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# Отчет. Лабораторная работа 3
## Описание
В рамках лабораторной работы № 3 были реализованы два сервиса (Java + Spring), осуществляющие CRUD-операции над сущностями.
Модель данных следующая:
Сущность "Компания" (сервис company)
- идентификатор компании
- название
- адрес
Сущность "Вакансия" (сервис vacancy)
- идентификатор вакансии
- название
- описание
- нижняя граница зарплаты
- верхняя граница зарплаты
- идентификатор компании
Компания с вакансией связана как "один ко многим".
Каждый из сервисов имеет API с пятью эндпоинтами. При этом в сервисе vacancy при запросе вакансии по id происходит
дополнительный запрос в сервис company для получения информации по компании, связанной с вакансией.
Происходит это взаимодействие с помощью библиотеки OpenFeign, которая "под капотом" использует HttpClient.
В качестве хранилища данных использовалась СУБД Postgres. У каждого сервиса своя база данных в поднятой СУБД.
Для создания схемы БД была использована библиотека Flyway, которая применила написанные миграции при старте приложения.
Запросы к сервисам проксирует шлюз на основе Nginx. Для этого перед запуском nginx был описан конфигурационный файл nginx.conf,
в котором описан прослушиваемый порт и название сервера (в блоке server), маршруты до микросервисов и параметры проксирования (в блоке location).
Таким образом, с помощью Docker Compose были подняты сервисы:
- company
- vacancy
- postgres
- nginx
## Как запустить
Для того, чтобы запустить сервисы, необходимо выполнить следующие действия:
1. Установить и запустить Docker Engine или Docker Desktop
2. Через консоль перейти в папку, в которой расположен файл docker-compose.yml
3. Выполнить команду:
```
docker compose up --build
```
В случае успешного запуска всех контейнеров в консоли будет выведено следующее сообщение:
```
[+] Running 5/5
✔ Network borschevskaya_anna_lab_3_default Created 0.0s
✔ Container postgres Started 0.6s
✔ Container vacancy Started 1.1s
✔ Container company Started 0.9s
✔ Container borschevskaya_anna_lab_3-nginx-1 Started
```
Далее можно осуществлять запросы к сервисам по адресу http://localhost/{location}, где часть пути location меняется в зависимости от сервиса и запроса.
## Видео-отчет
Работоспособность лабораторной работы можно оценить в следующем [видео](https://disk.yandex.ru/i/KPNBfnlcgl1auw).
Демонстрация взаимодействия с системой производится с применением сервиса Postman.

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target/
!.mvn/wrapper/maven-wrapper.jar
!**/src/main/**/target/
!**/src/test/**/target/
### IntelliJ IDEA ###
.idea/modules.xml
.idea/jarRepositories.xml
.idea/compiler.xml
.idea/libraries/
*.iws
*.iml
*.ipr
### Eclipse ###
.apt_generated
.classpath
.factorypath
.project
.settings
.springBeans
.sts4-cache
### NetBeans ###
/nbproject/private/
/nbbuild/
/dist/
/nbdist/
/.nb-gradle/
build/
!**/src/main/**/build/
!**/src/test/**/build/
### VS Code ###
.vscode/
### Mac OS ###
.DS_Store

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# Используем образ Maven для сборки
FROM maven:3.8-eclipse-temurin-21-alpine AS build
# Устанавливаем рабочую директорию
WORKDIR /app
# Копируем остальные исходные файлы
COPY pom.xml .
COPY src src
# Собираем весь проект
RUN mvn clean package -DskipTests
# Используем официальный образ JDK для запуска собранного jar-файла
FROM eclipse-temurin:21-jdk-alpine
# Копируем jar-файл из предыдущего этапа
COPY --from=build /app/target/*.jar /app.jar
# Указываем команду для запуска приложения
CMD ["java", "-jar", "app.jar"]

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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>ru.computer</groupId>
<artifactId>computer-service</artifactId>
<version>1.0-SNAPSHOT</version>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>3.2.3</version>
<relativePath />
</parent>
<properties>
<maven.compiler.source>21</maven.compiler.source>
<maven.compiler.target>21</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<mapstruct.version>1.5.5.Final</mapstruct.version>
<lombok-mapstruct-binding.version>0.2.0</lombok-mapstruct-binding.version>
<spring-cloud.version>2023.0.3</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.flywaydb</groupId>
<artifactId>flyway-core</artifactId>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.30</version>
</dependency>
<dependency>
<groupId>org.mapstruct</groupId>
<artifactId>mapstruct</artifactId>
<version>${mapstruct.version}</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok-mapstruct-binding</artifactId>
<version>${lombok-mapstruct-binding.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-openfeign</artifactId>
</dependency>
<dependency>
<groupId>io.swagger.core.v3</groupId>
<artifactId>swagger-annotations</artifactId>
<version>2.2.1</version>
</dependency>
<dependency>
<groupId>org.springdoc</groupId>
<artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>
<version>2.3.0</version>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<annotationProcessorPaths>
<path>
<groupId>org.mapstruct</groupId>
<artifactId>mapstruct-processor</artifactId>
<version>${mapstruct.version}</version>
</path>
<path>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.30</version>
</path>
<path>
<groupId>org.projectlombok</groupId>
<artifactId>lombok-mapstruct-binding</artifactId>
<version>${lombok-mapstruct-binding.version}</version>
</path>
</annotationProcessorPaths>
<compilerArgs>
<arg>-Amapstruct.defaultComponentModel=spring</arg>
</compilerArgs>
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build>
</project>

