io.github.whyareyousoseriously.czcommonutils.util.BeanCopierUtil Maven / Gradle / Ivy

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package io.github.whyareyousoseriously.czcommonutils.util;

import net.sf.cglib.beans.BeanCopier;

import java.io.*;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * @author chenzhen
 * Created by chenzhen on 2019/12/25.
 */
public class BeanCopierUtil {

    public static Map beanCopierMap = new HashMap();

    public static void deepCopyObject(Object source, Object target) {
        String beanKey = generateKey(source.getClass(), target.getClass());
        BeanCopier copier = null;
        if (!beanCopierMap.containsKey(beanKey)) {
            copier = BeanCopier.create(source.getClass(), target.getClass(), false);
            beanCopierMap.put(beanKey, copier);
        } else {
            copier = beanCopierMap.get(beanKey);
        }
        copier.copy(source, target, null);
    }

    public static  List deepCopyList(List src) {
        try {
            ByteArrayOutputStream byteout = new ByteArrayOutputStream();
            ObjectOutputStream out = new ObjectOutputStream(byteout);
            out.writeObject(src);
            ByteArrayInputStream bytein = new ByteArrayInputStream(byteout.toByteArray());
            ObjectInputStream in = new ObjectInputStream(bytein);
            @SuppressWarnings("unchecked")
            List dest = (List) in.readObject();
            return dest;
        } catch (ClassNotFoundException | IOException e) {
            e.printStackTrace();
            return null;
        }
    }

    private static String generateKey(Class class1, Class class2) {
        return class1.toString() + class2.toString();
    }
}