java类org.springframework.context.i18n.LocaleContext的实例源码

/**
 * Prepare the given HTTP connection.
 * <p>The default implementation specifies POST as method,
 * "application/x-java-serialized-object" as "Content-Type" header,
 * and the given content length as "Content-Length" header.
 * @param connection the HTTP connection to prepare
 * @param contentLength the length of the content to send
 * @throws IOException if thrown by HttpURLConnection methods
 * @see java.net.HttpURLConnection#setRequestMethod
 * @see java.net.HttpURLConnection#setRequestProperty
 */
protected void prepareConnection(HttpURLConnection connection, int contentLength) throws IOException {
    if (this.connectTimeout >= 0) {
        connection.setConnectTimeout(this.connectTimeout);
    }
    if (this.readTimeout >= 0) {
        connection.setReadTimeout(this.readTimeout);
    }
    connection.setDoOutput(true);
    connection.setRequestMethod(HTTP_METHOD_POST);
    connection.setRequestProperty(HTTP_HEADER_CONTENT_TYPE, getContentType());
    connection.setRequestProperty(HTTP_HEADER_CONTENT_LENGTH, Integer.toString(contentLength));

    LocaleContext localeContext = LocaleContextHolder.getLocaleContext();
    if (localeContext != null) {
        Locale locale = localeContext.getLocale();
        if (locale != null) {
            connection.setRequestProperty(HTTP_HEADER_ACCEPT_LANGUAGE, StringUtils.toLanguageTag(locale));
        }
    }
    if (isAcceptGzipEncoding()) {
        connection.setRequestProperty(HTTP_HEADER_ACCEPT_ENCODING, ENCODING_GZIP);
    }
}

@Override
public void setLocaleContext(HttpServletRequest request, HttpServletResponse response, LocaleContext localeContext) {
    Locale locale = null;
    TimeZone timeZone = null;
    if (localeContext != null) {
        locale = localeContext.getLocale();
        if (localeContext instanceof TimeZoneAwareLocaleContext) {
            timeZone = ((TimeZoneAwareLocaleContext) localeContext).getTimeZone();
        }
        addCookie(response, (locale != null ? locale : "-") + (timeZone != null ? ' ' + timeZone.getID() : ""));
    }
    else {
        removeCookie(response);
    }
    request.setAttribute(LOCALE_REQUEST_ATTRIBUTE_NAME,
            (locale != null ? locale: determineDefaultLocale(request)));
    request.setAttribute(TIME_ZONE_REQUEST_ATTRIBUTE_NAME,
            (timeZone != null ? timeZone : determineDefaultTimeZone(request)));
}

@Override
public LocaleContext resolveLocaleContext(final HttpServletRequest request) {
    return new TimeZoneAwareLocaleContext() {
        @Override
        public Locale getLocale() {
            Locale locale = (Locale) WebUtils.getSessionAttribute(request, LOCALE_SESSION_ATTRIBUTE_NAME);
            if (locale == null) {
                locale = determineDefaultLocale(request);
            }
            return locale;
        }
        @Override
        public TimeZone getTimeZone() {
            TimeZone timeZone = (TimeZone) WebUtils.getSessionAttribute(request, TIME_ZONE_SESSION_ATTRIBUTE_NAME);
            if (timeZone == null) {
                timeZone = determineDefaultTimeZone(request);
            }
            return timeZone;
        }
    };
}

@Test
public void testSetAndResolveLocaleContext() {
    MockHttpServletRequest request = new MockHttpServletRequest();
    MockHttpServletResponse response = new MockHttpServletResponse();

    CookieLocaleResolver resolver = new CookieLocaleResolver();
    resolver.setLocaleContext(request, response, new SimpleLocaleContext(new Locale("nl", "")));

