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‎src/main/java/org/sadtech/example/swagger/SwaggerApplication.java‎

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package org.sadtech.example.swagger;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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@SpringBootApplication
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public class SwaggerApplication {
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public static void main(String[] args) {
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SpringApplication.run(SwaggerApplication.class, args);
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}
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}

‎src/main/java/org/sadtech/example/swagger/config/AppConfig.java‎

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package org.sadtech.example.swagger.config;
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import org.sadtech.example.swagger.dto.Gender;
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import org.sadtech.example.swagger.dto.UserDto;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import java.util.Map;
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import java.util.stream.Collectors;
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import java.util.stream.Stream;
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/**
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* // TODO: 30.12.2020 Добавить описание.
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*
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* @author upagge 30.12.2020
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*/
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@Configuration
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public class AppConfig {
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@Bean
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public Map<String, UserDto> userRepository() {
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return Stream.of(
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UserDto.of("key1", "value1", Gender.MAN),
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UserDto.of("key2", "value2", Gender.WOMAN)
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).collect(Collectors.toMap(UserDto::getKey, userDto -> userDto));
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}
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}

‎src/main/java/org/sadtech/example/swagger/config/SwaggerConfig.java‎

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package org.sadtech.example.swagger.config;
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import io.swagger.v3.oas.models.OpenAPI;
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import io.swagger.v3.oas.models.info.Info;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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/**
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*
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* @author upagge 30.12.2020
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*/
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@Configuration
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public class SwaggerConfig {
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@Bean
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public OpenAPI customOpenAPI() {
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return new OpenAPI()
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.info(
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new Info()
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.title("Loyalty System Api")
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.version("1.0.0")
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);
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}
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}

‎src/main/java/org/sadtech/example/swagger/controller/PointController.java‎

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package org.sadtech.example.swagger.controller;
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import io.swagger.v3.oas.annotations.Operation;
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import io.swagger.v3.oas.annotations.Parameter;
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import io.swagger.v3.oas.annotations.tags.Tag;
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import org.sadtech.example.swagger.dto.TypeOperation;
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import org.sadtech.example.swagger.dto.UserDto;
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import org.springframework.http.HttpStatus;
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import org.springframework.web.bind.annotation.PathVariable;
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import org.springframework.web.bind.annotation.PostMapping;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RequestPart;
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import org.springframework.web.bind.annotation.RestController;
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import java.util.Map;
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/**
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* @author upagge 30.12.2020
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*/
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@RestController
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@RequestMapping("api/user/point")
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@Tag(name = "Система лояльности", description = "Управляет балами пользователей")
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public class PointController {
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private final Map<String, UserDto> repository;
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public PointController(Map<String, UserDto> repository) {
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this.repository = repository;
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}
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@PostMapping("{key}")
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@Operation(summary = "Управление баллами", description = "Позволяет удалить или добавить баллы пользователю")
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public HttpStatus changePoints(
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@PathVariable @Parameter(description = "Идентификатор пользователя") String key,
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@RequestPart("point") @Parameter(description = "Количество баллов") Long point,
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@RequestPart("type") @Parameter(description = "Тип операции") TypeOperation type
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) {
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final UserDto userDto = repository.get(key);
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userDto.setPoints(
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TypeOperation.PLUS.equals(type) ? userDto.getPoints() + point : userDto.getPoints() - point
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);
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return HttpStatus.OK;
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}
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}

‎src/main/java/org/sadtech/example/swagger/controller/SecretController.java‎

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package org.sadtech.example.swagger.controller;
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import io.swagger.v3.oas.annotations.Hidden;
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import io.swagger.v3.oas.annotations.tags.Tag;
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import org.sadtech.example.swagger.dto.UserDto;
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import org.springframework.http.HttpStatus;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RestController;
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import java.util.Map;
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/**
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* @author upagge 30.12.2020
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*/
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@RestController
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@RequestMapping("api/secret")
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@Hidden
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@Tag(name = "Секретный контролер", description = "Позволяет удалить всех пользователей")
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public class SecretController {
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private final Map<String, UserDto> repository;
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public SecretController(Map<String, UserDto> repository) {
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this.repository = repository;
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}
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@GetMapping(value = "destroy")
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public HttpStatus destroy() {
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repository.clear();
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return HttpStatus.OK;
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}
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}

