org.openqa.jetty.util

Class TypeUtil

java.lang.Object

org.openqa.jetty.util.TypeUtil

Direct Known Subclasses:

Primitive

public class TypeUtil
extends Object

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

Since:

Jetty 4.1

Version:

$Revision: 1.14 $

Author:

Greg Wilkins (gregw)

Constructor Summary

Constructors

Constructor and Description
TypeUtil()

Method Summary

Methods

Modifier and Type	Method and Description
static byte	convertHexDigit(byte b)
static void	dump(Class c)
static void	dump(ClassLoader cl)
static byte[]	fromHexString(String s)
static Class	fromName(String name) Class from a canonical name for a type.
static Integer	newInteger(int i) Convert int to Integer using cache.
static byte[]	parseBytes(String s, int base)
static int	parseInt(String s, int offset, int length, int base) Parse an int from a substring.
static char	toHexChar(int b)
static String	toHexString(byte[] b)
static String	toHexString(byte[] b, int offset, int length)
static String	toName(Class type) Canonical name for a type.
static String	toString(byte[] bytes, int base)
static String	toString(int i) Convert int to String using cache.
static Object	valueOf(Class type, String value) Convert String value to instance.
static Object	valueOf(String type, String value) Convert String value to instance.

Methods inherited from class java.lang.Object

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

Constructor Detail

TypeUtil

public TypeUtil()

Method Detail

fromName

public static Class fromName(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 String toName(Class type)

Canonical name for a type.

Parameters:

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

Returns:

Canonical name.

valueOf

public static Object valueOf(Class type,
             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 Object valueOf(String type,
             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 Integer newInteger(int i)

Convert int to Integer using cache.

toString

public static String toString(int i)

Convert int to String using cache.

parseInt

public static int parseInt(String s,
           int offset,
           int length,
           int base)
                    throws 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:

NumberFormatException

parseBytes

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

toString

public static 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.

toHexChar

public static char toHexChar(int b)

toHexString

public static String toHexString(byte[] b)

toHexString

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

fromHexString

public static byte[] fromHexString(String s)

dump

public static void dump(Class c)

dump

public static void dump(ClassLoader cl)