    Cookie cookie = response.getCookie(CookieLocaleResolver.DEFAULT_COOKIE_NAME);
    request = new MockHttpServletRequest();
    request.setCookies(cookie);

    resolver = new CookieLocaleResolver();
    LocaleContext loc = resolver.resolveLocaleContext(request);
    assertEquals("nl", loc.getLocale().getLanguage());
    assertTrue(loc instanceof TimeZoneAwareLocaleContext);
    assertNull(((TimeZoneAwareLocaleContext) loc).getTimeZone());
}

@Test
public void testSetAndResolveLocaleContextWithTimeZone() {
    MockHttpServletRequest request = new MockHttpServletRequest();
    MockHttpServletResponse response = new MockHttpServletResponse();

    CookieLocaleResolver resolver = new CookieLocaleResolver();
    resolver.setLocaleContext(request, response,
            new SimpleTimeZoneAwareLocaleContext(new Locale("nl", ""), TimeZone.getTimeZone("GMT+1")));

    Cookie cookie = response.getCookie(CookieLocaleResolver.DEFAULT_COOKIE_NAME);
    request = new MockHttpServletRequest();
    request.setCookies(cookie);

    resolver = new CookieLocaleResolver();
    LocaleContext loc = resolver.resolveLocaleContext(request);
    assertEquals("nl", loc.getLocale().getLanguage());
    assertTrue(loc instanceof TimeZoneAwareLocaleContext);
    assertEquals(TimeZone.getTimeZone("GMT+1"), ((TimeZoneAwareLocaleContext) loc).getTimeZone());
}

@Test
public void testSetAndResolveLocaleContextWithTimeZoneOnly() {
    MockHttpServletRequest request = new MockHttpServletRequest();
    MockHttpServletResponse response = new MockHttpServletResponse();

    CookieLocaleResolver resolver = new CookieLocaleResolver();
    resolver.setLocaleContext(request, response,
            new SimpleTimeZoneAwareLocaleContext(null, TimeZone.getTimeZone("GMT+1")));

    Cookie cookie = response.getCookie(CookieLocaleResolver.DEFAULT_COOKIE_NAME);
    request = new MockHttpServletRequest();
    request.addPreferredLocale(Locale.GERMANY);
    request.setCookies(cookie);

    resolver = new CookieLocaleResolver();
    LocaleContext loc = resolver.resolveLocaleContext(request);
    assertEquals(Locale.GERMANY, loc.getLocale());
    assertTrue(loc instanceof TimeZoneAwareLocaleContext);
    assertEquals(TimeZone.getTimeZone("GMT+1"), ((TimeZoneAwareLocaleContext) loc).getTimeZone());
}

/**
 * Create a HttpPost for the given configuration.
 * <p>The default implementation creates a standard HttpPost with
 * "application/x-java-serialized-object" as "Content-Type" header.
 * @param config the HTTP invoker configuration that specifies the
 * target service
 * @return the HttpPost instance
 * @throws java.io.IOException if thrown by I/O methods
 */
protected HttpPost createHttpPost(HttpInvokerClientConfiguration config) throws IOException {
    HttpPost httpPost = new HttpPost(config.getServiceUrl());
    RequestConfig requestConfig = createRequestConfig(config);
    if (requestConfig != null) {
        httpPost.setConfig(requestConfig);
    }
    LocaleContext localeContext = LocaleContextHolder.getLocaleContext();
    if (localeContext != null) {
        Locale locale = localeContext.getLocale();
        if (locale != null) {
            httpPost.addHeader(HTTP_HEADER_ACCEPT_LANGUAGE, StringUtils.toLanguageTag(locale));
        }
    }
    if (isAcceptGzipEncoding()) {
        httpPost.addHeader(HTTP_HEADER_ACCEPT_ENCODING, ENCODING_GZIP);
    }
    return httpPost;
}

