SpringMVC WebArgumentResolve

gistfile1.java

/*
 * @(#)UserRequestWebArgmentResolver.java $version 2012. 2. 27.
 * 
 * Copyright 2007 NHN Corp. All rights Reserved. NHN PROPRIETARY/CONFIDENTIAL.
 * Use is subject to license terms.
 */

package com.naver.videoservice.support;

import org.springframework.core.MethodParameter;
import org.springframework.web.bind.support.WebArgumentResolver;
import org.springframework.web.context.request.NativeWebRequest;
import org.springframework.web.context.request.WebRequest;

/**
 * @author Min Cha
 */
public class UserRequestWebArgmentResolver implements WebArgumentResolver {
	@Override
	public Object resolveArgument(MethodParameter methodParameter, NativeWebRequest webRequest) throws Exception {
		if (methodParameter.getParameterType().isAssignableFrom(UserRequest.class)) {
			return webRequest.getAttribute("userreq", WebRequest.SCOPE_REQUEST);
		}
		
		return UNRESOLVED;
	}

	@Override
	public Object resolveArgument(MethodParameter methodParameter, NativeWebRequest webRequest) throws Exception {
		RequestAttribute result = methodParameter.getParameterAnnotation(RequestAttribute.class);

		if (result == null) {
			return UNRESOLVED;
		}

		System.out.println(result.value());
		return webRequest.getAttribute(result.value(), WebRequest.SCOPE_REQUEST);
	}
}