init commit

pom.xml

@@ -19,6 +19,7 @@
 		<maven.checkstyle.plugin.configLocation>
 			https://raw.githubusercontent.com/mate-academy/style-guides/master/java/checkstyle.xml
 		</maven.checkstyle.plugin.configLocation>
+		<springdoc.version>2.5.0</springdoc.version>
 	</properties>
 	<dependencies>
 		<dependency>
@@ -41,6 +42,49 @@
 			<groupId>com.h2database</groupId>
 			<artifactId>h2</artifactId>
 		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-web</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>org.hibernate.orm</groupId>
+			<artifactId>hibernate-core</artifactId>
+			<version>${hibernate.version}</version>
+		</dependency>
+
+		<dependency>
+			<groupId>org.projectlombok</groupId>
+			<artifactId>lombok</artifactId>
+			<version>${lombok.version}</version>
+			<scope>provided</scope>
+		</dependency>
+
+		<dependency>
+			<groupId>com.mysql</groupId>
+			<artifactId>mysql-connector-j</artifactId>
+			<version>${mysql.version}</version>
+		</dependency>
+
+		<dependency>
+			<groupId>com.fasterxml.jackson.core</groupId>
+			<artifactId>jackson-databind</artifactId>
+			<version>${jackson-bom.version}</version>
+		</dependency>
+
+		<dependency>
+			<groupId>org.apache.httpcomponents.client5</groupId>
+			<artifactId>httpclient5</artifactId>
+			<version>${httpclient5.version}</version>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springdoc</groupId>
+			<artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>
+			<version>${springdoc.version}</version>
+		</dependency>
+
 	</dependencies>
 
 	<build>

src/main/java/mate/academy/rickandmorty/config/CustomApplicationRunner.java

@@ -0,0 +1,18 @@
+package mate.academy.rickandmorty.config;
+
+import lombok.RequiredArgsConstructor;
+import mate.academy.rickandmorty.utils.DataFetcher;
+import org.springframework.boot.ApplicationArguments;
+import org.springframework.boot.ApplicationRunner;
+import org.springframework.stereotype.Component;
+
+@Component
+@RequiredArgsConstructor
+public class CustomApplicationRunner implements ApplicationRunner {
+    private final DataFetcher dataFetcher;
+
+    @Override
+    public void run(ApplicationArguments args) {
+        dataFetcher.populateCharactersDB();
+    }
+}

src/main/java/mate/academy/rickandmorty/config/RestTemplateConfig.java

@@ -0,0 +1,31 @@
+package mate.academy.rickandmorty.config;
+
+import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
+import org.apache.hc.client5.http.impl.classic.HttpClients;
+import org.apache.hc.client5.http.impl.io.PoolingHttpClientConnectionManager;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
+import org.springframework.web.client.RestTemplate;
+
+@Configuration
+public class RestTemplateConfig {
+
+    @Bean
+    public RestTemplate restTemplate() {
+        HttpComponentsClientHttpRequestFactory httpRequestFactory
+                = new HttpComponentsClientHttpRequestFactory();
+        httpRequestFactory.setHttpClient(httpClient());
+        return new RestTemplate(httpRequestFactory);
+    }
+
+    @Bean
+    public CloseableHttpClient httpClient() {
+        PoolingHttpClientConnectionManager connManager = new PoolingHttpClientConnectionManager();
+        connManager.setMaxTotal(100);
+        connManager.setDefaultMaxPerRoute(20);
+        return HttpClients.custom()
+                .setConnectionManager(connManager)
+                .build();
+    }
+}

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

@@ -0,0 +1,36 @@
+package mate.academy.rickandmorty.controller;
+
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import java.util.List;
+import lombok.RequiredArgsConstructor;
+import mate.academy.rickandmorty.model.Character;
+import mate.academy.rickandmorty.service.CharacterService;
+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;
+
+@Tag(name = "Rick and Morty character management",
+        description = "Endpoints for managing characters")
+@RestController
+@RequestMapping("/characters")
+@RequiredArgsConstructor
+public class CharacterController {
+    private final CharacterService characterService;
+
+    @Operation(summary = "Get one character",
+            description = "Get random character from Rick and Morty universe")
+    @GetMapping
+    public Character getRandomCharacter() {
+        return characterService.generateRandomCharacter();
+    }
+
+    @Operation(summary = "Get list of characters by name contains 'row'",
+            description = "Get list of character from Rick and Morty universe "
+                    + "where character name like '%:row%'")
+    @GetMapping("/byNameContains")
+    public List<Character> findCharacterNameContains(@RequestParam String row) {
+        return characterService.findCharacterNameContains(row);
+    }
+}

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

@@ -0,0 +1,28 @@
+package mate.academy.rickandmorty.model;
+
+import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
+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.Getter;
+import lombok.Setter;
+import mate.academy.rickandmorty.utils.CharacterDeserializer;
+
+@Entity
+@Getter
+@Setter
+@Table(name = "characters")
+@JsonDeserialize(using = CharacterDeserializer.class)
+public class Character {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+    @Column(name = "external_id")
+    private Long externalId;
+    private String name;
+    private String status;
+    private String gender;
+}

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

@@ -0,0 +1,13 @@
+package mate.academy.rickandmorty.repository;
+
+import java.util.List;
+import mate.academy.rickandmorty.model.Character;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface CharacterRepository extends JpaRepository<Character, Long> {
+    @Query("SELECT c FROM Character c WHERE LOWER(c.name) LIKE %:row%")
+    List<Character> findByNameContainsIgnoreCase(String row);
+}

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

@@ -0,0 +1,10 @@
+package mate.academy.rickandmorty.service;
+
+import java.util.List;
+import mate.academy.rickandmorty.model.Character;
+
+public interface CharacterService {
+    Character generateRandomCharacter();
+
+    List<Character> findCharacterNameContains(String row);
+}

