solution jpa

pom.xml

@@ -30,6 +30,33 @@
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-autoconfigure</artifactId>
         </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-devtools</artifactId>
+            <scope>runtime</scope>
+            <optional>true</optional>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-jpa</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+        </dependency>
     </dependencies>
     <build>
         <plugins>

src/main/java/mate/academy/springboot/datajpa/controller/CategoryController.java

@@ -0,0 +1,49 @@
+package mate.academy.springboot.datajpa.controller;
+
+import lombok.RequiredArgsConstructor;
+import mate.academy.springboot.datajpa.dto.CategoryRequestDto;
+import mate.academy.springboot.datajpa.dto.CategoryResponseDto;
+import mate.academy.springboot.datajpa.dto.mapper.DtoMapper;
+import mate.academy.springboot.datajpa.model.Category;
+import mate.academy.springboot.datajpa.service.CategoryService;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("/categories")
+@RequiredArgsConstructor
+public class CategoryController {
+    private final CategoryService categoryService;
+    private final DtoMapper<Category, CategoryResponseDto, CategoryRequestDto> categoryMapper;
+
+    @PostMapping
+    public CategoryResponseDto create(@RequestBody CategoryRequestDto requestDto) {
+        Category category = categoryService.create(categoryMapper.mapToModel(requestDto));
+        return categoryMapper.mapToDto(category);
+    }
+
+    @GetMapping("{id}")
+    public CategoryResponseDto getById(@PathVariable Long id) {
+        Category category = categoryService.getById(id);
+        return categoryMapper.mapToDto(category);
+    }
+
+    @DeleteMapping("{id}")
+    public void delete(@PathVariable Long id) {
+        categoryService.delete(id);
+    }
+
+    @PutMapping("/{id}")
+    public CategoryResponseDto update(@PathVariable Long id,
+                               @RequestBody CategoryRequestDto requestDto) {
+        Category category = categoryMapper.mapToModel(requestDto);
+        category.setId(id);
+        return categoryMapper.mapToDto(categoryService.create(category));
+    }
+}

src/main/java/mate/academy/springboot/datajpa/controller/InjectController.java

@@ -0,0 +1,48 @@
+package mate.academy.springboot.datajpa.controller;
+
+import java.math.BigDecimal;
+import lombok.AllArgsConstructor;
+import mate.academy.springboot.datajpa.model.Category;
+import mate.academy.springboot.datajpa.model.Product;
+import mate.academy.springboot.datajpa.service.CategoryService;
+import mate.academy.springboot.datajpa.service.ProductService;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@AllArgsConstructor
+@RestController
+@RequestMapping("/inject")
+public class InjectController {
+    private final ProductService productService;
+    private final CategoryService categoryService;
+
+    @GetMapping
+    public String injectData() {
+        Category phones = new Category();
+        phones.setName("Phones");
+        categoryService.create(phones);
+        Category macBook = new Category();
+        macBook.setName("Laptop");
+        categoryService.create(macBook);
+
+        Product iphoneX = new Product();
+        iphoneX.setTitle("Iphone X");
+        iphoneX.setPrice(BigDecimal.valueOf(999));
+        iphoneX.setCategory(phones);
+        productService.create(iphoneX);
+
+        Product iphone12 = new Product();
+        iphone12.setTitle("Iphone 12");
+        iphone12.setPrice(BigDecimal.valueOf(1299));
+        iphone12.setCategory(phones);
+        productService.create(iphone12);
+
+        Product airMax = new Product();
+        airMax.setTitle("MacBook Air");
+        airMax.setPrice(BigDecimal.valueOf(2100));
+        airMax.setCategory(macBook);
+        productService.create(airMax);
+        return "Done";
+    }
+}

