public static String getWidgetVar(String id) {
UIComponent component = findComponent(FacesContext.getCurrentInstance().getViewRoot(), id);
Renderer renderer =
FacesContext.getCurrentInstance()
.getRenderKit()
.getRenderer(component.getFamily(), component.getRendererType());
if (component == null) throw new FacesException("Cannot find component " + id + " in view.");
else if (!(renderer instanceof CoreRenderer))
throw new FacesException("Component with id " + id + " is not derived from CoreRenderer.");
return ((CoreRenderer) renderer).resolveWidgetVar(component);
}
public static boolean isLiteralText(UIComponent component) {
return component.getFamily().equalsIgnoreCase("facelets.LiteralText");
}