Examples with LocaleContextResolver org.springframework.web.servlet.LocaleContextResolver used on opensource projects

Example 1 with LocaleContextResolver

use of org.springframework.web.servlet.LocaleContextResolver in project spring-framework by spring-projects.

the class RequestContext method initContext.

/**
	 * Initialize this context with the given request, using the given model attributes for Errors retrieval.
	 * <p>Delegates to {@code getFallbackLocale} and {@code getFallbackTheme} for determining the fallback
	 * locale and theme, respectively, if no LocaleResolver and/or ThemeResolver can be found in the request.
	 * @param request current HTTP request
	 * @param servletContext the servlet context of the web application (can be {@code null}; necessary for
	 * fallback to root WebApplicationContext)
	 * @param model the model attributes for the current view (can be {@code null}, using the request attributes
	 * for Errors retrieval)
	 * @see #getFallbackLocale
	 * @see #getFallbackTheme
	 * @see org.springframework.web.servlet.DispatcherServlet#LOCALE_RESOLVER_ATTRIBUTE
	 * @see org.springframework.web.servlet.DispatcherServlet#THEME_RESOLVER_ATTRIBUTE
	 */
protected void initContext(HttpServletRequest request, HttpServletResponse response, ServletContext servletContext, Map<String, Object> model) {
    this.request = request;
    this.response = response;
    this.model = model;
    // Fetch WebApplicationContext, either from DispatcherServlet or the root context.
    // ServletContext needs to be specified to be able to fall back to the root context!
    this.webApplicationContext = (WebApplicationContext) request.getAttribute(WEB_APPLICATION_CONTEXT_ATTRIBUTE);
    if (this.webApplicationContext == null) {
        this.webApplicationContext = RequestContextUtils.findWebApplicationContext(request, servletContext);
        if (this.webApplicationContext == null) {
            throw new IllegalStateException("No WebApplicationContext found: not in a DispatcherServlet " + "request and no ContextLoaderListener registered?");
        }
    }
    // Determine locale to use for this RequestContext.
    LocaleResolver localeResolver = RequestContextUtils.getLocaleResolver(request);
    if (localeResolver instanceof LocaleContextResolver) {
        LocaleContext localeContext = ((LocaleContextResolver) localeResolver).resolveLocaleContext(request);
        this.locale = localeContext.getLocale();
        if (localeContext instanceof TimeZoneAwareLocaleContext) {
            this.timeZone = ((TimeZoneAwareLocaleContext) localeContext).getTimeZone();
        }
    } else if (localeResolver != null) {
        // Try LocaleResolver (we're within a DispatcherServlet request).
        this.locale = localeResolver.resolveLocale(request);
    }
    // Try JSTL fallbacks if necessary.
    if (this.locale == null) {
        this.locale = getFallbackLocale();
    }
    if (this.timeZone == null) {
        this.timeZone = getFallbackTimeZone();
    }
    // Determine default HTML escape setting from the "defaultHtmlEscape"
    // context-param in web.xml, if any.
    this.defaultHtmlEscape = WebUtils.getDefaultHtmlEscape(this.webApplicationContext.getServletContext());
    // Determine response-encoded HTML escape setting from the "responseEncodedHtmlEscape"
    // context-param in web.xml, if any.
    this.responseEncodedHtmlEscape = WebUtils.getResponseEncodedHtmlEscape(this.webApplicationContext.getServletContext());
    this.urlPathHelper = new UrlPathHelper();
    if (this.webApplicationContext.containsBean(RequestContextUtils.REQUEST_DATA_VALUE_PROCESSOR_BEAN_NAME)) {
        this.requestDataValueProcessor = this.webApplicationContext.getBean(RequestContextUtils.REQUEST_DATA_VALUE_PROCESSOR_BEAN_NAME, RequestDataValueProcessor.class);
    }
}

Example 2 with LocaleContextResolver

use of org.springframework.web.servlet.LocaleContextResolver in project spring-framework by spring-projects.

the class RequestContext method changeLocale.

