org.apache.storm.command

Class CLI

java.lang.Object

org.apache.storm.command.CLI

public class CLI
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	CLI.Assoc
static class	CLI.CLIBuilder
static interface	CLI.Parse

Field Summary

Fields

Modifier and Type	Field and Description
static CLI.Parse	AS_INT Parse function to return an Integer.
static CLI.Parse	AS_STRING Noop parse function, returns the String.
static CLI.Assoc	FIRST_WINS First occurrence on the command line is the resulting value.
static CLI.Assoc	INTO_LIST All values are returned as a List.
static CLI.Assoc	INTO_MAP All values are returned as a map.
static CLI.Assoc	LAST_WINS Last occurrence on the command line is the resulting value.

Constructor Summary

Constructors

Constructor and Description
CLI()

Method Summary

Modifier and Type	Method and Description
static CLI.CLIBuilder	arg(String name) Add a named argument.
static CLI.CLIBuilder	arg(String name, CLI.Assoc assoc) Add a named argument.
static CLI.CLIBuilder	arg(String name, CLI.Parse parse) Add a named argument.
static CLI.CLIBuilder	arg(String name, CLI.Parse parse, CLI.Assoc assoc) Add a named argument.
static CLI.CLIBuilder	boolOpt(String shortName, String longName) Add a boolean option that enables something.
static CLI.CLIBuilder	opt(String shortName, String longName, Object defaultValue) Add an option to be parsed.
static CLI.CLIBuilder	opt(String shortName, String longName, Object defaultValue, CLI.Parse parse) Add an option to be parsed.
static CLI.CLIBuilder	opt(String shortName, String longName, Object defaultValue, CLI.Parse parse, CLI.Assoc assoc) Add an option to be parsed.
static CLI.CLIBuilder	optionalArg(String name) Add a named argument that is optional.
static CLI.CLIBuilder	optionalArg(String name, CLI.Assoc assoc) Add a named argument that is optional.
static CLI.CLIBuilder	optionalArg(String name, CLI.Parse parse) Add a named argument that is optional.
static CLI.CLIBuilder	optionalArg(String name, CLI.Parse parse, CLI.Assoc assoc) Add a named argument that is optional.

Methods inherited from class java.lang.Object

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

Field Detail

AS_INT

public static final CLI.Parse AS_INT

Parse function to return an Integer.

AS_STRING

public static final CLI.Parse AS_STRING

Noop parse function, returns the String.

LAST_WINS

public static final CLI.Assoc LAST_WINS

Last occurrence on the command line is the resulting value.

FIRST_WINS

public static final CLI.Assoc FIRST_WINS

First occurrence on the command line is the resulting value.

INTO_LIST

public static final CLI.Assoc INTO_LIST

All values are returned as a List.

INTO_MAP

public static final CLI.Assoc INTO_MAP

All values are returned as a map.

Constructor Detail

CLI

public CLI()

Method Detail

opt

public static CLI.CLIBuilder opt(String shortName,
                                 String longName,
                                 Object defaultValue)

Add an option to be parsed.

Parameters:

shortName - the short single character name of the option (no `-` character proceeds it).

longName - the multi character name of the option (no `--` characters proceed it).

defaultValue - the value that will be returned of the command if none is given. null if none is given.

Returns:

a builder to be used to continue creating the command line.

opt

public static CLI.CLIBuilder opt(String shortName,
                                 String longName,
                                 Object defaultValue,
                                 CLI.Parse parse)

Add an option to be parsed.

Parameters:

shortName - the short single character name of the option (no `-` character proceeds it).

longName - the multi character name of the option (no `--` characters proceed it).

defaultValue - the value that will be returned of the command if none is given. null if none is given.

parse - an optional function to transform the string to something else. If null a NOOP is used.

Returns:

a builder to be used to continue creating the command line.

opt

public static CLI.CLIBuilder opt(String shortName,
                                 String longName,
                                 Object defaultValue,
                                 CLI.Parse parse,
                                 CLI.Assoc assoc)

Add an option to be parsed.

Parameters:

shortName - the short single character name of the option (no `-` character proceeds it).

longName - the multi character name of the option (no `--` characters proceed it).

defaultValue - the value that will be returned of the command if none is given. null if none is given.

parse - an optional function to transform the string to something else. If null a NOOP is used.

assoc - an association command to decide what to do if the option appears multiple times. If null LAST_WINS is used.

Returns:

a builder to be used to continue creating the command line.

boolOpt

public static CLI.CLIBuilder boolOpt(String shortName,
                                     String longName)

Add a boolean option that enables something.

Parameters:

shortName - the short single character name of the option (no `-` character proceeds it).

longName - the multi character name of the option (no `--` characters proceed it).

Returns:

a builder to be used to continue creating the command line.

arg

public static CLI.CLIBuilder arg(String name)

Add a named argument.

Parameters:

name - the name of the argument.

Returns:

a builder to be used to continue creating the command line.

arg

public static CLI.CLIBuilder arg(String name,
                                 CLI.Assoc assoc)

Add a named argument.

Parameters:

name - the name of the argument.

assoc - an association command to decide what to do if the argument appears multiple times. If null INTO_LIST is used.

Returns:

a builder to be used to continue creating the command line.

arg

public static CLI.CLIBuilder arg(String name,
                                 CLI.Parse parse)

Add a named argument.

Parameters:

name - the name of the argument.

parse - an optional function to transform the string to something else. If null a NOOP is used.

Returns:

a builder to be used to continue creating the command line.

arg

public static CLI.CLIBuilder arg(String name,
                                 CLI.Parse parse,
                                 CLI.Assoc assoc)

Add a named argument.

Parameters:

name - the name of the argument.

parse - an optional function to transform the string to something else. If null a NOOP is used.

assoc - an association command to decide what to do if the argument appears multiple times. If null INTO_LIST is used.

Returns:

a builder to be used to continue creating the command line.

optionalArg

public static CLI.CLIBuilder optionalArg(String name)

Add a named argument that is optional.

Parameters:

name - the name of the argument.

Returns:

a builder to be used to continue creating the command line.

optionalArg

public static CLI.CLIBuilder optionalArg(String name,
                                         CLI.Assoc assoc)

Add a named argument that is optional.

Parameters:

name - the name of the argument.

assoc - an association command to decide what to do if the argument appears multiple times. If null INTO_LIST is used.

Returns:

a builder to be used to continue creating the command line.

optionalArg

public static CLI.CLIBuilder optionalArg(String name,
                                         CLI.Parse parse)

Add a named argument that is optional.

Parameters:

name - the name of the argument.

parse - an optional function to transform the string to something else. If null a NOOP is used.

Returns:

a builder to be used to continue creating the command line.

optionalArg

public static CLI.CLIBuilder optionalArg(String name,
                                         CLI.Parse parse,
                                         CLI.Assoc assoc)

Add a named argument that is optional.

Parameters:

name - the name of the argument.

parse - an optional function to transform the string to something else. If null a NOOP is used.

assoc - an association command to decide what to do if the argument appears multiple times. If null INTO_LIST is used.

Returns:

a builder to be used to continue creating the command line.