package com server core pools import com server core filters FilterEnt

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package com.server.core.pools;
import com.server.core.filters.FilterEntity;
import com.server.db.DataBase;
import com.server.utils.ResourceManager;
import com.server.utils.maps.DistanceDetector;
import org.json.JSONArray;
import org.json.JSONObject;
import java.sql.ResultSet;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import static com.server.core.pools.DriverCommandPool.Command;
/**
* Created by Roman on 6/4/14.
*/
public class TaxiPool {
public static enum DriverStatus {
WAITING("Чекає на замовлення"),
JOB_ACCEPTED("Замовлення прийняте"),
EN_ROUTE("В дорозі до клієнта"),
WAITING_FOR_CLIENT("Чекає клієнта"),
EXECUTING_ORDER("Виконує замовлення");
private String mDescription;
DriverStatus(String description) {
mDescription = description;
}
}
private static final String ID = "id";
private static final String VALUE = "value";
private static final Object LOCK;
private static HashMap<Integer, DriverModel> mActiveDrivers;
private static HashMap<String, Integer> mSentOffers;
static {
LOCK = new Object();
mActiveDrivers = new HashMap<Integer, DriverModel>();
mSentOffers = new HashMap<String, Integer>();
{
registerDriver(0, 49.232565, 28.483920);
registerDriver(1, 49.233341, 28.475261);
registerDriver(2, 49.239665, 28.467494);
registerDriver(3, 49.226928, 28.489016);
}
}
public static ArrayList<DriverModel> getNearbyDrivers(double latitude, double longitude, JSONArray filters,
int radius) {
synchronized (LOCK) {
ArrayList<DriverModel> list = new ArrayList<DriverModel>();
Collection<DriverModel> models = mActiveDrivers.values();
for (DriverModel model : models) {
double driverLatitude = model.mLatitude;
double driverLongitude = model.mLongitude;
float distance = DistanceDetector.distanceBetween(latitude, longitude, driverLatitude, driverLongitude);
if (distance <= radius) {
if (filters != null) {
int length = filters.length();
boolean valid = true;
for (int filterIndex = 0; filterIndex < length; filterIndex++) {
try {
JSONObject filter = filters.getJSONObject(filterIndex);
String id = filter.getString(ID);
FilterEntity filterEntity = FilterEntity.findFilter(id);
if (filterEntity != null) {
Object value = filter.get(VALUE);
valid &= filterEntity.applyFilter(model, value, latitude, longitude);
}
} catch (Exception e) {
e.printStackTrace();
}
}
if (valid) {
list.add(model);
}
} else {
list.add(model);
}
}
}
return list;
}
}
public static DriverModel getDriver(int driverID) {
return mActiveDrivers.get(driverID);
}
public static ArrayList<DriverModel> getDrivers() {
synchronized (LOCK) {
ArrayList<DriverModel> list = new ArrayList<DriverModel>();
Collection<DriverModel> models = mActiveDrivers.values();
for (DriverModel model : models) {
list.add(model);
}
return list;
}
}
private static void offerJob(DriverModel driverModel) {
JobPool.ReservationModel reservationModel = JobPool.findJobForDriver(driverModel);
if (reservationModel != null) {
int driverID = driverModel.getID();
String confirmationNumber = reservationModel.getConfirmationNumber();
if (mSentOffers.containsKey(confirmationNumber) && mSentOffers.get(confirmationNumber) == driverID) {
return;
}
JSONObject data = reservationModel.toJson();
DriverCommandPool.sendCommand(driverID, Command.OFFER_JOB, data);
mSentOffers.put(confirmationNumber, driverID);
}
}
public static void registerDriver(int driverID, double latitude, double longitude) {
synchronized (LOCK) {
if (mActiveDrivers.containsKey(driverID)) {
mActiveDrivers.remove(driverID);
}
DriverModel driverModel = DriverModel.fromDB(driverID);
driverModel.mLatitude = latitude;
driverModel.mLongitude = longitude;
driverModel.mStatus = DriverStatus.WAITING;
mActiveDrivers.put(driverID, driverModel);
offerJob(driverModel);
}
}
public static void updateDriverStatus(int driverID, DriverStatus status) {
synchronized (LOCK) {
DriverModel driverModel = mActiveDrivers.get(driverID);
if (driverModel != null) {
driverModel.mStatus = status;
}
}
}
public static void unregisterDriver(int driverID) {
synchronized (LOCK) {
mActiveDrivers.remove(driverID);
}
}
public static void updateDriverLocation(int driverID, double latitude, double longitude) {
synchronized (LOCK) {
if (mActiveDrivers.containsKey(driverID)) {
DriverModel driverModel = mActiveDrivers.get(driverID);
driverModel.mLatitude = latitude;
driverModel.mLongitude = longitude;
driverModel.mLastUpdateTime = System.currentTimeMillis();
offerJob(driverModel);
}
}
}
public static class DriverModel {
private static final String CAR = "car";