/**
	 * Change the current locale to the specified locale and time zone context,
	 * storing the new locale context through the configured {@link LocaleResolver}.
	 * @param locale the new locale
	 * @param timeZone the new time zone
	 * @see LocaleContextResolver#setLocaleContext
	 * @see org.springframework.context.i18n.SimpleTimeZoneAwareLocaleContext
	 */
public void changeLocale(Locale locale, TimeZone timeZone) {
    LocaleResolver localeResolver = RequestContextUtils.getLocaleResolver(this.request);
    if (!(localeResolver instanceof LocaleContextResolver)) {
        throw new IllegalStateException("Cannot change locale context if no LocaleContextResolver configured");
    }
    ((LocaleContextResolver) localeResolver).setLocaleContext(this.request, this.response, new SimpleTimeZoneAwareLocaleContext(locale, timeZone));
    this.locale = locale;
    this.timeZone = timeZone;
}

Example 3 with LocaleContextResolver

use of org.springframework.web.servlet.LocaleContextResolver in project spring-framework by spring-projects.

the class LocaleResolverTests method doTest.

private void doTest(LocaleResolver localeResolver, boolean shouldSet) {
    // create mocks
    MockServletContext context = new MockServletContext();
    MockHttpServletRequest request = new MockHttpServletRequest(context);
    request.addPreferredLocale(Locale.UK);
    MockHttpServletResponse response = new MockHttpServletResponse();
    // check original locale
    Locale locale = localeResolver.resolveLocale(request);
    assertEquals(locale, Locale.UK);
    // set new locale
    try {
        localeResolver.setLocale(request, response, Locale.GERMANY);
        if (!shouldSet)
            fail("should not be able to set Locale");
        // check new locale
        locale = localeResolver.resolveLocale(request);
        assertEquals(locale, Locale.GERMANY);
    } catch (UnsupportedOperationException ex) {
        if (shouldSet) {
            fail("should be able to set Locale");
        }
    }
    // check LocaleContext
    if (localeResolver instanceof LocaleContextResolver) {
        LocaleContextResolver localeContextResolver = (LocaleContextResolver) localeResolver;
        LocaleContext localeContext = localeContextResolver.resolveLocaleContext(request);
        if (shouldSet) {
            assertEquals(localeContext.getLocale(), Locale.GERMANY);
        } else {
            assertEquals(localeContext.getLocale(), Locale.UK);
        }
        assertTrue(localeContext instanceof TimeZoneAwareLocaleContext);
        assertNull(((TimeZoneAwareLocaleContext) localeContext).getTimeZone());
        if (localeContextResolver instanceof AbstractLocaleContextResolver) {
            ((AbstractLocaleContextResolver) localeContextResolver).setDefaultTimeZone(TimeZone.getTimeZone("GMT+1"));
            assertEquals(((TimeZoneAwareLocaleContext) localeContext).getTimeZone(), TimeZone.getTimeZone("GMT+1"));
        }
        try {
            localeContextResolver.setLocaleContext(request, response, new SimpleLocaleContext(Locale.US));
            if (!shouldSet) {
                fail("should not be able to set Locale");
            }
            localeContext = localeContextResolver.resolveLocaleContext(request);
            assertEquals(localeContext.getLocale(), Locale.US);
            if (localeContextResolver instanceof AbstractLocaleContextResolver) {
                assertEquals(((TimeZoneAwareLocaleContext) localeContext).getTimeZone(), TimeZone.getTimeZone("GMT+1"));
            } else {
                assertNull(((TimeZoneAwareLocaleContext) localeContext).getTimeZone());
            }
            localeContextResolver.setLocaleContext(request, response, new SimpleTimeZoneAwareLocaleContext(Locale.GERMANY, TimeZone.getTimeZone("GMT+2")));
            localeContext = localeContextResolver.resolveLocaleContext(request);
            assertEquals(localeContext.getLocale(), Locale.GERMANY);
            assertTrue(localeContext instanceof TimeZoneAwareLocaleContext);
            assertEquals(((TimeZoneAwareLocaleContext) localeContext).getTimeZone(), TimeZone.getTimeZone("GMT+2"));
            localeContextResolver.setLocaleContext(request, response, new SimpleTimeZoneAwareLocaleContext(null, TimeZone.getTimeZone("GMT+3")));
            localeContext = localeContextResolver.resolveLocaleContext(request);
            assertEquals(localeContext.getLocale(), Locale.UK);
            assertTrue(localeContext instanceof TimeZoneAwareLocaleContext);
            assertEquals(((TimeZoneAwareLocaleContext) localeContext).getTimeZone(), TimeZone.getTimeZone("GMT+3"));
            if (localeContextResolver instanceof AbstractLocaleContextResolver) {
                ((AbstractLocaleContextResolver) localeContextResolver).setDefaultLocale(Locale.GERMANY);
                assertEquals(localeContext.getLocale(), Locale.GERMANY);
            }
        } catch (UnsupportedOperationException ex) {
            if (shouldSet) {
                fail("should be able to set Locale");
            }
        }
    }
}