Fastclass 代理 cglib ASM

https://www.cnblogs.com/cruze/p/3865180.html

https://www.cnblogs.com/cruze/category/593899.html

    private Object handle(MiniRpcRequest request) throws Throwable {
        String serviceKey = RpcServiceHelper.buildServiceKey(request.getClassName(), request.getServiceVersion());
        Object serviceBean = rpcServiceMap.get(serviceKey);

        if (serviceBean == null) {
            throw new RuntimeException(String.format("service not exist: %s:%s", request.getClassName(), request.getMethodName()));
        }

        Class<?> serviceClass = serviceBean.getClass();
        String methodName = request.getMethodName();
        Class<?>[] parameterTypes = request.getParameterTypes();
        Object[] parameters = request.getParams();

        FastClass fastClass = FastClass.create(serviceClass); // 比enHance更简单直接
        int methodIndex = fastClass.getIndex(methodName, parameterTypes);
        return fastClass.invoke(methodIndex, serviceBean, parameters);
    }