/**
* 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.getWebApplicationContext(request, servletContext);
}
// 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(REQUEST_DATA_VALUE_PROCESSOR_BEAN_NAME)) {
this.requestDataValueProcessor =
this.webApplicationContext.getBean(
REQUEST_DATA_VALUE_PROCESSOR_BEAN_NAME, RequestDataValueProcessor.class);
}
}
/**
* 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;
}