org.springframework.web.servlet.i18n

Class AcceptHeaderLocaleResolver

java.lang.Object

org.springframework.web.servlet.i18n.AcceptHeaderLocaleResolver

All Implemented Interfaces:

LocaleResolver

public class AcceptHeaderLocaleResolver
extends Object
implements LocaleResolver

LocaleResolver implementation that simply uses the primary locale specified in the Accept-Language header of the HTTP request (that is, the locale sent by the client browser, normally that of the client's OS).

Note: Does not support setLocale(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse, java.util.Locale) since the Accept-Language header can only be changed by changing the client's locale settings.

Since:

27.02.2003

Author:

Juergen Hoeller, Rossen Stoyanchev

See Also:

ServletRequest.getLocale()

Constructor Summary

Constructors

Constructor and Description
AcceptHeaderLocaleResolver()

Method Summary

Modifier and Type	Method and Description
Locale	getDefaultLocale() The configured default locale, if any.
List<Locale>	getSupportedLocales() Get the configured list of supported locales.
Locale	resolveLocale(HttpServletRequest request) Resolve the current locale via the given request.
void	setDefaultLocale(Locale defaultLocale) Configure a fixed default locale to fall back on if the request does not have an "Accept-Language" header.
void	setLocale(HttpServletRequest request, HttpServletResponse response, Locale locale) Set the current locale to the given one.
void	setSupportedLocales(List<Locale> locales) Configure supported locales to check against the requested locales determined via ServletRequest.getLocales().

Methods inherited from class java.lang.Object

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

Constructor Detail

AcceptHeaderLocaleResolver

public AcceptHeaderLocaleResolver()

Method Detail

setSupportedLocales

public void setSupportedLocales(List<Locale> locales)

Configure supported locales to check against the requested locales determined via ServletRequest.getLocales(). If this is not configured then ServletRequest.getLocale() is used instead.

Parameters:

locales - the supported locales

Since:

4.3

getSupportedLocales

public List<Locale> getSupportedLocales()

Get the configured list of supported locales.

Since:

4.3

setDefaultLocale

public void setDefaultLocale(@Nullable
                             Locale defaultLocale)

Configure a fixed default locale to fall back on if the request does not have an "Accept-Language" header.

By default this is not set in which case when there is no "Accept-Language" header, the default locale for the server is used as defined in ServletRequest.getLocale().

Parameters:

defaultLocale - the default locale to use

Since:

4.3

getDefaultLocale

@Nullable
public Locale getDefaultLocale()

The configured default locale, if any.

This method may be overridden in subclasses.

Since:

4.3

resolveLocale

public Locale resolveLocale(HttpServletRequest request)

Description copied from interface: LocaleResolver

Resolve the current locale via the given request.

Can return a default locale as fallback in any case.

Specified by:

resolveLocale in interface LocaleResolver

Parameters:

request - the request to resolve the locale for

Returns:

the current locale (never null)

setLocale

public void setLocale(HttpServletRequest request,
                      @Nullable
                      HttpServletResponse response,
                      @Nullable
                      Locale locale)

Description copied from interface: LocaleResolver

Set the current locale to the given one.

Specified by:

setLocale in interface LocaleResolver

Parameters:

request - the request to be used for locale modification

response - the response to be used for locale modification

locale - the new locale, or null to clear the locale