package com.gkhy.testFourierSpecialGasMonitor.service.impl;
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import com.gkhy.testFourierSpecialGasMonitor.commons.domain.Result;
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import com.gkhy.testFourierSpecialGasMonitor.commons.domain.SearchResult;
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import com.gkhy.testFourierSpecialGasMonitor.commons.enums.ResultCode;
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import com.gkhy.testFourierSpecialGasMonitor.commons.exception.BusinessException;
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import com.gkhy.testFourierSpecialGasMonitor.commons.model.PageQuery;
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import com.gkhy.testFourierSpecialGasMonitor.entity.MonitorDailyReport;
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import com.gkhy.testFourierSpecialGasMonitor.entity.query.FindDailyReportPageQuery;
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import com.gkhy.testFourierSpecialGasMonitor.entity.resp.FindDailyReportPageRespDTO;
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import com.gkhy.testFourierSpecialGasMonitor.repository.MonitorDailyReportRepository;
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import com.gkhy.testFourierSpecialGasMonitor.service.MonitorDailyReportService;
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import org.springframework.beans.BeanUtils;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.data.domain.Page;
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import org.springframework.data.domain.PageRequest;
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import org.springframework.data.domain.Pageable;
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import org.springframework.data.domain.Sort;
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import org.springframework.data.jpa.domain.Specification;
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import org.springframework.stereotype.Service;
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import org.springframework.util.CollectionUtils;
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import javax.persistence.criteria.*;
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import java.time.LocalDate;
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import java.time.temporal.TemporalAdjusters;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Set;
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import java.util.stream.Collectors;
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/**
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* @author Mr.huang
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* @decription
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* @date 2023/8/9 15:44
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*/
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@Service
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public class MonitorDailyReportServiceImpl implements MonitorDailyReportService {
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@Autowired
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private MonitorDailyReportRepository monitorDailyReportRepository;
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@Override
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public Result findDailyReportPage(PageQuery<FindDailyReportPageQuery> pageQuery) {
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if (pageQuery == null || pageQuery.getPageIndex() == null || pageQuery.getPageSize() == null){
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throw new BusinessException(this.getClass(), ResultCode.PARAM_ERROR_NULL,"分页参数不能为空");
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}
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Pageable pageable = PageRequest.of(pageQuery.getPageIndex()-1, pageQuery.getPageSize(), Sort.Direction.DESC, "gmtCreate");
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Specification<MonitorDailyReport> specification = new Specification<MonitorDailyReport>() {
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@Override
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public Predicate toPredicate(Root root, CriteriaQuery query, CriteriaBuilder criteriaBuilder) {
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Set<Predicate> predicateList = new HashSet<>();
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FindDailyReportPageQuery searchParams = pageQuery.getSearchParams();
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if (searchParams != null && searchParams.getYear() != null && searchParams.getMonth() != null){
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// 获取指定月份的第一天
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LocalDate firstDayOfMonth = LocalDate.of(searchParams.getYear(), searchParams.getMonth(), 1);
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// 获取指定月份的最后一天
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LocalDate lastDayOfMonth = LocalDate.of(searchParams.getYear(), searchParams.getMonth(), 1).with(TemporalAdjusters.lastDayOfMonth());
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predicateList.add(criteriaBuilder.between(root.get("gmtCreate").as(LocalDate.class),firstDayOfMonth,lastDayOfMonth));
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}
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return criteriaBuilder.and(predicateList.toArray(new Predicate[predicateList.size()]));
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}
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};
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SearchResult<List<FindDailyReportPageRespDTO>> searchResult = new SearchResult<>();
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searchResult.setPageIndex(pageQuery.getPageIndex());
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searchResult.setPageSize(pageQuery.getPageSize());
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searchResult.setSuccess();
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Page<MonitorDailyReport> pageResult = monitorDailyReportRepository.findAll(specification,pageable);
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searchResult.setTotal(pageResult.getTotalElements());
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searchResult.setPages(pageResult.getTotalPages());
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if (!CollectionUtils.isEmpty(pageResult.getContent())){
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List<FindDailyReportPageRespDTO> dtos = pageResult.getContent().stream().map(monitorDailyReport -> {
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FindDailyReportPageRespDTO dto = new FindDailyReportPageRespDTO();
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BeanUtils.copyProperties(monitorDailyReport, dto);
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return dto;
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}).collect(Collectors.toList());
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searchResult.setData(dtos);
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}
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return searchResult;
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}
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@Override
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public MonitorDailyReport save(MonitorDailyReport report) {
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return monitorDailyReportRepository.save(report);
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}
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}
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