src/main/java/mate/academy/springboot/datajpa/controller/ProductController.java

@@ -0,0 +1,70 @@
+package mate.academy.springboot.datajpa.controller;
+
+import java.math.BigDecimal;
+import java.util.List;
+import java.util.stream.Collectors;
+import lombok.AllArgsConstructor;
+import mate.academy.springboot.datajpa.dto.ProductRequestDto;
+import mate.academy.springboot.datajpa.dto.ProductResponseDto;
+import mate.academy.springboot.datajpa.dto.mapper.DtoMapper;
+import mate.academy.springboot.datajpa.model.Product;
+import mate.academy.springboot.datajpa.service.ProductService;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.PutMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+@AllArgsConstructor
+@RestController
+@RequestMapping("/products")
+public class ProductController {
+    private final ProductService productService;
+    private final DtoMapper<Product, ProductResponseDto, ProductRequestDto> productMapper;
+
+    @PostMapping
+    public ProductResponseDto create(@RequestBody ProductRequestDto productRequestDto) {
+        Product product = productService.create(productMapper.mapToModel(productRequestDto));
+        return productMapper.mapToDto(product);
+    }
+
+    @GetMapping("/{id}")
+    public ProductResponseDto getById(@PathVariable Long id) {
+        return productMapper.mapToDto(productService.getById(id));
+    }
+
+    @DeleteMapping("/{id}")
+    public void delete(@PathVariable Long id) {
+        productService.delete(id);
+    }
+
+    @PutMapping("/{id}")
+    public ProductResponseDto update(@PathVariable Long id,
+                                     @RequestBody ProductRequestDto productRequestDto) {
+        Product product = productMapper.mapToModel(productRequestDto);
+        product.setId(id);
+        productService.update(product);
+        return productMapper.mapToDto(product);
+    }
+
+    @GetMapping("/price-between")
+    public List<ProductResponseDto> findAllByPriceBetween(@RequestParam BigDecimal from,
+                                                          @RequestParam BigDecimal to) {
+        return productService.findAllByPriceBetween(from, to)
+                .stream()
+                .map(productMapper::mapToDto)
+                .collect(Collectors.toList());
+    }
+
+    @GetMapping("/by-category")
+    public List<ProductResponseDto> findAllByCategoryIn(@RequestParam List<String> categories) {
+        return productService.findAllByCategoryNameIn(categories)
+                .stream()
+                .map(productMapper::mapToDto)
+                .collect(Collectors.toList());
+    }
+}

src/main/java/mate/academy/springboot/datajpa/dto/CategoryRequestDto.java

@@ -0,0 +1,8 @@
+package mate.academy.springboot.datajpa.dto;
+
+import lombok.Data;
+
+@Data
+public class CategoryRequestDto {
+    private String name;
+}

src/main/java/mate/academy/springboot/datajpa/dto/CategoryResponseDto.java

@@ -0,0 +1,9 @@
+package mate.academy.springboot.datajpa.dto;
+
+import lombok.Data;
+
+@Data
+public class CategoryResponseDto {
+    private Long id;
+    private String name;
+}

src/main/java/mate/academy/springboot/datajpa/dto/ProductRequestDto.java

@@ -0,0 +1,11 @@
+package mate.academy.springboot.datajpa.dto;
+
+import java.math.BigDecimal;
+import lombok.Data;
+
+@Data
+public class ProductRequestDto {
+    private String title;
+    private BigDecimal price;
+    private Long categoryId;
+}

src/main/java/mate/academy/springboot/datajpa/dto/ProductResponseDto.java

@@ -0,0 +1,12 @@
+package mate.academy.springboot.datajpa.dto;
+
+import java.math.BigDecimal;
+import lombok.Data;
+
+@Data
+public class ProductResponseDto {
+    private Long id;
+    private String title;
+    private BigDecimal price;
+    private Long categoryId;
+}

