Examples of org.apache.wicket.request.cycle.RequestCycle

org.apache.wicket.request.cycle.RequestCycle
{@link RequestCycle} consists of two steps:
1. Resolve request handler
2. Execute request handler
During {@link IRequestHandler} execution the handler can schedule another {@link IRequestHandler}to run after it is done, or replace all {@link IRequestHandler}s on stack with another {@link IRequestHandler}. @see #scheduleRequestHandlerAfterCurrent(IRequestHandler) @see #replaceAllRequestHandlers(IRequestHandler) @author Matej Knopp @author igor.vaynberg

  public final RequestCycle createRequestCycle(final Request request, final Response response)
  {
    RequestCycleContext context = new RequestCycleContext(request, response,
      getRootRequestMapper(), getExceptionMapperProvider().get());


    RequestCycle requestCycle = getRequestCycleProvider().get(context);
    requestCycle.getListeners().add(requestCycleListeners);
    requestCycle.getListeners().add(new AbstractRequestCycleListener()
    {
      @Override
      public void onDetach(final RequestCycle requestCycle)
      {
        if (Session.exists())

View Full Code Here

  private static class DefaultRequestCycleProvider implements IRequestCycleProvider
  {
    @Override
    public RequestCycle get(final RequestCycleContext context)
    {
      return new RequestCycle(context);
    }

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      header = new AjaxHtmlHeaderContainer(this);
      final Page parentPage = component.getPage();
      parentPage.addOrReplace(header);
    }


    RequestCycle requestCycle = component.getRequestCycle();


    // save old response, set new
    Response oldResponse = requestCycle.setResponse(encodingHeaderResponse);


    try {
      encodingHeaderResponse.reset();


      // render the head of component and all it's children


      component.renderHead(header);


      if (component instanceof MarkupContainer)
      {
        ((MarkupContainer)component).visitChildren(new IVisitor<Component, Void>()
        {
          @Override
          public void component(final Component component, final IVisit<Void> visit)
          {
            if (component.isVisibleInHierarchy())
            {
              component.renderHead(header);
            }
            else
            {
              visit.dontGoDeeper();
            }
          }
        });
      }
    } finally {
      // revert to old response
      requestCycle.setResponse(oldResponse);
    }


    writeHeaderContribution(response);


    headerRendering = false;

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  /**
   * @return the FilteringHeaderResponse being used in this RequestCycle
   */
  public static FilteringHeaderResponse get()
  {
    RequestCycle requestCycle = RequestCycle.get();
    if (requestCycle == null)
    {
      throw new IllegalStateException(
        "You can only get the FilteringHeaderResponse when there is a RequestCycle present");
    }
    FilteringHeaderResponse response = requestCycle.getMetaData(RESPONSE_KEY);
    if (response == null)
    {
      throw new IllegalStateException(
        "No FilteringHeaderResponse is present in the request cycle.  This may mean that you have not decorated the header response with a FilteringHeaderResponse.  Simply calling the FilteringHeaderResponse constructor sets itself on the request cycle");
    }

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  {
    super.renderHead(component, response);


    CoreLibrariesContributor.contributeAjax(component.getApplication(), response);


    RequestCycle requestCycle = component.getRequestCycle();
    Url baseUrl = requestCycle.getUrlRenderer().getBaseUrl();
    CharSequence ajaxBaseUrl = Strings.escapeMarkup(baseUrl.toString());
    response.render(JavaScriptHeaderItem.forScript("Wicket.Ajax.baseUrl=\"" + ajaxBaseUrl +
      "\";", "wicket-ajax-base-url"));


    renderExtraHeaderContributors(component, response);

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  public final void onRequest()
  {
    WebApplication app = (WebApplication)getComponent().getApplication();
    AjaxRequestTarget target = app.newAjaxRequestTarget(getComponent().getPage());


    RequestCycle requestCycle = RequestCycle.get();
    requestCycle.scheduleRequestHandlerAfterCurrent(target);


    respond(target);
  }

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     * {@inheritDoc}
     */
    @Override
    protected void respond(final AjaxRequestTarget target)
    {
      RequestCycle requestCycle = RequestCycle.get();
      boolean save = requestCycle.getRequest()
        .getRequestParameters()
        .getParameterValue("save")
        .toBoolean(false);


      if (save)

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      if (page == null)
      {
        throw new WicketRuntimeException("Error creating page for modal dialog.");
      }
      CharSequence pageUrl = null;
      RequestCycle requestCycle = RequestCycle.get();


      if (page.isPageStateless())
      {
        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);
      }


      appendAssignment(buffer, "settings.src", 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);
      }


      @Override
      protected void onError(AjaxRequestTarget target)

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   */
  public final String getId()
  {
    if (id == null)
    {
      RequestCycle requestCycle = RequestCycle.get();
      if (requestCycle != null)
      {
        id = getSessionStore().getSessionId(requestCycle.getRequest(), false);
      }
      // we have one?
      if (id != null)
      {
        dirty();

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