Implemented car service

cars4you/src/main/java/com/cars/car4you/api/CarsController.java

@@ -1,26 +1,25 @@
 package com.cars.car4you.api;
 
+import com.cars.car4you.dto.CarDto;
 import com.cars.car4you.model.Car;
 import com.cars.car4you.model.CarDetails;
 import com.cars.car4you.repository.CarDetailRepository;
 import com.cars.car4you.repository.CarRepository;
+import com.cars.car4you.service.CarService;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.*;
-import org.springframework.web.bind.annotation.PathVariable;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
 
 import java.util.List;
 
 @RestController
-@RequestMapping("/api/cars")
+@RequestMapping("/car/api")
 public class CarsController {
 
     @Autowired
     private CarRepository carRepository;
-    @Autowired
-    private CarDetailRepository carDetailRepository;
 
+    @Autowired
+    private CarService carService;
 
     @GetMapping("/{id}")
     public Car findOne(@PathVariable Long id) {
@@ -28,13 +27,23 @@ public class CarsController {
                 .orElseThrow(NullPointerException::new);
     }
 
-    @GetMapping("/carmodel/{model}")
+    @GetMapping("/model/{model}")
     public List<Car> findByModel(@PathVariable String model) {
         return carRepository.findByModel(model);
     }
 
-    @GetMapping("/carmodel/{maxPrice}/{maxYearsOld}")
+    @GetMapping("/search")
-    public List<Car> findByModel(@PathVariable int maxPrice, @PathVariable int maxYearsOld) {
+    public List<CarDto> findByCriterion(@RequestParam(value = "fuel_type", required = false) String fuelType,
-        return carRepository.findByCriterion(maxPrice, maxYearsOld, 0,null,null,null,0,null);
+                                        @RequestParam(value = "seats", required = false) Integer seats,
+                                        @RequestParam(value = "doors", required = false) Integer doors,
+                                        @RequestParam(value = "maximum_price", required = false) Integer maxPrice,
+                                        @RequestParam(value = "max_years_old", required = false) Integer maxYearsOld,
+                                        @RequestParam(value = "engine_power_from", required = false) Integer enginePowerFrom,
+                                        @RequestParam(value = "engine_power_to", required = false) Integer enginePowerTo,
+                                        @RequestParam(value = "body_type", required = false) String bodyType,
+                                        @RequestParam(value = "gearbox", required = false) String gearbox,
+                                        @RequestParam(value = "engine_power_to", required = false) String driveType) {
+
+        return carService.searchForCars(fuelType, seats, doors, maxPrice, maxYearsOld, enginePowerFrom, enginePowerTo, bodyType, gearbox, driveType);
     }
 }

cars4you/src/main/java/com/cars/car4you/api/SimpleController.java

@@ -1,13 +0,0 @@
-package com.cars.car4you.api;
-
-import org.springframework.stereotype.Controller;
-import org.springframework.web.bind.annotation.GetMapping;
-
-@Controller
-public class SimpleController {
-
-    @GetMapping("/")
-    public String homePage() {
-        return "home";
-    }
-}

cars4you/src/main/java/com/cars/car4you/dto/CarDto.java

@@ -1,4 +1,29 @@
 package com.cars.car4you.dto;
 
+import com.fasterxml.jackson.annotation.JsonInclude;
+import lombok.Data;
+
+
+@Data
+@JsonInclude(JsonInclude.Include.NON_NULL)
 public class CarDto {
+
+    private String brand;
+    private String model;
+    private String version;
+    private int year;
+    private int engine_power;
+    private double engine_capacity;
+    private String transmission;
+    private String drive;
+    private String body_type;
+    private int doors;
+    private int seats;
+    private long price_from;
+    private long price_to;
+    private long average;
+    private double rating;
+    private String fuel;
+    private String[] car_pros;
+    private String[] car_cons;
 }

cars4you/src/main/java/com/cars/car4you/model/Car.java

@@ -13,10 +13,10 @@ public class Car {
     private CarDetails carDetails;
 
     @Column(nullable = false, unique = false, insertable = false, updatable = false)
-    private long car_details_id;
+    private Long car_details_id;
 
     @Id
-    private long id;
+    private Long id;
 