src/main/java/mate/academy/springboot/datajpa/dto/mapper/CategoryMapper.java

@@ -0,0 +1,26 @@
+package mate.academy.springboot.datajpa.dto.mapper;
+
+import mate.academy.springboot.datajpa.dto.CategoryRequestDto;
+import mate.academy.springboot.datajpa.dto.CategoryResponseDto;
+import mate.academy.springboot.datajpa.model.Category;
+import org.springframework.stereotype.Component;
+
+@Component
+public class CategoryMapper implements
+        DtoMapper<Category, CategoryResponseDto, CategoryRequestDto> {
+
+    @Override
+    public Category mapToModel(CategoryRequestDto dto) {
+        Category category = new Category();
+        category.setName(dto.getName());
+        return category;
+    }
+
+    @Override
+    public CategoryResponseDto mapToDto(Category category) {
+        CategoryResponseDto categoryResponseDto = new CategoryResponseDto();
+        categoryResponseDto.setId(category.getId());
+        categoryResponseDto.setName(category.getName());
+        return categoryResponseDto;
+    }
+}

src/main/java/mate/academy/springboot/datajpa/dto/mapper/DtoMapper.java

@@ -0,0 +1,7 @@
+package mate.academy.springboot.datajpa.dto.mapper;
+
+public interface DtoMapper<M, D, R> {
+    D mapToDto(M model);
+
+    M mapToModel(R dto);
+}

src/main/java/mate/academy/springboot/datajpa/dto/mapper/ProductMapper.java

@@ -0,0 +1,35 @@
+package mate.academy.springboot.datajpa.dto.mapper;
+
+import mate.academy.springboot.datajpa.dto.ProductRequestDto;
+import mate.academy.springboot.datajpa.dto.ProductResponseDto;
+import mate.academy.springboot.datajpa.model.Product;
+import mate.academy.springboot.datajpa.service.CategoryService;
+import org.springframework.stereotype.Component;
+
+@Component
+public class ProductMapper implements DtoMapper<Product, ProductResponseDto, ProductRequestDto> {
+    private final CategoryService categoryService;
+
+    public ProductMapper(CategoryService categoryService) {
+        this.categoryService = categoryService;
+    }
+
+    @Override
+    public Product mapToModel(ProductRequestDto dto) {
+        Product product = new Product();
+        product.setTitle(dto.getTitle());
+        product.setPrice(dto.getPrice());
+        product.setCategory(categoryService.getById(dto.getCategoryId()));
+        return product;
+    }
+
+    @Override
+    public ProductResponseDto mapToDto(Product product) {
+        ProductResponseDto productResponseDto = new ProductResponseDto();
+        productResponseDto.setId(product.getId());
+        productResponseDto.setTitle(product.getTitle());
+        productResponseDto.setPrice(product.getPrice());
+        productResponseDto.setCategoryId(product.getCategory().getId());
+        return productResponseDto;
+    }
+}

src/main/java/mate/academy/springboot/datajpa/model/Category.java

@@ -0,0 +1,16 @@
+package mate.academy.springboot.datajpa.model;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import lombok.Data;
+
+@Data
+@Entity
+public class Category {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+    private String name;
+}

src/main/java/mate/academy/springboot/datajpa/model/Product.java

@@ -0,0 +1,25 @@
+package mate.academy.springboot.datajpa.model;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.ManyToOne;
+import jakarta.persistence.Table;
+import java.math.BigDecimal;
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+@Entity
+@Table(name = "products")
+public class Product {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+    private String title;
+    private BigDecimal price;
+    @ManyToOne
+    private Category category;
+}

src/main/java/mate/academy/springboot/datajpa/repository/CategoryRepository.java

@@ -0,0 +1,9 @@
+package mate.academy.springboot.datajpa.repository;
+
+import mate.academy.springboot.datajpa.model.Category;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface CategoryRepository extends JpaRepository<Category, Long> {
+}

src/main/java/mate/academy/springboot/datajpa/repository/ProductRepository.java

@@ -0,0 +1,14 @@
+package mate.academy.springboot.datajpa.repository;
+
+import java.math.BigDecimal;
+import java.util.List;
+import mate.academy.springboot.datajpa.model.Product;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface ProductRepository extends JpaRepository<Product, Long> {
+    List<Product> findAllByPriceBetween(BigDecimal from, BigDecimal to);
+
+    List<Product> findAllByCategoryNameIn(List<String> categories);
+}