org.springframework.boot.cli.command

Class CommandRunner

java.lang.Object

org.springframework.boot.cli.command.CommandRunner

All Implemented Interfaces:

Iterable<Command>

public class CommandRunner
extends Object
implements Iterable<Command>

Main class used to run Commands.

Author:

Phillip Webb

See Also:

addCommand(Command), runAndHandleErrors(String[])

Constructor Summary

Constructors

Constructor and Description
CommandRunner(String name) Create a new CommandRunner instance.

Method Summary

Modifier and Type	Method and Description
void	addCommand(Command command) Add the specified command.
void	addCommands(Iterable<Command> commands) Add the specified commands.
protected void	afterRun(Command command) Subclass hook called after a command has run.
protected void	beforeRun(Command command) Subclass hook called before a command is run.
protected boolean	errorMessage(String message)
Command	findCommand(String name) Find a command by name.
protected List<Command>	getCommands()
String	getName() Return the name of the runner or an empty string.
boolean	isOptionCommand(Command command) Returns if the specified command is an option command.
Iterator<Command>	iterator()
protected void	printStackTrace(Exception ex)
protected ExitStatus	run(String... args) Parse the arguments and run a suitable command.
int	runAndHandleErrors(String... args) Run the appropriate and handle and errors.
void	setHiddenCommands(Class<?>... commandClasses) Set the command classes which should be hidden (i.e.
void	setOptionCommands(Class<?>... commandClasses) Set the command classes which should be considered option commands.
protected void	showUsage()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

CommandRunner

public CommandRunner(String name)

Create a new CommandRunner instance.

Parameters:

name - the name of the runner or null

Method Detail

getName

public String getName()

Return the name of the runner or an empty string. Non-empty names will include a trailing space character so that they can be used as a prefix.

Returns:

the name of the runner

addCommands

public void addCommands(Iterable<Command> commands)

Add the specified commands.

Parameters:

commands - the commands to add

addCommand

public void addCommand(Command command)

Add the specified command.

Parameters:

command - the command to add.

setOptionCommands

public void setOptionCommands(Class<?>... commandClasses)

Set the command classes which should be considered option commands. An option command is a special type of command that usually makes more sense to present as if it is an option. For example '--version'.

Parameters:

commandClasses - the classes of option commands.

See Also:

isOptionCommand(Command)

setHiddenCommands

public void setHiddenCommands(Class<?>... commandClasses)

Set the command classes which should be hidden (i.e. executed but not displayed in the available commands list).

Parameters:

commandClasses - the classes of hidden commands

isOptionCommand

public boolean isOptionCommand(Command command)

Returns if the specified command is an option command.

Parameters:

command - the command to test

Returns:

true if the command is an option command

See Also:

setOptionCommands(Class...)

iterator

public Iterator<Command> iterator()

Specified by:

iterator in interface Iterable<Command>

getCommands

protected final List<Command> getCommands()

findCommand

public Command findCommand(String name)

Find a command by name.

Parameters:

name - the name of the command

Returns:

the command or null if not found

runAndHandleErrors

public int runAndHandleErrors(String... args)

Run the appropriate and handle and errors.

Parameters:

args - the input arguments

Returns:

a return status code (non boot is used to indicate an error)

run

protected ExitStatus run(String... args)
                  throws Exception

Parse the arguments and run a suitable command.

Parameters:

args - the arguments

Returns:

the outcome of the command

Throws:

Exception - if the command fails

beforeRun

protected void beforeRun(Command command)

Subclass hook called before a command is run.

Parameters:

command - the command about to run

afterRun

protected void afterRun(Command command)

Subclass hook called after a command has run.

Parameters:

command - the command that has run

errorMessage

protected boolean errorMessage(String message)

showUsage

protected void showUsage()

printStackTrace

protected void printStackTrace(Exception ex)