com.github.bingoohuang.utils.proxy.Cglibs Maven / Gradle / Ivy

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package com.github.bingoohuang.utils.proxy;

import lombok.experimental.UtilityClass;
import lombok.val;
import net.sf.cglib.proxy.Enhancer;
import net.sf.cglib.proxy.MethodInterceptor;

import java.lang.reflect.Proxy;

/**
 * @author bingoohuang [[email protected]] Created on 2016/12/22.
 */
@UtilityClass
public class Cglibs {
    /**
     * proxied object class will be like
     * com.github.bingoohuang.westcache.RefreshTest$FlushBean$$EnhancerByCGLIB$$8b0b1c89
     * com.github.bingoohuang.westcache.springdemo.CacheInterfaceDemo$$EnhancerBySpringCGLIB$$5669a142
     *
     * @param obj cglib enhanced object.
     * @return underlined super class's name
     */
    public String getSuperClassName(Object obj) {
        String name = obj.getClass().getName();
        int posCglib = name.indexOf("$$EnhancerByCGLIB$$");
        if (posCglib > 0) return name.substring(0, posCglib);

        int posSpring = name.indexOf("$$EnhancerBySpringCGLIB$$");
        if (posSpring > 0) return name.substring(0, posSpring);

        return name;
    }

    /**
     * create a proxied object by cglib.
     *
     * @param superClass  target class.
     * @param interceptor interceptor.
     * @param interfaces  interfaces.
     * @return proxied object.
     */
    public Object proxy(Class superClass,
                        MethodInterceptor interceptor,
                        Class... interfaces) {
        return Enhancer.create(superClass, interfaces, interceptor);
    }

    // proxy class like redis.clients.jedis.Jedis$$EnhancerByCGLIB$$e3d540fd/ com.sun.proxy.$Proxy4
    public boolean isProxyClass(Class targetClass) {
        val targetClassName = targetClass.getName();

        if (targetClassName.contains("CGLIB$$")) return true;
        return Proxy.isProxyClass(targetClass);

    }
}