package javaassist;
import javassist.util.proxy.MethodHandler;
import javassist.util.proxy.ProxyFactory;
import javassist.util.proxy.ProxyObject;
import java.lang.reflect.Method;
public class JavassistHelper {
public static <T> T create(Class<T> classs) throws Exception {
ProxyFactory factory = new ProxyFactory();
factory.setSuperclass(classs);
Class clazz = factory.createClass();
MethodHandler handler = new MethodHandler() {
private String value;
@Override
public Object invoke(Object self, Method overridden, Method forwarder, Object[] args) throws Throwable {
System.out.println("hit decorator");
return forwarder.invoke(self, args);
}
};
Object instance = clazz.newInstance();
((ProxyObject) instance).setHandler(handler);
return (T) instance;
}
}