Examples of org.apache.wicket.protocol.http.WebApplication

org.apache.wicket.protocol.http.WebApplication
A web application is a subclass of Application which associates with an instance of WicketServlet to serve pages over the HTTP protocol. This class is intended to be subclassed by framework clients to define a web application.
Application settings are given defaults by the WebApplication() constructor and internalInit method, such as error page classes appropriate for HTML. WebApplication subclasses can override these values and/or modify other application settings by overriding the init() method and then by calling getXXXSettings() to retrieve an interface to a mutable Settings object. Do not do this in the constructor itself because the defaults will then override your settings.
If you want to use a filter specific configuration, e.g. using init parameters from the {@link javax.servlet.FilterConfig} object, you should override the init() method. For example:
```
 public void init() { String webXMLParameter = getInitParameter("myWebXMLParameter"); URL schedulersConfig = getServletContext().getResource("/WEB-INF/schedulers.xml"); ... 
```
@see WicketFilter @see org.apache.wicket.settings.IApplicationSettings @see org.apache.wicket.settings.IDebugSettings @see org.apache.wicket.settings.IExceptionSettings @see org.apache.wicket.settings.IMarkupSettings @see org.apache.wicket.settings.IPageSettings @see org.apache.wicket.settings.IRequestCycleSettings @see org.apache.wicket.settings.IResourceSettings @see org.apache.wicket.settings.ISecuritySettings @see javax.servlet.Filter @see javax.servlet.FilterConfig @see javax.servlet.ServletContext @author Jonathan Locke @author Chris Turner @author Johan Compagner @author Eelco Hillenius @author Juergen Donnerstag

   * https://issues.apache.org/jira/browse/WICKET-4123
   */
  @Test
  public void useCustomServletWebRequest()
  {
    WebApplication application = new WebApplication()
    {
      @Override
      public Class<? extends Page> getHomePage()
      {
        return CustomRequestPage.class;

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        counter.getAndIncrement();
        return responseBuffer;
      }
    };


    final WebApplication application = new DummyApplication()
    {
      @Override
      protected void init()
      {
        super.init();

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  {


    @Override
    protected void configure()
    {
      bind(WebApplication.class).toInstance(new WebApplication()
      {
        @Override
        public Class<? extends Page> getHomePage()
        {
          return null;

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  {
    String velocityPropertiesFile = "velocity.properties";


    if (application instanceof WebApplication)
    {
      WebApplication webapp = (WebApplication)application;
      ServletContext servletContext = webapp.getServletContext();
      String propertiesFolder = servletContext.getInitParameter("velocityPropertiesFolder");
      String propsFile = servletContext.getInitParameter("velocity.properties");


      if (null != propsFile)
      {

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    else
    {
      throw new RuntimeException(
        "To use GuiceWebApplicationFactory, you must specify either an 'injectorContextAttribute' or a 'module' init-param.");
    }
    WebApplication app = injector.getInstance(WebApplication.class);
    app.getComponentInstantiationListeners().add(new GuiceComponentInjector(app, injector));
    return app;
  }

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   * @see org.apache.wicket.behavior.IBehaviorListener#onRequest()
   */
  @Override
  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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  @Before
  public void before() throws Exception
  {


    tester = new WicketTester();
    WebApplication webApplication = tester.getApplication();
    webApplication.mountPage(EXPECTED_URL.toString(), DummyHomePage.class);
    mapper = new CryptoMapper(webApplication.getRootRequestMapper(), webApplication);
  }

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   * @since 6.0
   */
  protected final AjaxRequestAttributes getAttributes()
  {
    AjaxRequestAttributes attributes = new AjaxRequestAttributes();
    WebApplication application = (WebApplication)getComponent().getApplication();
    AjaxRequestTargetListenerCollection ajaxRequestTargetListeners = application.getAjaxRequestTargetListeners();
    for (AjaxRequestTarget.IListener listener : ajaxRequestTargetListeners)
    {
      if (listener instanceof AjaxRequestTarget.AbstractListener)
      {
        ((AjaxRequestTarget.AbstractListener)listener).updateAjaxAttributes(attributes);

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   * @see org.apache.wicket.behavior.IBehaviorListener#onRequest()
   */
  @Override
  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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  public WebSocketTester(final WicketTester wicketTester, final Page page)
  {
    Args.notNull(wicketTester, "wicketTester");
    Args.notNull(page, "page");


    WebApplication webApplication = wicketTester.getApplication();
    webApplication.getWicketFilter().setFilterPath("");


    socketProcessor = new TestWebSocketProcessor(wicketTester, page)
    {
      @Override
      protected void onOutMessage(String message)

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