Package org.jboss.as.cli.impl

Class ReadlineConsole

java.lang.Object

org.jboss.as.cli.impl.ReadlineConsole

public class ReadlineConsole
extends Object

Integration point with aesh-readline. There are multiple paths when the CLI exits.

• quit command: Command ctx is terminated, console is closed, terminal connection reading thread is interrupted, Main thread exit, jvm exit handlers are called
• Ctrl-C: can be received as an OS signal or parsed by aesh. In both cases interruptHandler is called, the connection is closed, terminal connection reading thread is interrupted, Main thread exit, jvm exit handlers are called. If a prompt is in progress, the reading thread will be interrupted too.
• Ctrl-D (without characters typed): Only parsed by aesh, no native signal raised. In both cases, the connection is closed by aesh, terminal connection reading thread is interrupted, Main thread exit, jvm exit handlers are called. If a prompt is in progress, the reading thread will be interrupted too. Because Ctrl-D is not a native signal, it can't be handled during the execution of a command. Only Ctrl-C can be used to interrupt the CLI.

Author:

jdenise@redhat.com

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	ReadlineConsole.Settings
static class	ReadlineConsole.SettingsBuilder

Method Summary

Modifier and Type	Method	Description
void	addCompleter(org.aesh.readline.completion.Completion<? extends org.aesh.readline.completion.CompleteOperation> completer)
void	clearScreen()
void	forcePagingOutput(boolean forcePaging)
String	formatColumns(Collection<String> list)
org.aesh.terminal.Connection	getConnection()
CommandHistory	getHistory()
org.aesh.readline.Prompt	getPrompt()
int	getTerminalHeight()
int	getTerminalWidth()
String	handleBuiltins(String line)
boolean	isPagingOutputActive()
boolean	isPagingOutputEnabled()	Public for testing purpose only.
void	print(String line, boolean collect)
void	printNewLine(boolean collect)
int[]	read()
org.aesh.readline.terminal.Key	readKey()
String	readLine(String prompt)
String	readLine(String prompt, Character mask)	Prompt a user.
String	readLine(org.aesh.readline.Prompt prompt)
String	readLine(org.aesh.readline.Prompt prompt, org.aesh.readline.completion.Completion completer)
boolean	running()
void	setActionCallback(Consumer<String> callback)
void	setCompletionHandler(org.aesh.readline.completion.CompletionHandler<? extends org.aesh.readline.completion.CompleteOperation> ch)	This has the side effect to create the internal readline instance.
void	setPrompt(String prompt)
void	setPrompt(org.aesh.readline.Prompt prompt)
void	start()
void	stop()

Methods inherited from class java.lang.Object

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

Method Detail

setActionCallback

public void setActionCallback(Consumer<String> callback)

setCompletionHandler

public void setCompletionHandler(org.aesh.readline.completion.CompletionHandler<? extends org.aesh.readline.completion.CompleteOperation> ch)

This has the side effect to create the internal readline instance.

Parameters:

ch - The Completion Handler.

addCompleter

public void addCompleter(org.aesh.readline.completion.Completion<? extends org.aesh.readline.completion.CompleteOperation> completer)

getHistory

public CommandHistory getHistory()

clearScreen

public void clearScreen()

formatColumns

public String formatColumns(Collection<String> list)

print

public void print(String line,
                  boolean collect)

readKey

public org.aesh.readline.terminal.Key readKey()
                                       throws InterruptedException,
                                              IOException

Throws:

InterruptedException

IOException

read

public int[] read()
           throws InterruptedException,
                  IOException

Throws:

InterruptedException

IOException

printNewLine

public void printNewLine(boolean collect)

readLine

public String readLine(String prompt)
                throws IOException,
                       InterruptedException

Throws:

IOException

InterruptedException

readLine

public String readLine(String prompt,
                       Character mask)
                throws InterruptedException,
                       IOException

Prompt a user. The complexity of this method is implied by the Ctrl-C handling. When Ctrl-C occurs, the Exit hook will call this.close that interrupts the thread calling this operation.

We have 2 cases.

1) prompting prior to have started the console: - Must start a new connection. - Make it non blocking. - Wait on latch to resync and to catch Thread.interrupt.

2) prompting after to have started the console: - No need to open the connection. - Wait on latch to resync and to catch Thread.interrupt.

Parameters:

prompt -

mask -

Returns:

Throws:

IOException

InterruptedException

readLine

public String readLine(org.aesh.readline.Prompt prompt)
                throws InterruptedException,
                       IOException

Throws:

InterruptedException

IOException

readLine

public String readLine(org.aesh.readline.Prompt prompt,
                       org.aesh.readline.completion.Completion completer)
                throws InterruptedException,
                       IOException

Throws:

InterruptedException

IOException

getTerminalWidth

public int getTerminalWidth()

getTerminalHeight

public int getTerminalHeight()

start

public void start()
           throws IOException

Throws:

IOException

stop

public void stop()

running

public boolean running()

setPrompt

public void setPrompt(String prompt)

setPrompt

public void setPrompt(org.aesh.readline.Prompt prompt)

isPagingOutputEnabled

public boolean isPagingOutputEnabled()

Public for testing purpose only.

Returns:

isPagingOutputActive

public boolean isPagingOutputActive()

forcePagingOutput

public void forcePagingOutput(boolean forcePaging)

getPrompt

public org.aesh.readline.Prompt getPrompt()

getConnection

public org.aesh.terminal.Connection getConnection()

handleBuiltins

public String handleBuiltins(String line)