001    /**
002     * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portlet.messageboards.action;
016    
017    import com.liferay.portal.NoSuchLayoutException;
018    import com.liferay.portal.kernel.util.ParamUtil;
019    import com.liferay.portal.model.Layout;
020    import com.liferay.portal.model.LayoutConstants;
021    import com.liferay.portal.model.LayoutTypePortlet;
022    import com.liferay.portal.service.LayoutLocalServiceUtil;
023    import com.liferay.portal.util.PortalUtil;
024    import com.liferay.portal.util.PortletKeys;
025    import com.liferay.portlet.PortletURLImpl;
026    import com.liferay.portlet.messageboards.model.MBMessage;
027    import com.liferay.portlet.messageboards.service.MBMessageLocalServiceUtil;
028    
029    import javax.portlet.PortletMode;
030    import javax.portlet.PortletRequest;
031    import javax.portlet.PortletURL;
032    import javax.portlet.WindowState;
033    
034    import javax.servlet.http.HttpServletRequest;
035    import javax.servlet.http.HttpServletResponse;
036    
037    import org.apache.struts.action.Action;
038    import org.apache.struts.action.ActionForm;
039    import org.apache.struts.action.ActionForward;
040    import org.apache.struts.action.ActionMapping;
041    
042    /**
043     * @author Brian Wing Shun Chan
044     */
045    public class FindMessageAction extends Action {
046    
047            public ActionForward execute(
048                            ActionMapping mapping, ActionForm form, HttpServletRequest request,
049                            HttpServletResponse response)
050                    throws Exception {
051    
052                    try {
053                            long plid = ParamUtil.getLong(request, "p_l_id");
054                            long messageId = ParamUtil.getLong(request, "messageId");
055    
056                            plid = getPlid(plid, messageId);
057    
058                            PortletURL portletURL = new PortletURLImpl(
059                                    request, PortletKeys.MESSAGE_BOARDS, plid,
060                                    PortletRequest.RENDER_PHASE);
061    
062                            portletURL.setWindowState(WindowState.NORMAL);
063                            portletURL.setPortletMode(PortletMode.VIEW);
064    
065                            portletURL.setParameter(
066                                    "struts_action", "/message_boards/view_message");
067                            portletURL.setParameter("messageId", String.valueOf(messageId));
068    
069                            response.sendRedirect(portletURL.toString());
070    
071                            return null;
072                    }
073                    catch (Exception e) {
074                            PortalUtil.sendError(e, request, response);
075    
076                            return null;
077                    }
078            }
079    
080            protected long getPlid(long plid, long messageId) throws Exception {
081                    if (plid != LayoutConstants.DEFAULT_PLID) {
082                            try {
083                                    Layout layout = LayoutLocalServiceUtil.getLayout(plid);
084    
085                                    LayoutTypePortlet layoutTypePortlet =
086                                            (LayoutTypePortlet)layout.getLayoutType();
087    
088                                    if (layoutTypePortlet.hasPortletId(
089                                                    PortletKeys.MESSAGE_BOARDS)) {
090    
091                                            return plid;
092                                    }
093                            }
094                            catch (NoSuchLayoutException nsle) {
095                            }
096                    }
097    
098                    MBMessage message = MBMessageLocalServiceUtil.getMessage(messageId);
099    
100                    plid = PortalUtil.getPlidFromPortletId(
101                            message.getGroupId(), PortletKeys.MESSAGE_BOARDS);
102    
103                    if (plid != LayoutConstants.DEFAULT_PLID) {
104                            return plid;
105                    }
106                    else {
107                            throw new NoSuchLayoutException(
108                                    "No page was found with the Message Boards portlet.");
109                    }
110            }
111    
112    }