ReplyServiceImpl > SPRING_DATA_JPA

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package web.service;

import java.util.List;

import java.util.Optional;

import java.util.stream.Collectors;

import org.modelmapper.ModelMapper;

import org.springframework.data.domain.Page;

import org.springframework.data.domain.PageRequest;

import org.springframework.data.domain.Pageable;

import org.springframework.data.domain.Sort;

import org.springframework.stereotype.Service;

import lombok.RequiredArgsConstructor;

import lombok.extern.log4j.Log4j2;

import web.domain.Reply;

import web.dto.PageRequestDTO;

import web.dto.PageResponseDTO;

import web.dto.ReplyDTO;

import web.repository.ReplyRepository;

@Service

@RequiredArgsConstructor

@Log4j2

public class ReplyServiceImpl implements ReplyService {

private final ReplyRepository replyRepository;

private final ModelMapper modelMapper;

@Override

public Long register(ReplyDTO replyDTO) {

Reply reply = modelMapper.map(replyDTO, Reply.class);

Long rno = replyRepository.save(reply).getRno();

return rno;

}

@Override

public ReplyDTO read(Long rno) {

Optional<Reply> replyOptional = replyRepository.findById(rno);

Reply reply = replyOptional.orElseThrow();

return modelMapper.map(reply, ReplyDTO.class);

}

@Override

public void modify(ReplyDTO replyDTO) {

Optional<Reply> replyOptional = replyRepository.findById(replyDTO.getRno());

Reply reply = replyOptional.orElseThrow();

reply.changeText(replyDTO.getReplyText()); //댓글의 내용만 수정

replyRepository.save(reply);

}

@Override

public void remove(Long rno) {

replyRepository.deleteById(rno);

}

@Override

public PageResponseDTO<ReplyDTO> getListOfBoard(Long bno, PageRequestDTO pageRequestDTO) {

int i = pageRequestDTO.getPage() <= 0 ? 0:pageRequestDTO.getPage() -1;  //현재 페이지

if(pageRequestDTO.getSize() == 0) { pageRequestDTO.setSize(5); } //페이지당 출력 게시물 수 

if(pageRequestDTO.getBlock() == 0) { pageRequestDTO.setBlock(5); } //블럭 수 

Pageable pageable = PageRequest.of(i, pageRequestDTO.getSize(), Sort.by("rno").descending()); //최신순

Page<Reply> result = replyRepository.listOfBoard(bno, pageable);

List<ReplyDTO> dtoList = result.getContent().stream()

.map(reply -> modelMapper.map(reply, ReplyDTO.class))

.collect(Collectors.toList());

return PageResponseDTO.<ReplyDTO>withAll()

.pageRequestDTO(pageRequestDTO)

.dtoList(dtoList)

.total((int)result.getTotalElements())

.build();

}

}