org.mortbay.util
Class TypeUtil

java.lang.Object
  |
  +--org.mortbay.util.TypeUtil

Direct Known Subclasses:

Primitive

public class TypeUtil

extends java.lang.Object

TYPE Utilities. Provides various static utiltiy methods for manipulating types and their string representations.

Since:

Jetty 4.1

Version:

$Revision: 1.8 $

Author:

Greg Wilkins (gregw)

Constructor Summary

TypeUtil()

Method Summary

static byte	convertHexDigit(byte b)
static byte[]	fromHexString(java.lang.String s)
static java.lang.Class	fromName(java.lang.String name) Class from a canonical name for a type.
static java.lang.Integer	newInteger(int i) Convert int to Integer using cache.
static byte[]	parseBytes(java.lang.String s, int base)
static int	parseInt(java.lang.String s, int offset, int length, int base) Parse an int from a substring.
static java.lang.String	toHexString(byte[] b)
static java.lang.String	toHexString(byte[] b, int offset, int length)
static java.lang.String	toName(java.lang.Class type) Canonical name for a type.
static java.lang.String	toString(byte[] bytes, int base)
static java.lang.String	toString(int i) Convert int to String using cache.
static java.lang.Object	valueOf(java.lang.Class type, java.lang.String value) Convert String value to instance.
static java.lang.Object	valueOf(java.lang.String type, java.lang.String value) Convert String value to instance.

Methods inherited from class java.lang.Object

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

Constructor Detail

TypeUtil

public TypeUtil()

Method Detail

fromName

public static java.lang.Class fromName(java.lang.String name)

Class from a canonical name for a type.

Parameters:

name - A class or type name.

Returns:

A class , which may be a primitive TYPE field..

toName

public static java.lang.String toName(java.lang.Class type)

Canonical name for a type.

Parameters:

type - A class , which may be a primitive TYPE field.

Returns:

Canonical name.

valueOf

public static java.lang.Object valueOf(java.lang.Class type,
                                       java.lang.String value)

Convert String value to instance.

Parameters:

type - The class of the instance, which may be a primitive TYPE field.

value - The value as a string.

Returns:

The value as an Object.

valueOf

public static java.lang.Object valueOf(java.lang.String type,
                                       java.lang.String value)

Convert String value to instance.

Parameters:

type - classname or type (eg int)

value - The value as a string.

Returns:

The value as an Object.

newInteger

public static java.lang.Integer newInteger(int i)

Convert int to Integer using cache.

toString

public static java.lang.String toString(int i)

Convert int to String using cache.

parseInt

public static int parseInt(java.lang.String s,
                           int offset,
                           int length,
                           int base)
                    throws java.lang.NumberFormatException

Parse an int from a substring. Negative numbers are not handled.

Parameters:

s - String

offset - Offset within string

length - Length of integer or -1 for remainder of string

base - base of the integer

Throws:

java.lang.NumberFormatException

parseBytes

public static byte[] parseBytes(java.lang.String s,
                                int base)

toString

public static java.lang.String toString(byte[] bytes,
                                        int base)

convertHexDigit

public static byte convertHexDigit(byte b)

Parameters:

b - An ASCII encoded character 0-9 a-f A-F

Returns:

The byte value of the character 0-16.

toHexString

public static java.lang.String toHexString(byte[] b)

toHexString

public static java.lang.String toHexString(byte[] b,
                                           int offset,
                                           int length)

fromHexString

public static byte[] fromHexString(java.lang.String s)