org.eclipse.jetty.util
类 TypeUtil

java.lang.Object
  org.eclipse.jetty.util.TypeUtil

public class TypeUtil
extends Object

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

从以下版本开始：

Jetty 4.1

字段摘要

static int	CR
static int	LF

构造方法摘要

TypeUtil()

方法摘要

static <T> List<T>	asList(T[] a) Array to List.
static Object	call(Class<?> oClass, String method, Object obj, Object[] arg)
static byte	convertHexDigit(byte c)
static int	convertHexDigit(int c)
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 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) 已过时。
static void	toHex(byte b, Appendable buf)
static void	toHex(int value, Appendable buf)
static void	toHex(long value, Appendable buf)
static String	toHexString(byte 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 Object	valueOf(Class<?> type, String value) Convert String value to instance.
static Object	valueOf(String type, String value) Convert String value to instance.

从类 java.lang.Object 继承的方法

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

字段详细信息

CR

public static int CR

LF

public static int LF

构造方法详细信息

TypeUtil

public TypeUtil()

方法详细信息

asList

public static <T> List<T> asList(T[] a)

Array to List.

Works like Arrays.asList(Object...), but handles null arrays.

返回：

a list backed by the array.

fromName

public static Class<?> fromName(String name)

Class from a canonical name for a type.

参数：

name - A class or type name.

返回：

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

toName

public static String toName(Class<?> type)

Canonical name for a type.

参数：

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

返回：

Canonical name.

valueOf

public static Object valueOf(Class<?> type,
                             String value)

Convert String value to instance.

参数：

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

value - The value as a string.

返回：

The value as an Object.

valueOf

public static Object valueOf(String type,
                             String value)

Convert String value to instance.

参数：

type - classname or type (eg int)

value - The value as a string.

返回：

The value as an Object.

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.

参数：

s - String

offset - Offset within string

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

base - base of the integer

返回：

the parsed integer

抛出：

NumberFormatException - if the string cannot be parsed

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.

参数：

b - byte array

offset - Offset within string

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

base - base of the integer

返回：

the parsed integer

抛出：

NumberFormatException - if the array cannot be parsed into an integer

parseBytes

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

toString

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

convertHexDigit

public static byte convertHexDigit(byte c)

参数：

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

返回：

The byte value of the character 0-16.

convertHexDigit

public static int convertHexDigit(int c)

参数：

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

返回：

The byte value of the character 0-16.

toHex

public static void toHex(byte b,
                         Appendable buf)

toHex

public static void toHex(int value,
                         Appendable buf)
                  throws IOException

抛出：

IOException

toHex

public static void toHex(long value,
                         Appendable buf)
                  throws IOException

抛出：

IOException

toHexString

public static String toHexString(byte 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)

readLine

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

已过时。

抛出：

IOException

jarFor

public static URL jarFor(String className)

call

public static Object call(Class<?> oClass,
                          String method,
                          Object obj,
                          Object[] arg)
                   throws InvocationTargetException,
                          NoSuchMethodException

抛出：

InvocationTargetException

NoSuchMethodException