fabiosoaza/spring-rest-base

package com.restbase.model.service;

import java.util.List;
import java.util.Optional;
import java.util.UUID;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.CacheConfig;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import com.restbase.model.domain.Todo;
import com.restbase.model.repository.TodoRepository;
import com.restbase.model.validator.ConstraintValidators;

import lombok.NoArgsConstructor;
import lombok.extern.slf4j.Slf4j;

@Slf4j
@NoArgsConstructor
@CacheConfig
@Service
@Transactional
public class TodoService {

    private static final String ID_COULD_NOT_BE_FOUND_MSG = "Id %s could not be found";

    private TodoRepository todoRepository;

    @Autowired
    public TodoService(TodoRepository todoRepository) {
        super();
        this.todoRepository = todoRepository;
    }

    public List<Todo> list() {
        log.info("Listing Todos");
        return todoRepository.findAll();

    }

    public void save(Todo todo) {
        log.info("Listing Todos");
        todoRepository.save(todo);
    }
    
    public Optional<Todo> findByUuid(UUID uuid) {
        log.info("Finding Todo By UUID");
        ConstraintValidators.checkIfParameterIsNull(uuid, "uuid");
        return todoRepository.findOneByUuid(uuid);
    }
    
    public void deleteByUUID(UUID uuid) {
        log.info("Deleting Todo");        
        Optional<Todo> toDelete = findByUuid(uuid);
        String message = String.format(ID_COULD_NOT_BE_FOUND_MSG, uuid);
        ConstraintValidators.checkPresent(toDelete, message);
        toDelete.ifPresent(o -> todoRepository.deleteById(o.getId()));
    }


}