src/main/java/org/example/service/UserService.java - master - drobash/AdBoard_service

src/main/java/org/example/service/UserService.java

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dushesp

Добавлен CorsConfig и HealthController для работы с фронтендом

15 апр 2025, 01:00

15 апр 2025, 01:0009315c6

package org.example.service;

import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.example.dto.request.UserRequestDto;
import org.example.dto.response.UserResponseDto;
import org.example.exception.ResourceNotFoundException;
import org.example.exception.UserAlreadyExistsException;
import org.example.exception.UserNotFoundException;
import org.example.mapper.UserMapper;
import org.example.model.User;
import org.example.repository.UserRepository;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

@Service
@RequiredArgsConstructor
@Slf4j
public class UserService {
    private final UserRepository repository;
    private final UserMapper mapper;

    @Transactional
    public UserResponseDto create(UserRequestDto dto) {
        if (repository.existsByUsername(dto.getUsername())) {
            throw new UserAlreadyExistsException("Username already exists");
        }
        if (repository.existsByEmail(dto.getEmail())) {
            throw new UserAlreadyExistsException("Email already exists");
        }

        User user = mapper.toEntity(dto);
        return mapper.toDto(repository.save(user));
    }

    @Transactional(readOnly = true)
    public UserResponseDto get(Long id) {
        return mapper.toDto(findByIdOrThrow(id));
    }

    @Transactional
    public UserResponseDto update(Long id, UserRequestDto dto) {
        User existing = findByIdOrThrow(id);
        mapper.updateFromDto(dto, existing);
        return mapper.toDto(repository.save(existing));
    }

    @Transactional
    public void delete(Long id) {
        if (!repository.existsById(id)) {
            throw new UserNotFoundException(id);
        }
        repository.deleteById(id);
    }

    private User findByIdOrThrow(Long id) {
        return repository.findById(id)
                .orElseThrow(() -> new UserNotFoundException(id));
    }
}