Package org.jresearch.gossip.actions.topic

Source Code of org.jresearch.gossip.actions.topic.ShowTopicAction

/*
* $$Id: ShowTopicAction.java,v 1.10 2004/08/23 11:57:11 bel70 Exp $$
*
* ***** BEGIN LICENSE BLOCK ***** The contents of this file are subject to the
* Mozilla Public License Version 1.1 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
* the specific language governing rights and limitations under the License.
*
* The Original Code is JGossip forum code.
*
* The Initial Developer of the Original Code is the JResearch, Org. Portions
* created by the Initial Developer are Copyright (C) 2004 the Initial
* Developer. All Rights Reserved.
*
* Contributor(s): Dmitry Belov <bel@jresearch.org>
*
* ***** END LICENSE BLOCK *****
*/
/*
* Created on Sep 16, 2003
*/
package org.jresearch.gossip.actions.topic;

import java.lang.reflect.InvocationTargetException;
import java.sql.SQLException;
import java.util.Date;
import java.util.HashMap;
import java.util.Iterator;

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

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.jresearch.gossip.IConst;
import org.jresearch.gossip.actions.BaseAction;
import org.jresearch.gossip.beans.forum.Forum;
import org.jresearch.gossip.beans.forum.Message;
import org.jresearch.gossip.beans.forum.Topic;
import org.jresearch.gossip.beans.user.User;
import org.jresearch.gossip.configuration.Configurator;
import org.jresearch.gossip.dao.ForumDAO;
import org.jresearch.gossip.dao.UserDAO;
import org.jresearch.gossip.exception.SystemException;
import org.jresearch.gossip.forms.ProcessTopicForm;
import org.jresearch.gossip.list.RecordsData;

/**
* DOCUMENT ME!
*
* @author Bel
*/
public class ShowTopicAction extends BaseAction {
  /**
   * DOCUMENT ME!
   *
   * @param mapping
   *            DOCUMENT ME!
   * @param form
   *            DOCUMENT ME!
   * @param request
   *            DOCUMENT ME!
   * @param response
   *            DOCUMENT ME!
   *
   * @return DOCUMENT ME!
   */
  public ActionForward process(ActionMapping mapping, ActionForm form,
      HttpServletRequest request, HttpServletResponse response)
      throws SystemException {
    ProcessTopicForm ptForm = (ProcessTopicForm) form;
    ForumDAO dao = ForumDAO.getInstance();
    UserDAO userdao = UserDAO.getInstance();
    HttpSession session = request.getSession();
    User user = (User) session.getAttribute(IConst.SESSION.USER_KEY);
    int fid = Integer.parseInt(ptForm.getFid());
    int tid = Integer.parseInt(ptForm.getFid());
    try {
     
      Forum currForum = dao.getForumInfo(fid);
      //      check access rights if forum invisible
      if ((currForum.getLocked() == IConst.Forum.STATUS_INVISIBLE)
          && (user.getStatus() < Integer.parseInt(Configurator
              .getInstance().get(IConst.CONFIG.INVADER1)))) {
        return (mapping.findForward(IConst.TOKEN.DENIED));
      }
      request.setAttribute(IConst.REQUEST.CURR_FORUM, currForum);
      session.setAttribute(IConst.SESSION.CURR_FORUM, currForum);
      updateLastVisitTime((HashMap) session
          .getAttribute(IConst.SESSION.LAST_INTIME), ptForm.getTid(),
          dao.now());
      RecordsData recordsData = new RecordsData();
      Topic currThread = dao.getThreadInfo(tid);
      dao.fillMessagesList(user, recordsData, ptForm);
      Iterator it = recordsData.getRecords().iterator();
      boolean attachEnabled = Configurator.getInstance().getBoolean(
          IConst.CONFIG.ENABLE_FILE_UPLOAD);
      if (it.hasNext()) {
        Message mess = (Message) it.next();
        currThread.setSubject(mess.getHeading());
        mess.setSenderInfo(userdao.getSenderInfo(mess.getSender()));
        if (attachEnabled) {
          mess.setAttachments(dao.getAttachmentsInfo(mess.getId()));
        }
      } else {
        return (new ActionForward("/ShowForum.do?fid="
            + ptForm.getFid(), true));
      }
      while (it.hasNext()) {
        Message mess = (Message) it.next();
        mess.setSenderInfo(userdao.getSenderInfo(mess.getSender()));
        if (attachEnabled) {
          mess.setAttachments(dao.getAttachmentsInfo(mess.getId()));
        }
      }

      request.setAttribute(IConst.REQUEST.RECORDS_DATA, recordsData);
      request.setAttribute(IConst.REQUEST.CURR_THREAD, currThread);
      if (dao.checkMod(fid, user)) {
        request.setAttribute(IConst.REQUEST.MOD_FLAG,
            IConst.VALUES.TRUE);
      }
    } catch (SQLException sqle) {
      getServlet().log("Connection.process", sqle);
      throw new SystemException(sqle);
    } catch (InstantiationException e) {
      throw new SystemException(e);
    } catch (IllegalAccessException e) {
      throw new SystemException(e);
    } catch (InvocationTargetException e) {
      throw new SystemException(e);
    } catch (NoSuchMethodException e) {
      throw new SystemException(e);
    }
    return (mapping.findForward("showThread"));
  }

  //  set(update) last visit date for topic
  private void updateLastVisitTime(HashMap last_intime, String tid, Date now) {
    if (last_intime.containsKey(tid)) {
      last_intime.remove(tid);
    }
    last_intime.put(tid, now);
  }
}
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