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package ru.computer;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.openfeign.EnableFeignClients;
@SpringBootApplication
@EnableFeignClients
public class ComputerApplication {
public static void main(String[] args) {
SpringApplication.run(ComputerApplication.class, args);
}
}

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package ru.computer.controller;
import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.responses.ApiResponse;
import io.swagger.v3.oas.annotations.responses.ApiResponses;
import io.swagger.v3.oas.annotations.tags.Tag;
import jakarta.validation.constraints.NotNull;
import org.springframework.validation.annotation.Validated;
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 ru.computer.domain.CreateComputerRequest;
import ru.computer.domain.ComputerEntity;
import ru.computer.domain.ComputerResponse;
import java.util.List;
import java.util.UUID;
@Validated
@Tag(name = "computer", description = "API для управления компьютерами")
public interface ComputerController {
@Operation(summary = "Получение всех компьютеров")
@ApiResponses(value = {
@ApiResponse(responseCode = "200", description = "Данные успешно переданы"),
})
@GetMapping(value = "/api/v1/computer")
List<ComputerEntity> getComputers();
@Operation(summary = "Создание компьютера")
@ApiResponses(value = {
@ApiResponse(responseCode = "200", description = "Компьютер успешно создана"),
})
@PostMapping(value = "/api/v1/computer")
ComputerEntity createComputer(@RequestBody @NotNull CreateComputerRequest request);
@Operation(summary = "Получение информации о компьютере по id")
@ApiResponses(value = {
@ApiResponse(responseCode = "200", description = "Данные успешно переданы"),
@ApiResponse(responseCode = "404", description = "Компьютер не найден")
})
@GetMapping(value = "/api/v1/computer/{computerId}")
ComputerResponse getComputer(@PathVariable UUID computerId);
@Operation(summary = "Редактирование компьютера")
@ApiResponses(value = {
@ApiResponse(responseCode = "200", description = "Данные компьютер успешно изменен"),
@ApiResponse(responseCode = "404", description = "Компьютер не найден")
})
@PutMapping(value = "/api/v1/computer/{computerId}")
ComputerEntity updateComputer(@PathVariable UUID computerId,
@RequestBody @NotNull CreateComputerRequest request);
@Operation(summary = "Удалении компьютера по id")
@ApiResponses(value = {
@ApiResponse(responseCode = "200", description = "Компьютер успешно удален"),
@ApiResponse(responseCode = "404", description = "Компьютер не найден")
})
@DeleteMapping(value = "/api/v1/computer/{computerId}")
void deleteComputer(@PathVariable UUID computerId);
}

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package ru.computer.controller;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.bind.annotation.RestController;
import ru.computer.domain.CreateComputerRequest;
import ru.computer.domain.ComputerEntity;
import ru.computer.domain.ComputerResponse;
import ru.computer.service.ComputerService;
import java.util.List;
import java.util.UUID;
@Slf4j
@RestController
@RequiredArgsConstructor
public class ComputerControllerImpl implements ComputerController {
private final ComputerService computerService;
@Override
public List<ComputerEntity> getComputers() {
return computerService.getComputers();
}
@Override
public ComputerEntity createComputer(CreateComputerRequest request) {
return computerService.createComputer(request);
}
@Override
public ComputerResponse getComputer(UUID computerId) {
return computerService.getComputer(computerId);
}
@Override
public ComputerEntity updateComputer(UUID computerId, CreateComputerRequest request) {
return computerService.updateComputer(computerId, request);
}
@Override
public void deleteComputer(UUID computerId) {
computerService.deleteComputer(computerId);
}
}

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package ru.computer.domain;
import jakarta.persistence.Column;
import jakarta.persistence.Entity;
import jakarta.persistence.GeneratedValue;
import jakarta.persistence.Id;
import jakarta.persistence.Table;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;
import java.util.UUID;
@Data
@Entity
@Builder
@Table(name = "computer")
@AllArgsConstructor
@NoArgsConstructor
public class ComputerEntity {
@Id
@GeneratedValue
private UUID id;
@Column(name = "name", nullable = false)
private String name;
@Column(name = "description", nullable = true)
private String description;
@Column(name = "room_id", nullable = false)
private UUID roomId;
}