     @Column(nullable = false, unique = false)
     private String brand;
@@ -28,13 +28,13 @@ public class Car {
     private String version;
 
     @Column(nullable = false, unique = false)
-    private int year;
+    private Integer year;
 
     @Column(nullable = false, unique = false)
-    private int engine_power;
+    private Integer engine_power;
 
     @Column(nullable = false, unique = false)
-    private double engine_capacity;
+    private Double engine_capacity;
 
     @Column(nullable = false, unique = false)
     private String transmission;
@@ -46,18 +46,21 @@ public class Car {
     private String body_type;
 
     @Column(nullable = false, unique = false)
-    private int doors;
+    private Integer doors;
 
     @Column(nullable = false, unique = false)
-    private int seats;
+    private Integer seats;
 
     @Column(nullable = false, unique = false)
-    private long price_from;
+    private Long price_from;
 
     @Column(nullable = false, unique = false)
-    private long price_to;
+    private Long price_to;
 
     @Column(nullable = false, unique = false)
-    private double avarage;
+    private Long avarage;
+
+    @Column(nullable = false, unique = false)
+    private String fuel;
 
 }

cars4you/src/main/java/com/cars/car4you/model/CarDetails.java

@@ -37,7 +37,7 @@ public class CarDetails {
     private Long price_to;
 
     @Column(nullable = true, unique = false)
-    private Double average;
+    private Long average;
 
     @Type(type = "string-array" )
     @Column(name = "car_pros")

cars4you/src/main/java/com/cars/car4you/repository/CarRepositoryImpl.java

@@ -20,10 +20,11 @@ public class CarRepositoryImpl implements CustomCarRepository  {
     private EntityManager em;
 
     @Override
-    public List<Car> findByCriterion(int maxPrice, int maxYearsOld,
+    public List<Car> findByCriterion(Integer maxPrice, Integer maxYearsOld,
-                                     int seats, CarType carType,
+                                     Integer seats, Integer doors, String bodyType,
-                                     String fuelType,
+                                     String fuelType, String transmission,
-                                     String transmission, int enginePower, String driveType) {
+                                     Integer enginePowerFrom, Integer enginePowerTo,
+                                     String driveType) {
         CriteriaBuilder criteriaBuilder = em.getCriteriaBuilder();
         CriteriaQuery<Car> cq = criteriaBuilder.createQuery(Car.class);
 
@@ -33,19 +34,17 @@ public class CarRepositoryImpl implements CustomCarRepository  {
 
         LocalDateTime localDateTime = LocalDateTime.now();
 
-        if(maxPrice != 0) {
+        if(maxPrice != null) predicates.add(criteriaBuilder.lessThanOrEqualTo(car.get("price_to"), maxPrice));
-            predicates.add(criteriaBuilder.lessThanOrEqualTo(car.get("price_to"), maxPrice));
+        if(maxYearsOld != null) predicates.add(criteriaBuilder.greaterThanOrEqualTo(car.get("year"),localDateTime.getYear() - maxYearsOld));
-        }
+        if(enginePowerFrom != null) predicates.add(criteriaBuilder.greaterThanOrEqualTo(car.get("engine_power"), enginePowerFrom));
-
+        if(enginePowerTo != null) predicates.add(criteriaBuilder.lessThanOrEqualTo(car.get("engine_power"), enginePowerTo));
-        predicates.add(criteriaBuilder.greaterThanOrEqualTo(car.get("year"),localDateTime.getYear() - maxYearsOld));
+        if(transmission != null && !transmission.isEmpty()) predicates.add(criteriaBuilder.like(car.get("transmission"), "%" + transmission + "%"));
-
+        if(fuelType != null && !fuelType.isEmpty()) predicates.add(criteriaBuilder.like(car.get("fuel"), "%" + fuelType + "%"));
-        predicates.add(criteriaBuilder.greaterThanOrEqualTo(car.get("engine_power"), enginePower));
+        if(driveType != null && !driveType.isEmpty()) predicates.add(criteriaBuilder.like(car.get("drivetype"), "%" + driveType + "%"));
-        predicates.add(criteriaBuilder.like(car.get("transmission"), "%" + transmission + "%"));
+        if(seats != null) predicates.add(criteriaBuilder.equal(car.get("seats"), seats));
-        predicates.add(criteriaBuilder.like(car.get("fuel"), "%" + fuelType + "%"));
+        if(doors != null) predicates.add(criteriaBuilder.equal(car.get("doors"), doors));
-        predicates.add(criteriaBuilder.like(car.get("drivetype"), "%" + fuelType + "%"));
 
         cq.where(predicates.toArray(new Predicate[0]));
-
         return em.createQuery(cq).getResultList();
     }
 }

cars4you/src/main/java/com/cars/car4you/repository/CustomCarRepository.java

@@ -8,9 +8,9 @@ import java.util.List;
 
