ru.org.linux.comment.ShowCommentsController.java Source code

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Here is the source code for ru.org.linux.comment.ShowCommentsController.java

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/*
 * Copyright 1998-2012 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.comment;

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 ru.org.linux.comment.CommentDao.CommentsListItem;
import ru.org.linux.site.Template;
import ru.org.linux.user.User;
import ru.org.linux.user.UserDao;
import ru.org.linux.user.UserErrorException;
import ru.org.linux.user.UserNotFoundException;
import ru.org.linux.util.ServletParameterException;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.List;

@Controller
public class ShowCommentsController {
    @Autowired
    private UserDao userDao;

    @Autowired
    private CommentService commentService;

    @RequestMapping("/show-comments.jsp")
    public ModelAndView showComments(@RequestParam String nick, @RequestParam(defaultValue = "0") int offset,
            HttpServletRequest request, HttpServletResponse response) throws Exception {
        Template tmpl = Template.getTemplate(request);

        ModelAndView mv = new ModelAndView("show-comments");

        int topics = 50;
        mv.getModel().put("topics", topics);

        if (offset < 0) {
            throw new ServletParameterException("offset<0!?");
        }

        if (offset > 1000) {
            throw new ServletParameterException("?   1000 ");
        }

        mv.getModel().put("offset", offset);

        boolean firstPage = offset == 0;

        if (firstPage) {
            response.setDateHeader("Expires", System.currentTimeMillis() + 90 * 1000);
        } else {
            response.setDateHeader("Expires", System.currentTimeMillis() + 60 * 60 * 1000L);
        }

        mv.getModel().put("firstPage", firstPage);

        User user = userDao.getUser(nick);

        mv.getModel().put("user", user);

        if (user.isAnonymous()) {
            throw new UserErrorException(
                    "?  ? ? ");
        }

        List<CommentsListItem> out = commentService.getUserComments(user, topics, offset);

        mv.getModel().put("list", out);

        if (tmpl.isModeratorSession()) {
            mv.getModel().put("deletedList", commentService.getDeletedComments(user));
        }

        return mv;
    }

    @ExceptionHandler(UserNotFoundException.class)
    @ResponseStatus(HttpStatus.NOT_FOUND)
    public ModelAndView handleUserNotFound() {
        ModelAndView mav = new ModelAndView("errors/good-penguin");
        mav.addObject("msgTitle", ": ?  ??");
        mav.addObject("msgHeader", "?  ??");
        mav.addObject("msgMessage", "");
        return mav;
    }
}