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package ru.computer.domain;
import io.swagger.v3.oas.annotations.media.Schema;
import lombok.Builder;
import lombok.Data;
import java.util.UUID;
@Data
@Builder
@Schema(description = "Данные по вакансии")
public class ComputerResponse {
private UUID id;
private String name;
private String description;
private RoomResponse room;
}

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package ru.computer.domain;
import lombok.AllArgsConstructor;
import lombok.Data;
import java.util.UUID;
@Data
@AllArgsConstructor
public class CreateComputerRequest {
private String name;
private String description;
private UUID roomId;
}

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kalyshev_yan_lab_3/computer-service/src/main/java/ru/computer/domain/RoomResponse.java Normal file
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package ru.computer.domain;
import lombok.AllArgsConstructor;
import lombok.Data;
import java.util.UUID;
@Data
@AllArgsConstructor
public class RoomResponse {
private UUID id;
private String name;
private String address;
}

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package ru.computer.exception;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import java.time.LocalDateTime;
import static org.springframework.http.HttpStatus.NOT_FOUND;
@Slf4j
public abstract class AbstractWebExceptionHandler {
public static ResponseEntity<ResponseError> buildResponse(ErrorCode errorCode, HttpStatus status, String msg,
boolean details, Throwable ex) {
return buildResponse(errorCode.name(), status, msg, details, ex, LocalDateTime.now());
}
public static ResponseEntity<ResponseError> buildResponse(String errorCode, HttpStatus status, String msg,
boolean details, Throwable ex, LocalDateTime timestamp) {
if (details) {
log.error(msg, ex); // with stack-trace
} else {
var message = StringUtils.equals(msg, ex.getMessage()) ? msg : msg + ": " + ex.getMessage();
if (status == NOT_FOUND) {
log.warn(message);
} else {
log.error(message);
}
}
return ResponseEntity.status(status.value())
.body(ResponseError.builder()
.code(errorCode)
.message(msg)
.timestamp(timestamp)
.status(status.value())
.build());
}
}

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package ru.computer.exception;
public enum BasicError implements ErrorCode {
NOT_FOUND
}

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kalyshev_yan_lab_3/computer-service/src/main/java/ru/computer/exception/ErrorCode.java Normal file
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package ru.computer.exception;
import java.io.Serializable;
public interface ErrorCode extends Serializable {
String name();
}

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package ru.computer.exception;
import org.springframework.http.HttpStatus;
import static ru.computer.exception.BasicError.NOT_FOUND;
public class ResourceNotFoundException extends RoomAppRuntimeException {
public ResourceNotFoundException(ErrorCode errorCode, String message) {
this(errorCode, message, null);
}
public ResourceNotFoundException(ErrorCode errorCode, String message, Throwable error) {
super(errorCode, HttpStatus.NOT_FOUND, message, error);
}
public static ResourceNotFoundException notFound(String message, Object... args) {
return new ResourceNotFoundException(NOT_FOUND, String.format(message, args), null);
}
public static ResourceNotFoundException notFound() {
return new ResourceNotFoundException(NOT_FOUND, "Запрашиваемые данные не найдены", null);
}
public static ResourceNotFoundException notFound(Throwable error) {
return new ResourceNotFoundException(NOT_FOUND, error.getMessage(), error);
}
}

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package ru.computer.exception;
import com.fasterxml.jackson.annotation.JsonProperty;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;
import java.time.LocalDateTime;
@Data
@Builder
@AllArgsConstructor
@NoArgsConstructor
public class ResponseError {
@JsonProperty(required = true)
private LocalDateTime timestamp;
@JsonProperty(required = true)
private Integer status;
@JsonProperty(required = true)
private String message;
@JsonProperty(required = true)
private String code;
}

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kalyshev_yan_lab_3/computer-service/src/main/java/ru/computer/exception/RoomAppRuntimeException.java Normal file
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package ru.computer.exception;
import lombok.Getter;
import org.springframework.http.HttpStatus;
@Getter
public class RoomAppRuntimeException extends RuntimeException {
private final ErrorCode errorCode;
private final HttpStatus status;
private final boolean details;
public RoomAppRuntimeException(ErrorCode errorCode, HttpStatus status, String message) {
this(errorCode, status, message, null);
}
public RoomAppRuntimeException(ErrorCode errorCode, HttpStatus status, String message, Throwable error) {
this(errorCode, status, message, true, error);
}
public RoomAppRuntimeException(ErrorCode errorCode, HttpStatus status, String message, boolean details,
Throwable error) {
super(message, error);
this.errorCode = errorCode;
this.status = status;
this.details = details;
}
}

