Examples of org.springframework.web.servlet.support.RequestContext

Package org.springframework.web.servlet.support

Examples of org.springframework.web.servlet.support.RequestContext

org.springframework.web.servlet.support.RequestContext
Context holder for request-specific state, like current web application context, current locale, current theme, and potential binding errors. Provides easy access to localized messages and Errors instances.
Suitable for exposition to views, and usage within JSP's "useBean" tag, JSP scriptlets, JSTL EL, Velocity templates, etc. Necessary for views that do not have access to the servlet request, like Velocity templates.
Can be instantiated manually, or automatically exposed to views as model attribute via AbstractView's "requestContextAttribute" property.
Will also work outside of DispatcherServlet requests, accessing the root WebApplicationContext and using an appropriate fallback for the locale (the HttpServletRequest's primary locale). @author Juergen Hoeller @since 03.03.2003 @see org.springframework.web.servlet.DispatcherServlet @see org.springframework.web.servlet.view.AbstractView#setRequestContextAttribute @see org.springframework.web.servlet.view.UrlBasedViewResolver#setRequestContextAttribute @see #getFallbackLocale()

   * @see net.sf.jasperreports.engine.JRParameter#REPORT_LOCALE
   * @see net.sf.jasperreports.engine.JRParameter#REPORT_RESOURCE_BUNDLE
   * @see org.springframework.web.servlet.support.JstlUtils#exposeLocalizationContext
   */
  protected void exposeLocalizationContext(Map<String, Object> model, HttpServletRequest request) {
    RequestContext rc = new RequestContext(request, getServletContext());
    if (!model.containsKey(JRParameter.REPORT_LOCALE)) {
      model.put(JRParameter.REPORT_LOCALE, rc.getLocale());
    }
    JasperReport report = getReport();
    if ((report == null || report.getResourceBundle() == null) &&
        !model.containsKey(JRParameter.REPORT_RESOURCE_BUNDLE)) {
      model.put(JRParameter.REPORT_RESOURCE_BUNDLE,
          new MessageSourceResourceBundle(rc.getMessageSource(), rc.getLocale()));
    }
  }

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   * @see org.springframework.web.servlet.support.RequestContext
   */
  protected RequestContext createRequestContext(
      HttpServletRequest request, HttpServletResponse response, Map<String, Object> model) {


    return new RequestContext(request, response, getServletContext(), model);
  }

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@Deprecated
public class TilesJstlView extends TilesView {


  @Override
  protected void exposeHelpers(HttpServletRequest request) throws Exception {
    JstlUtils.exposeLocalizationContext(new RequestContext(request, getServletContext()));
  }

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            "Cannot expose bind macro helper '" + SPRING_MACRO_REQUEST_CONTEXT_ATTRIBUTE +
            "' because of an existing model object of the same name");
      }
      // Expose RequestContext instance for Spring macros.
      model.put(SPRING_MACRO_REQUEST_CONTEXT_ATTRIBUTE,
          new RequestContext(request, getServletContext(), model));
    }


    applyContentType(response);


    renderMergedTemplateModel(model, request, response);

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            "Cannot expose bind macro helper '" + SPRING_MACRO_REQUEST_CONTEXT_ATTRIBUTE +
            "' because of an existing model object of the same name");
      }
      // Expose RequestContext instance for Spring macros.
      model.put(SPRING_MACRO_REQUEST_CONTEXT_ATTRIBUTE,
          new RequestContext(request, getServletContext(), model));
    }


    applyContentType(response);


    renderMergedTemplateModel(model, request, response);

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   * @return the RequestContext instance
   * @see #setRequestContextAttribute
   * @see org.springframework.web.servlet.support.RequestContext
   */
  protected RequestContext createRequestContext(HttpServletRequest request, Map model) {
    return new RequestContext(request, getServletContext(), model);
  }

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  /**
   * @see org.springframework.web.servlet.support.RequestContext#getBindStatus(String)
   */
  public BindStatus getBindStatus(String path) throws IllegalStateException {
    return new BindStatus(new RequestContext(this.request), path, false);
  }

