init structure, add liquibase

pom.xml

@@ -19,6 +19,8 @@
 		<maven.checkstyle.plugin.configLocation>
 			https://raw.githubusercontent.com/mate-academy/style-guides/master/java/checkstyle.xml
 		</maven.checkstyle.plugin.configLocation>
+		<lombok.mapstruct.binding.version>0.2.0</lombok.mapstruct.binding.version>
+		<mapstruct.version>1.5.5.Final</mapstruct.version>
 	</properties>
 	<dependencies>
 		<dependency>
@@ -37,14 +39,67 @@
 			<artifactId>spring-boot-starter-data-jpa</artifactId>
 		</dependency>
 
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-web</artifactId>
+		</dependency>
+
 		<dependency>
 			<groupId>com.h2database</groupId>
 			<artifactId>h2</artifactId>
 		</dependency>
+
+		<dependency>
+			<groupId>mysql</groupId>
+			<artifactId>mysql-connector-java</artifactId>
+			<version>8.0.33</version>
+		</dependency>
+
+		<dependency>
+			<groupId>org.projectlombok</groupId>
+			<artifactId>lombok</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>org.mapstruct</groupId>
+			<artifactId>mapstruct</artifactId>
+			<version>${mapstruct.version}</version>
+		</dependency>
+
+		<dependency>
+			<groupId>org.liquibase</groupId>
+			<artifactId>liquibase-core</artifactId>
+			<version>${liquibase.version}</version>
+		</dependency>
 	</dependencies>
 
 	<build>
 		<plugins>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-compiler-plugin</artifactId>
+				<configuration>
+					<source>${java.version}</source>
+					<target>${java.version}</target>
+					<annotationProcessorPaths>
+						<path>
+							<groupId>org.projectlombok</groupId>
+							<artifactId>lombok</artifactId>
+							<version>${lombok.version}</version>
+						</path>
+						<path>
+							<groupId>org.projectlombok</groupId>
+							<artifactId>lombok-mapstruct-binding</artifactId>
+							<version>${lombok.mapstruct.binding.version}</version>
+						</path>
+						<path>
+							<groupId>org.mapstruct</groupId>
+							<artifactId>mapstruct-processor</artifactId>
+							<version>${mapstruct.version}</version>
+						</path>
+					</annotationProcessorPaths>
+				</configuration>
+			</plugin>
 			<plugin>
 				<groupId>org.springframework.boot</groupId>
 				<artifactId>spring-boot-maven-plugin</artifactId>
@@ -68,6 +123,29 @@
 					<linkXRef>false</linkXRef>
 				</configuration>
 			</plugin>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-checkstyle-plugin</artifactId>
+				<version>3.3.0</version>
+				<executions>
+					<execution>
+						<phase>compile</phase>
+						<goals>
+							<goal>check</goal>
+						</goals>
+					</execution>
+				</executions>
+				<configuration>
+					<configLocation>${maven.checkstyle.plugin.configLocation}</configLocation>
+					<inputEncoding>UTF-8</inputEncoding>
+					<outputEncoding>UTF-8</outputEncoding>
+					<consoleOutput>true</consoleOutput>
+					<failsOnError>true</failsOnError>
+					<linkXRef>false</linkXRef>
+					<sourceDirectories>src</sourceDirectories>
+				</configuration>
+			</plugin>
+
 		</plugins>
 	</build>
 

src/main/java/mate/academy/rickandmorty/api/util/DbLoader.java

@@ -0,0 +1,21 @@
+package mate.academy.rickandmorty.api.util;
+
+import jakarta.annotation.PostConstruct;
+import lombok.RequiredArgsConstructor;
+import mate.academy.rickandmorty.repository.PersonageRepository;
+import org.springframework.stereotype.Component;
+
+@Component
+@RequiredArgsConstructor
+public class DbLoader {
+    private final RickAndMortyApiClient rickAndMortyApiClient;
+    private final PersonageRepository personageRepository;
+
+    @PostConstruct
+    public void init() {
+        if (personageRepository.count() == 0) {
+            personageRepository.saveAll(rickAndMortyApiClient.getAllPersonages());
+        }
+    }
+
+}

