jrun.servlet
Class AcceptLanguage

java.lang.Object
  |
  +--jrun.servlet.AcceptLanguage

public class AcceptLanguage

extends java.lang.Object

The AcceptLanguage class parses the "Accept-Language" request header and returns a list of locales preferred by the client.

Author:

Clement Wong

Constructor Summary

AcceptLanguage(java.util.Enumeration headers)
Constructs an AcceptLanguage object from an enumeration.

AcceptLanguage(java.lang.String header)
Constructs an AcceptLanguage object from a comma-separated string.

AcceptLanguage(java.lang.String[] headers)
Constructs an AcceptLanguage object from a string array.

Method Summary

boolean	exists()
java.util.Locale	getFirstLocale()
java.util.Enumeration	getLocales() Returns an enumeration of locales in the preferred order.
double	getSpecialRangeValue() Returns the q-value if "*;q=" is present.
boolean	isSpecialRangePresent() Returns true if * is present in the header.
static void	main(java.lang.String[] args) Main method.
void	reset(java.util.Enumeration headers) Resets this object with a new header.
void	reset(java.lang.String header) Resets this object with a new header.
void	reset(java.lang.String[] headers) Resets this object with a new header.

Methods inherited from class java.lang.Object

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

Constructor Detail

AcceptLanguage

public AcceptLanguage(java.lang.String header)

Constructs an AcceptLanguage object from a comma-separated string.

Parameters:

header - a comma-separated string.

AcceptLanguage

public AcceptLanguage(java.lang.String[] headers)

Constructs an AcceptLanguage object from a string array.

Parameters:

headers - a string array.

AcceptLanguage

public AcceptLanguage(java.util.Enumeration headers)

Constructs an AcceptLanguage object from an enumeration.

Parameters:

headers - an enumeration.

Method Detail

reset

public void reset(java.lang.String header)

Resets this object with a new header.

Parameters:

a - comma-separated string.

reset

public void reset(java.lang.String[] headers)

Resets this object with a new header.

Parameters:

a - string array.

reset

public void reset(java.util.Enumeration headers)

Resets this object with a new header.

Parameters:

an - enumeration.

isSpecialRangePresent

public boolean isSpecialRangePresent()

Returns true if * is present in the header.

Returns:

true if * is present, otherwise false.

getSpecialRangeValue

public double getSpecialRangeValue()

Returns the q-value if "*;q=" is present.

Returns:

q-value (quality factor)

getLocales

public java.util.Enumeration getLocales()

Returns an enumeration of locales in the preferred order.

exists

public boolean exists()

getFirstLocale

public java.util.Locale getFirstLocale()

main

public static void main(java.lang.String[] args)

Main method. It's used to test the class from command-line.