com.github.javaclub.toolbox.model.BeanFields Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of toolbox Show documentation

Javaclub toolbox

There is a newer version: 2.7.44

/*
 * @(#)BeanFields.java	2024-06-14 15:09:23
 *
 * Copyright (c) 2024 - 2099. All Rights Reserved.
 *
 */

package com.github.javaclub.toolbox.model;

import java.io.Serializable;
import java.lang.invoke.SerializedLambda;
import java.lang.reflect.Method;
import java.util.function.Function;

import com.google.common.base.CaseFormat;
import com.google.common.base.Converter;

/**
 * BeanFields
 *
 * @author Gerald Chen
 * @version $Id: BeanFields.java 2024-06-14 15:09:23 Exp $
 */
public class BeanFields {
	
	static final Converter LOWER_UNDERLINE_CONVERTER =
            CaseFormat.LOWER_CAMEL.converterTo(CaseFormat.LOWER_UNDERSCORE);
	
	public static void main(String[] args) {
		// System.out.println(BeanFields.lowerUnderline(XxxDO::getCategoryTreeIds));
	}

	public static  String lowerUnderline(BeanFunction field) {
		SerializedLambda lambda = serializeLambda((Serializable) field);
        String methodName = lambda.getImplMethodName();
        String fieldName = methodName.substring(3); // 移除 "get" 前缀
        return LOWER_UNDERLINE_CONVERTER.convert(fieldName);
	}
	
	static SerializedLambda serializeLambda(Serializable lambda) {
        try {
            Method method = lambda.getClass().getDeclaredMethod("writeReplace");
            method.setAccessible(true);
            return (SerializedLambda) method.invoke(lambda);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }
	
	
	@FunctionalInterface
	public interface BeanFunction extends Function, Serializable {
		
	}
	
	
}