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| package io.tomoto.utils;
import org.springframework.beans.BeanUtils;
import java.lang.reflect.InvocationTargetException; import java.util.List; import java.util.Map; import java.util.function.BiConsumer; import java.util.function.Function; import java.util.stream.Collectors;
public class DataTransformUtil {
public static <O, T> T transform(O origin, Class<T> targetType, BiConsumer<O, T> then) { if (origin == null) { return null; } try { T t = targetType.getDeclaredConstructor().newInstance(); BeanUtils.copyProperties(origin, t); then.accept(origin, t); return t; } catch (NoSuchMethodException | InstantiationException | IllegalAccessException | InvocationTargetException e) { throw new RuntimeException(e); } }
public static <O, T> T transform(O origin, Class<T> targetType) { return transform(origin, targetType, (o, t) -> { }); }
public static <O, T> List<T> listTransform(List<O> originList, Class<T> targetType, BiConsumer<O, T> then) { return originList.stream().map(o -> transform(o, targetType, then)).collect(Collectors.toList()); }
public static <O, T> List<T> listTransform(List<O> originList, Class<T> targetType) { return listTransform(originList, targetType, (o, t) -> { }); }
public static <T, K> Map<K, T> listToMap(List<T> list, Function<T, K> keyGetter) { return listToMap(list, keyGetter, Function.identity()); }
public static <T, K, U> Map<K, U> listToMap(List<T> list, Function<T, K> keyGetter, Function<T, U> valueGetter) { return list.stream().collect(Collectors.toMap(keyGetter, valueGetter)); } }
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