src/main/java/mate/academy/rickandmorty/api/util/RickAndMortyApiClient.java

@@ -0,0 +1,52 @@
+package mate.academy.rickandmorty.api.util;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import java.io.IOException;
+import java.net.URI;
+import java.net.http.HttpClient;
+import java.net.http.HttpRequest;
+import java.net.http.HttpResponse;
+import java.util.ArrayList;
+import java.util.List;
+import lombok.RequiredArgsConstructor;
+import mate.academy.rickandmorty.dto.external.ExternalResponseDto;
+import mate.academy.rickandmorty.dto.external.Result;
+import mate.academy.rickandmorty.mapper.PersonageMapper;
+import mate.academy.rickandmorty.model.Personage;
+import org.springframework.stereotype.Component;
+
+@Component
+@RequiredArgsConstructor
+public class RickAndMortyApiClient {
+    private static final String BASE_CHARACTER_URL = "https://rickandmortyapi.com/api/character";
+    private final ObjectMapper objectMapper;
+    private final PersonageMapper personageMapper;
+
+    public List<Personage> getAllPersonages() {
+        List<Result> resultList = new ArrayList<>();
+        ExternalResponseDto externalResponseDto = getExternalResponseDto(BASE_CHARACTER_URL);
+        while (externalResponseDto.getInfo().getNext() != null) {
+            resultList.addAll(externalResponseDto.getResultList());
+            externalResponseDto = getExternalResponseDto(externalResponseDto.getInfo().getNext());
+        }
+        return resultList
+                .stream()
+                .map(personageMapper::fromExternalResultToPersonage)
+                .toList();
+    }
+
+    private ExternalResponseDto getExternalResponseDto(String url) {
+        HttpClient httpClient = HttpClient.newHttpClient();
+        HttpRequest request = HttpRequest.newBuilder()
+                .GET()
+                .uri(URI.create(url))
+                .build();
+        try {
+            HttpResponse<String> response = httpClient.send(
+                    request, HttpResponse.BodyHandlers.ofString());
+            return objectMapper.readValue(response.body(), ExternalResponseDto.class);
+        } catch (IOException | InterruptedException e) {
+            throw new RuntimeException("Can't send request to url: " + url);
+        }
+    }
+}

src/main/java/mate/academy/rickandmorty/controller/RickAndMortyController.java

@@ -0,0 +1,30 @@
+package mate.academy.rickandmorty.controller;
+
+import java.util.List;
+import lombok.RequiredArgsConstructor;
+import mate.academy.rickandmorty.dto.internal.PersonageResponseDto;
+import mate.academy.rickandmorty.service.PersonageService;
+import org.springframework.data.domain.Pageable;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequiredArgsConstructor
+@RequestMapping("/rick-and-morty")
+public class RickAndMortyController {
+    private final PersonageService personageRepository;
+
+    @GetMapping("/random-personage")
+    public PersonageResponseDto getRandomPersonage() {
+        return personageRepository.getRandomPersonage();
+    }
+
+    @GetMapping("/search")
+    public List<PersonageResponseDto> getPersonageByName(
+            Pageable pageable, @RequestParam String name
+    ) {
+        return personageRepository.getPersonageByNameLike(pageable, name);
+    }
+}

src/main/java/mate/academy/rickandmorty/dto/external/ExternalResponseDto.java

@@ -0,0 +1,12 @@
+package mate.academy.rickandmorty.dto.external;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import java.util.List;
+import lombok.Data;
+
+@Data
+public class ExternalResponseDto {
+    private Info info;
+    @JsonProperty("results")
+    private List<Result> resultList;
+}

src/main/java/mate/academy/rickandmorty/dto/external/Info.java

@@ -0,0 +1,11 @@
+package mate.academy.rickandmorty.dto.external;
+
+import lombok.Data;
+
+@Data
+public class Info {
+    private Long count;
+    private Integer pages;
+    private String next;
+    private String prev;
+}

src/main/java/mate/academy/rickandmorty/dto/external/Result.java

@@ -0,0 +1,13 @@
+package mate.academy.rickandmorty.dto.external;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import lombok.Data;
+
+@Data
+public class Result {
+    @JsonProperty("id")
+    private Long externalId;
+    private String name;
+    private String status;
+    private String gender;
+}

src/main/java/mate/academy/rickandmorty/dto/internal/PersonageResponseDto.java

@@ -0,0 +1,8 @@
+package mate.academy.rickandmorty.dto.internal;
+
+public record PersonageResponseDto(Long id,
+                                   Long externalId,
+                                   String name,
+                                   String status,
+                                   String gender) {
+}

