Completed all points in Readme

pom.xml

@@ -30,6 +30,28 @@
             <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-starter-data-jpa</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <optional>true</optional>
+        </dependency>
+        <dependency>
+            <groupId>javax.validation</groupId>
+            <artifactId>validation-api</artifactId>
+            <version>2.0.1.Final</version>
+        </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 javax.validation.Valid;
+import lombok.AllArgsConstructor;
+import mate.academy.springboot.datajpa.dto.request.CategoryRequestDto;
+import mate.academy.springboot.datajpa.dto.response.CategoryResponseDto;
+import mate.academy.springboot.datajpa.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;
+
+@AllArgsConstructor
+@RestController
+@RequestMapping("/categories")
+public class CategoryController {
+    private final CategoryService categoryService;
+    private final DtoMapper<CategoryRequestDto, CategoryResponseDto, Category> categoryMapper;
+
+    @PostMapping
+    public CategoryResponseDto create(@RequestBody @Valid CategoryRequestDto categoryRequestDto) {
+        return categoryMapper.mapToDto(categoryService.save(
+                categoryMapper.mapToEntity(categoryRequestDto)));
+    }
+
+    @GetMapping("/{id}")
+    public CategoryResponseDto get(@PathVariable Long id) {
+        return categoryMapper.mapToDto(categoryService.getById(id));
+    }
+
+    @PutMapping("/{id}")
+    public CategoryResponseDto update(@PathVariable Long id,
+                                      @RequestBody @Valid CategoryRequestDto categoryRequestDto) {
+        Category category = categoryMapper.mapToEntity(categoryRequestDto);
+        category.setId(id);
+        return categoryMapper.mapToDto(categoryService.save(category));
+    }
+
+    @DeleteMapping("/{id}")
+    public void delete(@PathVariable Long id) {
+        categoryService.deleteById(id);
+    }
+}

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.Set;
+import java.util.stream.Collectors;
+import javax.validation.Valid;
+import javax.validation.constraints.Positive;
+import lombok.AllArgsConstructor;
+import mate.academy.springboot.datajpa.dto.request.ProductRequestDto;
+import mate.academy.springboot.datajpa.dto.response.ProductResponseDto;
+import mate.academy.springboot.datajpa.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<ProductRequestDto, ProductResponseDto, Product> productMapper;
+
+    @PostMapping
+    public ProductResponseDto create(@RequestBody @Valid ProductRequestDto productRequestDto) {
+        Product product = productMapper.mapToEntity(productRequestDto);
+        return productMapper.mapToDto(productService.save(product));
+    }
+
+    @GetMapping("/{id}")
+    public ProductResponseDto get(@PathVariable Long id) {
+        return productMapper.mapToDto(productService.getById(id));
+    }
+
+    @GetMapping("/by-price")
+    public List<ProductResponseDto> getAllByPrice(@RequestParam @Positive BigDecimal from,
+                                                  @RequestParam @Positive BigDecimal to) {
+        return productService.getAllByPricePriceBetween(from, to).stream()
+                .map(productMapper::mapToDto)
+                .collect(Collectors.toList());
+    }
+
+    @GetMapping("/by-categories")
+    public List<ProductResponseDto> getAllByCategories(@RequestParam Set<String> categoryIds) {
+        return productService.getAllByCategoryNameIn(categoryIds).stream()
+                .map(productMapper::mapToDto)
+                .collect(Collectors.toList());
+    }
+
+    @PutMapping("/{id}")
+    public ProductResponseDto update(@PathVariable Long id,
+                                     @RequestBody @Valid ProductRequestDto productRequestDto) {
+        Product product = productMapper.mapToEntity(productRequestDto);
+        product.setId(id);
+        return productMapper.mapToDto(productService.save(product));
+    }
+
+    @DeleteMapping("/{id}")
+    public void delete(@PathVariable Long id) {
+        productService.deleteById(id);
+    }
+}

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

@@ -0,0 +1,10 @@
+package mate.academy.springboot.datajpa.dto.request;
+
+import javax.validation.constraints.NotNull;
+import lombok.Data;
+
+@Data
+public class CategoryRequestDto {
+    @NotNull
+    private String name;
+}

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

@@ -0,0 +1,16 @@
+package mate.academy.springboot.datajpa.dto.request;
+
+import java.math.BigDecimal;
+import javax.validation.constraints.NotNull;
+import javax.validation.constraints.Positive;
+import lombok.Data;
+
+@Data
+public class ProductRequestDto {
+    @Positive
+    private BigDecimal price;
+    @NotNull
+    private String title;
+    @Positive
+    private Long categoryId;
+}

