MappingUtils.java
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package com.diligrp.tax.central.utils;
import com.diligrp.tax.central.context.ConverterContext;
import com.diligrp.tax.central.converter.IConverter;
import com.diligrp.tax.central.converter.ISubConverter;
import com.diligrp.tax.central.converter.anno.Converter;
import com.diligrp.tax.central.converter.anno.SubConverter;
import com.diligrp.tax.central.domain.BaseDocument;
import com.diligrp.tax.central.domain.BaseMapping;
import com.diligrp.tax.central.domain.document.kingdee.BaseBill;
import com.diligrp.tax.central.exception.TaxAgentServiceException;
import com.diligrp.tax.central.type.TaxSystemType;
import lombok.extern.slf4j.Slf4j;
import java.lang.reflect.Field;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.function.Function;
import java.util.stream.Stream;
/**
* @Author: zhangmeiyang
* @CreateTime: 2025-11-03 11:32
* @Version: todo
*/
@Slf4j
public class MappingUtils {
public static <T> Function<Object, T> mappingObject(Class<T> clazz) {
return item -> {
Map<String, Object> map = new HashMap<>();
Arrays.stream(item.getClass().getDeclaredFields()).filter(field -> field.isAnnotationPresent(Converter.class)).forEach(field -> configureField(item, field, map));
return JsonUtils.convertValue(map, clazz);
};
}
public static void configureField(Object item, Field field, Map<String, Object> map) {
try {
field.setAccessible(true);
Object val = field.get(item);
Converter converter = field.getAnnotation(Converter.class);
IConverter<?> IConverter = ConverterContext.CONVERTER_MAP.get(converter.value());
Object newVal = IConverter.convert(val);
map.put(converter.targetField(), newVal);
} catch (Exception e) {
log.error("MappingUtils.configureField转换失败", e.fillInStackTrace());
throw new TaxAgentServiceException(TaxSystemType.ABNORMAL_PARAMETERS,e);
}
}
public static void configureSubField(Object item, Field field, Map<String, Object> map) {
try {
field.setAccessible(true);
Object val = field.get(item);
SubConverter converter = field.getAnnotation(SubConverter.class);
ISubConverter<?> iSubConverter = ConverterContext.SUB_CONVERTER_MAP.get(converter.value());
Object newVal = iSubConverter.convert((List<?>) val);
map.put(converter.targetField(), newVal);
} catch (Exception e) {
log.error("MappingUtils.configureSubField转换失败", e.fillInStackTrace());
throw new TaxAgentServiceException(TaxSystemType.ABNORMAL_PARAMETERS,e);
}
}
public static <T extends BaseDocument, R extends BaseMapping> R convertValue(T t, Class<R> clazz) {
Map<String, Object> map = new HashMap<>();
Field[] allFields = Stream.concat(
Arrays.stream(t.getClass().getDeclaredFields()),
Arrays.stream(t.getClass().getSuperclass().getDeclaredFields())
).toArray(Field[]::new);
Arrays.stream(allFields).filter(field -> field.isAnnotationPresent(Converter.class)).forEach(field -> configureField(t, field, map));
Arrays.stream(allFields).filter(field -> field.isAnnotationPresent(SubConverter.class)).forEach(field -> configureSubField(t, field, map));
return JsonUtils.convertValue(map, clazz);
}
}