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package ru.computer.exception;
import com.fasterxml.jackson.databind.ObjectMapper;
import lombok.Getter;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;
@Slf4j
@Getter
@RestControllerAdvice
@RequiredArgsConstructor
public class WebExceptionHandler extends AbstractWebExceptionHandler {
private final ObjectMapper objectMapper;
@ExceptionHandler(RoomAppRuntimeException.class)
public ResponseEntity<ResponseError> handleException(RoomAppRuntimeException ex) {
return buildResponse(ex.getErrorCode(), ex.getStatus(), ex.getMessage(), ex.isDetails(), ex);
}
}

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package ru.computer.external;
import org.springframework.cloud.openfeign.FeignClient;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import ru.computer.domain.RoomResponse;
import java.util.UUID;
@FeignClient(name = "room", url = "${app.feign.room-url}")
public interface RoomClient {
@GetMapping(value = "/api/v1/room/{roomId}")
RoomResponse getRoom(@PathVariable UUID roomId);
}

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package ru.computer.mapper;
import org.mapstruct.Mapper;
import org.mapstruct.Mapping;
import org.mapstruct.MappingTarget;
import ru.computer.domain.RoomResponse;
import ru.computer.domain.CreateComputerRequest;
import ru.computer.domain.ComputerEntity;
import ru.computer.domain.ComputerResponse;
import java.util.UUID;
@Mapper(imports = UUID.class)
public interface ComputerMapper {
@Mapping(target = "room", source = "room")
@Mapping(target = "name", source = "entity.name")
@Mapping(target = "id", source = "entity.id")
ComputerResponse map(ComputerEntity entity, RoomResponse room);
ComputerEntity map(CreateComputerRequest request);
ComputerEntity map(@MappingTarget ComputerEntity entity, CreateComputerRequest request);
}

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package ru.computer.repository;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;
import ru.computer.domain.ComputerEntity;
import java.util.UUID;
@Repository
public interface ComputerRepository extends JpaRepository<ComputerEntity, UUID> {
}

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package ru.computer.service;
import ru.computer.domain.CreateComputerRequest;
import ru.computer.domain.ComputerEntity;
import ru.computer.domain.ComputerResponse;
import java.util.List;
import java.util.UUID;
public interface ComputerService {
List<ComputerEntity> getComputers();
ComputerEntity createComputer(CreateComputerRequest request);
ComputerEntity updateComputer(UUID computerId, CreateComputerRequest request);
void deleteComputer(UUID computerId);
ComputerResponse getComputer(UUID computerId);
}

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package ru.computer.service;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;
import ru.computer.domain.CreateComputerRequest;
import ru.computer.domain.ComputerEntity;
import ru.computer.domain.ComputerResponse;
import ru.computer.mapper.ComputerMapper;
import ru.computer.repository.ComputerRepository;
import ru.computer.service.adapter.RoomAdapter;
import java.util.List;
import java.util.UUID;
import static ru.computer.exception.ResourceNotFoundException.notFound;
@Slf4j
@Service
@RequiredArgsConstructor
public class ComputerServiceImpl implements ComputerService {
private final ComputerRepository computerRepository;
private final RoomAdapter roomAdapter;
private final ComputerMapper mapper;
@Override
public List<ComputerEntity> getComputers() {
return computerRepository.findAll();
}
@Override
public ComputerEntity createComputer(CreateComputerRequest request) {
var entity = mapper.map(request);
return computerRepository.save(entity);
}
@Override
public ComputerEntity updateComputer(UUID computerId, CreateComputerRequest request) {
var entity = getById(computerId);
entity = mapper.map(entity, request);
return computerRepository.save(entity);
}
@Override
public void deleteComputer(UUID computerId) {
var entity = getById(computerId);
computerRepository.delete(entity);
}
@Override
public ComputerResponse getComputer(UUID computerId) {
var entity = getById(computerId);
var room = roomAdapter.getRoomById(entity.getRoomId());
return mapper.map(entity, room);
}
private ComputerEntity getById(UUID computerId) {
var entity = computerRepository.findById(computerId);
if (entity.isEmpty()) {
log.warn("The computer with id '{}' was not found", computerId);
throw notFound("Компьютер не найден");
}
return entity.get();
}
}

10
kalyshev_yan_lab_3/computer-service/src/main/java/ru/computer/service/adapter/RoomAdapter.java Normal file
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package ru.computer.service.adapter;
import ru.computer.domain.RoomResponse;
import java.util.UUID;
public interface RoomAdapter {
RoomResponse getRoomById(UUID companyId);
}