/**
 * Prepare the given HTTP connection.
 * <p>The default implementation specifies POST as method,
 * "application/x-java-serialized-object" as "Content-Type" header,
 * and the given content length as "Content-Length" header.
 * @param connection the HTTP connection to prepare
 * @param contentLength the length of the content to send
 * @throws IOException if thrown by HttpURLConnection methods
 * @see java.net.HttpURLConnection#setRequestMethod
 * @see java.net.HttpURLConnection#setRequestProperty
 */
protected void prepareConnection(HttpURLConnection connection, int contentLength) throws IOException {
    if (this.connectTimeout >= 0) {
        connection.setConnectTimeout(this.connectTimeout);
    }
    if (this.readTimeout >= 0) {
        connection.setReadTimeout(this.readTimeout);
    }
    connection.setDoOutput(true);
    connection.setRequestMethod(HTTP_METHOD_POST);
    connection.setRequestProperty(HTTP_HEADER_CONTENT_TYPE, getContentType());
    connection.setRequestProperty(HTTP_HEADER_CONTENT_LENGTH, Integer.toString(contentLength));

    LocaleContext localeContext = LocaleContextHolder.getLocaleContext();
    if (localeContext != null) {
        Locale locale = localeContext.getLocale();
        if (locale != null) {
            connection.setRequestProperty(HTTP_HEADER_ACCEPT_LANGUAGE, StringUtils.toLanguageTag(locale));
        }
    }
    if (isAcceptGzipEncoding()) {
        connection.setRequestProperty(HTTP_HEADER_ACCEPT_ENCODING, ENCODING_GZIP);
    }
}

@Test
public void testPresets() {
    when(request.getAttribute(LOCALE_REQUEST_ATTRIBUTE_NAME)).thenReturn(LOCALE_DEFAULT);
    when(request.getAttribute(TIME_ZONE_REQUEST_ATTRIBUTE_NAME)).thenReturn(TIMEZONE_DEFAULT);

    LocaleContext context = resolver.resolveLocaleContext(request);

    assertThat(context).isNotNull();
    assertThat(context).isInstanceOf(TimeZoneAwareLocaleContext.class);
    Locale locale = ((TimeZoneAwareLocaleContext) context).getLocale();
    TimeZone zone = ((TimeZoneAwareLocaleContext) context).getTimeZone();

    assertThat(locale).isNotNull();
    assertThat(locale).isEqualTo(LOCALE_DEFAULT);
    assertThat(zone).isEqualTo(TIMEZONE_DEFAULT);

    List<Event> events = recorder.play();
    assertThat(events).isEmpty();
}

@Test
public void testTimeZone() {
    String value = "- " + TIMEZONE_CUSTOM.getID();
    Cookie cookie = new Cookie(DEFAULT_COOKIE_NAME, value);
    when(request.getCookies()).thenReturn(new Cookie[] { cookie });

    LocaleContext context = resolver.resolveLocaleContext(request);

    assertThat(context).isNotNull();
    assertThat(context).isInstanceOf(TimeZoneAwareLocaleContext.class);
    Locale locale = ((TimeZoneAwareLocaleContext) context).getLocale();
    TimeZone zone = ((TimeZoneAwareLocaleContext) context).getTimeZone();
    assertThat(locale).isEqualTo(LOCALE_DEFAULT);
    assertThat(zone).isEqualTo(TIMEZONE_CUSTOM);

    List<Event> events = recorder.play();
    assertThat(events).isEmpty();
}

@Test
public void testTimeZoneWithQuotes() {
    String value = resolver.quote("- " + TIMEZONE_CUSTOM.getID());
    Cookie cookie = new Cookie(DEFAULT_COOKIE_NAME, value);
    when(request.getCookies()).thenReturn(new Cookie[] { cookie });

    LocaleContext context = resolver.resolveLocaleContext(request);

    assertThat(context).isNotNull();
    assertThat(context).isInstanceOf(TimeZoneAwareLocaleContext.class);
    Locale locale = ((TimeZoneAwareLocaleContext) context).getLocale();
    TimeZone zone = ((TimeZoneAwareLocaleContext) context).getTimeZone();
    assertThat(locale).isEqualTo(LOCALE_DEFAULT);
    assertThat(zone).isEqualTo(TIMEZONE_CUSTOM);

