org.mortbay.util
Class TypeUtil

java.lang.Object
  extended by 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
static int CR
           
static int LF
           
 
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 URL jarFor(String className)
           
static Integer newInteger(int i)
          Convert int to Integer using cache.
static byte[] parseBytes(String s, int base)
           
static int parseInt(byte[] b, int offset, int length, int base)
          Parse an int from a byte array of ascii characters.
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 String toString(long i)
          Convert long 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
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.


toString

public static String toString(long i)
Convert long 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

parseInt

public static int parseInt(byte[] b,
                           int offset,
                           int length,
                           int base)
                    throws NumberFormatException
Parse an int from a byte array of ascii characters. Negative numbers are not handled.

Parameters:
b - byte array
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

jarFor

public static URL jarFor(String className)