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BeerOrderServiceImpl.java
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BeerOrderServiceImpl.java
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/*
* Copyright 2020 the original author or authors.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package guru.sfg.brewery.services;
import guru.sfg.brewery.domain.BeerOrder;
import guru.sfg.brewery.domain.Customer;
import guru.sfg.brewery.domain.OrderStatusEnum;
import guru.sfg.brewery.repositories.BeerOrderRepository;
import guru.sfg.brewery.repositories.CustomerRepository;
import guru.sfg.brewery.web.mappers.BeerOrderMapper;
import guru.sfg.brewery.web.model.BeerOrderDto;
import guru.sfg.brewery.web.model.BeerOrderPagedList;
import lombok.AllArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Pageable;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import java.util.Optional;
import java.util.UUID;
import java.util.stream.Collectors;
@Slf4j
@Service
@AllArgsConstructor
public class BeerOrderServiceImpl implements BeerOrderService {
private final BeerOrderRepository beerOrderRepository;
private final CustomerRepository customerRepository;
private final BeerOrderMapper beerOrderMapper;
@Override
public BeerOrderPagedList listOrders(UUID customerId, Pageable pageable) {
Optional<Customer> customerOptional = customerRepository.findById(customerId);
if (customerOptional.isPresent()) {
Page<BeerOrder> beerOrderPage =
beerOrderRepository.findAllByCustomer(customerOptional.get(), pageable);
return new BeerOrderPagedList(beerOrderPage
.stream()
.map(beerOrderMapper::beerOrderToDto)
.collect(Collectors.toList()), PageRequest.of(
beerOrderPage.getPageable().getPageNumber(),
beerOrderPage.getPageable().getPageSize()),
beerOrderPage.getTotalElements());
} else {
return null;
}
}
@Transactional
@Override
public BeerOrderDto placeOrder(UUID customerId, BeerOrderDto beerOrderDto) {
Optional<Customer> customerOptional = customerRepository.findById(customerId);
if (customerOptional.isPresent()) {
BeerOrder beerOrder = beerOrderMapper.dtoToBeerOrder(beerOrderDto);
beerOrder.setId(null); //should not be set by outside client
beerOrder.setCustomer(customerOptional.get());
beerOrder.setOrderStatus(OrderStatusEnum.NEW);
beerOrder.getBeerOrderLines().forEach(line -> line.setBeerOrder(beerOrder));
BeerOrder savedBeerOrder = beerOrderRepository.saveAndFlush(beerOrder);
log.debug("Saved Beer Order: " + beerOrder.getId());
return beerOrderMapper.beerOrderToDto(savedBeerOrder);
}
//todo add exception type
throw new RuntimeException("Customer Not Found");
}
@Override
public BeerOrderDto getOrderById(UUID customerId, UUID orderId) {
return beerOrderMapper.beerOrderToDto(getOrder(customerId, orderId));
}
@Override
public void pickupOrder(UUID customerId, UUID orderId) {
BeerOrder beerOrder = getOrder(customerId, orderId);
beerOrder.setOrderStatus(OrderStatusEnum.PICKED_UP);
beerOrderRepository.save(beerOrder);
}
private BeerOrder getOrder(UUID customerId, UUID orderId){
Optional<Customer> customerOptional = customerRepository.findById(customerId);
if(customerOptional.isPresent()){
Optional<BeerOrder> beerOrderOptional = beerOrderRepository.findById(orderId);
if(beerOrderOptional.isPresent()){
BeerOrder beerOrder = beerOrderOptional.get();
// fall to exception if customer id's do not match - order not for customer
if(beerOrder.getCustomer().getId().equals(customerId)){
return beerOrder;
}
}
throw new RuntimeException("Beer Order Not Found");
}
throw new RuntimeException("Customer Not Found");
}
}