    List<Event> events = recorder.play();
    assertThat(events).isEmpty();
}

@Test
public void testLocaleAndTimeZone() {
    String value = LOCALE_CUSTOM + " " + TIMEZONE_CUSTOM.getID();
    Cookie cookie = new Cookie(DEFAULT_COOKIE_NAME, value);
    when(request.getCookies()).thenReturn(new Cookie[] { cookie });

    LocaleContext context = resolver.resolveLocaleContext(request);

    assertThat(context).isNotNull();
    assertThat(context).isInstanceOf(TimeZoneAwareLocaleContext.class);
    Locale locale = ((TimeZoneAwareLocaleContext) context).getLocale();
    TimeZone zone = ((TimeZoneAwareLocaleContext) context).getTimeZone();
    assertThat(locale).isEqualTo(LOCALE_CUSTOM);
    assertThat(zone).isEqualTo(TIMEZONE_CUSTOM);

    List<Event> events = recorder.play();
    assertThat(events).isEmpty();
}

@Test
public void testLocaleAndTimeZoneWithQuotes() {
    String value = resolver.quote(LOCALE_CUSTOM.toString() + " " + TIMEZONE_CUSTOM.getID());
    Cookie cookie = new Cookie(DEFAULT_COOKIE_NAME, value);
    when(request.getCookies()).thenReturn(new Cookie[] { cookie });

    LocaleContext context = resolver.resolveLocaleContext(request);

    assertThat(context).isNotNull();
    assertThat(context).isInstanceOf(TimeZoneAwareLocaleContext.class);
    Locale locale = ((TimeZoneAwareLocaleContext) context).getLocale();
    TimeZone zone = ((TimeZoneAwareLocaleContext) context).getTimeZone();
    assertThat(locale).isEqualTo(LOCALE_CUSTOM);
    assertThat(zone).isEqualTo(TIMEZONE_CUSTOM);

    List<Event> events = recorder.play();
    assertThat(events).isEmpty();
}

@Test
public void testTraceLogLocaleAndTimeZone() {
    recorder.release();
    recorder.capture("TRACE");

    String value = LOCALE_CUSTOM + " " + TIMEZONE_CUSTOM.getID();
    Cookie cookie = new Cookie(DEFAULT_COOKIE_NAME, value);
    when(request.getCookies()).thenReturn(new Cookie[] { cookie });

    LocaleContext context = resolver.resolveLocaleContext(request);

    assertThat(context).isInstanceOf(TimeZoneAwareLocaleContext.class);
    Locale locale = ((TimeZoneAwareLocaleContext) context).getLocale();
    TimeZone zone = ((TimeZoneAwareLocaleContext) context).getTimeZone();

    List<Event> events = recorder.play();
    assertThat(events).hasSize(1);

    Event event = events.get(0);
    assertThat(event.getLevel()).isEqualTo("TRACE");
    assertThat(event.getMessage()).isEqualTo("Parsed cookie value [" + value + "] into locale '" + locale + "' " +
        "and time zone '" + zone.getID() + "'");
    assertThat(event.getThrown()).isNull();
}

/**
 * Prepare the given HTTP connection.
 * <p>
 * The default implementation specifies POST as method,
 * "application/x-java-serialized-object" as "Content-Type" header,
 * and the given content length as "Content-Length" header.
 *
 * @param connection the HTTP connection to prepare
 * @param contentLength the length of the content to send
 * @throws IOException if thrown by HttpURLConnection methods
 * @see java.net.HttpURLConnection#setRequestMethod
 * @see java.net.HttpURLConnection#setRequestProperty
 */
protected void prepareConnection(HttpURLConnection connection, int contentLength) throws IOException {
    if (this.connectTimeout >= 0)
        connection.setConnectTimeout(this.connectTimeout);
    if (this.readTimeout >= 0)
        connection.setReadTimeout(this.readTimeout);
    connection.setDoOutput(true);
    connection.setRequestMethod(HTTP_METHOD_POST);
    connection.setRequestProperty(HTTP_HEADER_CONTENT_TYPE, getContentType());
    connection.setRequestProperty(HTTP_HEADER_CONTENT_LENGTH, Integer.toString(contentLength));
    LocaleContext locale = LocaleContextHolder.getLocaleContext();
    if (locale != null)
        connection.setRequestProperty(HTTP_HEADER_ACCEPT_LANGUAGE, StringUtils.toLanguageTag(locale.getLocale()));
    if (isAcceptGzipEncoding())
        connection.setRequestProperty(HTTP_HEADER_ACCEPT_ENCODING, ENCODING_GZIP);
}