20
kalyshev_yan_lab_3/computer-service/src/main/java/ru/computer/service/adapter/RoomAdapterImpl.java Normal file
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package ru.computer.service.adapter;
import lombok.RequiredArgsConstructor;
import org.springframework.stereotype.Service;
import ru.computer.domain.RoomResponse;
import ru.computer.external.RoomClient;
import java.util.UUID;
@Service
@RequiredArgsConstructor
public class RoomAdapterImpl implements RoomAdapter {
private final RoomClient roomClient;
@Override
public RoomResponse getRoomById(UUID roomId) {
return roomClient.getRoom(roomId);
}
}

32
kalyshev_yan_lab_3/computer-service/src/main/resources/application.yml Normal file
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server:
port: ${SERVER_PORT:8080}
spring:
application:
name: computer-app
jpa:
database: POSTGRESQL
open-in-view: false
show-sql: false
hibernate:
ddl-auto: none
properties:
hibernate:
dialect: org.hibernate.dialect.PostgreSQLDialect
datasource:
url: ${DB_URL:jdbc:postgresql://localhost:5433/computer}
username: ${DB_USERNAME:postgres}
password: ${DB_PASSWORD:postgres}
driverClassName: org.postgresql.Driver
type: com.zaxxer.hikari.HikariDataSource
hikari:
maximum-pool-size: 15
minimum-idle: 4
idle-timeout: 180000
max-lifetime: 599000
flyway:
enabled: true
locations: db/migration/
app:
feign:
room-url: ${ROOM_URL:http://localhost:8081}

7
kalyshev_yan_lab_3/computer-service/src/main/resources/db/migration/V000001__init.sql Normal file
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CREATE TABLE computer (
id UUID
CONSTRAINT computer_pk PRIMARY KEY,
name VARCHAR(255) NOT NULL,
description VARCHAR(1000),
room_id UUID NOT NULL
);

43
kalyshev_yan_lab_3/docker-compose.yml Normal file
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services:
postgres:
image: postgres:latest
container_name: postgres
environment:
POSTGRES_USERNAME: postgres
POSTGRES_PASSWORD: postgres
PGDATA: "/var/lib/postgresql/data/pgdata"
ports:
- "5432:5432"
volumes:
- ./postgres_data:/var/lib/postgresql/data/
- ./init-database.sh:/docker-entrypoint-initdb.d/init-database.sh
room:
build: ./room-service
container_name: room
depends_on:
- postgres
environment:
SERVER_PORT: 8080
DB_URL: jdbc:postgresql://postgres:5432/room
DB_USERNAME: postgres
DB_PASSWORD: postgres
computer:
build: ./computer-service
container_name: computer
depends_on:
- postgres
environment:
SERVER_PORT: 8080
DB_URL: jdbc:postgresql://postgres:5432/computer
DB_USERNAME: postgres
DB_PASSWORD: postgres
ROOM_URL: http://nginx/
nginx:
image: nginx
depends_on:
- computer
- room
volumes:
- ./nginx/nginx.conf:/etc/nginx/conf.d/default.conf
ports:
- 80:80

8
kalyshev_yan_lab_3/init-database.sh Normal file
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#!/bin/bash
set -e
# Создаем БД
psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" --dbname "$POSTGRES_DB" <<-EOSQL
CREATE DATABASE computer;
CREATE DATABASE room;
EOSQL

21
kalyshev_yan_lab_3/nginx/nginx.conf Normal file
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server {
listen 80;
listen [::]:80;
server_name localhost;
location /api/v1/room {
proxy_pass http://room:8080;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
location /api/v1/computer {
proxy_pass http://computer:8080;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
}

38
kalyshev_yan_lab_3/room-service/.gitignore vendored Normal file
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@ -0,0 +1,38 @@
target/
!.mvn/wrapper/maven-wrapper.jar
!**/src/main/**/target/
!**/src/test/**/target/
### IntelliJ IDEA ###
.idea/modules.xml
.idea/jarRepositories.xml
.idea/compiler.xml
.idea/libraries/
*.iws
*.iml
*.ipr
### Eclipse ###
.apt_generated
.classpath
.factorypath
.project
.settings
.springBeans
.sts4-cache
### NetBeans ###
/nbproject/private/
/nbbuild/
/dist/
/nbdist/
/.nb-gradle/
build/
!**/src/main/**/build/
!**/src/test/**/build/
### VS Code ###
.vscode/
### Mac OS ###
.DS_Store

