org.apache.commons.cli
Class TypeHandler

java.lang.Object
  org.apache.commons.cli.TypeHandler

public class TypeHandler
extends Object

This is a temporary implementation. TypeHandler will handle the pluggableness of OptionTypes and it will direct all of these types of conversion functionalities to ConvertUtils component in Commons already. BeanUtils I think.

Version:

$Revision: 741425 $, $Date: 2009-02-05 22:10:54 -0800 (Thu, 05 Feb 2009) $

Constructor Summary

TypeHandler()

Method Summary

static Class	createClass(String classname) Returns the class whose name is classname.
static Date	createDate(String str) Returns the date represented by str.
static File	createFile(String str) Returns the File represented by str.
static File[]	createFiles(String str) Returns the File[] represented by str.
static Number	createNumber(String str) Create a number from a String.
static Object	createObject(String classname) Create an Object from the classname and empty constructor.
static URL	createURL(String str) Returns the URL represented by str.
static Object	createValue(String str, Class clazz) Returns the Object of type clazz with the value of str.
static Object	createValue(String str, Object obj) Returns the Object of type obj with the value of str.

Methods inherited from class java.lang.Object

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

Constructor Detail

TypeHandler

public TypeHandler()

Method Detail

createValue

public static Object createValue(String str,
                                 Object obj)
                          throws ParseException

Returns the Object of type obj with the value of str.

Parameters:

str - the command line value

obj - the type of argument

Returns:

The instance of obj initialised with the value of str.

Throws:

ParseException

createValue

public static Object createValue(String str,
                                 Class clazz)
                          throws ParseException

Returns the Object of type clazz with the value of str.

Parameters:

str - the command line value

clazz - the type of argument

Returns:

The instance of clazz initialised with the value of str.

Throws:

ParseException

createObject

public static Object createObject(String classname)
                           throws ParseException

Create an Object from the classname and empty constructor.

Parameters:

classname - the argument value

Returns:

the initialised object, or null if it couldn't create the Object.

Throws:

ParseException

createNumber

public static Number createNumber(String str)
                           throws ParseException

Create a number from a String. If a . is present, it creates a Double, otherwise a Long.

Parameters:

str - the value

Returns:

the number represented by str, if str is not a number, null is returned.

Throws:

ParseException

createClass

public static Class createClass(String classname)
                         throws ParseException

Returns the class whose name is classname.

Parameters:

classname - the class name

Returns:

The class if it is found, otherwise return null

Throws:

ParseException

createDate

public static Date createDate(String str)
                       throws ParseException

Returns the date represented by str.

Parameters:

str - the date string

Returns:

The date if str is a valid date string, otherwise return null.

Throws:

ParseException

createURL

public static URL createURL(String str)
                     throws ParseException

Returns the URL represented by str.

Parameters:

str - the URL string

Returns:

The URL is str is well-formed, otherwise return null.

Throws:

ParseException

createFile

public static File createFile(String str)
                       throws ParseException

Returns the File represented by str.

Parameters:

str - the File location

Returns:

The file represented by str.

Throws:

ParseException

createFiles

public static File[] createFiles(String str)
                          throws ParseException

Returns the File[] represented by str.

Parameters:

str - the paths to the files

Returns:

The File[] represented by str.

Throws:

ParseException