private String processThisFragment(PageContext context) throws PageAction {
// determine what controller to use
Object controller = getController(context.getRequest());
PageView view = null;
if (controller == null) {
// some views can specify their controller
try {
view = getView(null, context.getRequest());
ProviderAndName controllerProviderAndName = view.getController();
if (controllerProviderAndName != null) {
controller =
getController(
controllerProviderAndName.getProvider(), controllerProviderAndName.getName());
}
} catch (Exception ex) {
// this probably means we didn't find a view. Pass now to fail later
}
// TODO determine the controller from the view
if (controller == null) {
// go with the blank controller
controller = emptyController;
}
}
context.setController(controller);
// let the controller handle the request
// TODO: refactor because fragment controllers can now also return a FragmentRequest
Object resultObject = handleRequestWithController(context);
if (resultObject instanceof PageAction) {
throw (PageAction) resultObject;
}
String result = (String) resultObject;
// check if there was redirect (other than via a thrown PageAction)
if (result != null && result.startsWith("redirect:")) {
String toApplicationUrl = result.substring("redirect:".length());
throw new Redirect(toApplicationUrl);
}
// If the controller returns a simple string, we interpret that as a view in the requested
// provider.
// The controller should return "*:viewName" to search all providers.
if (result != null && result.indexOf(':') <= 0) {
result = context.getRequest().getMappedProviderName() + ":" + result;
}
// determine what view to use
// (if the controller requests the default view, and we have it from earlier, we use that)
if (result != null || view == null) {
view = getView(result, context.getRequest());
}
context.setView(view);
String output = view.render(context);
return output;
}