21
kalyshev_yan_lab_3/room-service/Dockerfile Normal file
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# Используем образ Maven для сборки
FROM maven:3.8-eclipse-temurin-21-alpine AS build
# Устанавливаем рабочую директорию
WORKDIR /app
# Копируем остальные исходные файлы
COPY pom.xml .
COPY src src
# Собираем весь проект
RUN mvn clean package -DskipTests
# Используем официальный образ JDK для запуска собранного jar-файла
FROM eclipse-temurin:21-jdk-alpine
# Копируем jar-файл из предыдущего этапа
COPY --from=build /app/target/*.jar /app.jar
# Указываем команду для запуска приложения
CMD ["java", "-jar", "app.jar"]

66
kalyshev_yan_lab_3/room-service/pom.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>ru.room</groupId>
<artifactId>room-service</artifactId>
<version>1.0-SNAPSHOT</version>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>3.2.3</version>
<relativePath />
</parent>
<properties>
<maven.compiler.source>21</maven.compiler.source>
<maven.compiler.target>21</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.flywaydb</groupId>
<artifactId>flyway-core</artifactId>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.30</version>
</dependency>
<dependency>
<groupId>io.swagger.core.v3</groupId>
<artifactId>swagger-annotations</artifactId>
<version>2.2.1</version>
</dependency>
<dependency>
<groupId>org.springdoc</groupId>
<artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>
<version>2.3.0</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>

12
kalyshev_yan_lab_3/room-service/src/main/java/ru/room/RoomApplication.java Normal file
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@ -0,0 +1,12 @@
package ru.room;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class RoomApplication {
public static void main(String[] args) {
SpringApplication.run(RoomApplication.class, args);
}
}

43
kalyshev_yan_lab_3/room-service/src/main/java/ru/room/controller/RoomController.java Normal file
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@ -0,0 +1,43 @@
package ru.room.controller;
import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.tags.Tag;
import jakarta.validation.constraints.NotNull;
import org.springframework.validation.annotation.Validated;
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 ru.room.domain.RoomEntity;
import ru.room.domain.CreateRoomRequest;
import java.util.List;
import java.util.UUID;
@Validated
@Tag(name = "room", description = "API для управления компаниями")
public interface RoomController {
@Operation(summary = "Получение всех компаний")
@GetMapping(value = "/api/v1/room")
List<RoomEntity> getCompanies();
@Operation(summary = "Создание компании")
@PostMapping(value = "/api/v1/room")
RoomEntity createRoom(@RequestBody @NotNull CreateRoomRequest roomRequest);
@Operation(summary = "Получение информации о компании по id")
@GetMapping(value = "/api/v1/room/{roomId}")
RoomEntity getRoom(@PathVariable UUID roomId);
@Operation(summary = "Редактирование компании")
@PutMapping(value = "/api/v1/room/{roomId}")
RoomEntity updateRoom(@PathVariable UUID roomId,
@RequestBody @NotNull CreateRoomRequest roomRequest);
@Operation(summary = "Удалении компании по id")
@DeleteMapping(value = "/api/v1/room/{roomId}")
void deleteRoom(@PathVariable UUID roomId);
}

42
kalyshev_yan_lab_3/room-service/src/main/java/ru/room/controller/RoomControllerImpl.java Normal file
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@ -0,0 +1,42 @@
package ru.room.controller;
import lombok.RequiredArgsConstructor;
import org.springframework.web.bind.annotation.RestController;
import ru.room.domain.RoomEntity;
import ru.room.domain.CreateRoomRequest;
import ru.room.service.RoomService;
import java.util.List;
import java.util.UUID;
@RestController
@RequiredArgsConstructor
public class RoomControllerImpl implements RoomController {
private final RoomService roomService;
@Override
public List<RoomEntity> getCompanies() {
return roomService.getCompanies();
}
@Override
public RoomEntity createRoom(CreateRoomRequest roomRequest) {
return roomService.createRoom(roomRequest);
}
@Override
public RoomEntity getRoom(UUID roomId) {
return roomService.getRoom(roomId);
}
@Override
public RoomEntity updateRoom(UUID roomId, CreateRoomRequest roomRequest) {
return roomService.updateRoom(roomId, roomRequest);
}
@Override
public void deleteRoom(UUID roomId) {
roomService.deleteRoom(roomId);
}
}

13
kalyshev_yan_lab_3/room-service/src/main/java/ru/room/domain/CreateRoomRequest.java Normal file
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@ -0,0 +1,13 @@
package ru.room.domain;
import lombok.AllArgsConstructor;
import lombok.Data;
@Data
@AllArgsConstructor
public class CreateRoomRequest {
private String name;
private String address;
}

