org.activemath.webapp.i18n
Class Localizer

java.lang.Object
  org.activemath.webapp.i18n.Localizer

public class Localizer
extends Object

Localization functions for ActiveMath's WebApp.

Method Summary

ResourceBundle	getBundle(String language) Get the @link ResourceBundle for language
String	getDefaultLanguage()
static Localizer	getInstance()
String	getItemDifficulty(String difficulty, String lang) Return localized string for an Omdoc item difficulty (eg "schwer").
String	getItemTag(String omdocTag, String omdocType, String lang) Return localized string for an Omdoc item type (eg "Lemma", "�bung").
Locale	getLocale(String language)
Set	getLocales()
String	getPreferredLanguage(HttpServletRequest request, User user) Determine the preferred language for a request.
List<String>	getSupportedLanguages() Return a list of supported languages.
boolean	isSupportedLanguage(String language) Say if language is supported.
static String	makeLocalizedName(String filename, String lang) Construct a localized (file)name.
void	resetBase() A means to reload the resource bundles without restarting the whole server

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static Localizer getInstance()

resetBase

public void resetBase()

A means to reload the resource bundles without restarting the whole server

makeLocalizedName

public static String makeLocalizedName(String filename,
                                       String lang)

Construct a localized (file)name.

Parameters:

filename - - name to localizer

lang - - language

Returns:

filename with "_lang" inserted before the suffix. ("pl/html/login.vm" --> "pl/html/login_de.vm")

getSupportedLanguages

public List<String> getSupportedLanguages()

Return a list of supported languages. List items are Strings (eg. "de", "en");

getDefaultLanguage

public String getDefaultLanguage()

isSupportedLanguage

public boolean isSupportedLanguage(String language)

Say if language is supported.

Parameters:

language - - may be null

getLocales

public Set getLocales()

getLocale

public Locale getLocale(String language)

Parameters:

language -

Returns:

getBundle

public ResourceBundle getBundle(String language)

Get the @link ResourceBundle for language

Parameters:

language -

Returns:

getPreferredLanguage

public String getPreferredLanguage(HttpServletRequest request,
                                   User user)

Determine the preferred language for a request. This takes into account:

• request parameters lang and language
• user setting (User.getLanguage()) if available
• HTTP request header "Accept-Language" coming from the browser
• ActiveMath configured default language

Parameters:

request - - Request to determine language for

user - - may be null

Returns:

The first language for which @link isSupportedLanguage() is true.

getItemTag

public String getItemTag(String omdocTag,
                         String omdocType,
                         String lang)

Return localized string for an Omdoc item type (eg "Lemma", "�bung").
Tries 2 keys:

• omdoc..

• omdoc.

Returns:

localized string for an Omdoc item type in a language

getItemDifficulty

public String getItemDifficulty(String difficulty,
                                String lang)

Return localized string for an Omdoc item difficulty (eg "schwer").
Tries the key:

• omdoc.difficulty.

Returns:

localized string for an Omdoc item difficulty in a language