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

Package org.apache.wicket.request.handler

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

org.apache.wicket.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

   * 
   * @param pageClass
   */
  public void setResponsePage(Class<? extends IRequestablePage> pageClass)
  {
    IPageProvider provider = new PageProvider(pageClass, null);
    scheduleRequestHandlerAfterCurrent(new RenderPageRequestHandler(provider,
      RenderPageRequestHandler.RedirectPolicy.AUTO_REDIRECT));
  }

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   * @param parameters
   */
  public void setResponsePage(Class<? extends IRequestablePage> pageClass,
    PageParameters parameters)
  {
    IPageProvider provider = new PageProvider(pageClass, parameters);
    scheduleRequestHandlerAfterCurrent(new RenderPageRequestHandler(provider,
      RenderPageRequestHandler.RedirectPolicy.AUTO_REDIRECT));
  }

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  public abstract int getCompatibilityScore(Request request);


  private IRequestHandler processBookmarkable(Class<? extends IRequestablePage> pageClass,
    PageParameters pageParameters)
  {
    PageProvider provider = new PageProvider(pageClass, pageParameters);
    provider.setPageSource(getContext());
    return new RenderPageRequestHandler(provider);
  }

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  private IRequestHandler processHybrid(PageInfo pageInfo,
    Class<? extends IRequestablePage> pageClass, PageParameters pageParameters,
    Integer renderCount)
  {
    PageProvider provider = new PageProvider(pageInfo.getPageId(), pageClass, pageParameters,
      renderCount);
    provider.setPageSource(getContext());
    return new RenderPageRequestHandler(provider);
  }

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    if (e instanceof StalePageException)
    {
      // If the page was stale, just rerender it
      // (the url should always be updated by an redirect in that case)
      return new RenderPageRequestHandler(new PageProvider(((StalePageException)e).getPage()));
    }
    else if (e instanceof PageExpiredException)
    {
      return createPageRequestHandler(new PageProvider(Application.get()
        .getApplicationSettings()
        .getPageExpiredErrorPage()));
    }
    else if (e instanceof AuthorizationException ||
      e instanceof ListenerInvocationNotAllowedException)
    {
      return createPageRequestHandler(new PageProvider(Application.get()
        .getApplicationSettings()
        .getAccessDeniedPage()));
    }
    else
    {


      final UnexpectedExceptionDisplay unexpectedExceptionDisplay = application.getExceptionSettings()
        .getUnexpectedExceptionDisplay();


      logger.error("Unexpected error occurred", e);


      if (IExceptionSettings.SHOW_EXCEPTION_PAGE.equals(unexpectedExceptionDisplay))
      {
        Page currentPage = extractCurrentPage();
        return createPageRequestHandler(new PageProvider(new ExceptionErrorPage(e,
          currentPage)));
      }
      else if (IExceptionSettings.SHOW_INTERNAL_ERROR_PAGE.equals(unexpectedExceptionDisplay))
      {
        return createPageRequestHandler(new PageProvider(
          application.getApplicationSettings().getInternalErrorPage()));
      }
      else
      {
        // IExceptionSettings.SHOW_NO_EXCEPTION_PAGE

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  /**
   * 
   */
  public void testEncode1()
  {
    PageProvider provider = new PageProvider(MockPage.class, new PageParameters());
    provider.setPageSource(context);
    IRequestHandler handler = new BookmarkablePageRequestHandler(provider);
    Url url = encoder.mapHandler(handler);
    assertEquals("some/mount/path", url.toString());
  }

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    PageParameters parameters = new PageParameters();
    parameters.set(0, "i1");
    parameters.set(1, "i2");
    parameters.set("a", "b");
    parameters.set("b", "c");
    PageProvider provider = new PageProvider(MockPage.class, parameters);
    provider.setPageSource(context);
    IRequestHandler handler = new BookmarkablePageRequestHandler(provider);
    Url url = encoder.mapHandler(handler);
    assertEquals("some/mount/path/i1/i2?a=b&b=c", url.toString());
  }

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    parameters.set(0, "i1");
    parameters.set(1, "i2");
    parameters.set("a", "b");
    parameters.set("b", "c");


    PageProvider provider = new PageProvider(MockPage.class, parameters);
    provider.setPageSource(context);
    IRequestHandler handler = new BookmarkablePageRequestHandler(provider);
    Url url = encoder.mapHandler(handler);


    assertEquals("some/mount/path/i1/i2?a=b&b=c", url.toString());
  }

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    page.getPageParameters().set(1, "i2");
    page.getPageParameters().set("a", "b");
    page.getPageParameters().set("b", "c");
    page.setCreatedBookmarkable(true);


    IPageProvider provider = new PageProvider(page);
    IRequestHandler handler = new RenderPageRequestHandler(provider);
    Url url = encoder.mapHandler(handler);


    assertEquals("some/mount/path/i1/i2?15&a=b&b=c", url.toString());
  }

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    page.getPageParameters().set("a", "b");
    page.getPageParameters().set("b", "c");


    page.setCreatedBookmarkable(false);


    IPageProvider provider = new PageProvider(page);
    IRequestHandler handler = new RenderPageRequestHandler(provider);
    Url url = encoder.mapHandler(handler);


    // mounted pages must render mounted url even for page that has not been created by
    // bookmarkable

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