforms (e.g. Windows) it may use a different one depending on the Terminal implementation.

Use Terminal.encoding() to get the Charset that should be used for a Terminal.

Parameters:

encoding - The encoding to use or null to automatically select one

Returns:

The builder

Throws:

UnsupportedCharsetException - If the given encoding is not supported

See Also:

• Terminal.encoding()

encoding

public TerminalBuilder encoding(Charset encoding)

Set the Charset to use for reading/writing from the console. If null (the default value), JLine will automatically select a Charset, usually the default system encoding. However, on some platforms (e.g. Windows) it may use a different one depending on the Terminal implementation.

Use Terminal.encoding() to get the Charset that should be used to read/write from a Terminal.

Parameters:

encoding - The encoding to use or null to automatically select one

Returns:

The builder

See Also:

• Terminal.encoding()

codepage

@Deprecated
public TerminalBuilder codepage(int codepage)

Deprecated.

JLine now writes Unicode output independently from the selected code page. Using this option will only make it emulate the selected code page for Terminal.input() and Terminal.output().

Parameters:

codepage - the codepage

Returns:

The builder

attributes

public TerminalBuilder attributes(Attributes attributes)

Attributes to use when creating a non system terminal, i.e. when the builder has been given the input and output streams using the streams(InputStream, OutputStream) method or when system(boolean) has been explicitly called with false.

Parameters:

attributes - the attributes to use

Returns:

The builder

See Also:

• size(Size)
• system(boolean)

size

public TerminalBuilder size(Size size)

Initial size to use when creating a non system terminal, i.e. when the builder has been given the input and output streams using the streams(InputStream, OutputStream) method or when system(boolean) has been explicitly called with false.

Parameters:

size - the initial size

Returns:

The builder

See Also:

• attributes(Attributes)
• system(boolean)

nativeSignals

public TerminalBuilder nativeSignals(boolean nativeSignals)

signalHandler

public TerminalBuilder signalHandler(Terminal.SignalHandler signalHandler)

paused

public TerminalBuilder paused(boolean paused)

Initial paused state of the terminal (defaults to false). By default, the terminal is started, but in some cases, one might want to make sure the input stream is not consumed before needed, in which case the terminal needs to be created in a paused state.

Parameters:

paused - the initial paused state

Returns:

The builder

See Also:

• Terminal.pause()

build

public Terminal build()
               throws IOException

Throws:

IOException

computeSystemOutput

public TerminalBuilder.SystemOutput computeSystemOutput()

computeType

public String computeType()

computeEncoding

public Charset computeEncoding()

getProviders

public List<TerminalProvider> getProviders(String provider,
 IllegalStateException exception)

setTerminalOverride

@Deprecated
public static void setTerminalOverride(Terminal terminal)

Deprecated.

Allows an application to override the result of build(). The intended use case is to allow a container or server application to control an embedded application that uses a LineReader that uses Terminal constructed with TerminalBuilder.build but provides no public api for setting the LineReader of the Terminal. For example, the sbt build tool uses a LineReader to implement an interactive shell. One of its supported commands is console which invokes the scala REPL. The scala REPL also uses a LineReader and it is necessary to override the Terminal used by the the REPL to share the same Terminal instance used by sbt.

When this method is called with a non-null Terminal, all subsequent calls to build() will return the provided Terminal regardless of how the TerminalBuilder was constructed. The default behavior of TerminalBuilder can be restored by calling setTerminalOverride with a null Terminal

Usage of setTerminalOverride should be restricted to cases where it isn't possible to update the api of the nested application to accept a instance.

Parameters:

terminal - the Terminal to globally override