org.glassfish.grizzly.http.util

Class Ascii

java.lang.Object

org.glassfish.grizzly.http.util.Ascii

public final class Ascii
extends java.lang.Object

This class implements some basic ASCII character handling functions.

Author:

dac@eng.sun.com, James Todd [gonzo@eng.sun.com]

Constructor Summary

Constructors

Constructor and Description
Ascii()

Method Summary

Modifier and Type	Method and Description
static void	intToHexString(Buffer buffer, int i)
static void	intToUnsignedString(Buffer buffer, int value, int shift) Convert the integer to an unsigned number.
static boolean	isAlpha(int c) Returns true if the specified ASCII character is upper or lower case.
static boolean	isDigit(int c) Returns true if the specified ASCII character is a digit.
static boolean	isLower(int c) Returns true if the specified ASCII character is lower case.
static boolean	isUpper(int c) Returns true if the specified ASCII character is upper case.
static boolean	isWhite(int c) Returns true if the specified ASCII character is white space.
static int	parseInt(Buffer b, int off, int len) Parses an unsigned int from the specified sub-array of bytes.
static int	parseInt(byte[] b, int off, int len) Parses an unsigned integer from the specified sub-array of bytes.
static int	parseInt(char[] b, int off, int len)
static int	parseInt(DataChunk dataChunk) Parses an unsigned integer from the specified DataChunk.
static int	parseInt(DataChunk dataChunk, int offset, int length) Parses an unsigned integer from the specified part of DataChunk.
static int	parseInt(java.lang.String s, int off, int len)
static long	parseLong(Buffer b, int off, int len) Parses an unsigned long from the specified sub-array of bytes.
static long	parseLong(byte[] b, int off, int len) Parses an unsigned long from the specified sub-array of bytes.
static long	parseLong(char[] b, int off, int len)
static long	parseLong(DataChunk dataChunk)
static long	parseLong(DataChunk dataChunk, int offset, int length)
static long	parseLong(java.lang.String s, int off, int len)
static void	toLower(byte[] bytes) Converts passed bytes (representing ASCII characters) to the lower case equivalent.
static int	toLower(int c) Returns the lower case equivalent of the specified ASCII character.
static void	toUpper(byte[] bytes) Converts passed bytes (representing ASCII characters) to the upper case equivalent.
static int	toUpper(int c) Returns the upper case equivalent of the specified ASCII character.

Methods inherited from class java.lang.Object

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

Constructor Detail

Ascii

public Ascii()

Method Detail

toUpper

public static int toUpper(int c)

Returns the upper case equivalent of the specified ASCII character.

toUpper

public static void toUpper(byte[] bytes)

Converts passed bytes (representing ASCII characters) to the upper case equivalent.

toLower

public static int toLower(int c)

Returns the lower case equivalent of the specified ASCII character.

toLower

public static void toLower(byte[] bytes)

Converts passed bytes (representing ASCII characters) to the lower case equivalent.

isAlpha

public static boolean isAlpha(int c)

Returns true if the specified ASCII character is upper or lower case.

isUpper

public static boolean isUpper(int c)

Returns true if the specified ASCII character is upper case.

isLower

public static boolean isLower(int c)

Returns true if the specified ASCII character is lower case.

isWhite

public static boolean isWhite(int c)

Returns true if the specified ASCII character is white space.

isDigit

public static boolean isDigit(int c)

Returns true if the specified ASCII character is a digit.

parseInt

public static int parseInt(DataChunk dataChunk)

Parses an unsigned integer from the specified DataChunk.

Parameters:

dataChunk - the DataChunk

Throws:

java.lang.NumberFormatException - if the integer format was invalid

parseInt

public static int parseInt(DataChunk dataChunk,
                           int offset,
                           int length)

Parses an unsigned integer from the specified part of DataChunk.

Parameters:

dataChunk - the DataChunk

offset - the start offset

length - the length

Throws:

java.lang.NumberFormatException - if the integer format was invalid

parseInt

public static int parseInt(byte[] b,
                           int off,
                           int len)
                    throws java.lang.NumberFormatException

Parses an unsigned integer from the specified sub-array of bytes.

Parameters:

b - the bytes to parse

off - the start offset of the bytes

len - the length of the bytes

Throws:

java.lang.NumberFormatException - if the integer format was invalid

parseInt

public static int parseInt(char[] b,
                           int off,
                           int len)
                    throws java.lang.NumberFormatException

Throws:

java.lang.NumberFormatException

parseInt

public static int parseInt(Buffer b,
                           int off,
                           int len)
                    throws java.lang.NumberFormatException

Parses an unsigned int from the specified sub-array of bytes.

Parameters:

b - the Buffer to parse

off - the start offset of the bytes

len - the length of the bytes

Throws:

java.lang.NumberFormatException - if the long format was invalid

parseInt

public static int parseInt(java.lang.String s,
                           int off,
                           int len)
                    throws java.lang.NumberFormatException

Throws:

java.lang.NumberFormatException

parseLong

public static long parseLong(byte[] b,
                             int off,
                             int len)
                      throws java.lang.NumberFormatException

Parses an unsigned long from the specified sub-array of bytes.

Parameters:

b - the bytes to parse

off - the start offset of the bytes

len - the length of the bytes

Throws:

java.lang.NumberFormatException - if the long format was invalid

parseLong

public static long parseLong(char[] b,
                             int off,
                             int len)
                      throws java.lang.NumberFormatException

Throws:

java.lang.NumberFormatException

parseLong

public static long parseLong(java.lang.String s,
                             int off,
                             int len)
                      throws java.lang.NumberFormatException

Throws:

java.lang.NumberFormatException

parseLong

public static long parseLong(Buffer b,
                             int off,
                             int len)
                      throws java.lang.NumberFormatException

Parses an unsigned long from the specified sub-array of bytes.

Parameters:

b - the Buffer to parse

off - the start offset of the bytes

len - the length of the bytes

Throws:

java.lang.NumberFormatException - if the long format was invalid

parseLong

public static long parseLong(DataChunk dataChunk)

parseLong

public static long parseLong(DataChunk dataChunk,
                             int offset,
                             int length)

intToHexString

public static void intToHexString(Buffer buffer,
                                  int i)

intToUnsignedString

public static void intToUnsignedString(Buffer buffer,
                                       int value,
                                       int shift)

Convert the integer to an unsigned number.