/**
* Given a JSON item and a sync map, create a ContentValues map to be inserted into the DB.
*
* @param context
* @param localItem will be null if item is new to mobile. If it's been sync'd before, will point
* to local entry.
* @param item incoming JSON item.
* @param mySyncMap A mapping between the JSON object and the content values.
* @return new ContentValues, ready to be inserted into the database.
* @throws JSONException
* @throws IOException
* @throws NetworkProtocolException
*/
public static final ContentValues fromJSON(
Context context, Uri localItem, JSONObject item, SyncMap mySyncMap)
throws JSONException, IOException, NetworkProtocolException {
final ContentValues cv = new ContentValues();
for (final String propName : mySyncMap.keySet()) {
final SyncItem map = mySyncMap.get(propName);
if (!map.isDirection(SyncItem.SYNC_FROM)) {
continue;
}
if (map.isOptional() && (!item.has(map.remoteKey) || item.isNull(map.remoteKey))) {
continue;
}
final ContentValues cv2 = map.fromJSON(context, localItem, item, propName);
if (cv2 != null) {
cv.putAll(cv2);
}
}
return cv;
}
/**
* @param context
* @param localItem Will contain the URI of the local item being referenced in the cursor
* @param c active cursor with the item to sync selected.
* @param mySyncMap
* @return a new JSONObject representing the item
* @throws JSONException
* @throws NetworkProtocolException
* @throws IOException
*/
public static final JSONObject toJSON(Context context, Uri localItem, Cursor c, SyncMap mySyncMap)
throws JSONException, NetworkProtocolException, IOException {
final JSONObject jo = new JSONObject();
for (final String lProp : mySyncMap.keySet()) {
final SyncItem map = mySyncMap.get(lProp);
if (!map.isDirection(SyncItem.SYNC_TO)) {
continue;
}
final int colIndex = c.getColumnIndex(lProp);
// if it's a real property that's optional and is null on the local side
if (!lProp.startsWith("_") && map.isOptional()) {
if (colIndex == -1) {
throw new RuntimeException(
"Programming error: Cursor does not have column '"
+ lProp
+ "', though sync map says it should. Sync Map: "
+ mySyncMap);
}
if (c.isNull(colIndex)) {
continue;
}
}
final Object jsonObject = map.toJSON(context, localItem, c, lProp);
if (jsonObject instanceof MultipleJsonObjectKeys) {
for (final Entry<String, Object> entry : ((MultipleJsonObjectKeys) jsonObject).entrySet()) {
jo.put(entry.getKey(), entry.getValue());
}
} else {
jo.put(map.remoteKey, jsonObject);
}
}
return jo;
}