‎src/main/java/org/sadtech/example/swagger/controller/UserController.java‎

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package org.sadtech.example.swagger.controller;
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import io.swagger.v3.oas.annotations.Operation;
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import io.swagger.v3.oas.annotations.tags.Tag;
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import org.sadtech.example.swagger.dto.UserDto;
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import org.springframework.http.HttpStatus;
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import org.springframework.http.ResponseEntity;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.PathVariable;
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import org.springframework.web.bind.annotation.PostMapping;
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import org.springframework.web.bind.annotation.PutMapping;
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import org.springframework.web.bind.annotation.RequestBody;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RestController;
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import java.util.Map;
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import static org.springframework.util.MimeTypeUtils.APPLICATION_JSON_VALUE;
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/**
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* @author upagge 30.12.2020
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*/
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@RestController
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@RequestMapping("/api/user")
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@Tag(name = "Пользователи", description = "Взаимодействие с пользователями")
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public class UserController {
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private final Map<String, UserDto> repository;
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public UserController(Map<String, UserDto> repository) {
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this.repository = repository;
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}
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@PutMapping(produces = APPLICATION_JSON_VALUE)
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@Operation(summary = "Регистрация пользователя", description = "Позволяет зарегистрировать пользователя")
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public HttpStatus registerUser(@RequestBody UserDto userDto) {
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userDto.setPoints(0L);
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repository.put(userDto.getKey(), userDto);
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return HttpStatus.OK;
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}
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@PostMapping(produces = APPLICATION_JSON_VALUE)
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@Operation(summary = "Обновление пользователя")
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public HttpStatus updateUser(@RequestBody UserDto userDto) {
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if (!repository.containsKey(userDto.getKey())) return HttpStatus.NOT_FOUND;
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if (!repository.get(userDto.getKey()).getPoints().equals(userDto.getPoints())) return HttpStatus.BAD_REQUEST;
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repository.put(userDto.getKey(), userDto);
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return HttpStatus.OK;
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}
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@GetMapping(value = "{key}", produces = APPLICATION_JSON_VALUE)
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@Operation(summary = "Получить пользователя")
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public ResponseEntity<UserDto> getSimpleDto(@PathVariable("key") String key) {
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return ResponseEntity.ok(repository.get(key));
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}
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}

‎src/main/java/org/sadtech/example/swagger/dto/Gender.java‎

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package org.sadtech.example.swagger.dto;
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/**
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*
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* @author upagge 04.01.2021
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*/
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public enum Gender {
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MAN, WOMAN
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}

‎src/main/java/org/sadtech/example/swagger/dto/TypeOperation.java‎

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package org.sadtech.example.swagger.dto;
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/**
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* // TODO: 04.01.2021 Добавить описание.
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*
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* @author upagge 04.01.2021
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*/
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public enum TypeOperation {
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MINUS,
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PLUS
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}

‎src/main/java/org/sadtech/example/swagger/dto/UserDto.java‎

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package org.sadtech.example.swagger.dto;
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import io.swagger.v3.oas.annotations.media.Schema;
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import java.time.LocalDateTime;
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/**
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* @author upagge 30.12.2020
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*/
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@Schema(description = "Пользователь")
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public class UserDto {
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@Schema(description = "Идентификатор", accessMode = Schema.AccessMode.READ_ONLY)
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private String key;
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@Schema(description = "ФИО", example = "Иванов Иван Иванович")
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private String name;
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@Schema(description = "Баллы пользователя")
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private Long points = 0L;
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@Schema(description = "Пол пользователя")
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private Gender gender;
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@Schema(description = "Дата и время регистрации", accessMode = Schema.AccessMode.READ_ONLY)
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private LocalDateTime regDate = LocalDateTime.now();
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public UserDto() {
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}
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public UserDto(String key, String name, Gender gender) {
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this.key = key;
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this.name = name;
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this.gender = gender;
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}
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public static UserDto of(String key, String value, Gender gender) {
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return new UserDto(key, value, gender);
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}
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public String getKey() {
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return key;
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}
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public void setKey(String key) {
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this.key = key;
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}
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public String getName() {
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return name;
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}
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public void setName(String name) {
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this.name = name;
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}
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public Long getPoints() {
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return points;
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}
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public void setPoints(Long points) {
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this.points = points;
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}
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public Gender getGender() {
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return gender;
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}
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public void setGender(Gender gender) {
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this.gender = gender;
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}
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public LocalDateTime getRegDate() {
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return regDate;
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}
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public void setRegDate(LocalDateTime regDate) {
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this.regDate = regDate;
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}
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}

‎src/main/resources/application.properties‎

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