asia.gkc.vneedu.authorization.resolver.ActiveUserArgumentResolver.java Source code

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Here is the source code for asia.gkc.vneedu.authorization.resolver.ActiveUserArgumentResolver.java

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/*
 * Copyright 2016 Jakes Lee
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package asia.gkc.vneedu.authorization.resolver;

import asia.gkc.vneedu.authorization.annotation.ActiveUser;
import asia.gkc.vneedu.common.Constants;
import asia.gkc.vneedu.model.User;
import asia.gkc.vneedu.service.UserService;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.MethodParameter;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.support.WebDataBinderFactory;
import org.springframework.web.context.request.NativeWebRequest;
import org.springframework.web.context.request.RequestAttributes;
import org.springframework.web.method.support.HandlerMethodArgumentResolver;
import org.springframework.web.method.support.ModelAndViewContainer;
import org.springframework.web.multipart.support.MissingServletRequestPartException;

/**
 * File Name: ActiveUserArgumentResolver.java
 * Function:
 *
 * @author jakes.
 * @version 1.0
 * @DateTime 4/5/16 8:41 PM
 */

public class ActiveUserArgumentResolver implements HandlerMethodArgumentResolver {
    private final Log logger = LogFactory.getLog(this.getClass());

    @Autowired
    private UserService userService;

    @Override
    public boolean supportsParameter(MethodParameter parameter) {
        return parameter.getParameterType().isAssignableFrom(User.class)
                && parameter.hasParameterAnnotation(ActiveUser.class);
    }

    @Override
    public Object resolveArgument(MethodParameter parameter, ModelAndViewContainer mavContainer,
            NativeWebRequest webRequest, WebDataBinderFactory binderFactory) throws Exception {

        String uuid = (String) webRequest.getAttribute(Constants.USER_ID_IN_REQUEST,
                RequestAttributes.SCOPE_REQUEST);

        logger.info("Inject User[" + uuid + "] into parameter.");

        if (!StringUtils.isEmpty(uuid)) {
            return userService.getObjectById(uuid);
        }

        return null;
        //throw new MissingServletRequestPartException(Constants.USER_ID_IN_REQUEST);
    }
}