Examples of org.apache.wicket.core.request.handler.PageProvider

Package org.apache.wicket.core.request.handler

Examples of org.apache.wicket.core.request.handler.PageProvider

org.apache.wicket.core.request.handler.PageProvider
Provides page instance for request handlers. Each of the constructors has just enough information to get existing or create new page instance. Requesting or creating page instance is deferred until {@link #getPageInstance()} is called.
Purpose of this class is to reduce complexity of both {@link IRequestMapper}s and {@link IRequestHandler}s. {@link IRequestMapper} examines the URL, gathers all relevantinformation about the page in the URL (combination of page id, page class, page parameters and render count), creates {@link PageProvider} object and creates a {@link IRequestHandler} instancethat can use the {@link PageProvider} to access the page.
Apart from simplifying {@link IRequestMapper}s and {@link IRequestHandler}s {@link PageProvider}also helps performance because creating or obtaining page from {@link IPageManager} is delayeduntil the {@link IRequestHandler} actually requires the page. @author Matej Knopp

  @Test
  public void setQueryParameterWhenRequestHasAnQueryUrl()
  {
    PageParameters parameters = new PageParameters();
    parameters.set("q_1", "q_1_value");
    IPageProvider testPageProvider = new PageProvider(MockPageParametersAware.class, parameters);
    IRequestHandler pageRequestHandler = new BookmarkablePageRequestHandler(testPageProvider);
    Url url = tester.getApplication().getRootRequestMapper().mapHandler(pageRequestHandler);
    tester.getRequest().setParameter("q_2", "q_2_value");
    tester.getRequest().setUrl(url);

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  public void setMultiValueQueryParameter()
  {
    PageParameters parameters = new PageParameters();
    parameters.add("q_1", "q_1_value_1");
    parameters.add("q_1", "q_1_value_2");
    IPageProvider testPageProvider = new PageProvider(MockPageParametersAware.class, parameters);
    IRequestHandler pageRequestHandler = new BookmarkablePageRequestHandler(testPageProvider);
    Url url = tester.getApplication().getRootRequestMapper().mapHandler(pageRequestHandler);
    tester.getRequest().addParameter("q_2", "q_2_value_1");
    tester.getRequest().addParameter("q_2", "q_2_value_2");
    tester.getRequest().setUrl(url);

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        pageUrl = requestCycle.urlFor(page.getClass(), page.getPageParameters());
        appendAssignment(buffer, "settings.ie8_src", pageUrl);
      }
      else
      {
        IRequestHandler handler = new RenderPageRequestHandler(new PageProvider(page));


        pageUrl = requestCycle.urlFor(handler);
        String ie8_pageUrl = requestCycle.getUrlRenderer().renderRelativeUrl(
          requestCycle.mapUrlFor(handler));
        appendAssignment(buffer, "settings.ie8_src", ie8_pageUrl);

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    {
      @Override
      protected void onSubmit(AjaxRequestTarget target)
      {
        BookmarkablePageRequestHandler bookmarkablePageRequestHandler = new BookmarkablePageRequestHandler(
          new PageProvider(Index.class));
        RequestCycle requestCycle = RequestCycle.get();
        CharSequence urlFor = requestCycle.urlFor(bookmarkablePageRequestHandler);
        target.add(label);
      }

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    mapperContext.getPageManager().commitRequest();


    // by cleaning session cache we make sure of not being testing the same in-memory instance
    mapperContext.cleanSessionCache();


    PageProvider pageProvider = mapperContext.new TestPageProvider(testPage.getPageId(), 0);


    // simulation an test call to isNewPageInstance
    boolean isNewPageInstance = pageProvider.isNewPageInstance();
    assertFalse("test page is already stored", isNewPageInstance);


    // changing some sate
    StatefullMockPage providedPage = (StatefullMockPage)pageProvider.getPageInstance();
    providedPage.state = newState;
    mapperContext.getPageManager().touchPage(providedPage);
    mapperContext.getPageManager().commitRequest();

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    assertTrue(tester.getLastResponse().isRedirect());
  }


  public void testPageProperties_provided()
  {
    PageProvider provider = new PageProvider(new StatelessPageTest());
    assertTrue(provider.hasPageInstance());
    assertFalse(provider.isPageInstanceFresh());
  }

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    assertFalse(provider.isPageInstanceFresh());
  }


  public void testPageProperties_bookmarkable()
  {
    PageProvider provider = new PageProvider(StatelessPageTest.class);
    assertFalse(provider.hasPageInstance());
    try
    {
      provider.isPageInstanceFresh();
      fail("expected illegal state exception");
    }
    catch (IllegalStateException e)
    {
      // expected
    }


    provider.getPageInstance();


    assertTrue(provider.hasPageInstance());
    assertTrue(provider.isPageInstanceFresh());
  }

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    mapperContext.getPageManager().commitRequest();


    // by cleaning session cache we make sure of not being testing the same in-memory instance
    mapperContext.cleanSessionCache();


    PageProvider provider = mapperContext.new TestPageProvider(page.getPageId(), 0);
    assertTrue(provider.hasPageInstance());
    assertFalse(provider.isPageInstanceFresh());
  }

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  private CharSequence renderPage(final Class<? extends Page> pageClass)
  {
    PageParameters parameters = new PageParameters();
    parameters.set("name", name);


    final RenderPageRequestHandler handler = new RenderPageRequestHandler(new PageProvider(
      pageClass, parameters), RedirectPolicy.NEVER_REDIRECT);


    final PageRenderer pageRenderer = getApplication().getPageRendererProvider().get(handler);


    RequestCycle requestCycle = getRequestCycle();

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   * 
   * @param interceptPage
   */
  public RestartResponseAtInterceptPageException(Page interceptPage)
  {
    super(new RenderPageRequestHandler(new PageProvider(interceptPage),
      RedirectPolicy.AUTO_REDIRECT));
    InterceptData.set();
  }

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