001    /**
002     * Copyright (c) 2000-2011 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.pollsdisplay.action;
016    
017    import com.liferay.portal.kernel.servlet.SessionErrors;
018    import com.liferay.portal.kernel.util.GetterUtil;
019    import com.liferay.portal.kernel.util.StringPool;
020    import com.liferay.portal.struts.PortletAction;
021    import com.liferay.portal.util.WebKeys;
022    import com.liferay.portlet.polls.model.PollsQuestion;
023    import com.liferay.portlet.polls.service.PollsQuestionServiceUtil;
024    
025    import javax.portlet.PortletConfig;
026    import javax.portlet.PortletPreferences;
027    import javax.portlet.RenderRequest;
028    import javax.portlet.RenderResponse;
029    
030    import org.apache.struts.action.ActionForm;
031    import org.apache.struts.action.ActionForward;
032    import org.apache.struts.action.ActionMapping;
033    
034    /**
035     * @author Brian Wing Shun Chan
036     */
037    public class ViewAction extends PortletAction {
038    
039            @Override
040            public ActionForward render(
041                            ActionMapping mapping, ActionForm form, PortletConfig portletConfig,
042                            RenderRequest renderRequest, RenderResponse renderResponse)
043                    throws Exception {
044    
045                    try {
046                            PortletPreferences preferences = renderRequest.getPreferences();
047    
048                            long questionId = GetterUtil.getLong(
049                                    preferences.getValue("questionId", StringPool.BLANK));
050    
051                            if (questionId > 0) {
052                                    PollsQuestion question =
053                                            PollsQuestionServiceUtil.getQuestion(questionId);
054    
055                                    renderRequest.setAttribute(WebKeys.POLLS_QUESTION, question);
056                            }
057                    }
058                    catch (Exception e) {
059                            SessionErrors.add(renderRequest, e.getClass().getName());
060    
061                            return mapping.findForward("portlet.polls_display.error");
062                    }
063    
064                    return mapping.findForward("portlet.polls_display.view");
065            }
066    
067    }