Wicket Wizard show index of step - iterator

Question

for my Wicket Wizard I want to display an information like: "Wizard step 1 of 4". I started by getting the number of steps and I already came across the first problem:
public WizardPanel(String id) {
super(id, false);
// false deactivates the default style.
setDefaultModel(new CompoundPropertyModel<WizardPanel>(this));
WizardModel model = new WizardModel();
model.add(new FirstStep());
model.add(new SecondStep());
model.add(new ThirdStep());
model.add(new ConfirmationStep());
Iterator<IWizardStep> iterator = model.stepIterator();
for(int i = 1; iterator.hasNext(); i ++){
System.out.println(String.valueOf(i));
}
init(model);
}
My Iterator creates an infinite loop. Shouldn't there only be four objects he can iterate through?
Or is there even a basic implementation for this kind of pagination I haven't found yet?
Because my next step would be to get the current index out of model.getActiveStep(); and find which number it is.

Answer 1

I thought I share my solution (as far as it now is)
public class OverviewComponent extends Panel{
private static final long serialVersionUID = 1L;
private List<WizardStep> steps;
private WizardModel model;
public OverviewComponent(String id, WizardModel model) {
super(id);
this.model = model;
steps = fillList();
this.add(new ListView<WizardStep>("steps", steps) {
private static final long serialVersionUID = 1L;
/**
* Wrap a markup container around the item append a css attribute to every item
*/
#Override
protected void populateItem(ListItem<WizardStep> item) {
WebMarkupContainer stepOverviewItem;
item.add(stepOverviewItem = new WebMarkupContainer("stepOverviewItem"));
stepOverviewItem.add(new Label("index", Model.of(item.getIndex()+1)));
stepOverviewItem.add(new AttributeModifier("class", getCSSProperty(item.getModelObject())));
stepOverviewItem.setOutputMarkupId(true);
stepOverviewItem.setOutputMarkupPlaceholderTag(true);
}
});
}
public String getCSSProperty(WizardStep step) {
if (step.equals(model.getActiveStep())) {
return "active";
} else if (!step.isComplete()) {
return "pending";
} else if (step.isComplete()) {
return "completed";
}
return "";
}
public List<WizardStep> fillList() {
List<WizardStep> iSteps = new ArrayList<WizardStep>();
Iterator<IWizardStep> iterator = model.stepIterator();
while (iterator.hasNext()) {
iSteps.add((WizardStep)iterator.next());
}
return iSteps;
}
}