private static final String LATITUDE = "latitude";
private static final String LONGITUDE = "longitude";
private static final String ID = "id";
private static final String FIRST_NAME = "first_name";
private static final String LAST_NAME = "last_name";
private static final String CAR_ID = "car_id";
private static final String RATING = "rating";
private static final String PHONE_NUMBER = "phone_number";
private static final String STATUS = "status";
private static final String DESCRIPTION = "description";
private boolean mLocked;
private boolean mIsOfferSent;
private int mID;
private String mFirstName;
private String mLastName;
private double mRating;
private String mPhoneNumber;
private int mCarID;
private CarModel mCarModel;
private DriverStatus mStatus;
private double mLatitude;
private double mLongitude;
private long mLastUpdateTime;
private DriverModel() {
mLastUpdateTime = System.currentTimeMillis();
}
public boolean isLocked() {
return mLocked;
}
public void lock() {
mLocked = true;
}
public void unlock() {
mLocked = false;
}
public int getID() {
return mID;
}
public String getFirstName() {
return mFirstName;
}
public String getLastName() {
return mLastName;
}
public double getRating() {
return mRating;
}
public CarModel getCarModel() {
return mCarModel;
}
public double getLatitude() {
return mLatitude;
}
public double getLongitude() {
return mLongitude;
}
public void setDriverStatus(DriverStatus status) {
mStatus = status;
}
private static DriverModel fromDB(int driverID) {
try {
String getDriver = ResourceManager.getStringFromFile("/resources/sql/consumer/get_driver.sql");
ResultSet resultSet = DataBase.executeQuery(getDriver, driverID);
if (resultSet.next()) {
DriverModel model = new DriverModel();
model.mID = resultSet.getInt(ID);
model.mFirstName = resultSet.getString(FIRST_NAME);
model.mLastName = resultSet.getString(LAST_NAME);
model.mRating = resultSet.getDouble(RATING);
model.mPhoneNumber = resultSet.getString(PHONE_NUMBER);
{
int carID = resultSet.getInt(CAR_ID);
model.mCarID = carID;
model.mCarModel = CarModel.fromDB(carID);
}
return model;
}
return null;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
@Override
public String toString() {
return mFirstName + " " + mLastName;
}
public JSONObject toJson() throws Exception {
JSONObject object = new JSONObject();
object.put(ID, mID);
object.put(FIRST_NAME, mFirstName);
object.put(LAST_NAME, mLastName);
object.put(RATING, mRating);
object.put(PHONE_NUMBER, mPhoneNumber);
object.put(LATITUDE, mLatitude);
object.put(LONGITUDE, mLongitude);
JSONObject carObject = mCarModel.toJSONObject();
object.put(CAR, carObject);
JSONObject status = new JSONObject();
status.put(ID, mStatus);
status.put(DESCRIPTION, mStatus.mDescription);
object.put(STATUS, status);
return object;
}
}
public static class CarModel {
private static final String ID = "id";
private static final String COLOR = "color";
private static final String CAR_NAME = "car_name";
private static final String CAR_TYPE = "car_type";
private static final String SEATS_QUANTITY = "seats_quantity";
private static final String RATING = "rating";
private int mID;
private String mColor;
private String mCarName;
private String mCarType;
private int mSeatsQuantity;
private double mRating;
private CarModel() {
}
public int getID() {
return mID;
}
public String getColor() {
return mColor;
}
public String getCarName() {
return mCarName;
}
public String getCarType() {
return mCarType;
}
public int getSeatsQuantity() {
return mSeatsQuantity;
}
public double getRating() {
return mRating;
}
private static CarModel fromDB(int carID) {
try {
String getCar = ResourceManager.getStringFromFile("/resources/sql/consumer/get_car.sql");
ResultSet resultSet = DataBase.executeQuery(getCar, carID);
if (resultSet.next()) {
CarModel model = new CarModel();
model.mID = resultSet.getInt(ID);
model.mColor = resultSet.getString(COLOR);
model.mCarName = resultSet.getString(CAR_NAME);
model.mCarType = resultSet.getString(CAR_TYPE);
model.mSeatsQuantity = resultSet.getInt(SEATS_QUANTITY);
model.mRating = resultSet.getDouble(RATING);
return model;
}
return null;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
@Override
public String toString() {
return mCarName + "(" + mCarType + ", " + mColor + ")";
}
public JSONObject toJSONObject() throws Exception {
JSONObject object = new JSONObject();
object.put(ID, mID);
object.put(COLOR, mColor);
object.put(CAR_NAME, mCarName);
object.put(CAR_TYPE, mCarType);
object.put(SEATS_QUANTITY, mSeatsQuantity);
object.put(RATING, mRating);
return object;
}
}
}