 @Repository
 public interface CustomCarRepository {
-    List<Car> findByCriterion(int maxPrice, int maxYearsOld,
+    List<Car> findByCriterion(Integer maxPrice, Integer maxYearsOld,
-                              int seats, CarType carType,
+                              Integer seats, Integer doors, String bodyType,
                               String fuelTypes,
-                              String transmission, int enginePower, String drivetype);
+                              String transmission, Integer enginePowerFrom, Integer enginePowerTo, String drivetype);
 
 }

cars4you/src/main/java/com/cars/car4you/service/CarService.java

@@ -0,0 +1,75 @@
+package com.cars.car4you.service;
+
+import com.cars.car4you.dto.CarDto;
+import com.cars.car4you.model.Car;
+import com.cars.car4you.repository.CarRepository;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+@Service
+public class CarService {
+
+    @Autowired
+    CarRepository carRepository;
+
+    public CarDto mapCarModelToCarDto(Car car){
+        CarDto carDto = new CarDto();
+
+        // Parametry konieczne do przeniesienia z modelu Car (tabela car)
+        carDto.setYear(car.getYear());
+        carDto.setEngine_power(car.getEngine_power());
+        carDto.setEngine_capacity(car.getEngine_capacity());
+        carDto.setFuel(car.getFuel());
+        carDto.setTransmission(car.getTransmission());
+        carDto.setDrive(car.getDrive());
+        carDto.setBody_type(car.getBody_type());
+        carDto.setDoors(car.getDoors());
+        carDto.setSeats(car.getSeats());
+
+        // ceny
+        carDto.setPrice_from(car.getPrice_from());
+        carDto.setPrice_to(car.getPrice_to());
+        carDto.setAverage(car.getAvarage());
+
+        // Parametry konieczne do przepisania z CarDetails (cars_details)
+        carDto.setBrand(car.getCarDetails().getBrand());
+        carDto.setModel(car.getCarDetails().getModel());
+        carDto.setVersion(car.getCarDetails().getVersion());
+
+        // Jeśli w (cars_details) kolumny dodatkowe są wypełnione to aktualizujemy model o nowe dane
+        if(car.getCarDetails().getPrice_from() != null ) {
+            carDto.setPrice_from(car.getCarDetails().getPrice_from());
+            carDto.setPrice_to(car.getCarDetails().getPrice_to());
+            carDto.setAverage(car.getCarDetails().getAverage());
+            carDto.setCar_cons(car.getCarDetails().getCar_cons());
+            carDto.setCar_pros(car.getCarDetails().getCar_pros());
+            carDto.setRating(car.getCarDetails().getRating());
+        }
+
+        return carDto;
+    }
+
+    private List<CarDto> convertListToDtoList(List<Car> cars){
+        return cars.stream()
+                .map(this::mapCarModelToCarDto)
+                .collect(Collectors.toList());
+    }
+
+    private List<CarDto> processList(List<CarDto> carsToBeProcessed){
+        // TODO do the magic, preprocess list to get better values and sort elements
+        return carsToBeProcessed;
+    }
+
+    public List<CarDto> searchForCars(String fuelType, Integer seats, Integer doors, Integer maxPrice,
+                                      Integer maxYearsOld, Integer enginePowerFrom, Integer enginePowerTo,
+                                      String bodyType, String gearbox, String driveType) {
+
+        List<Car> rawCars = carRepository.findByCriterion(maxPrice, maxYearsOld, seats, doors, bodyType, fuelType, gearbox, enginePowerFrom, enginePowerTo, driveType);
+        List<CarDto> carDtos = convertListToDtoList(rawCars);
+        return processList(carDtos);
+    }
+
+}