Entity与VO实体、列表、Map互相转换工具UTIL

港控/mmm° 2022-12-05 15:16 135阅读 0赞

package com.supcon.oms.utils;
    
    import com.supcon.mare.common.util.Pagination;
    import org.dozer.DozerBeanMapperBuilder;
    import org.dozer.Mapper;
    import org.slf4j.Logger;
    import org.slf4j.LoggerFactory;
    import org.springframework.data.domain.Page;
    import org.springframework.stereotype.Component;
    import org.springframework.util.CollectionUtils;
    import java.util.*;
    
    /**
     * @author: zhaoxu
     * @date: 2020/9/10 19:10
     */
    @Component
    public class BaseConverter { 
        private static final Logger log = LoggerFactory.getLogger(com.supcon.mare.common.util.BaseConverter.class);
        Mapper beanMapper = DozerBeanMapperBuilder.buildDefault();
    
        public BaseConverter() { 
        }
    
        public <S, D> D convertSingleObject(S source, Class<D> clazz) { 
            if (source == null) { 
                return null;
            } else { 
                D dest = null;
    
                try { 
                    dest = beanMapper.map(source, clazz);
                } catch (Exception var5) { 
                    log.error("初始化{}对象失败。", clazz, var5);
                }
    
                return dest;
            }
        }
    
        public <S, D> List<D> convertMultiObjectToList(List<S> sourceList, Class<D> destClass) { 
            if (CollectionUtils.isEmpty(sourceList)) { 
                return null;
            } else { 
                List<D> toList = new ArrayList();
                Iterator var4 = sourceList.iterator();
    
                while(var4.hasNext()) { 
                    Object src = var4.next();
                    toList.add(this.convertSingleObject(src, destClass));
                }
    
                return toList;
            }
        }
    
        public <S, D> Map<String, Object> convertMultiObjectToMap(Page<S> srcPages, Class<D> destClass) { 
            Map<String, Object> destMap = new HashMap(100);
            Pagination pagination = new Pagination();
            List<D> destList = new ArrayList();
            if (srcPages != null && srcPages.getContent() != null) { 
                Iterator var6 = srcPages.getContent().iterator();
    
                while(var6.hasNext()) { 
                    Object src = var6.next();
                    destList.add(this.convertSingleObject(src, destClass));
                }
            }
    
            pagination.setTotalPages(srcPages.getTotalPages());
            pagination.setTotal(srcPages.getTotalElements());
            pagination.setCurrent(srcPages.getNumber() + 1);
            pagination.setPageSize(srcPages.getSize());
            destMap.put("total",srcPages.getTotalElements());
            destMap.put("data", destList);
            destMap.put("pageSize", srcPages.getSize());
            destMap.put("current", srcPages.getNumber() + 1);
            return destMap;
        }
    }