32
kalyshev_yan_lab_3/room-service/src/main/java/ru/room/domain/RoomEntity.java Normal file
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@ -0,0 +1,32 @@
package ru.room.domain;
import jakarta.persistence.Column;
import jakarta.persistence.Entity;
import jakarta.persistence.GeneratedValue;
import jakarta.persistence.Id;
import jakarta.persistence.Table;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;
import java.util.UUID;
@Data
@Entity
@Builder
@Table(name = "room")
@AllArgsConstructor
@NoArgsConstructor
public class RoomEntity {
@Id
@GeneratedValue
private UUID id;
@Column(name = "name", unique = true, nullable = false)
private String name;
@Column(name = "address", unique = true, nullable = false)
private String address;
}

41
kalyshev_yan_lab_3/room-service/src/main/java/ru/room/exception/AbstractWebExceptionHandler.java Normal file
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@ -0,0 +1,41 @@
package ru.room.exception;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import java.time.LocalDateTime;
import static org.springframework.http.HttpStatus.NOT_FOUND;
@Slf4j
public abstract class AbstractWebExceptionHandler {
public static ResponseEntity<ResponseError> buildResponse(ErrorCode errorCode, HttpStatus status, String msg,
boolean details, Throwable ex) {
return buildResponse(errorCode.name(), status, msg, details, ex, LocalDateTime.now());
}
public static ResponseEntity<ResponseError> buildResponse(String errorCode, HttpStatus status, String msg,
boolean details, Throwable ex, LocalDateTime timestamp) {
if (details) {
log.error(msg, ex); // with stack-trace
} else {
var message = StringUtils.equals(msg, ex.getMessage()) ? msg : msg + ": " + ex.getMessage();
if (status == NOT_FOUND) {
log.warn(message);
} else {
log.error(message);
}
}
return ResponseEntity.status(status.value())
.body(ResponseError.builder()
.code(errorCode)
.message(msg)
.timestamp(timestamp)
.status(status.value())
.build());
}
}

5
kalyshev_yan_lab_3/room-service/src/main/java/ru/room/exception/BasicError.java Normal file
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@ -0,0 +1,5 @@
package ru.room.exception;
public enum BasicError implements ErrorCode {
NOT_FOUND
}

9
kalyshev_yan_lab_3/room-service/src/main/java/ru/room/exception/ErrorCode.java Normal file
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@ -0,0 +1,9 @@
package ru.room.exception;
import java.io.Serializable;
public interface ErrorCode extends Serializable {
String name();
}

28
kalyshev_yan_lab_3/room-service/src/main/java/ru/room/exception/ResourceNotFoundException.java Normal file
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@ -0,0 +1,28 @@
package ru.room.exception;
import org.springframework.http.HttpStatus;
import static ru.room.exception.BasicError.NOT_FOUND;
public class ResourceNotFoundException extends RoomAppRuntimeException {
public ResourceNotFoundException(ErrorCode errorCode, String message) {
this(errorCode, message, null);
}
public ResourceNotFoundException(ErrorCode errorCode, String message, Throwable error) {
super(errorCode, HttpStatus.NOT_FOUND, message, error);
}
public static ResourceNotFoundException notFound(String message, Object... args) {
return new ResourceNotFoundException(NOT_FOUND, String.format(message, args), null);
}
public static ResourceNotFoundException notFound() {
return new ResourceNotFoundException(NOT_FOUND, "Запрашиваемые данные не найдены", null);
}
public static ResourceNotFoundException notFound(Throwable error) {
return new ResourceNotFoundException(NOT_FOUND, error.getMessage(), error);
}
}

24
kalyshev_yan_lab_3/room-service/src/main/java/ru/room/exception/ResponseError.java Normal file
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@ -0,0 +1,24 @@
package ru.room.exception;
import com.fasterxml.jackson.annotation.JsonProperty;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;
import java.time.LocalDateTime;
@Data
@Builder
@AllArgsConstructor
@NoArgsConstructor
public class ResponseError {
@JsonProperty(required = true)
private LocalDateTime timestamp;
@JsonProperty(required = true)
private Integer status;
@JsonProperty(required = true)
private String message;
@JsonProperty(required = true)
private String code;
}

27
kalyshev_yan_lab_3/room-service/src/main/java/ru/room/exception/RoomAppRuntimeException.java Normal file
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@ -0,0 +1,27 @@
package ru.room.exception;
import lombok.Getter;
import org.springframework.http.HttpStatus;
@Getter
public class RoomAppRuntimeException extends RuntimeException {
private final ErrorCode errorCode;
private final HttpStatus status;
private final boolean details;
public RoomAppRuntimeException(ErrorCode errorCode, HttpStatus status, String message) {
this(errorCode, status, message, null);
}
public RoomAppRuntimeException(ErrorCode errorCode, HttpStatus status, String message, Throwable error) {
this(errorCode, status, message, true, error);
}
public RoomAppRuntimeException(ErrorCode errorCode, HttpStatus status, String message, boolean details,
Throwable error) {
super(message, error);
this.errorCode = errorCode;
this.status = status;
this.details = details;
}
}

