private JSONObject saveModelNodes(List<Model> nodesToSave) throws JSONException {
JSONArray errorNodes = new JSONArray();
JSONObject respObj = new JSONObject();
// loop over nodes and order them ascending
TreeMap<Integer, Model> treeMap = new TreeMap<Integer, Model>();
for (int i = 0; i < nodesToSave.size(); i++) {
Model model = (Model) nodesToSave.get(i);
// loads all nodes guiid with type error
respObj.put(model.getGuiId(), "OK");
respObj.put("label", model.getLabel());
if (model.getParentId() != null) {
// look up for its id: if null --> newly created node
Integer id = model.getId();
if (id == null) {
treeMap.put(Integer.valueOf("-" + i + 1), model);
} else {
// else to modify node
treeMap.put(model.getId(), model);
}
} else {
// root node --> save first
try {
if (model.getId() != null) {
modelDao.modifyModel(model);
respObj.put(model.getGuiId(), model.getId());
respObj.put(model.getId() + "", model.getLabel());
} else {
Integer index = modelDao.insertModel(model);
respObj.put(model.getGuiId(), index);
respObj.put(index + "", model.getLabel());
}
} catch (Exception e) {
// send error!!!
respObj.put(model.getGuiId(), "KO");
}
}
}
Set set = treeMap.entrySet();
// Get an iterator
Iterator it = set.iterator();
// loop again over treemap
while (it.hasNext()) {
Map.Entry orderedEntry = (Map.Entry) it.next();
// check that parent exists
Model orderedNode = (Model) orderedEntry.getValue();
// GET JSON OBJECT VALUE
Integer parentId = orderedNode.getParentId();
try {
Model parent = modelDao.loadModelWithoutChildrenById(parentId);
if (parent != null) {
// if parent exists--> save
// if node id is negative --> insert
if (orderedNode.getId() == null) {
Integer newId = modelDao.insertModel(orderedNode);
if (newId != null) {
orderedNode.setId(newId);
respObj.put(orderedNode.getGuiId(), newId);
respObj.put(newId + "", orderedNode.getLabel());
} else {
respObj.put(orderedNode.getGuiId(), "KO");
}
} else {
// else update
modelDao.modifyModel(orderedNode);
respObj.put(orderedNode.getGuiId(), orderedNode.getId());
respObj.put(orderedNode.getId() + "", orderedNode.getLabel());
}
}
} catch (Exception e) {
// if parentId != null but no parent node stored on db --> exception
respObj.put(orderedNode.getGuiId(), "KO");
}
}
return respObj;
}
