/**
* Recursively-copies properties from the Object, up the inheritance hierarchy, to the destination
* Resource.
*
* @param type the Type of the object being copied. May be a super-type of the 'from' object.
* @param from the instance of Object being copied.
* @param to the destination Resource instance.
*/
private void copyProperties0(Class<?> type, Object from, Resource to) {
if (type == null) return;
if (Resource.class.isAssignableFrom(type)) {
to.from((Resource) from);
return;
}
Field[] fields = getDeclaredFields(type);
try {
for (Field f : fields) {
if (isIncluded(f)) {
f.setAccessible(true);
Object value = f.get(from);
if (value != null) {
addProperty(to, f, value);
}
}
}
} catch (IllegalAccessException e) {
throw new ResourceException(e);
}
copyProperties0(type.getSuperclass(), from, to);
}
/**
* Template method. Sub-classes can override to possibly handle annotations on the field, etc. By
* default, this method simply adds the property to the resource using the value and the given
* name of the field.
*
* @param to the destination resource.
* @param f the field to copy.
* @param value the value of the field.
*/
protected void addProperty(Resource to, Field f, Object value) {
to.addProperty(f.getName(), value);
}