org.uhp.portlets.news.publisher.ItemServlet.java Source code

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Here is the source code for org.uhp.portlets.news.publisher.ItemServlet.java

Source

package org.uhp.portlets.news.publisher;

/**
 * @Project NewsPortlet : http://sourcesup.cru.fr/newsportlet/ 
 * Copyright (C) 2007-2008 University Nancy 1
 * 
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation version 2 of the License.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
 * details.
 * 
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc., 51
 * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.context.ApplicationContext;
import org.uhp.portlets.news.NewsConstants;
import org.uhp.portlets.news.domain.ItemV;
import org.uhp.portlets.news.service.FeedService;

public class ItemServlet extends BaseAppContext {

    private static final long serialVersionUID = 1L;

    private static final String VIEW_ITEM = "/WEB-INF/jsp/item.jsp";
    private static final String VIEW_ITEMS = "/WEB-INF/jsp/items.jsp";
    private static final String NO_ITEM_VIEW = "/WEB-INF/jsp/noitem.jsp";

    private static final Log LOGGER = LogFactory.getLog(ItemServlet.class);

    public void doGet(HttpServletRequest request, HttpServletResponse response)
            throws IOException, ServletException {
        final ApplicationContext context = getApplicationContext();
        final FeedService feedService = (FeedService) context.getBean("feedService");

        if (feedService == null)
            throw new ServletException(new IllegalStateException("feedService == null"));
        HttpSession session = request.getSession();
        if (LOGGER.isDebugEnabled()) {
            LOGGER.debug("doGet: sesion uid=" + session.getAttribute(NewsConstants.UID) + " remote user="
                    + request.getRemoteUser());
        }
        final boolean isProtected = request.getServletPath().contains(Constants.PRIVATE_ACCESS) ? true : false;
        String jspView = NO_ITEM_VIEW;
        String msgKey = "";
        switch (Integer.parseInt(request.getParameter("c"))) {
        case Constants.VIEW_ITEM:
            String itemId = request.getParameter("itemID");
            if (itemId != null) {
                final ItemV iv = feedService.getItem(Long.valueOf(itemId), isProtected);

                if (iv != null) {
                    request.setAttribute("itemV", iv);
                    List<String> usersUid = new ArrayList<String>();
                    usersUid.add(iv.getItem().getPostedBy());
                    usersUid.add(iv.getItem().getLastUpdatedBy());
                    request.setAttribute(org.uhp.portlets.news.web.support.Constants.ATT_USER_LIST,
                            feedService.getUsersByListUid(usersUid));
                    jspView = VIEW_ITEM;
                } else {
                    LOGGER.debug("Item with id " + itemId + " not found !");
                    //response.sendError(HttpServletResponse.SC_NOT_FOUND, "Item doesn't exist");
                    msgKey = "news.alert.notFoundItem";
                }
            }
            break;
        case Constants.VIEW_ITEMS:
            final String uid = request.getRemoteUser();
            if (LOGGER.isDebugEnabled()) {
                LOGGER.debug("View list items: remote user=" + request.getRemoteUser());
            }
            if (!isProtected || uid == null) {
                jspView = NO_ITEM_VIEW;
                msgKey = "news.alert.noAccessToSecureItem";
            } else {
                request.setAttribute("itemsS", feedService.getItems(Long.valueOf(request.getParameter("tID")),
                        Integer.parseInt(request.getParameter("s")), uid));
                jspView = VIEW_ITEMS;
            }
            break;
        default:
            msgKey = "news.alert.notAuthorizedAction";
            break;
        }
        final ServletContext app = getServletContext();
        final RequestDispatcher dispatcher = app.getRequestDispatcher(jspView);
        if (!msgKey.equals("")) {
            request.setAttribute(org.uhp.portlets.news.web.support.Constants.MSG_ERROR, msgKey);
        }
        dispatcher.forward(request, response);
    }
}