package com.easytoolsoft.easyreport.support.resolver;

import com.easytoolsoft.easyreport.support.annotation.CurrentUser;
import org.springframework.core.MethodParameter;
import org.springframework.web.bind.support.WebDataBinderFactory;
import org.springframework.web.context.request.NativeWebRequest;
import org.springframework.web.method.support.HandlerMethodArgumentResolver;
import org.springframework.web.method.support.ModelAndViewContainer;

/**
 * @author Tom Deng
 * @date 2017-03-25
 */
public class CurrentUserMethodArgumentResolver implements HandlerMethodArgumentResolver {
    public CurrentUserMethodArgumentResolver() {
    }

    @Override
    public boolean supportsParameter(MethodParameter parameter) {
        return parameter.hasParameterAnnotation(CurrentUser.class);
    }

    @Override
    public Object resolveArgument(MethodParameter parameter, ModelAndViewContainer mavContainer,
                                  NativeWebRequest webRequest, WebDataBinderFactory binderFactory) throws Exception {
        CurrentUser currentUserAnnotation = parameter.getParameterAnnotation(CurrentUser.class);
        return webRequest.getAttribute(currentUserAnnotation.value(), NativeWebRequest.SCOPE_REQUEST);
    }
}
