public static void main(String[] args) {
Session session = null;
Transaction tx = null;
try {
session = sessionFactory.openSession();
tx = session.beginTransaction();
// retieve all cars
@SuppressWarnings("unchecked")
Car car = (Car) session.createQuery("from Car c where id =1").uniqueResult();
car.setPrice(car.getPrice() + 50);
tx.commit();
System.out.println(
"brand= " + car.getBrand() + ", year= " + car.getYear() + ", price= " + car.getPrice());
} catch (HibernateException e) {
if (tx != null) {
System.err.println("Rolling back: " + e.getMessage());
tx.rollback();
}
} finally {
if (session != null) {
session.close();
}
}
// Close the SessionFactory (not mandatory)
sessionFactory.close();
System.exit(0);
}
public static void main(String[] args) {
// Create an instance of Car with year as 2015
Car c = new Car(2015);
// Create a Tire for that car of 9.0 inch radius
Car.Tire t = c.new Tire(9.0);
System.out.println("Car's year:" + c.getYear());
System.out.println("Car's tire radius:" + t.getRadius());
}
// Writes cars into a text file before closing
@Override
protected void finalize() throws FileNotFoundException, IOException {
File file = new File(this.fileName);
FileWriter fileWriter = new FileWriter(file);
BufferedWriter bWriter = new BufferedWriter(fileWriter);
try {
for (Car car : cars) {
if (car != null) {
bWriter.write(car.getMake() + System.getProperty("line.separator"));
bWriter.write(car.getYear() + System.getProperty("line.separator"));
bWriter.write(car.getPrice() + System.getProperty("line.separator"));
bWriter.write(car.getVin() + System.getProperty("line.separator"));
}
}
} catch (Exception e) {
} finally {
bWriter.close();
fileWriter.close();
}
}
@Test
public void testProjection() throws IOException {
Path path = writeCarsToParquetFile(1, CompressionCodecName.UNCOMPRESSED, false);
Configuration conf = new Configuration();
Schema schema = Car.getClassSchema();
List<Schema.Field> fields = schema.getFields();
// Schema.Parser parser = new Schema.Parser();
List<Schema.Field> projectedFields = new ArrayList<Schema.Field>();
for (Schema.Field field : fields) {
String name = field.name();
if ("optionalExtra".equals(name) || "serviceHistory".equals(name)) {
continue;
}
// Schema schemaClone = parser.parse(field.schema().toString(false));
Schema.Field fieldClone =
new Schema.Field(name, field.schema(), field.doc(), field.defaultValue());
projectedFields.add(fieldClone);
}
Schema projectedSchema =
Schema.createRecord(
schema.getName(), schema.getDoc(), schema.getNamespace(), schema.isError());
projectedSchema.setFields(projectedFields);
AvroReadSupport.setRequestedProjection(conf, projectedSchema);
ParquetReader<Car> reader = new AvroParquetReader<Car>(conf, path);
for (Car car = reader.read(); car != null; car = reader.read()) {
assertEquals(car.getDoors() != null, true);
assertEquals(car.getEngine() != null, true);
assertEquals(car.getMake() != null, true);
assertEquals(car.getModel() != null, true);
assertEquals(car.getYear() != null, true);
assertEquals(car.getVin() != null, true);
assertNull(car.getOptionalExtra());
assertNull(car.getServiceHistory());
}
}
public void postVehicle(Car car) throws JSONException {
/*
dialog = new ProgressDialog(this);
dialog.setMessage("Loading Messages... Please wait...");
dialog.show();
*/
final Car carToAdd = car;
JSONObject params = new JSONObject();
// params.put("alt", "json");
params.put("username", Global.localUser.getUsername());
params.put("plateNumber", car.getLicensePlateNumber());
params.put("plateState", car.getLicensePlateState());
params.put("make", car.getMake());
params.put("model", car.getModel());
params.put("year", car.getYear());
params.put("color", car.getColor());
StringEntity entity = new StringEntity(params.toString(), ContentType.APPLICATION_JSON);
Global.localUser.addCar(carToAdd);
ParkingRestClient.post(
this,
"addVehicle?",
entity,
new JsonHttpResponseHandler() {
@Override
public void onSuccess(int statusCode, Header[] headers, JSONObject response) {
// dialog.dismiss();
Log.d("POST VEHICLE", "Success with object response");
Log.d("POST VEHICLE", response.toString());
try {
JSONObject key = response.getJSONObject("key");
int id = Integer.parseInt(key.getString("id"));
carToAdd.setId(id);
} catch (JSONException e) {
e.printStackTrace();
}
}
@Override
public void onSuccess(int statusCode, Header[] headers, JSONArray response) {
Global.localUser.addCar(carToAdd);
Log.d("POST VEHICLE", "Success with array response");
Log.d("POST VEHICLE", response.toString());
}
@Override
public void onFailure(
int statusCode, Header[] headers, Throwable throwable, JSONArray errorResponse) {
// dialog.dismiss();
Global.localUser.getCars().remove(carToAdd);
System.out.println(errorResponse);
Toast toast =
Toast.makeText(getBaseContext(), "Error connecting to Server", Toast.LENGTH_LONG);
toast.setGravity(Gravity.TOP, 25, 400);
toast.show();
}
});
}
