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package cn.hutool.extra.cglib;

import cn.hutool.core.lang.Assert;
import cn.hutool.core.util.ReflectUtil;
import net.sf.cglib.beans.BeanCopier;
import net.sf.cglib.beans.BeanMap;
import net.sf.cglib.core.Converter;

import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.function.BiConsumer;
import java.util.function.Supplier;
import java.util.stream.Collectors;

/**
 * Cglib工具类
 *
 * @author looly
 * @since 5.4.1
 */
public class CglibUtil {

	/**
	 * 拷贝Bean对象属性到目标类型
* 此方法通过指定目标类型自动创建之,然后拷贝属性 * * @param 目标对象类型 * @param source 源bean对象 * @param targetClass 目标bean类,自动实例化此对象 * @return 目标对象 */ public static T copy(Object source, Class targetClass) { return copy(source, targetClass, null); } /** * 拷贝Bean对象属性
* 此方法通过指定目标类型自动创建之,然后拷贝属性 * * @param 目标对象类型 * @param source 源bean对象 * @param targetClass 目标bean类,自动实例化此对象 * @param converter 转换器,无需可传{@code null} * @return 目标对象 */ public static T copy(Object source, Class targetClass, Converter converter) { final T target = ReflectUtil.newInstanceIfPossible(targetClass); copy(source, target, converter); return target; } /** * 拷贝Bean对象属性 * * @param source 源bean对象 * @param target 目标bean对象 */ public static void copy(Object source, Object target) { copy(source, target, null); } /** * 拷贝Bean对象属性 * * @param source 源bean对象 * @param target 目标bean对象 * @param converter 转换器,无需可传{@code null} */ public static void copy(Object source, Object target, Converter converter) { Assert.notNull(source, "Source bean must be not null."); Assert.notNull(target, "Target bean must be not null."); final Class sourceClass = source.getClass(); final Class targetClass = target.getClass(); final BeanCopier beanCopier = BeanCopierCache.INSTANCE.get(sourceClass, targetClass, converter); beanCopier.copy(source, target, converter); } /** * 拷贝List Bean对象属性 * * @param 源bean类型 * @param 目标bean类型 * @param source 源bean对象list * @param target 目标bean对象 * @return 目标bean对象list */ public static List copyList(Collection source, Supplier target) { return copyList(source, target, null, null); } /** * 拷贝List Bean对象属性 * * @param source 源bean对象list * @param target 目标bean对象 * @param converter 转换器,无需可传{@code null} * @param 源bean类型 * @param 目标bean类型 * @return 目标bean对象list * @since 5.4.1 */ public static List copyList(Collection source, Supplier target, Converter converter) { return copyList(source, target, converter, null); } /** * 拷贝List Bean对象属性 * * @param source 源bean对象list * @param target 目标bean对象 * @param callback 回调对象 * @param 源bean类型 * @param 目标bean类型 * @return 目标bean对象list * @since 5.4.1 */ public static List copyList(Collection source, Supplier target, BiConsumer callback) { return copyList(source, target, null, callback); } /** * 拷贝List Bean对象属性 * * @param source 源bean对象list * @param target 目标bean对象 * @param converter 转换器,无需可传{@code null} * @param callback 回调对象 * @param 源bean类型 * @param 目标bean类型 * @return 目标bean对象list */ public static List copyList(Collection source, Supplier target, Converter converter, BiConsumer callback) { return source.stream().map(s -> { T t = target.get(); copy(s, t, converter); if (callback != null) { callback.accept(s, t); } return t; }).collect(Collectors.toList()); } /** * 将Bean转换为Map * * @param bean Bean对象 * @return {@link BeanMap} * @since 5.4.1 */ public static BeanMap toMap(Object bean) { return BeanMap.create(bean); } /** * 将Map中的内容填充至Bean中 * @param map Map * @param bean Bean * @param Bean类型 * @return bean * @since 5.6.3 */ @SuppressWarnings("rawtypes") public static T fillBean(Map map, T bean){ BeanMap.create(bean).putAll(map); return bean; } /** * 将Map转换为Bean * @param map Map * @param beanClass Bean类 * @param Bean类型 * @return bean * @since 5.6.3 */ @SuppressWarnings("rawtypes") public static T toBean(Map map, Class beanClass){ return fillBean(map, ReflectUtil.newInstanceIfPossible(beanClass)); } }