/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 com.sandrini.sandelivery.samples.sprhib.web;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;
import com.sandrini.sandelivery.samples.sprhib.model.User;
import com.sandrini.sandelivery.samples.sprhib.service.UserService;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* A Spring MVC interceptor that adds the currentUser into the request as a request attribute
* before the JSP is rendered. This operation is assumed to be fast because the User should be
* cached in the Hibernate second-level cache.
*/
@Component
public class CurrentUserInterceptor extends HandlerInterceptorAdapter {
private UserService userService;
@Autowired
public void setUserService(UserService userService) {
this.userService = userService;
}
@Override
public void postHandle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, ModelAndView modelAndView) throws Exception {
// Add the current user into the request
User currentUser = userService.getCurrentUser();
if( currentUser != null ) {
httpServletRequest.setAttribute( "currentUser", currentUser );
}
}
}