Package org.apache.commons.cli

Class CommandLine

java.lang.Object

org.apache.commons.cli.CommandLine

All Implemented Interfaces:

java.io.Serializable

public class CommandLine
extends java.lang.Object
implements java.io.Serializable

Represents list of arguments parsed against a Options descriptor.

It allows querying of a boolean hasOption(String opt), in addition to retrieving the getOptionValue(String opt) for options requiring arguments.

Additionally, any left-over or unrecognized arguments, are available for further processing.

Version:

$Id: CommandLine.java 1786144 2017-03-09 11:34:57Z britter $

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	CommandLine.Builder	A nested builder class to create CommandLine instance using descriptive methods.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	CommandLine()	Creates a command line.

Method Summary

Modifier and Type	Method	Description
protected void	addArg(java.lang.String arg)	Add left-over unrecognized option/argument.
protected void	addOption(Option opt)	Add an option to the command line.
java.util.List<java.lang.String>	getArgList()	Retrieve any left-over non-recognized options and arguments
java.lang.String[]	getArgs()	Retrieve any left-over non-recognized options and arguments
java.lang.Object	getOptionObject(char opt)	Return the Object type of this Option.
java.lang.Object	getOptionObject(java.lang.String opt)	Deprecated. due to System.err message. Instead use getParsedOptionValue(String)
java.util.Properties	getOptionProperties(java.lang.String opt)	Retrieve the map of values associated to the option.
Option[]	getOptions()	Returns an array of the processed Options.
java.lang.String	getOptionValue(char opt)	Retrieve the first argument, if any, of this option.
java.lang.String	getOptionValue(char opt, java.lang.String defaultValue)	Retrieve the argument, if any, of an option.
java.lang.String	getOptionValue(java.lang.String opt)	Retrieve the first argument, if any, of this option.
java.lang.String	getOptionValue(java.lang.String opt, java.lang.String defaultValue)	Retrieve the first argument, if any, of an option.
java.lang.String[]	getOptionValues(char opt)	Retrieves the array of values, if any, of an option.
java.lang.String[]	getOptionValues(java.lang.String opt)	Retrieves the array of values, if any, of an option.
java.lang.Object	getParsedOptionValue(java.lang.String opt)	Return a version of this Option converted to a particular type.
boolean	hasOption(char opt)	Query to see if an option has been set.
boolean	hasOption(java.lang.String opt)	Query to see if an option has been set.
java.util.Iterator<Option>	iterator()	Returns an iterator over the Option members of CommandLine.

Methods inherited from class java.lang.Object

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

Constructor Detail

CommandLine

protected CommandLine()

Creates a command line.

Method Detail

hasOption

public boolean hasOption(java.lang.String opt)

Query to see if an option has been set.

Parameters:

opt - Short name of the option

Returns:

true if set, false if not

hasOption

public boolean hasOption(char opt)

Query to see if an option has been set.

Parameters:

opt - character name of the option

Returns:

true if set, false if not

getOptionObject

@Deprecated
public java.lang.Object getOptionObject(java.lang.String opt)

Deprecated. due to System.err message. Instead use getParsedOptionValue(String)

Return the Object type of this Option.

Parameters:

opt - the name of the option

Returns:

the type of this Option

getParsedOptionValue

public java.lang.Object getParsedOptionValue(java.lang.String opt)
                                      throws ParseException

Return a version of this Option converted to a particular type.

Parameters:

opt - the name of the option

Returns:

the value parsed into a particular object

Throws:

ParseException - if there are problems turning the option value into the desired type

Since:

1.2

See Also:

PatternOptionBuilder

getOptionObject

public java.lang.Object getOptionObject(char opt)

Return the Object type of this Option.

Parameters:

opt - the name of the option

Returns:

the type of opt

getOptionValue

public java.lang.String getOptionValue(java.lang.String opt)

Retrieve the first argument, if any, of this option.

Parameters:

opt - the name of the option

Returns:

Value of the argument if option is set, and has an argument, otherwise null.

getOptionValue

public java.lang.String getOptionValue(char opt)

Retrieve the first argument, if any, of this option.

Parameters:

opt - the character name of the option

Returns:

Value of the argument if option is set, and has an argument, otherwise null.

getOptionValues

public java.lang.String[] getOptionValues(java.lang.String opt)

Retrieves the array of values, if any, of an option.

Parameters:

opt - string name of the option

Returns:

Values of the argument if option is set, and has an argument, otherwise null.

getOptionValues

public java.lang.String[] getOptionValues(char opt)

Retrieves the array of values, if any, of an option.

Parameters:

opt - character name of the option

Returns:

Values of the argument if option is set, and has an argument, otherwise null.

getOptionValue

public java.lang.String getOptionValue(java.lang.String opt,
                                       java.lang.String defaultValue)

Retrieve the first argument, if any, of an option.

Parameters:

opt - name of the option

defaultValue - is the default value to be returned if the option is not specified

Returns:

Value of the argument if option is set, and has an argument, otherwise defaultValue.

getOptionValue

public java.lang.String getOptionValue(char opt,
                                       java.lang.String defaultValue)

Retrieve the argument, if any, of an option.

Parameters:

opt - character name of the option

defaultValue - is the default value to be returned if the option is not specified

Returns:

Value of the argument if option is set, and has an argument, otherwise defaultValue.

getOptionProperties

public java.util.Properties getOptionProperties(java.lang.String opt)

Retrieve the map of values associated to the option. This is convenient for options specifying Java properties like -Dparam1=value1 -Dparam2=value2. The first argument of the option is the key, and the 2nd argument is the value. If the option has only one argument (-Dfoo) it is considered as a boolean flag and the value is "true".

Parameters:

opt - name of the option

Returns:

The Properties mapped by the option, never null even if the option doesn't exists

Since:

1.2

getArgs

public java.lang.String[] getArgs()

Retrieve any left-over non-recognized options and arguments

Returns:

remaining items passed in but not parsed as an array

getArgList

public java.util.List<java.lang.String> getArgList()

Retrieve any left-over non-recognized options and arguments

Returns:

remaining items passed in but not parsed as a List.

addArg

protected void addArg(java.lang.String arg)

Add left-over unrecognized option/argument.

Parameters:

arg - the unrecognized option/argument.

addOption

protected void addOption(Option opt)

Add an option to the command line. The values of the option are stored.

Parameters:

opt - the processed option

iterator

public java.util.Iterator<Option> iterator()

Returns an iterator over the Option members of CommandLine.

Returns:

an Iterator over the processed Option members of this CommandLine

getOptions

public Option[] getOptions()

Returns an array of the processed Options.

Returns:

an array of the processed Options.