org.mortbay.util
Class TypeUtil

java.lang.Object
  org.mortbay.util.TypeUtil

public class TypeUtil
extends Object

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

Since:

Jetty 4.1

Author:

Greg Wilkins (gregw)

Field Summary

private static HashMap	class2Name
private static HashMap	class2Value
static int	CR
private static int	intCacheSize
private static Integer[]	integerCache
private static String[]	integerStrCache
static int	LF
private static Integer	minusOne
private static HashMap	name2Class
private static Class[]	stringArg

Constructor Summary

TypeUtil()

Method Summary

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 byte[]	readLine(InputStream in)
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

Field Detail

CR

public static int CR

LF

public static int LF

name2Class

private static final HashMap name2Class

class2Name

private static final HashMap class2Name

class2Value

private static final HashMap class2Value

stringArg

private static Class[] stringArg

intCacheSize

private static int intCacheSize

integerCache

private static Integer[] integerCache

integerStrCache

private static String[] integerStrCache

minusOne

private static Integer minusOne

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.

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)

readLine

public static byte[] readLine(InputStream in)
                       throws IOException

Throws:

IOException