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

@@ -0,0 +1,33 @@
+package mate.academy.rickandmorty.service.impl;
+
+import jakarta.transaction.Transactional;
+import java.util.List;
+import java.util.Optional;
+import java.util.Random;
+import lombok.RequiredArgsConstructor;
+import mate.academy.rickandmorty.model.Character;
+import mate.academy.rickandmorty.repository.CharacterRepository;
+import mate.academy.rickandmorty.service.CharacterService;
+import org.springframework.stereotype.Service;
+
+@Service
+@RequiredArgsConstructor
+public class CharacterServiceImpl implements CharacterService {
+    private final CharacterRepository characterRepository;
+    private Random random = new Random();
+
+    @Override
+    @Transactional
+    public Character generateRandomCharacter() {
+        long charactersAmount = characterRepository.count();
+        long id = random.nextLong(charactersAmount);
+        return Optional.of(characterRepository.findById(id))
+                .get()
+                .orElseThrow(() -> new IllegalStateException("Character not found with id: " + id));
+    }
+
+    @Override
+    public List<Character> findCharacterNameContains(String row) {
+        return characterRepository.findByNameContainsIgnoreCase(row);
+    }
+}

src/main/java/mate/academy/rickandmorty/utils/CharacterDeserializer.java

@@ -0,0 +1,36 @@
+package mate.academy.rickandmorty.utils;
+
+import com.fasterxml.jackson.core.JacksonException;
+import com.fasterxml.jackson.core.JsonParser;
+import com.fasterxml.jackson.databind.DeserializationContext;
+import com.fasterxml.jackson.databind.JsonDeserializer;
+import com.fasterxml.jackson.databind.JsonNode;
+import java.io.IOException;
+import mate.academy.rickandmorty.model.Character;
+
+public class CharacterDeserializer extends JsonDeserializer<Character> {
+    private static final String ID = "id";
+    private static final String NAME = "name";
+    private static final String STATUS = "status";
+    private static final String GENDER = "gender";
+
+    @Override
+    public Character deserialize(JsonParser jsonParser,
+                                 DeserializationContext deserializationContext)
+            throws IOException, JacksonException {
+        JsonNode treeNode = jsonParser.getCodec().readTree(jsonParser);
+
+        String id = treeNode.get(ID).asText();
+        String name = treeNode.get(NAME).asText();
+        String status = treeNode.get(STATUS).asText();
+        String gender = treeNode.get(GENDER).asText();
+
+        Character character = new Character();
+        character.setExternalId(Long.valueOf(id));
+        character.setName(name);
+        character.setStatus(status);
+        character.setGender(gender);
+
+        return character;
+    }
+}

src/main/java/mate/academy/rickandmorty/utils/DataFetcher.java

@@ -0,0 +1,61 @@
+package mate.academy.rickandmorty.utils;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import java.util.List;
+import lombok.RequiredArgsConstructor;
+import mate.academy.rickandmorty.model.Character;
+import mate.academy.rickandmorty.repository.CharacterRepository;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Component;
+import org.springframework.web.client.RestTemplate;
+
+@Component
+@RequiredArgsConstructor
+public class DataFetcher {
+    private static final String ROOT_INFO = "info";
+    private static final String ROOT_RESULTS = "results";
+    private static final String ROOT_NEXT = "next";
+    private static final String NULL_VALUE = "null";
+    private final RestTemplate restTemplate;
+    private final ObjectMapper objectMapper;
+    private final CharacterRepository characterRepository;
+    @Value("${characters.url}")
+    private String characterUrl;
+
+    public void populateCharactersDB() {
+        String url = characterUrl;
+
+        while (url != null) {
+            String jsonResponse = restTemplate.getForObject(url, String.class);
+            try {
+                JsonNode rootNode = objectMapper.readTree(jsonResponse);
+                List<Character> pageCharacters = deserializeCharacters(rootNode);
+                characterRepository.saveAll(pageCharacters);
+                url = getNextPageUrl(rootNode);
+            } catch (JsonProcessingException e) {
+                throw new RuntimeException("Can't fetch all characters");
+            }
+        }
+    }
+
+    private String getNextPageUrl(JsonNode rootNode) {
+        JsonNode infoNode = rootNode.get(ROOT_INFO);
+        if (infoNode != null) {
+            JsonNode nextNode = infoNode.get(ROOT_NEXT);
+            if (nextNode.asText() != NULL_VALUE) {
+                return nextNode.asText();
+            }
+        }
+        return null;
+    }
+
+    private List<Character> deserializeCharacters(JsonNode rootNode)
+            throws JsonProcessingException {
+        JsonNode resultNode = rootNode.get(ROOT_RESULTS);
+        return objectMapper.treeToValue(resultNode,
+                objectMapper.getTypeFactory().constructCollectionType(List.class, Character.class));
+
+    }
+}

src/main/resources/application.properties

@@ -1 +1,9 @@
-
+spring.application.name=rickandmorty
+spring.datasource.url=jdbc:mysql://localhost:3306/rickandmorty
+spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
+spring.datasource.username=${MYSQL_USERNAME}
+spring.datasource.password=${MYSQL_PASSWORD}
+spring.jpa.hibernate.ddl-auto=create-drop
+spring.jpa.show-sql=true
+spring.jpa.open-in-view=false
+characters.url=https://rickandmortyapi.com/api/character

src/test/resources/application.properties

@@ -3,3 +3,4 @@ spring.datasource.driverClassName=org.h2.Driver
 spring.datasource.username=sa
 spring.datasource.password=password
 spring.jpa.database-platform=org.hibernate.dialect.H2Dialect
+characters.url=https://rickandmortyapi.com/api/character