/**
* Copyright (C) 2013 - 2015 the enviroCar community
*
* This file is part of the enviroCar app.
*
* The enviroCar app is free software: you can redistribute it and/or
* modify it under the terms of the GNU General Public License as published
* by the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The enviroCar app is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
* Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with the enviroCar app. If not, see http://www.gnu.org/licenses/.
*/
package org.envirocar.remote.serializer;
import com.google.gson.JsonArray;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonParseException;
import org.envirocar.core.entity.Car;
import java.lang.reflect.Type;
import java.util.ArrayList;
import java.util.List;
/**
* GSON Json Deserializer that deserializes response of "sensors" in the following format.
* Requires an additional {@link CarSerializer} because of the "properties" nested object.
* <p/>
* {
* "sensors": [
* {
* "type": "car",
* "properties": {
* "model": "R 1200 GS ADV",
* "id": "51c96afce4b0fd063432096f",
* "fuelType": "gasoline",
* "constructionYear": 2012,
* "manufacturer": "BMW"
* }
* },
* {
* ...
*
* @author dewall
*/
public class CarListDeserializer implements JsonDeserializer<List<Car>> {
@Override
public List<Car> deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext
context) throws JsonParseException {
// Get the "sensors" element from the parsed JSON
final JsonArray sensors = json.getAsJsonObject()
.get(Car.KEY_ROOT).getAsJsonArray();
List<Car> result = new ArrayList<Car>();
for (int i = 0; i < sensors.size(); i++) {
result.add(context.<Car>deserialize(sensors.get(i), Car.class));
}
return result;
}
}