SectionController.java

/*
 * Copyright 1998-2016 Linux.org.ru
 *    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 ru.org.linux.section;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseStatus;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.View;
import org.springframework.web.servlet.view.RedirectView;
import ru.org.linux.group.GroupDao;

import javax.servlet.http.HttpServletResponse;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

@Controller
public class SectionController {
  @Autowired
  private SectionService sectionService;

  @Autowired
  private GroupDao groupDao;

  @RequestMapping("/view-section.jsp")
  public ModelAndView handleRequestInternal(@RequestParam("section") int sectionid, HttpServletResponse response) {
    Section section = sectionService.getSection(sectionid);

    Map<String, Object> params = new HashMap<>();
    params.put("section", section);

    params.put("groups", groupDao.getGroups(section));

    response.setDateHeader("Expires", new Date(System.currentTimeMillis() - 20 * 3600 * 1000).getTime());
    response.setDateHeader("Last-Modified", new Date(System.currentTimeMillis() - 2 * 1000).getTime());

    return new ModelAndView("section", params);
  }

  @RequestMapping("/forum")
  public ModelAndView forum(HttpServletResponse response) {
    return handleRequestInternal(Section.SECTION_FORUM, response);
  }

  @RequestMapping(value="/view-section.jsp", params = {"section=2"})
  public View forumOld() {
    return new RedirectView("/forum/");
  }

  @ExceptionHandler(SectionNotFoundException.class)
  @ResponseStatus(HttpStatus.NOT_FOUND)
  public ModelAndView handleNotFoundException() {
    return new ModelAndView("errors/code404");
  }
}