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  /**
   * @see org.springframework.web.servlet.support.RequestContext#getBindStatus(String, boolean)
   */
  public BindStatus getBindStatus(String path, boolean htmlEscape) throws IllegalStateException {
    return new BindStatus(new RequestContext(this.request), path, true);
  }

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    tag.doStartTag();
  }


  public void testRequestContext() throws ServletException {
    PageContext pc = createPageContext();
    RequestContext rc = new RequestContext((HttpServletRequest) pc.getRequest(), pc.getServletContext());
    assertEquals("test message", rc.getMessage("test"));
    assertEquals("test message", rc.getMessage("test", (Object[]) null));
    assertEquals("test message", rc.getMessage("test", "default"));
    assertEquals("test message", rc.getMessage("test", (Object[]) null, "default"));
    assertEquals("test arg1 message arg2",
        rc.getMessage("testArgs", new String[] {"arg1", "arg2"}, "default"));
    assertEquals("test arg1 message arg2",
        rc.getMessage("testArgs", Arrays.asList(new String[] {"arg1", "arg2"}), "default"));
    assertEquals("default", rc.getMessage("testa", "default"));
    assertEquals("default", rc.getMessage("testa", (List) null, "default"));
    MessageSourceResolvable resolvable = new DefaultMessageSourceResolvable(new String[] {"test"});
    assertEquals("test message", rc.getMessage(resolvable));
  }

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    MockHttpServletResponse response = new MockHttpServletResponse();


    simpleDispatcherServlet.service(request, response);
    assertTrue("forwarded to form", "form".equals(response.getForwardedUrl()));
    DefaultMessageSourceResolvable resolvable = new DefaultMessageSourceResolvable(new String[] {"test"});
    RequestContext rc = new RequestContext(request);


    assertTrue("hasn't RequestContext attribute", request.getAttribute("rc") == null);
    assertTrue("Correct WebApplicationContext",
        RequestContextUtils.getWebApplicationContext(request) instanceof SimpleWebApplicationContext);
    assertTrue("Correct context path", rc.getContextPath().equals(request.getContextPath()));
    assertTrue("Correct locale", Locale.CANADA.equals(RequestContextUtils.getLocale(request)));
    assertTrue("Correct theme",
        AbstractThemeResolver.ORIGINAL_DEFAULT_THEME_NAME.equals(RequestContextUtils.getTheme(request).getName()));
    assertTrue("Correct message", "Canadian & test message".equals(rc.getMessage("test")));


    assertTrue("Correct WebApplicationContext", rc.getWebApplicationContext() == simpleDispatcherServlet.getWebApplicationContext());
    assertTrue("Correct Errors", !(rc.getErrors(BaseCommandController.DEFAULT_COMMAND_NAME) instanceof EscapedErrors));
    assertTrue("Correct Errors", !(rc.getErrors(BaseCommandController.DEFAULT_COMMAND_NAME, false) instanceof EscapedErrors));
    assertTrue("Correct Errors", rc.getErrors(BaseCommandController.DEFAULT_COMMAND_NAME, true) instanceof EscapedErrors);
    assertEquals("Correct message", "Canadian & test message", rc.getMessage("test"));
    assertEquals("Correct message", "Canadian & test message", rc.getMessage("test", null, false));
    assertEquals("Correct message", "Canadian &amp; test message", rc.getMessage("test", null, true));
    assertEquals("Correct message", "Canadian & test message", rc.getMessage(resolvable));
    assertEquals("Correct message", "Canadian & test message", rc.getMessage(resolvable, false));
    assertEquals("Correct message", "Canadian &amp; test message", rc.getMessage(resolvable, true));
    assertEquals("Correct message", "Canadian & test message", rc.getMessage("test", "default"));
    assertEquals("Correct message", "default", rc.getMessage("testa", "default"));
    assertEquals("Correct message", "default &amp;", rc.getMessage("testa", null, "default &", true));
  }

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