CODEWITHSUNDEEP
javawicket
fselvatici
fselvatici

Reputation: 79

Wicket 8 - Extension mechanism does not work

I am migrating an application from older version of wicket to wicket 8. Some pages are working ok (simple pages such as login). These pages does not use the extension mechanism. When I access to a page that has the mechanism it doesn't work. I don't know if this is a bug but I tried everything and couldn't find a solution. I am using wicket 8.0.0-M5 (i kwnow that is not a stable release). Anybody had the same problem? Here is my code:

WerklijstPageXXX.html

<html xmlns:wicket>
 <body>
    <wicket:extend>
        <div wicket:id="panelXXX"></div>
    </wicket:extend>
</body>

WerklijstPanelXXX.html

<wicket:head xmlns:wicket>
</wicket:head>

<wicket:panel xmlns:wicket>
    <div wicket:id="filter">
         <div wicket:id="label"></div>
    </div>
</wicket:panel>

WerklijstPageXXX.java

public class WerklijstPageXXX extends BasePage {

private WerklijstPanelXXX werklijstPanel;

public WerklijstPageXXX() {
    werklijstPanel = new WerklijstPanelXXX("panelXXX"){};
    add(werklijstPanel);
}

@Override
public Panel getContextPanel(String id)
{
    return werklijstPanel.getWerklijstFilterPanel();
}

WerklijstPanelXXX.java

public abstract class WerklijstPanelXXX extends Panel {
private static final Logger LOG = LoggerFactory
        .getLogger(WerklijstPanelXXX.class);

private Panel filterPanel;

public WerklijstPanelXXX(String id) {
    super(id);
    WebMarkupContainer upperPanel = new WebMarkupContainer("filter");
    filterPanel = new Panel("filterPanel") {

    };

    add(upperPanel);

    upperPanel.add(new Label("label"));


}

public Panel getWerklijstFilterPanel() {
    return filterPanel;
}

EDIT: BasePage.html (part of it)

<div id="body" class="body">
                <div id="aside" class="aside">
                    <div wicket:id="contextPanel"></div>
                </div>
                <div id="content" class="content">
                    <div class="padding">
                        <wicket:child></wicket:child>
                    </div>
                </div>
            </div>

BasePage.java

    @Override
protected void onInitialize() {
    super.onInitialize();
    add(getContextPanel("contextPanel"));
    addTabMenu();
    addMenu();
    addPatientBar();
}

Error:

Root cause:

org.apache.wicket.WicketRuntimeException: The component(s) below failed to render. Possible reasons could be that: 1) you have added a component in code but forgot to reference it in the markup (thus the component will never be rendered), 2) if your components were added in a parent container then make sure the markup for the child container includes them in .

  1. [WerklijstPanelXXX [Component id = panelXXX, page = nl.philips.raris.web.werklijst.WerklijstPageXXX, path = panelXXX, type = nl.philips.raris.web.werklijst.WerklijstPanelXXX, isVisible = true, isVersioned = true], children = [WebMarkupContainer [Component id = filter]]]
  2. [WebMarkupContainer [Component id = filter, page = nl.philips.raris.web.werklijst.WerklijstPageXXX, path = panelXXX:filter, type = org.apache.wicket.markup.html.WebMarkupContainer, isVisible = true, isVersioned = true], children = [Component id = label]]
  3. [Component id = label, page = nl.philips.raris.web.werklijst.WerklijstPageXXX, path = panelXXX:filter:label, type = org.apache.wicket.markup.html.basic.Label, isVisible = true, isVersioned = true]

  4. [Panel [Component id = filterPanel, page = nl.philips.raris.web.werklijst.WerklijstPageXXX, path = filterPanel, type = org.apache.wicket.markup.html.panel.Panel, isVisible = true, isVersioned = true]]

    at org.apache.wicket.Page.checkRendering(Page.java:662) at org.apache.wicket.Page.onAfterRender(Page.java:805) at org.apache.wicket.markup.html.WebPage.onAfterRender(WebPage.java:209) at org.apache.wicket.Component.afterRender(Component.java:919) at org.apache.wicket.Component.render(Component.java:2335) at org.apache.wicket.Page.renderPage(Page.java:987) at org.apache.wicket.request.handler.render.WebPageRenderer.renderPage(WebPageRenderer.java:124) at org.apache.wicket.request.handler.render.WebPageRenderer.respond(WebPageRenderer.java:236) at org.apache.wicket.core.request.handler.RenderPageRequestHandler.respond(RenderPageRequestHandler.java:175) at org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:912) at org.apache.wicket.request.RequestHandlerExecutor.execute(RequestHandlerExecutor.java:65) at org.apache.wicket.request.cycle.RequestCycle.execute(RequestCycle.java:283) at org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:253) at org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:221) at org.apache.wicket.protocol.http.WicketFilter.processRequestCycle(WicketFilter.java:262) at org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:204) at org.apache.wicket.protocol.http.WicketServlet.doGet(WicketServlet.java:137) at javax.servlet.http.HttpServlet.service(HttpServlet.java:687) at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:808) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1669) at org.apache.shiro.web.servlet.AbstractShiroFilter.executeChain(AbstractShiroFilter.java:449) at org.apache.shiro.web.servlet.AbstractShiroFilter$1.call(AbstractShiroFilter.java:365) at org.apache.shiro.subject.support.SubjectCallable.doCall(SubjectCallable.java:90) at org.apache.shiro.subject.support.SubjectCallable.call(SubjectCallable.java:83) at org.apache.shiro.subject.support.DelegatingSubject.execute(DelegatingSubject.java:387) at org.apache.shiro.web.servlet.AbstractShiroFilter.doFilterInternal(AbstractShiroFilter.java:362) at org.apache.shiro.web.servlet.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:125) at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346) at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652) at org.springframework.orm.hibernate4.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:151) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1652)

Upvotes: 0

Views: 853

Answers (1)

martin-g
martin-g

Reputation: 17513

The Java and HTML component trees should match.

Your HTML states: <div wicket:id="*contextPanel*"></div>, but your Java code returns a Panel with id filterPanel instead. 

public WerklijstPageXXX() {
    werklijstPanel = new WerklijstPanelXXX("panelXXX"){};
    add(werklijstPanel);
}

@Override
public Panel getContextPanel(String id)  // HERE id is ignored
{
    return werklijstPanel.getWerklijstFilterPanel(); // This returns a panel with id `filterPanel`
}

Upvotes: 2

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