New-UserService.java

package org.mono.stacksaga.example.userservice.service;

import lombok.AllArgsConstructor;
import org.mono.stacksaga.example.userservice.entity.UserEntity;
import org.mono.stacksaga.example.userservice.repository.UserRepository;
import org.springframework.stereotype.Service;

import javax.transaction.Transactional;
import java.util.Optional;

@Service
@Transactional
@AllArgsConstructor
public class UserService {
    private final UserRepository userRepository;

    /**
     * check the user is exists or not
     *
     * @param userUid the user uid of you are going to check the status
     * @return if the user is active or not. if user active = true, if not = false and if the user doesn't exist,
     * return false.
     */
    public boolean checkUserIsActive(String userUid) {
        Optional<UserEntity> user = userRepository.findById(userUid);
        if (user.isPresent()) {
            return user.get().getIsActive();
        } else {
            return false;
        }
    }

    /**
     * increment user points by one
     *
     * @param userUid the user id of the user who going have the points
     */
    public void incrementPointsByOne(String userUid) {
        userRepository.incrementPointsByOne(userUid);
    }

    /**
     * compensation of the increment user points by one
     *
     * @param userUid the user id of the user who going have the points
     */
    public void incrementPointsByOneRevert(String userUid) {
        userRepository.incrementPointsByOneRevert(userUid);
    }
}