package com.iailab.framework.excel.core.convert;
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import cn.hutool.core.convert.Convert;
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import com.iailab.framework.dict.core.DictFrameworkUtils;
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import com.iailab.framework.excel.core.annotations.DictFormat;
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import com.alibaba.excel.converters.Converter;
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import com.alibaba.excel.enums.CellDataTypeEnum;
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import com.alibaba.excel.metadata.GlobalConfiguration;
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import com.alibaba.excel.metadata.data.ReadCellData;
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import com.alibaba.excel.metadata.data.WriteCellData;
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import com.alibaba.excel.metadata.property.ExcelContentProperty;
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import lombok.extern.slf4j.Slf4j;
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/**
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* Excel 数据字典转换器
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*
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* @author iailab
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*/
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@Slf4j
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public class DictConvert implements Converter<Object> {
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@Override
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public Class<?> supportJavaTypeKey() {
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throw new UnsupportedOperationException("暂不支持,也不需要");
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}
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@Override
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public CellDataTypeEnum supportExcelTypeKey() {
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throw new UnsupportedOperationException("暂不支持,也不需要");
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}
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@Override
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public Object convertToJavaData(ReadCellData readCellData, ExcelContentProperty contentProperty,
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GlobalConfiguration globalConfiguration) {
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// 使用字典解析
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String type = getType(contentProperty);
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String label = readCellData.getStringValue();
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String value = DictFrameworkUtils.parseDictDataValue(type, label);
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if (value == null) {
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log.error("[convertToJavaData][type({}) 解析不掉 label({})]", type, label);
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return null;
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}
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// 将 String 的 value 转换成对应的属性
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Class<?> fieldClazz = contentProperty.getField().getType();
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return Convert.convert(fieldClazz, value);
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}
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@Override
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public WriteCellData<String> convertToExcelData(Object object, ExcelContentProperty contentProperty,
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GlobalConfiguration globalConfiguration) {
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// 空时,返回空
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if (object == null) {
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return new WriteCellData<>("");
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}
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// 使用字典格式化
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String type = getType(contentProperty);
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String value = String.valueOf(object);
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String label = DictFrameworkUtils.getDictDataLabel(type, value);
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if (label == null) {
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log.error("[convertToExcelData][type({}) 转换不了 label({})]", type, value);
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return new WriteCellData<>("");
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}
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// 生成 Excel 小表格
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return new WriteCellData<>(label);
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}
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private static String getType(ExcelContentProperty contentProperty) {
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return contentProperty.getField().getAnnotation(DictFormat.class).value();
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}
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}
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