@SuppressWarnings("deprecation")
public UIComponent processWidget(
UIComponent component,
String elementName,
Map<String, String> attributes,
UIMetawidget metawidget) {
// Actions don't get converters
if (ACTION.equals(elementName)) {
return component;
}
// Recurse into stubs...
if (component instanceof UIStub) {
// ...whose children have the same value binding as us...
//
// (this is important because choice of Converter is based off the attributes Map, and
// if the value binding is different then all bets are off as to the accuracy of the
// attributes)
javax.faces.el.ValueBinding valueBinding = component.getValueBinding("value");
if (valueBinding != null) {
String expressionString = valueBinding.getExpressionString();
List<UIComponent> children = component.getChildren();
for (UIComponent componentChild : children) {
javax.faces.el.ValueBinding childValueBinding = componentChild.getValueBinding("value");
if (childValueBinding == null) {
continue;
}
if (!expressionString.equals(childValueBinding.getExpressionString())) {
continue;
}
// ...and apply the Converter to them
processWidget(componentChild, elementName, attributes, metawidget);
}
}
return component;
}
// Ignore components that cannot have Converters
if (!(component instanceof ValueHolder)) {
return component;
}
// Defer evaluation of EL-based converters, else we will fail trying to store/restore them
// from the ViewState
ValueHolder valueHolder = (ValueHolder) component;
String converterId = attributes.get(FACES_CONVERTER);
if (converterId != null && FacesUtils.isExpression(converterId)) {
FacesContext context = FacesContext.getCurrentInstance();
component.setValueBinding(
"converter", context.getApplication().createValueBinding(converterId));
return component;
}
// Standard Converter
valueHolder.setConverter(getConverter(valueHolder, attributes));
return component;
}