public void testValidActionRequestWithExistingThreadLocalRequestContext() throws IOException, PortletException {
        MockActionRequest request = new MockActionRequest();
        MockActionResponse response = new MockActionResponse();
        request.addPreferredLocale(Locale.GERMAN);
        request.setParameter("action", "form");
        request.setParameter("age", "29");

// see RequestContextListener.requestInitialized()
        try {
            LocaleContextHolder.setLocale(request.getLocale());
            RequestContextHolder.setRequestAttributes(new PortletRequestAttributes(request));

            LocaleContext servletLocaleContext = LocaleContextHolder.getLocaleContext();
            RequestAttributes servletRequestAttrs = RequestContextHolder.getRequestAttributes();

            simpleDispatcherPortlet.processAction(request, response);

            assertSame(servletLocaleContext, LocaleContextHolder.getLocaleContext());
            assertSame(servletRequestAttrs, RequestContextHolder.getRequestAttributes());
        }
        finally {
            RequestContextHolder.resetRequestAttributes();
            LocaleContextHolder.resetLocaleContext();
        }
    }

public void testValidRenderRequestWithExistingThreadLocalRequestContext() throws IOException, PortletException {
        MockRenderRequest request = new MockRenderRequest();
        MockRenderResponse response = new MockRenderResponse();
        request.addPreferredLocale(Locale.GERMAN);

// see RequestContextListener.requestInitialized()
        try {
            LocaleContextHolder.setLocale(request.getLocale());
            RequestContextHolder.setRequestAttributes(new PortletRequestAttributes(request));

            LocaleContext servletLocaleContext = LocaleContextHolder.getLocaleContext();
            RequestAttributes servletRequestAttrs = RequestContextHolder.getRequestAttributes();

            request.setParameter("action", "form");
            request.setParameter("age", "29");
            simpleDispatcherPortlet.doDispatch(request, response);

            assertSame(servletLocaleContext, LocaleContextHolder.getLocaleContext());
            assertSame(servletRequestAttrs, RequestContextHolder.getRequestAttributes());
        }
        finally {
            RequestContextHolder.resetRequestAttributes();
            LocaleContextHolder.resetLocaleContext();
        }
    }

public void testInvalidActionRequestWithExistingThreadLocalRequestContext() throws IOException, PortletException {
        MockActionRequest request = new MockActionRequest();
        MockActionResponse response = new MockActionResponse();
        request.addPreferredLocale(Locale.GERMAN);

// see RequestContextListener.requestInitialized()
        try {
            LocaleContextHolder.setLocale(request.getLocale());
            RequestContextHolder.setRequestAttributes(new PortletRequestAttributes(request));

            LocaleContext servletLocaleContext = LocaleContextHolder.getLocaleContext();
            RequestAttributes servletRequestAttrs = RequestContextHolder.getRequestAttributes();

            request.setParameter("action", "invalid");
            simpleDispatcherPortlet.processAction(request, response);
            String exceptionParam = response.getRenderParameter(DispatcherPortlet.ACTION_EXCEPTION_RENDER_PARAMETER);
            assertNotNull(exceptionParam); // ensure that an exceptional condition occured

            assertSame(servletLocaleContext, LocaleContextHolder.getLocaleContext());
            assertSame(servletRequestAttrs, RequestContextHolder.getRequestAttributes());
        }
        finally {
            RequestContextHolder.resetRequestAttributes();
            LocaleContextHolder.resetLocaleContext();
        }
    }

