picocli

Class CommandLine.RunAll

java.lang.Object

picocli.CommandLine.AbstractHandler<R,CommandLine.AbstractParseResultHandler<R>>

picocli.CommandLine.AbstractParseResultHandler<List<Object>>

picocli.CommandLine.RunAll

All Implemented Interfaces:

CommandLine.IExecutionStrategy, CommandLine.IParseResultHandler, CommandLine.IParseResultHandler2<List<Object>>

Enclosing class:

CommandLine

public static class CommandLine.RunAll
extends CommandLine.AbstractParseResultHandler<List<Object>>
implements CommandLine.IParseResultHandler

Command line execution strategy that prints help if requested, and otherwise executes the top-level command and all subcommands as Runnable, Callable or Method. For use by the execute method.

Since:

2.0

Constructor Summary

Constructors

Constructor and Description
RunAll()

Method Summary

Modifier and Type	Method and Description
int	execute(CommandLine.ParseResult parseResult) "Executes" the user input and returns an exit code.
protected List<CommandLine.IExitCodeGenerator>	extractExitCodeGenerators(CommandLine.ParseResult parseResult)
protected List<Object>	handle(CommandLine.ParseResult parseResult) Executes the top-level command and all subcommands as Runnable or Callable.
List<Object>	handleParseResult(List<CommandLine> parsedCommands, PrintStream out, CommandLine.Help.Ansi ansi) Prints help if requested, and otherwise executes the top-level command and all subcommands as Runnable, Callable or Method.
protected CommandLine.RunAll	self() Returns this to allow method chaining when calling the setters for a fluent API.

Methods inherited from class picocli.CommandLine.AbstractParseResultHandler

handleParseResult

Methods inherited from class picocli.CommandLine.AbstractHandler

andExit, ansi, colorScheme, err, exit, exitCode, hasExitCode, out, returnResultOrExit, throwOrExit, useAnsi, useErr, useOut

Methods inherited from class java.lang.Object

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

Constructor Detail

RunAll

public RunAll()

Method Detail

execute

public int execute(CommandLine.ParseResult parseResult)
            throws CommandLine.ExecutionException

"Executes" the user input and returns an exit code. Execution often means invoking a method on the selected CommandSpec's user object, and making the return value of that invocation available via setExecutionResult.

Specified by:

execute in interface CommandLine.IExecutionStrategy

Overrides:

execute in class CommandLine.AbstractParseResultHandler<List<Object>>

Parameters:

parseResult - the parse result from which to select one or more CommandSpec instances to execute.

Returns:

an exit code

Throws:

CommandLine.ExecutionException - if any problem occurred while executing the command. Any exceptions (other than ParameterException) should be wrapped in a ExecutionException and not thrown as is.

handleParseResult

public List<Object> handleParseResult(List<CommandLine> parsedCommands,
                                      PrintStream out,
                                      CommandLine.Help.Ansi ansi)

Prints help if requested, and otherwise executes the top-level command and all subcommands as Runnable, Callable or Method. Finally, either a list of result objects is returned, or the JVM is terminated if an exit code was set. If any of the CommandLine commands does not implement either Runnable or Callable, an ExecutionException is thrown detailing the problem and capturing the offending CommandLine object.

Specified by:

handleParseResult in interface CommandLine.IParseResultHandler

Parameters:

parsedCommands - the CommandLine objects that resulted from successfully parsing the command line arguments

out - the PrintStream to print help to if requested

ansi - for printing help messages using ANSI styles and colors

Returns:

an empty list if help was requested, or a list containing the result of executing all commands: the return values from calling the Callable commands, null elements for commands that implement Runnable

Throws:

CommandLine.ParameterException - if the HelpCommand was invoked for an unknown subcommand. Any ParameterExceptions thrown from this method are treated as if this exception was thrown during parsing and passed to the CommandLine.IExceptionHandler

CommandLine.ExecutionException - if a problem occurred while processing the parse results; use CommandLine.ExecutionException.getCommandLine() to get the command or subcommand where processing failed

handle

protected List<Object> handle(CommandLine.ParseResult parseResult)
                       throws CommandLine.ExecutionException

Executes the top-level command and all subcommands as Runnable or Callable. If any of the CommandLine commands does not implement either Runnable or Callable and is not a Method, an ExecutionException is thrown detailing the problem and capturing the offending CommandLine object.

Specified by:

handle in class CommandLine.AbstractParseResultHandler<List<Object>>

Parameters:

parseResult - the ParseResult that resulted from successfully parsing the command line arguments

Returns:

an empty list if help was requested, or a list containing the result of executing all commands: the return values from calling the Callable commands, null elements for commands that implement Runnable

Throws:

CommandLine.ExecutionException - if a problem occurred while processing the parse results; use CommandLine.ExecutionException.getCommandLine() to get the command or subcommand where processing failed

Since:

3.0

extractExitCodeGenerators

protected List<CommandLine.IExitCodeGenerator> extractExitCodeGenerators(CommandLine.ParseResult parseResult)

Overrides:

extractExitCodeGenerators in class CommandLine.AbstractParseResultHandler<List<Object>>

self

protected CommandLine.RunAll self()

Description copied from class: CommandLine.AbstractHandler

Returns this to allow method chaining when calling the setters for a fluent API.

Specified by:

self in class CommandLine.AbstractHandler<List<Object>,CommandLine.AbstractParseResultHandler<List<Object>>>