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

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

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

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

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

@@ -0,0 +1,4 @@
+package mate.academy.springboot.datajpa.mapper;
+
+public interface DtoMapper<D, R, T> extends RequestDtoMapper<D, T>, ResponseDtoMapper<T, R> {
+}

src/main/java/mate/academy/springboot/datajpa/mapper/RequestDtoMapper.java

@@ -0,0 +1,5 @@
+package mate.academy.springboot.datajpa.mapper;
+
+public interface RequestDtoMapper<D, T> {
+    T mapToEntity(D dto);
+}

src/main/java/mate/academy/springboot/datajpa/mapper/ResponseDtoMapper.java

@@ -0,0 +1,5 @@
+package mate.academy.springboot.datajpa.mapper;
+
+public interface ResponseDtoMapper<T, D> {
+    D mapToDto(T entity);
+}

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

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

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

@@ -0,0 +1,30 @@
+package mate.academy.springboot.datajpa.mapper.impl;
+
+import mate.academy.springboot.datajpa.dto.request.ProductRequestDto;
+import mate.academy.springboot.datajpa.dto.response.ProductResponseDto;
+import mate.academy.springboot.datajpa.mapper.DtoMapper;
+import mate.academy.springboot.datajpa.model.Category;
+import mate.academy.springboot.datajpa.model.Product;
+import org.springframework.stereotype.Component;
+
+@Component
+public class ProductMapper implements DtoMapper<ProductRequestDto, ProductResponseDto, Product> {
+    @Override
+    public Product mapToEntity(ProductRequestDto dto) {
+        Product product = new Product();
+        product.setPrice(dto.getPrice());
+        product.setTitle(dto.getTitle());
+        product.setCategory(new Category(dto.getCategoryId()));
+        return product;
+    }
+
+    @Override
+    public ProductResponseDto mapToDto(Product entity) {
+        ProductResponseDto productResponseDto = new ProductResponseDto();
+        productResponseDto.setId(entity.getId());
+        productResponseDto.setTitle(entity.getTitle());
+        productResponseDto.setPrice(entity.getPrice());
+        productResponseDto.setCategoriesId(entity.getCategory().getId());
+        return productResponseDto;
+    }
+}

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

@@ -0,0 +1,27 @@
+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.Table;
+import lombok.EqualsAndHashCode;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+
+@Getter
+@Setter
+@NoArgsConstructor
+@EqualsAndHashCode
+@Entity
+@Table(name = "categories")
+public class Category {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+    private String name;
+
+    public Category(Long categoryId) {
+    }
+}

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

@@ -0,0 +1,28 @@
+package mate.academy.springboot.datajpa.model;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.FetchType;
+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.EqualsAndHashCode;
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+@EqualsAndHashCode
+@Entity
+@Table(name = "products")
+public class Product {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+    private String title;
+    private BigDecimal price;
+    @ManyToOne(fetch = FetchType.LAZY)
+    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 +1,15 @@
+package mate.academy.springboot.datajpa.repository;
+
+import java.math.BigDecimal;
+import java.util.Collection;
+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> getAllProductsByPriceBetween(BigDecimal from, BigDecimal to);
+
+    List<Product> getAllProductsByCategoryNameIn(Collection<String> categoriesName);
+}

src/main/java/mate/academy/springboot/datajpa/service/CategoryService.java

@@ -0,0 +1,11 @@
+package mate.academy.springboot.datajpa.service;
+
+import mate.academy.springboot.datajpa.model.Category;
+
+public interface CategoryService {
+    Category save(Category categoryMapper);
+
+    Category getById(Long id);
+
+    void deleteById(Long id);
+}

src/main/java/mate/academy/springboot/datajpa/service/ProductService.java

@@ -0,0 +1,20 @@
+package mate.academy.springboot.datajpa.service;
+
+import java.math.BigDecimal;
+import java.util.List;
+import java.util.Set;
+import mate.academy.springboot.datajpa.model.Product;
+
+public interface ProductService {
+    Product save(Product product);
+
+    Product getById(Long id);
+
+    void deleteById(Long id);
+
+    List<Product> getAll();
+
+    List<Product> getAllByPricePriceBetween(BigDecimal from, BigDecimal to);
+
+    List<Product> getAllByCategoryNameIn(Set<String> categories);
+}