72 lines
2.3 KiB
Java
72 lines
2.3 KiB
Java
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package com.isu.gaswellwatch.utils;
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import cn.hutool.core.bean.BeanUtil;
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import cn.hutool.core.collection.CollUtil;
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import cn.hutool.core.util.ReflectUtil;
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import com.baomidou.mybatisplus.core.metadata.IPage;
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import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
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import com.isu.gaswellwatch.vo.TreeVO;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.stream.Collectors;
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public class ConverterUtil {
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private static final Logger logger = LoggerFactory.getLogger(ConverterUtil.class);
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public static <T> T convert(Object source, Class<T> tClass) {
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T tar = ReflectUtil.newInstanceIfPossible(tClass);
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BeanUtil.copyProperties(source, tar);
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return tar;
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}
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public static <T> List<T> convert(List<?> source, Class<T> tClass) {
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if(CollUtil.isEmpty(source)) {
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return null;
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}
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return source.stream().map(o -> {
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T tar = ReflectUtil.newInstanceIfPossible(tClass);
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BeanUtil.copyProperties(o,tar);
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return tar;
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}).collect(Collectors.toList());
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}
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public static <T> IPage<T> convertIPage(IPage<?> source, Class<T> tClass) {
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IPage<T> result = new Page<>();
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if(null == source){
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return result ;
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}
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BeanUtil.copyProperties(source,result);
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result.setRecords(convert(source.getRecords(),tClass));
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return result;
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}
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public static <T> Page<T> convertPage(Page<?> source, Class<T> tClass) {
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Page<T> result = new Page<>();
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if(null == source){
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return result ;
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}
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BeanUtil.copyProperties(source,result);
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result.setRecords(convert(source.getRecords(),tClass));
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return result;
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}
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public static <T extends TreeVO> List<T> convertListToTree(List<T> list, Long parentId) {
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if(CollUtil.isEmpty(list)) return new ArrayList<>() ;
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return list.stream()
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// 筛选父节点
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.filter(t -> t.getParent().equals(parentId))
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// 递归设置子节点
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.peek(item -> item.setChildren(convertListToTree(list,item.getId())))
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//排序
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//.sorted(Comparator.comparing(TreeVO::getSort))
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.collect(Collectors.toList());
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}
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}
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