private SimulatorConfig getSimulatorConfig(String content)
			throws IOException, JsonParseException, JsonMappingException {
		ObjectMapper objectMapper = new ObjectMapper();

		SimulatorConfig config = new SimulatorConfig();
		JsonNode node = objectMapper.readValue(content, JsonNode.class);

		config.setName(node.get("name").asText());
		JsonNode format = node.get("format");
		if (format != null)
			config.setFormat(format.asText());
		config.setSchedule(node.get("schedule").asLong());
		config.setFrequency(node.get("frequency").asLong());

		JsonNode sensores = node.get("sensors");
		if (sensores != null) {
			List<SensorConfig> sensors = new ArrayList<SensorConfig>();
			for (int i = 0; i < sensores.size(); i++) {
				JsonNode sensore = sensores.get(i);
				SensorConfig sc = new SensorConfig();
				sc.setSensor(sensore.get("sensor").asText());
				if (sensore.get("method") != null) {
					sc.setMethod(sensore.get("method").asText());
					JsonNode x = sensore.get("x");
					JsonNode y = sensore.get("y");
					double xx[] = new double[x.size()];
					double yy[] = new double[x.size()];
					for (int j = 0; j < x.size(); j++) {
						xx[j] = x.get(j).asDouble();
						yy[j] = y.get(j).asDouble();
					}
					sc.setX(xx);
					sc.setY(yy);
				}
				sensors.add(sc);
			}
			config.setSensors(sensors);
		}
		
		if (node.get("attributes") != null) {
			Iterator<Entry<String, JsonNode>> nodes = node.get("attributes").getFields();
			if (nodes != null) {
				Map<String, String> atrrMap = new LinkedHashTreeMap<String, String>();
				while (nodes.hasNext()) {
					Map.Entry<String, JsonNode> entry = (Map.Entry<String, JsonNode>) nodes.next();
					System.out.println("key --> " + entry.getKey() + " value-->" + entry.getValue());
					atrrMap.put(entry.getKey(), entry.getValue().asText());
				}
				config.setAttributes(atrrMap);
			}
		}
		return config;
	}

{
  "name": "SIM0_",
  "schedule":40,
  "frequency":1000,
  "start": false,
  "sensors":[{"sensor" : "Vibration",
               "method" : "spline",
               "x":[0.00, 10.0, 20.0, 30.0, 40.0],
               "y":[1.00, 2.0, 3.0, 2.0, 1.0]
              },
              {"sensor" : "Rotor_Speed",
               "method" : "spline",
               "x":[0.00, 10.0, 20.0, 30.0, 40.0],
               "y":[100.00, 200.0, 300.0, 200.0, 100.0]
              },
              {"sensor" : "Temperature",
               "method" : "line",
               "x":[0.00, 10.0, 20.0, 30.0, 40.0],
               "y":[10.00, 20.0, 30.0, 20.0, 10.0]
              }
    ]
}

String json = "{\"brand\":\"Jeep\", \"doors\": 3}";

Gson gson = new Gson();

Car car = gson.fromJson(json, Car.class);

public class Car {
    public String brand = null;
    public int    doors = 0;
}