private int getID(Object object) // gets or sets object id for hash map
{
Integer id = referenceID;
if (map.containsKey(object)) id = (Integer) map.get(object);
else {
map.put(object, id);
referenceID++;
}
return id;
}
public Document serialize(Object object, Document doc) {
Class c = object.getClass();
Integer id = getID(object);
map.put(object, id);
String mapSize = Integer.toString(map.size());
// creating serialization objects
Element objectElement = new Element("object");
objectElement.setAttribute(new Attribute("class", c.getName()));
objectElement.setAttribute(new Attribute("id", mapSize));
doc.getRootElement().addContent(objectElement);
if (!c.isArray()) // class is not an array
{
Field[] fields = c.getDeclaredFields();
ArrayList<Element> fieldXML = serializeFields(fields, object, doc);
for (int i = 0; i < fieldXML.size(); i++) {
objectElement.addContent(fieldXML.get(i));
}
} else // class is an array
{
Object array = object;
objectElement.setAttribute(new Attribute("length", Integer.toString(Array.getLength(array))));
if (c.getComponentType().isPrimitive()) // class is array of primitives
{
for (int i = 0; i < Array.getLength(array); i++) {
Element value = new Element("value");
value.setText(Array.get(c, i).toString());
objectElement.addContent(value);
}
} else // class is array of references
{
for (int j = 0; j < Array.getLength(array); j++) {
Element ref = new Element("reference");
id = getID(Array.get(c, j));
if (id != -1) {
ref.setText(Integer.toString(id));
}
}
for (int k = 0; k < Array.getLength(array); k++) {
serialize(Array.get(array, k), doc);
}
}
}
if (currentElement == 0) {
referenceID = 0;
}
return doc;
}