22
kalyshev_yan_lab_3/room-service/src/main/java/ru/room/exception/WebExceptionHandler.java Normal file
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@ -0,0 +1,22 @@
package ru.room.exception;
import com.fasterxml.jackson.databind.ObjectMapper;
import lombok.Getter;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;
@Slf4j
@Getter
@RestControllerAdvice
@RequiredArgsConstructor
public class WebExceptionHandler extends AbstractWebExceptionHandler {
private final ObjectMapper objectMapper;
@ExceptionHandler(RoomAppRuntimeException.class)
public ResponseEntity<ResponseError> handleException(RoomAppRuntimeException ex) {
return buildResponse(ex.getErrorCode(), ex.getStatus(), ex.getMessage(), ex.isDetails(), ex);
}
}

9
kalyshev_yan_lab_3/room-service/src/main/java/ru/room/repository/RoomRepository.java Normal file
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@ -0,0 +1,9 @@
package ru.room.repository;
import org.springframework.data.jpa.repository.JpaRepository;
import ru.room.domain.RoomEntity;
import java.util.UUID;
public interface RoomRepository extends JpaRepository<RoomEntity, UUID> {
}

20
kalyshev_yan_lab_3/room-service/src/main/java/ru/room/service/RoomService.java Normal file
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@ -0,0 +1,20 @@
package ru.room.service;
import ru.room.domain.RoomEntity;
import ru.room.domain.CreateRoomRequest;
import java.util.List;
import java.util.UUID;
public interface RoomService {
List<RoomEntity> getCompanies();
RoomEntity createRoom(CreateRoomRequest roomRequest);
RoomEntity updateRoom(UUID roomId, CreateRoomRequest roomRequest);
void deleteRoom(UUID roomId);
RoomEntity getRoom(UUID roomId);
}

57
kalyshev_yan_lab_3/room-service/src/main/java/ru/room/service/RoomServiceImpl.java Normal file
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@ -0,0 +1,57 @@
package ru.room.service;
import lombok.RequiredArgsConstructor;
import org.springframework.stereotype.Service;
import ru.room.domain.RoomEntity;
import ru.room.domain.CreateRoomRequest;
import ru.room.repository.RoomRepository;
import java.util.List;
import java.util.UUID;
import static ru.room.exception.ResourceNotFoundException.notFound;
@Service
@RequiredArgsConstructor
public class RoomServiceImpl implements RoomService {
private final RoomRepository roomRepository;
@Override
public List<RoomEntity> getCompanies() {
return roomRepository.findAll();
}
@Override
public RoomEntity createRoom(CreateRoomRequest roomRequest) {
var entity = RoomEntity.builder()
.name(roomRequest.getName())
.address(roomRequest.getAddress())
.build();
return roomRepository.save(entity);
}
@Override
public RoomEntity updateRoom(UUID roomId, CreateRoomRequest roomRequest) {
var room = getById(roomId);
room.setName(roomRequest.getName());
room.setAddress(roomRequest.getAddress());
return roomRepository.save(room);
}
@Override
public void deleteRoom(UUID roomId) {
var room = getById(roomId);
roomRepository.delete(room);
}
@Override
public RoomEntity getRoom(UUID roomId) {
return getById(roomId);
}
private RoomEntity getById(UUID roomId) {
return roomRepository.findById(roomId)
.orElseThrow(() -> notFound("Компания не найдена"));
}
}

28
kalyshev_yan_lab_3/room-service/src/main/resources/application.yml Normal file
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@ -0,0 +1,28 @@
server:
port: ${SERVER_PORT:8080}
spring:
application:
name: room-app
jpa:
database: POSTGRESQL
open-in-view: false
show-sql: false
hibernate:
ddl-auto: none
properties:
hibernate:
dialect: org.hibernate.dialect.PostgreSQLDialect
datasource:
url: ${DB_URL:jdbc:postgresql://postgres:5433/room}
username: ${DB_USERNAME:postgres}
password: ${DB_PASSWORD:postgres}
driverClassName: org.postgresql.Driver
type: com.zaxxer.hikari.HikariDataSource
hikari:
maximum-pool-size: 15
minimum-idle: 4
idle-timeout: 180000
max-lifetime: 599000
flyway:
enabled: true
locations: db/migration/

6
kalyshev_yan_lab_3/room-service/src/main/resources/db/migration/V000001__init.sql Normal file
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@ -0,0 +1,6 @@
CREATE TABLE room (
id UUID
CONSTRAINT room_pk PRIMARY KEY,
name VARCHAR(255) UNIQUE NOT NULL,
address VARCHAR(255) NOT NULL
);