com.infoengine.util
Class LanguagePreference

java.lang.Object
  com.infoengine.util.LanguagePreference

public class LanguagePreference

extends Object

LanguagePreference contains methods used to parse HTTP Accept-Language strings and retrieve the 'sub-parts' of the strings. These methods are for use when localizing a response to a client HTTP request.

Supported API: true
Extendable: false

Field Summary

private static Hashtable	defaultLanguageEncoding
private String	lang
private double	qualityValue
private static String	RESOURCE

Constructor Summary

LanguagePreference()
Supported API: true

LanguagePreference(String language, double qvalue)
Supported API: true

Method Summary

static Vector	getAcceptLanguagePreferences(String HTTPAcceptLanguage) getAcceptLanguagePreferences parses the HTTPAcceptLanguage string and builds a Vector of String objects to return.
static String	getEncoding(Locale locale) Returns the url encoding for the specified locale.
String	getLanguage() Returns the language string of the LanguagePreference object.
static Locale	getLocale(Vector preferences) Returns the Locale object for the most preferred language.
double	getQualityValue() Returns the qualtityValue of the LanguagePreference object.
static void	main(String[] args) Supported API: false

Methods inherited from class java.lang.Object

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

Field Detail

RESOURCE

private static final String RESOURCE

See Also:

Constant Field Values

defaultLanguageEncoding

private static Hashtable defaultLanguageEncoding

lang

private String lang

qualityValue

private double qualityValue

Constructor Detail

LanguagePreference

public LanguagePreference()

Supported API: true

LanguagePreference

public LanguagePreference(String language,
                          double qvalue)

Supported API: true

Method Detail

getQualityValue

public double getQualityValue()

Returns the qualtityValue of the LanguagePreference object.

Supported API: true

getLanguage

public String getLanguage()

Returns the language string of the LanguagePreference object.

Supported API: true

getAcceptLanguagePreferences

public static Vector getAcceptLanguagePreferences(String HTTPAcceptLanguage)
                                           throws IEException

getAcceptLanguagePreferences parses the HTTPAcceptLanguage string and builds a Vector of String objects to return. The Vector is populated in order of decreasing preference, that is, position 0 holds the most preferred language, position 1 (if present) holds the second preference, etc.

Supported API: true

Parameters:

HTTPAcceptLanguage - String received from an HTTP request holding the Accept-Language value.

Returns:

Vector of String objects.

Throws:

IEException - Thrown if a parsing error occurs.

getLocale

public static Locale getLocale(Vector preferences)

Returns the Locale object for the most preferred language. In other words, it builds the Locale object for the first element in the given Vector object. If the vector is empty, the default locale is returned.

Supported API: true

Parameters:

preferences - Vector object holding language strings in the order of preference.

Returns:

A Locale object.

getEncoding

public static String getEncoding(Locale locale)

Returns the url encoding for the specified locale.

Supported API: true

Parameters:

locale - Current locale

Returns:

url encoding expected.

main

public static void main(String[] args)

Supported API: false