RequestPlatformThemeHandlerInterceptor.java

/**
 * Most of the code in the Qalingo project is copyrighted Hoteia and licensed
 * under the Apache License Version 2.0 (release version 0.8.0)
 *         http://www.apache.org/licenses/LICENSE-2.0
 *
 *                   Copyright (c) Hoteia, 2012-2014
 * http://www.hoteia.com - http://twitter.com/hoteia - contact@hoteia.com
 *
 */
package org.hoteia.qalingo.core.web.mvc.interceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.lang.StringUtils;
import org.hoteia.qalingo.core.domain.Company;
import org.hoteia.qalingo.core.domain.User;
import org.hoteia.qalingo.core.web.resolver.RequestData;
import org.hoteia.qalingo.core.web.util.RequestUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

public class RequestPlatformThemeHandlerInterceptor implements HandlerInterceptor {

    private final Logger logger = LoggerFactory.getLogger(getClass());

    @Autowired
    protected RequestUtil requestUtil;

    @Override
    public boolean preHandle(HttpServletRequest request, 
                             HttpServletResponse response, Object handler) throws Exception {
        return true;
    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, 
                                Object handler, Exception exception) throws Exception {
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, 
                           Object handler, ModelAndView modelAndView) throws Exception {
        try {
            final RequestData requestData = requestUtil.getRequestData(request);

            // THEME
            User user = requestData.getUser();
            if (user != null) {
                final Company company = user.getCompany();
                if (company != null && StringUtils.isNotEmpty(company.getTheme())) {
                    String themeFolder = company.getTheme();
                    requestUtil.updateCurrentTheme(request, themeFolder);
                }
            }

        } catch (Exception e) {
            logger.error("inject common datas failed", e);
        }

    }

}