/**
 * Prepare the given HTTP connection.
 * <p>The default implementation specifies POST as method,
 * "application/x-java-serialized-object" as "Content-Type" header,
 * and the given content length as "Content-Length" header.
 * @param connection the HTTP connection to prepare
 * @param contentLength the length of the content to send
 * @throws IOException if thrown by HttpURLConnection methods
 * @see java.net.HttpURLConnection#setRequestMethod
 * @see java.net.HttpURLConnection#setRequestProperty
 */
protected void prepareConnection(HttpURLConnection connection, int contentLength) throws IOException {
    if (this.connectTimeout >= 0) {
        connection.setConnectTimeout(this.connectTimeout);
    }
    if (this.readTimeout >= 0) {
        connection.setReadTimeout(this.readTimeout);
    }
    connection.setDoOutput(true);
    connection.setRequestMethod(HTTP_METHOD_POST);
    connection.setRequestProperty(HTTP_HEADER_CONTENT_TYPE, getContentType());
    connection.setRequestProperty(HTTP_HEADER_CONTENT_LENGTH, Integer.toString(contentLength));
    LocaleContext locale = LocaleContextHolder.getLocaleContext();
    if (locale != null) {
        connection.setRequestProperty(HTTP_HEADER_ACCEPT_LANGUAGE, StringUtils.toLanguageTag(locale.getLocale()));
    }
    if (isAcceptGzipEncoding()) {
        connection.setRequestProperty(HTTP_HEADER_ACCEPT_ENCODING, ENCODING_GZIP);
    }
}

@Override
public LocaleContext resolveLocaleContext(final HttpServletRequest request) {
    parseLocaleCookieIfNecessary(request);
    return new TimeZoneAwareLocaleContext() {
        @Override
        public Locale getLocale() {
            return (Locale) request.getAttribute(LOCALE_REQUEST_ATTRIBUTE_NAME);
        }

        @Override
        public TimeZone getTimeZone() {
            return (TimeZone) request.getAttribute(TIME_ZONE_REQUEST_ATTRIBUTE_NAME);
        }
    };
}

@Override
public LocaleContext resolveLocaleContext(final HttpServletRequest request) {
    parseLocaleCookieIfNecessary(request);
    return new TimeZoneAwareLocaleContext() {
        @Override
        public Locale getLocale() {
            return (Locale) request.getAttribute(LOCALE_REQUEST_ATTRIBUTE_NAME);
        }

        @Override
        public TimeZone getTimeZone() {
            return (TimeZone) request.getAttribute(TIME_ZONE_REQUEST_ATTRIBUTE_NAME);
        }
    };
}

/**
 * Create a HttpPost for the given configuration.
 * <p>The default implementation creates a standard HttpPost with
 * "application/x-java-serialized-object" as "Content-Type" header.
 * @param config the HTTP invoker configuration that specifies the
 * target service
 * @return the HttpPost instance
 * @throws java.io.IOException if thrown by I/O methods
 */
protected HttpPost createHttpPost(HttpInvokerClientConfiguration config) throws IOException {
    HttpPost httpPost = new HttpPost(config.getServiceUrl());
    LocaleContext localeContext = LocaleContextHolder.getLocaleContext();
    if (localeContext != null) {
        Locale locale = localeContext.getLocale();
        if (locale != null) {
            httpPost.addHeader(HTTP_HEADER_ACCEPT_LANGUAGE, StringUtils.toLanguageTag(locale));
        }
    }
    if (isAcceptGzipEncoding()) {
        httpPost.addHeader(HTTP_HEADER_ACCEPT_ENCODING, ENCODING_GZIP);
    }
    return httpPost;
}

@Override
public LocaleContext resolveLocaleContext(final HttpServletRequest request) {
    parseLocaleCookieIfNecessary(request);
    return new TimeZoneAwareLocaleContext() {
        @Override
        public Locale getLocale() {
            return (Locale) request.getAttribute(LOCALE_REQUEST_ATTRIBUTE_NAME);
        }