src/main/java/mate/academy/rickandmorty/mapper/PersonageMapper.java

@@ -0,0 +1,18 @@
+package mate.academy.rickandmorty.mapper;
+
+import mate.academy.rickandmorty.dto.external.Result;
+import mate.academy.rickandmorty.dto.internal.PersonageResponseDto;
+import mate.academy.rickandmorty.model.Personage;
+import org.mapstruct.InjectionStrategy;
+import org.mapstruct.Mapper;
+import org.mapstruct.NullValueCheckStrategy;
+
+@Mapper(componentModel = "spring",
+        injectionStrategy = InjectionStrategy.CONSTRUCTOR,
+        nullValueCheckStrategy = NullValueCheckStrategy.ALWAYS,
+        implementationPackage = "<PACKAGE_NAME>.impl")
+public interface PersonageMapper {
+    PersonageResponseDto toDto(Personage personage);
+
+    Personage fromExternalResultToPersonage(Result result);
+}

src/main/java/mate/academy/rickandmorty/model/Personage.java

@@ -0,0 +1,29 @@
+package mate.academy.rickandmorty.model;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.Table;
+import lombok.Data;
+
+@Entity
+@Data
+@Table(name = "personages")
+public class Personage {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @Column(name = "external_id", nullable = false)
+    private Long externalId;
+
+    @Column(nullable = false)
+    private String name;
+
+    @Column(nullable = false)
+    private String status;
+
+    private String gender;
+}

src/main/java/mate/academy/rickandmorty/repository/PersonageRepository.java

@@ -0,0 +1,16 @@
+package mate.academy.rickandmorty.repository;
+
+import java.util.List;
+import mate.academy.rickandmorty.model.Personage;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface PersonageRepository extends JpaRepository<Personage, Long> {
+    List<Personage> findAllByNameContains(Pageable pageable, String name);
+
+    @Query("from Personage p order by RAND() limit 1")
+    Personage findRandomPersonage();
+}

src/main/java/mate/academy/rickandmorty/service/PersonageService.java

@@ -0,0 +1,12 @@
+package mate.academy.rickandmorty.service;
+
+import java.util.List;
+import mate.academy.rickandmorty.dto.internal.PersonageResponseDto;
+import org.springframework.data.domain.Pageable;
+
+public interface PersonageService {
+
+    List<PersonageResponseDto> getPersonageByNameLike(Pageable pageable, String name);
+
+    PersonageResponseDto getRandomPersonage();
+}

src/main/java/mate/academy/rickandmorty/service/impl/PersonageServiceImpl.java

@@ -0,0 +1,32 @@
+package mate.academy.rickandmorty.service.impl;
+
+import java.util.List;
+import lombok.RequiredArgsConstructor;
+import mate.academy.rickandmorty.dto.internal.PersonageResponseDto;
+import mate.academy.rickandmorty.mapper.PersonageMapper;
+import mate.academy.rickandmorty.model.Personage;
+import mate.academy.rickandmorty.repository.PersonageRepository;
+import mate.academy.rickandmorty.service.PersonageService;
+import org.springframework.data.domain.Pageable;
+import org.springframework.stereotype.Service;
+
+@Service
+@RequiredArgsConstructor
+public class PersonageServiceImpl implements PersonageService {
+    private final PersonageRepository personageRepository;
+    private final PersonageMapper personageMapper;
+
+    @Override
+    public List<PersonageResponseDto> getPersonageByNameLike(Pageable pageable, String name) {
+        return personageRepository.findAllByNameContains(pageable, name)
+                .stream()
+                .map(personageMapper::toDto)
+                .toList();
+    }
+
+    @Override
+    public PersonageResponseDto getRandomPersonage() {
+        Personage randomPersonage = personageRepository.findRandomPersonage();
+        return personageMapper.toDto(randomPersonage);
+    }
+}

src/main/resources/application.properties

@@ -1 +1,9 @@
+spring.datasource.url=jdbc:mysql://localhost:3306/rick_and_morty
+spring.datasource.username=root
+spring.datasource.password=1234
+spring.datasource.driverClassName=com.mysql.cj.jdbc.Driver
 
+spring.jpa.hibernate.ddl-auto=validate
+spring.jpa.show-sql=true
+
+spring.jpa.open-in-view=false