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package io.gitee.kingdonwang.tool.common.convertor;

import java.util.List;
import java.util.stream.Collectors;

/**
 * 转换器
 *
 * @author kingdonwang
 * @since 2022-10-20 16:09:00
 */
public abstract class AbstractConvertor {

    /**
     * 转换
     *
     * @param source 源
     * @return 目标
     */
    public T convert(S source) {
        if (null == source) {
            return null;
        }
        return doConvert(source);
    }

    /**
     * 逆向转换
     *
     * @param target 目标
     * @return 源
     */
    public S reverseConvert(T target) {
        if (null == target) {
            return null;
        }
        return doReverseConvert(target);
    }

    /**
     * 转换数组
     *
     * @param sourceList 源数组
     * @return 目标数组
     */
    public List convertList(List sourceList) {
        if (null == sourceList) {
            return null;
        }

        return sourceList.stream()
                .map(this::convert)
                .collect(Collectors.toList());
    }

    /**
     * 逆向转换数组
     *
     * @param targetList 目标数组
     * @return 源数组
     */
    public List reverseConvertList(List targetList) {
        if (null == targetList) {
            return null;
        }

        return targetList.stream()
                .map(this::reverseConvert)
                .collect(Collectors.toList());
    }


    /**
     * 转换核心逻辑
     *
     * @param source 源
     * @return 目标
     */
    protected abstract T doConvert(S source);

    /**
     * 逆向转换核心逻辑
     *
     * @param target 目标
     * @return 源
     */
    protected abstract S doReverseConvert(T target);
}