        @Override
        public TimeZone getTimeZone() {
            return (TimeZone) request.getAttribute(TIME_ZONE_REQUEST_ATTRIBUTE_NAME);
        }
    };
}

@Override
public LocaleContext resolveLocaleContext(final HttpServletRequest request) {
    parseLocaleCookieIfNecessary(request);
    return new TimeZoneAwareLocaleContext() {
        @Override
        public Locale getLocale() {
            return (Locale) request.getAttribute(LOCALE_REQUEST_ATTRIBUTE_NAME);
        }

        @Override
        public TimeZone getTimeZone() {
            return (TimeZone) request.getAttribute(TIME_ZONE_REQUEST_ATTRIBUTE_NAME);
        }
    };
}

@Override
public LocaleContext resolveLocaleContext(final HttpServletRequest request) {
    parseLocaleCookieIfNecessary(request);
    return new TimeZoneAwareLocaleContext() {
        @Override
        public Locale getLocale() {
            return (Locale) request.getAttribute(LOCALE_REQUEST_ATTRIBUTE_NAME);
        }

        @Override
        public TimeZone getTimeZone() {
            return (TimeZone) request.getAttribute(TIME_ZONE_REQUEST_ATTRIBUTE_NAME);
        }
    };
}

@Override
public LocaleContext resolveLocaleContext(final HttpServletRequest request) {
    parseLocaleCookieIfNecessary(request);
    return new TimeZoneAwareLocaleContext() {
        @Override
        public Locale getLocale() {
            return (Locale) request.getAttribute(LOCALE_REQUEST_ATTRIBUTE_NAME);
        }

        @Override
        public TimeZone getTimeZone() {
            return (TimeZone) request.getAttribute(TIME_ZONE_REQUEST_ATTRIBUTE_NAME);
        }
    };
}

@Override
public LocaleContext resolveLocaleContext(final HttpServletRequest request) {
    parseLocaleCookieIfNecessary(request);
    return new TimeZoneAwareLocaleContext() {
        @Override
        public Locale getLocale() {
            return (Locale) request.getAttribute(LOCALE_REQUEST_ATTRIBUTE_NAME);
        }
        @Override
        public TimeZone getTimeZone() {
            return (TimeZone) request.getAttribute(TIME_ZONE_REQUEST_ATTRIBUTE_NAME);
        }
    };
}

private void initContextHolders(
        HttpServletRequest request, LocaleContext localeContext, RequestAttributes requestAttributes) {

    if (localeContext != null) {
        LocaleContextHolder.setLocaleContext(localeContext, this.threadContextInheritable);
    }
    if (requestAttributes != null) {
        RequestContextHolder.setRequestAttributes(requestAttributes, this.threadContextInheritable);
    }
    if (logger.isTraceEnabled()) {
        logger.trace("Bound request context to thread: " + request);
    }
}

private void resetContextHolders(HttpServletRequest request,
        LocaleContext prevLocaleContext, RequestAttributes previousAttributes) {

    LocaleContextHolder.setLocaleContext(prevLocaleContext, this.threadContextInheritable);
    RequestContextHolder.setRequestAttributes(previousAttributes, this.threadContextInheritable);
    if (logger.isTraceEnabled()) {
        logger.trace("Cleared thread-bound request context: " + request);
    }
}

/**
 * Build a LocaleContext for the given request, exposing the request's primary locale as current locale.
 * <p>The default implementation uses the dispatcher's LocaleResolver to obtain the current locale,
 * which might change during a request.
 * @param request current HTTP request
 * @return the corresponding LocaleContext
 */
@Override
protected LocaleContext buildLocaleContext(final HttpServletRequest request) {
    if (this.localeResolver instanceof LocaleContextResolver) {
        return ((LocaleContextResolver) this.localeResolver).resolveLocaleContext(request);
    }
    else {
        return new LocaleContext() {
            @Override
            public Locale getLocale() {
                return localeResolver.resolveLocale(request);
            }
        };
    }
}